Patchwork backport powerpc64-freebsd support to 4.7 branch

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Submitter Andreas Tobler
Date April 28, 2012, 7:45 p.m.
Message ID <4F9C48D4.3050505@fgznet.ch>
Download mbox | patch
Permalink /patch/155694/
State New
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Comments

Andreas Tobler - April 28, 2012, 7:45 p.m.
Hello all,

I did a backport of the powerpc64-freebsd support to the 4.7 branch, 
here the results:

http://gcc.gnu.org/ml/gcc-testresults/2012-04/msg02768.html
http://gcc.gnu.org/ml/gcc-testresults/2012-04/msg02767.html

Is the attached/below ok to commit to 4.7 branch?

TIA,
Andreas

libstdc++:
2012-04-28  Andreas Tobler  <andreast@fgznet.ch>

	Backport from mainline
	2012-03-21  Andreas Tobler  <andreast@fgznet.ch>

	* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
	Skip this test on powerpc64-*-freebsd*.

libgcc:
2012-04-28  Andreas Tobler  <andreast@fgznet.ch>

	Backport from mainline
	2012-03-21  Andreas Tobler  <andreast@fgznet.ch>

	* config.host: Add bits to support powerpc64-*-freebsd*.
	* config/rs6000/freebsd-unwind.h: New file.
	* config/rs6000/t-freebsd64: New file.

gcc:
2012-04-28  Andreas Tobler  <andreast@fgznet.ch>

	Backport from mainline
	2012-03-21  Andreas Tobler  <andreast@fgznet.ch>

	* configure.ac (HAVE_LD_NO_DOT_SYMBOLS): Add powerpc64-*-freebsd*.
	Introduce emul_name to select the right linker emulation for
	powerpc64-*-freebsd*.
	* configure: Regenerate.
	* config.gcc: Add bits to support powerpc64-*-freebsd*.
	* config/rs6000/freebsd.h (POWERPC_FREEBSD): Define.
	* config/rs6000/freebsd64.h: New file.
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Use
	POWERPC_FREEBSD.
	(rs6000_savres_strategy): Likewise.
	(rs6000_savres_routine_name): Likewise.
	(rs6000_elf_file_end): Likewise.
	* config/rs6000/t-freebsd64: New file.
	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set the
	rs6000_current_abi for 64-bit FreeBSD to ABI_AIX.
David Edelsohn - April 30, 2012, 4:54 p.m.
On Sat, Apr 28, 2012 at 3:45 PM, Andreas Tobler <andreast-list@fgznet.ch> wrote:
> Hello all,
>
> I did a backport of the powerpc64-freebsd support to the 4.7 branch, here
> the results:
>
> http://gcc.gnu.org/ml/gcc-testresults/2012-04/msg02768.html
> http://gcc.gnu.org/ml/gcc-testresults/2012-04/msg02767.html
>
> Is the attached/below ok to commit to 4.7 branch?
>
> TIA,
> Andreas
>
> libstdc++:
> 2012-04-28  Andreas Tobler  <andreast@fgznet.ch>
>
>        Backport from mainline
>        2012-03-21  Andreas Tobler  <andreast@fgznet.ch>
>
>        * testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
>        Skip this test on powerpc64-*-freebsd*.
>
> libgcc:
> 2012-04-28  Andreas Tobler  <andreast@fgznet.ch>
>
>        Backport from mainline
>        2012-03-21  Andreas Tobler  <andreast@fgznet.ch>
>
>        * config.host: Add bits to support powerpc64-*-freebsd*.
>        * config/rs6000/freebsd-unwind.h: New file.
>        * config/rs6000/t-freebsd64: New file.
>
> gcc:
> 2012-04-28  Andreas Tobler  <andreast@fgznet.ch>
>
>        Backport from mainline
>        2012-03-21  Andreas Tobler  <andreast@fgznet.ch>
>
>        * configure.ac (HAVE_LD_NO_DOT_SYMBOLS): Add powerpc64-*-freebsd*.
>        Introduce emul_name to select the right linker emulation for
>        powerpc64-*-freebsd*.
>        * configure: Regenerate.
>        * config.gcc: Add bits to support powerpc64-*-freebsd*.
>        * config/rs6000/freebsd.h (POWERPC_FREEBSD): Define.
>        * config/rs6000/freebsd64.h: New file.
>        * config/rs6000/rs6000.c (rs6000_option_override_internal): Use
>        POWERPC_FREEBSD.
>        (rs6000_savres_strategy): Likewise.
>        (rs6000_savres_routine_name): Likewise.
>        (rs6000_elf_file_end): Likewise.
>        * config/rs6000/t-freebsd64: New file.
>        * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set the
>        rs6000_current_abi for 64-bit FreeBSD to ABI_AIX.

I am a little uncomfortable about adding a new feature to a release
branch, but this is not a major configuration and there were previous
delays, so this is okay.

Thanks, David
Andreas Tobler - April 30, 2012, 5:44 p.m.
On 30.04.12 18:54, David Edelsohn wrote:
> On Sat, Apr 28, 2012 at 3:45 PM, Andreas Tobler<andreast-list@fgznet.ch>  wrote:
>> Hello all,
>>
>> I did a backport of the powerpc64-freebsd support to the 4.7 branch, here
>> the results:
>>
>> http://gcc.gnu.org/ml/gcc-testresults/2012-04/msg02768.html
>> http://gcc.gnu.org/ml/gcc-testresults/2012-04/msg02767.html
>>
>> Is the attached/below ok to commit to 4.7 branch?
>>
>> TIA,
>> Andreas
>>
>> libstdc++:
>> 2012-04-28  Andreas Tobler<andreast@fgznet.ch>
>>
>>         Backport from mainline
>>         2012-03-21  Andreas Tobler<andreast@fgznet.ch>
>>
>>         * testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
>>         Skip this test on powerpc64-*-freebsd*.
>>
>> libgcc:
>> 2012-04-28  Andreas Tobler<andreast@fgznet.ch>
>>
>>         Backport from mainline
>>         2012-03-21  Andreas Tobler<andreast@fgznet.ch>
>>
>>         * config.host: Add bits to support powerpc64-*-freebsd*.
>>         * config/rs6000/freebsd-unwind.h: New file.
>>         * config/rs6000/t-freebsd64: New file.
>>
>> gcc:
>> 2012-04-28  Andreas Tobler<andreast@fgznet.ch>
>>
>>         Backport from mainline
>>         2012-03-21  Andreas Tobler<andreast@fgznet.ch>
>>
>>         * configure.ac (HAVE_LD_NO_DOT_SYMBOLS): Add powerpc64-*-freebsd*.
>>         Introduce emul_name to select the right linker emulation for
>>         powerpc64-*-freebsd*.
>>         * configure: Regenerate.
>>         * config.gcc: Add bits to support powerpc64-*-freebsd*.
>>         * config/rs6000/freebsd.h (POWERPC_FREEBSD): Define.
>>         * config/rs6000/freebsd64.h: New file.
>>         * config/rs6000/rs6000.c (rs6000_option_override_internal): Use
>>         POWERPC_FREEBSD.
>>         (rs6000_savres_strategy): Likewise.
>>         (rs6000_savres_routine_name): Likewise.
>>         (rs6000_elf_file_end): Likewise.
>>         * config/rs6000/t-freebsd64: New file.
>>         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set the
>>         rs6000_current_abi for 64-bit FreeBSD to ABI_AIX.
>
> I am a little uncomfortable about adding a new feature to a release
> branch, but this is not a major configuration and there were previous
> delays, so this is okay.

Thank you very much. I appreciate your ack!
This gives us a stable compiler for powerpc64-freebsd. Trunk is also ok, 
but there we have the ups and downs of a development snapshot. 
(Currently the many failures which are also present on powerpc64-linux.)

Andreas

P.S, committed as:
186995/6/7

Patch

Index: libstdc++-v3/testsuite/23_containers/vector/bool/modifiers/insert/31370.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/vector/bool/modifiers/insert/31370.cc	(revision 186918)
+++ libstdc++-v3/testsuite/23_containers/vector/bool/modifiers/insert/31370.cc	(working copy)
@@ -1,4 +1,4 @@ 
-// Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+// Copyright (C) 2007, 2009, 2010, 2012 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -17,6 +17,7 @@ 
 
 // 23.2.5 class vector<bool> [lib.vector.bool]
 
+// { dg-skip-if "" { powerpc64-*-freebsd* } { "*" } { "" } }
 // { dg-do run { xfail *-*-darwin8.[0-4].* } }
 
 #include <vector>
Index: libgcc/config.host
===================================================================
--- libgcc/config.host	(revision 186918)
+++ libgcc/config.host	(working copy)
@@ -848,9 +848,15 @@ 
 	tmake_file="$tmake_file rs6000/t-darwin64 rs6000/t-ibm-ldouble"
 	extra_parts="$extra_parts crt2.o"
 	;;
-powerpc-*-freebsd*)
-	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff rs6000/t-freebsd t-softfp-sfdf t-softfp-excl t-softfp t-slibgcc-libgcc"
+powerpc*-*-freebsd*)
+	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff rs6000/t-freebsd t-softfp-sfdf t-softfp-excl t-softfp"
 	extra_parts="$extra_parts crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
+	case ${host} in
+	powerpc64*)
+	  tmake_file="${tmake_file} rs6000/t-freebsd64"
+	  md_unwind_header=rs6000/freebsd-unwind.h
+	  ;;
+	esac
 	;;
 powerpc-*-netbsd*)
 	tmake_file="$tmake_file rs6000/t-netbsd rs6000/t-crtstuff"
Index: libgcc/config/rs6000/t-freebsd64
===================================================================
--- libgcc/config/rs6000/t-freebsd64	(revision 0)
+++ libgcc/config/rs6000/t-freebsd64	(revision 0)
@@ -0,0 +1,5 @@ 
+HOST_LIBGCC2_CFLAGS += -mno-minimal-toc
+SHLIB_MAPFILES = libgcc-std.ver
+
+softfp_wrap_start := '\#ifndef __powerpc64__'
+softfp_wrap_end := '\#endif'
Index: libgcc/config/rs6000/freebsd-unwind.h
===================================================================
--- libgcc/config/rs6000/freebsd-unwind.h	(revision 0)
+++ libgcc/config/rs6000/freebsd-unwind.h	(revision 0)
@@ -0,0 +1,69 @@ 
+/* DWARF2 EH unwinding support for PowerPC64 FreeBSD.
+   Copyright (C) 2012 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.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define R_LR		65
+
+#define MD_FROB_UPDATE_CONTEXT frob_update_context
+
+static void
+frob_update_context (struct _Unwind_Context *context,
+		     _Unwind_FrameState *fs ATTRIBUTE_UNUSED)
+{
+  const unsigned int *pc = (const unsigned int *) context->ra;
+
+#ifdef __powerpc64__
+  if (fs->regs.reg[2].how == REG_UNSAVED)
+    {
+      /* If the current unwind info (FS) does not contain explicit info
+	 saving R2, then we have to do a minor amount of code reading to
+	 figure out if it was saved.  The big problem here is that the
+	 code that does the save/restore is generated by the linker, so
+	 we have no good way to determine at compile time what to do.  */
+      if (pc[0] == 0xF8410028
+	  || ((pc[0] & 0xFFFF0000) == 0x3D820000
+	      && pc[1] == 0xF8410028))
+	{
+	  /* We are in a plt call stub or r2 adjusting long branch stub,
+	     before r2 has been saved.  Keep REG_UNSAVED.  */
+	}
+      else
+	{
+	  unsigned int *insn
+	    = (unsigned int *) _Unwind_GetGR (context, R_LR);
+	  if (insn && *insn == 0xE8410028)
+	    _Unwind_SetGRPtr (context, 2, context->cfa + 40);
+	  else if (pc[0] == 0x4E800421
+		   && pc[1] == 0xE8410028)
+	    {
+	      /* We are at the bctrl instruction in a call via function
+		 pointer.  gcc always emits the load of the new R2 just
+		 before the bctrl so this is the first and only place
+		 we need to use the stored R2.  */
+	      _Unwind_Word sp = _Unwind_GetGR (context, 1);
+	      _Unwind_SetGRPtr (context, 2, (void *)(sp + 40));
+	    }
+	}
+    }
+#endif
+}
Index: gcc/configure
===================================================================
--- gcc/configure	(revision 186918)
+++ gcc/configure	(working copy)
@@ -26474,7 +26474,15 @@ 
 fi
 
 case "$target:$tm_file" in
-  powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+  powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+  case "$target" in
+     *-*-linux*)
+     emul_name="-melf64ppc"
+      ;;
+     *-*-freebsd*)
+     emul_name="-melf64ppc_fbsd"
+      ;;
+  esac
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker support for omitting dot symbols" >&5
 $as_echo_n "checking linker support for omitting dot symbols... " >&6; }
 if test "${gcc_cv_ld_no_dot_syms+set}" = set; then :
@@ -26504,7 +26512,7 @@ 
 EOF
       if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
          && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
-         && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
+         && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
         gcc_cv_ld_no_dot_syms=yes
       fi
       rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
@@ -26541,7 +26549,7 @@ 
 	ld 9,ie0@got@tprel@l(9)
 EOF
       if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
-         && $gcc_cv_ld -melf64ppc --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+         && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
         gcc_cv_ld_large_toc=yes
       fi
       rm -f conftest conftest.o conftest.s
Index: gcc/configure.ac
===================================================================
--- gcc/configure.ac	(revision 186918)
+++ gcc/configure.ac	(working copy)
@@ -4430,7 +4430,15 @@ 
 fi
 
 case "$target:$tm_file" in
-  powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+  powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
+  case "$target" in
+     *-*-linux*)
+     emul_name="-melf64ppc"
+      ;;
+     *-*-freebsd*)
+     emul_name="-melf64ppc_fbsd"
+      ;;
+  esac
     AC_CACHE_CHECK(linker support for omitting dot symbols,
     gcc_cv_ld_no_dot_syms,
     [gcc_cv_ld_no_dot_syms=no
@@ -4457,7 +4465,7 @@ 
 EOF
       if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
          && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
-         && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
+         && $gcc_cv_ld $emul_name -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
         gcc_cv_ld_no_dot_syms=yes
       fi
       rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
@@ -4487,7 +4495,7 @@ 
 	ld 9,ie0@got@tprel@l(9)
 EOF
       if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
-         && $gcc_cv_ld -melf64ppc --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+         && $gcc_cv_ld $emul_name --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
         gcc_cv_ld_large_toc=yes
       fi
       rm -f conftest conftest.o conftest.s
Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc	(revision 186918)
+++ gcc/config.gcc	(working copy)
@@ -1952,10 +1952,20 @@ 
 	tm_file="${tm_file} ${cpu_type}/darwin8.h ${cpu_type}/darwin64.h"
 	extra_headers=altivec.h
 	;;
-powerpc-*-freebsd*)
-	tm_file="${tm_file} dbxelf.h elfos.h ${fbsd_tm_file} rs6000/sysv4.h rs6000/freebsd.h"
+powerpc*-*-freebsd*)
+	tm_file="${tm_file} dbxelf.h elfos.h ${fbsd_tm_file} rs6000/sysv4.h"
+	extra_options="${extra_options} rs6000/sysv4.opt"
 	tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
-	extra_options="${extra_options} rs6000/sysv4.opt"
+	case ${host} in
+	     powerpc64*)
+	    	tm_file="${tm_file} rs6000/default64.h rs6000/freebsd64.h"
+		tmake_file="${tmake_file} rs6000/t-freebsd64"
+		extra_options="${extra_options} rs6000/linux64.opt"
+		;;
+	     *)
+	        tm_file="${tm_file} rs6000/freebsd.h"
+		;;
+	esac
 	;;
 powerpc-*-netbsd*)
 	tm_file="${tm_file} dbxelf.h elfos.h netbsd.h netbsd-elf.h freebsd-spec.h rs6000/sysv4.h rs6000/netbsd.h"
Index: gcc/config/rs6000/t-freebsd64
===================================================================
--- gcc/config/rs6000/t-freebsd64	(revision 0)
+++ gcc/config/rs6000/t-freebsd64	(revision 0)
@@ -0,0 +1,31 @@ 
+#rs6000/t-freebsd64
+
+# Copyright (C) 2012, 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/>.
+
+# On FreeBSD the 32-bit libraries are found under /usr/lib32.
+# Set MULTILIB_OSDIRNAMES according to this.
+
+MULTILIB_OPTIONS        = m32 msoft-float
+MULTILIB_DIRNAMES       = 32 nof
+MULTILIB_EXTRA_OPTS     = fPIC mstrict-align
+MULTILIB_EXCEPTIONS     =
+MULTILIB_EXCLUSIONS     = !m32/msoft-float 
+MULTILIB_OSDIRNAMES	= ../lib32
+#MULTILIB_MATCHES        = $(MULTILIB_MATCHES_FLOAT)
+
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c	(revision 186918)
+++ gcc/config/rs6000/rs6000.c	(working copy)
@@ -2866,7 +2866,7 @@ 
 	rs6000_long_double_type_size = RS6000_DEFAULT_LONG_DOUBLE_SIZE;
     }
 
-#ifndef POWERPC_LINUX
+#if !defined (POWERPC_LINUX) && !defined (POWERPC_FREEBSD)
   if (!global_options_set.x_rs6000_ieeequad)
     rs6000_ieeequad = 1;
 #endif
@@ -17558,7 +17558,7 @@ 
       && info->cr_save_p)
     strategy |= REST_INLINE_GPRS;
 
-#ifdef POWERPC_LINUX
+#if defined (POWERPC_LINUX) || defined (POWERPC_FREEBSD)
   if (TARGET_64BIT)
     {
       if (!(strategy & SAVE_INLINE_FPRS))
@@ -19098,7 +19098,7 @@ 
     }
   else if (DEFAULT_ABI == ABI_AIX)
     {
-#ifndef POWERPC_LINUX
+#if !defined (POWERPC_LINUX) && !defined (POWERPC_FREEBSD)
       /* No out-of-line save/restore routines for GPRs on AIX.  */
       gcc_assert (!TARGET_AIX || !gpr);
 #endif
@@ -19108,7 +19108,7 @@ 
 	prefix = (savep
 		  ? (lr ? "_savegpr0_" : "_savegpr1_")
 		  : (lr ? "_restgpr0_" : "_restgpr1_"));
-#ifdef POWERPC_LINUX
+#if defined (POWERPC_LINUX) || defined (POWERPC_FREEBSD)
       else if (lr)
 	prefix = (savep ? "_savefpr_" : "_restfpr_");
 #endif
@@ -25103,7 +25103,7 @@ 
 		 aix_struct_return ? 2 : 1);
     }
 #endif
-#ifdef POWERPC_LINUX
+#if defined (POWERPC_LINUX) || defined (POWERPC_FREEBSD)
   if (TARGET_32BIT)
     file_end_indicate_exec_stack ();
 #endif
Index: gcc/config/rs6000/freebsd64.h
===================================================================
--- gcc/config/rs6000/freebsd64.h	(revision 0)
+++ gcc/config/rs6000/freebsd64.h	(revision 0)
@@ -0,0 +1,438 @@ 
+/* Definitions for 64-bit PowerPC running FreeBSD using the ELF format
+   Copyright (C) 2012 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/>.  */
+
+/* Override the defaults, which exist to force the proper definition.  */
+
+#ifdef IN_LIBGCC2
+#undef TARGET_64BIT
+#ifdef __powerpc64__
+#define TARGET_64BIT 1
+#else
+#define TARGET_64BIT 0
+#endif
+#endif
+
+#undef	TARGET_AIX
+#define	TARGET_AIX TARGET_64BIT
+
+#ifdef HAVE_LD_NO_DOT_SYMS
+/* New ABI uses a local sym for the function entry point.  */
+extern int dot_symbols;
+#undef DOT_SYMBOLS
+#define DOT_SYMBOLS dot_symbols
+#endif
+
+#define TARGET_USES_LINUX64_OPT 1
+#ifdef HAVE_LD_LARGE_TOC
+#undef TARGET_CMODEL
+#define TARGET_CMODEL rs6000_current_cmodel
+#define SET_CMODEL(opt) rs6000_current_cmodel = opt
+#else
+#define SET_CMODEL(opt) do {} while (0)
+#endif
+
+/* Until now the 970 is the only Processor where FreeBSD 64-bit runs on.  */
+#undef  PROCESSOR_DEFAULT
+#define PROCESSOR_DEFAULT PROCESSOR_POWER4
+#undef  PROCESSOR_DEFAULT64
+#define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
+
+/* We don't need to generate entries in .fixup, except when
+   -mrelocatable or -mrelocatable-lib is given.  */
+#undef RELOCATABLE_NEEDS_FIXUP
+#define RELOCATABLE_NEEDS_FIXUP \
+  (target_flags & target_flags_explicit & MASK_RELOCATABLE)
+
+#undef  RS6000_ABI_NAME
+#define RS6000_ABI_NAME "freebsd"
+
+#define INVALID_64BIT "-m%s not supported in this configuration"
+#define INVALID_32BIT INVALID_64BIT
+
+#undef  SUBSUBTARGET_OVERRIDE_OPTIONS
+#define SUBSUBTARGET_OVERRIDE_OPTIONS				\
+  do								\
+    {								\
+      if (!global_options_set.x_rs6000_alignment_flags)		\
+	rs6000_alignment_flags = MASK_ALIGN_NATURAL;		\
+      if (TARGET_64BIT)						\
+	{							\
+	  if (DEFAULT_ABI != ABI_AIX)				\
+	    {							\
+	      rs6000_current_abi = ABI_AIX;			\
+	      error (INVALID_64BIT, "call");			\
+	    }							\
+	  dot_symbols = !strcmp (rs6000_abi_name, "aixdesc");	\
+	  if (target_flags & MASK_RELOCATABLE)			\
+	    {							\
+	      target_flags &= ~MASK_RELOCATABLE;		\
+	      error (INVALID_64BIT, "relocatable");		\
+	    }							\
+	  if (target_flags & MASK_EABI)				\
+	    {							\
+	      target_flags &= ~MASK_EABI;			\
+	      error (INVALID_64BIT, "eabi");			\
+	    }							\
+	  if (TARGET_PROTOTYPE)					\
+	    {							\
+	      target_prototype = 0;				\
+	      error (INVALID_64BIT, "prototype");		\
+	    }							\
+	  if ((target_flags & MASK_POWERPC64) == 0)		\
+	    {							\
+	      target_flags |= MASK_POWERPC64;			\
+	      error ("-m64 requires a PowerPC64 cpu");		\
+	    }							\
+	   if ((target_flags_explicit & MASK_MINIMAL_TOC) != 0)	\
+	    {							\
+	      if (global_options_set.x_rs6000_current_cmodel	\
+		  && rs6000_current_cmodel != CMODEL_SMALL)	\
+		error ("-mcmodel incompatible with other toc options"); \
+	      SET_CMODEL (CMODEL_SMALL);			\
+	    }							\
+	  else							\
+	    {							\
+	      if (!global_options_set.x_rs6000_current_cmodel)	\
+		SET_CMODEL (CMODEL_MEDIUM);			\
+	      if (rs6000_current_cmodel != CMODEL_SMALL)	\
+		{						\
+		  TARGET_NO_FP_IN_TOC = 0;			\
+		  TARGET_NO_SUM_IN_TOC = 0;			\
+		}						\
+	    }							\
+	}							\
+    }								\
+  while (0)
+
+#undef	ASM_DEFAULT_SPEC
+#undef	ASM_SPEC
+#undef	LINK_OS_FREEBSD_SPEC
+
+#define	ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
+#define	ASM_SPEC	 "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
+#define	LINK_OS_FREEBSD_SPEC "%{m32:%(link_os_freebsd_spec32)}%{!m32:%(link_os_freebsd_spec64)}"
+
+#define ASM_SPEC32 "-a32 \
+%{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
+%{memb} %{!memb: %{msdata=eabi: -memb}} \
+%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
+    %{mcall-freebsd: -mbig} \
+    %{mcall-i960-old: -mlittle} \
+    %{mcall-linux: -mbig} \
+    %{mcall-gnu: -mbig} \
+    %{mcall-netbsd: -mbig} \
+}}}}"
+
+#define ASM_SPEC64 "-a64"
+
+#define ASM_SPEC_COMMON "%(asm_cpu) \
+%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
+%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
+
+#undef	SUBSUBTARGET_EXTRA_SPECS
+#define SUBSUBTARGET_EXTRA_SPECS					\
+  { "asm_spec_common",		ASM_SPEC_COMMON },			\
+  { "asm_spec32",		ASM_SPEC32 },				\
+  { "asm_spec64",		ASM_SPEC64 },				\
+  { "link_os_freebsd_spec32",	LINK_OS_FREEBSD_SPEC32 },     		\
+  { "link_os_freebsd_spec64",	LINK_OS_FREEBSD_SPEC64 },
+
+#define FREEBSD_DYNAMIC_LINKER32 "/libexec/ld-elf32.so.1"
+#define FREEBSD_DYNAMIC_LINKER64 "/libexec/ld-elf.so.1"
+
+#define LINK_OS_FREEBSD_SPEC_DEF32 "\
+  %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
+  %{v:-V} \
+  %{assert*} %{R*} %{rpath*} %{defsym*} \
+  %{shared:-Bshareable %{h*} %{soname*}} \
+  %{!shared: \
+    %{!static: \
+      %{rdynamic: -export-dynamic} \
+      %{!dynamic-linker:-dynamic-linker " FREEBSD_DYNAMIC_LINKER32 "}} \
+    %{static:-Bstatic}} \
+  %{symbolic:-Bsymbolic}"
+
+#define LINK_OS_FREEBSD_SPEC_DEF64 "\
+  %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
+  %{v:-V} \
+  %{assert*} %{R*} %{rpath*} %{defsym*} \
+  %{shared:-Bshareable %{h*} %{soname*}} \
+  %{!shared: \
+    %{!static: \
+      %{rdynamic: -export-dynamic} \
+      %{!dynamic-linker:-dynamic-linker " FREEBSD_DYNAMIC_LINKER64 "}} \
+    %{static:-Bstatic}} \
+  %{symbolic:-Bsymbolic}"
+
+#define LINK_OS_FREEBSD_SPEC32 "-melf32ppc_fbsd " LINK_OS_FREEBSD_SPEC_DEF32
+  
+#define LINK_OS_FREEBSD_SPEC64 "-melf64ppc_fbsd " LINK_OS_FREEBSD_SPEC_DEF64
+
+#undef	MULTILIB_DEFAULTS
+#define MULTILIB_DEFAULTS { "m64" }
+
+/* PowerPC-64 FreeBSD increases natural record alignment to doubleword if
+   the first field is an FP double, only if in power alignment mode.  */
+#undef  ROUND_TYPE_ALIGN
+#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED)			\
+  ((TARGET_64BIT							\
+    && (TREE_CODE (STRUCT) == RECORD_TYPE				\
+	|| TREE_CODE (STRUCT) == UNION_TYPE				\
+	|| TREE_CODE (STRUCT) == QUAL_UNION_TYPE)			\
+    && TARGET_ALIGN_NATURAL == 0)					\
+   ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED)	\
+   : MAX ((COMPUTED), (SPECIFIED)))
+
+/* Use the default for compiling target libs.  */
+#ifdef IN_TARGET_LIBS
+#undef TARGET_ALIGN_NATURAL
+#define TARGET_ALIGN_NATURAL 1
+#endif
+
+/* Indicate that jump tables go in the text section.  */
+#undef  JUMP_TABLES_IN_TEXT_SECTION
+#define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT
+
+/* The linux ppc64 ABI isn't explicit on whether aggregates smaller
+   than a doubleword should be padded upward or downward.  You could
+   reasonably assume that they follow the normal rules for structure
+   layout treating the parameter area as any other block of memory,
+   then map the reg param area to registers.  i.e. pad upward.
+   Setting both of the following defines results in this behavior.
+   Setting just the first one will result in aggregates that fit in a
+   doubleword being padded downward, and others being padded upward.
+   Not a bad idea as this results in struct { int x; } being passed
+   the same way as an int.  */
+#define AGGREGATE_PADDING_FIXED TARGET_64BIT
+#define AGGREGATES_PAD_UPWARD_ALWAYS 0
+
+/* Specify padding for the last element of a block move between
+   registers and memory.  FIRST is nonzero if this is the only
+   element.  */
+#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
+  (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE))
+
+/* FreeBSD doesn't support saving and restoring 64-bit regs with a 32-bit
+   kernel. This is supported when running on a 64-bit kernel with
+   COMPAT_FREEBSD32, but tell GCC it isn't so that our 32-bit binaries
+   are compatible. */
+#define OS_MISSING_POWERPC64 !TARGET_64BIT
+
+#undef  FBSD_TARGET_CPU_CPP_BUILTINS
+#define FBSD_TARGET_CPU_CPP_BUILTINS()			\
+  do							\
+    {							\
+      builtin_define ("__PPC__");			\
+      builtin_define ("__ppc__");			\
+      builtin_define ("__powerpc__");			\
+      if (TARGET_64BIT)					\
+	{						\
+	  builtin_define ("__arch64__");		\
+	  builtin_define ("__LP64__");			\
+	  builtin_define ("__PPC64__");			\
+	  builtin_define ("__powerpc64__");		\
+	  builtin_assert ("cpu=powerpc64");		\
+	  builtin_assert ("machine=powerpc64");		\
+	}						\
+      else						\
+	{						\
+	  builtin_define_std ("PPC");			\
+	  builtin_define_std ("powerpc");		\
+	  builtin_assert ("cpu=powerpc");		\
+	  builtin_assert ("machine=powerpc");		\
+	  TARGET_OS_SYSV_CPP_BUILTINS ();		\
+	}						\
+    }							\
+  while (0)
+
+#undef	CPP_OS_DEFAULT_SPEC
+#define CPP_OS_DEFAULT_SPEC "%(cpp_os_freebsd)"
+
+#undef CPP_OS_FREEBSD_SPEC
+#define CPP_OS_FREEBSD_SPEC ""
+
+#undef	STARTFILE_DEFAULT_SPEC
+#define STARTFILE_DEFAULT_SPEC "%(startfile_freebsd)"
+
+#undef	ENDFILE_DEFAULT_SPEC
+#define ENDFILE_DEFAULT_SPEC "%(endfile_freebsd)"
+
+#undef	LIB_DEFAULT_SPEC
+#define LIB_DEFAULT_SPEC "%(lib_freebsd)"
+
+#undef	LINK_START_DEFAULT_SPEC
+#define LINK_START_DEFAULT_SPEC "%(link_start_freebsd)"
+
+#undef	LINK_OS_DEFAULT_SPEC
+#define	LINK_OS_DEFAULT_SPEC "%(link_os_freebsd)"
+
+/* XXX: This is wrong for many platforms in sysv4.h.
+   We should work on getting that definition fixed.  */
+#undef  LINK_SHLIB_SPEC
+#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
+
+
+/************************[  Target stuff  ]***********************************/
+
+/* Define the actual types of some ANSI-mandated types.  
+   Needs to agree with <machine/ansi.h>.  GCC defaults come from c-decl.c,
+   c-common.c, and config/<arch>/<arch>.h.  */
+
+
+#undef  SIZE_TYPE
+#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
+
+#undef  PTRDIFF_TYPE
+#define PTRDIFF_TYPE	(TARGET_64BIT ? "long int" : "int")
+
+/* rs6000.h gets this wrong for FreeBSD.  We use the GCC defaults instead.  */
+#undef WCHAR_TYPE
+#define	WCHAR_TYPE      (TARGET_64BIT ? "int" : "long int")
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+
+/* Override rs6000.h definition.  */
+#undef  ASM_APP_ON
+#define ASM_APP_ON "#APP\n"
+
+/* Override rs6000.h definition.  */
+#undef  ASM_APP_OFF
+#define ASM_APP_OFF "#NO_APP\n"
+
+/* PowerPC no-op instruction.  */
+#undef  RS6000_CALL_GLUE
+#define RS6000_CALL_GLUE (TARGET_64BIT ? "nop" : "cror 31,31,31")
+
+/* Function profiling bits */
+#undef  RS6000_MCOUNT
+#define RS6000_MCOUNT "_mcount"
+
+#define PROFILE_HOOK(LABEL) \
+  do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
+
+/* _init and _fini functions are built from bits spread across many
+   object files, each potentially with a different TOC pointer.  For
+   that reason, place a nop after the call so that the linker can
+   restore the TOC pointer if a TOC adjusting call stub is needed.  */
+#ifdef __powerpc64__
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
+  asm (SECTION_OP "\n"					\
+"	bl " #FUNC "\n"					\
+"	nop\n"						\
+"	.previous");
+#endif
+
+/* FP save and restore routines.  */
+#undef  SAVE_FP_PREFIX
+#define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_")
+#undef  SAVE_FP_SUFFIX
+#define SAVE_FP_SUFFIX ""
+#undef  RESTORE_FP_PREFIX
+#define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_")
+#undef  RESTORE_FP_SUFFIX
+#define RESTORE_FP_SUFFIX ""
+
+/* Select a format to encode pointers in exception handling data.  CODE
+   is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
+   true if the symbol may be affected by dynamic relocations.  */
+#undef	ASM_PREFERRED_EH_DATA_FORMAT
+#define	ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
+  ((TARGET_64BIT || flag_pic || TARGET_RELOCATABLE)			\
+   ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel		\
+      | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4))		\
+   : DW_EH_PE_absptr)
+
+/* Static stack checking is supported by means of probes.  */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
+/* The default value isn't sufficient in 64-bit mode.  */
+#define STACK_CHECK_PROTECT (TARGET_64BIT ? 16 * 1024 : 12 * 1024)
+
+#define DBX_REGISTER_NUMBER(REGNO) rs6000_dbx_register_number (REGNO)
+
+/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given.  */
+#undef  ADJUST_FIELD_ALIGN
+#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
+  ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE)     \
+   ? 128                                                                \
+   : (TARGET_64BIT                                                      \
+      && TARGET_ALIGN_NATURAL == 0                                      \
+      && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode)   \
+   ? MIN ((COMPUTED), 32)                                               \
+   : (COMPUTED))
+
+#undef  TOC_SECTION_ASM_OP
+#define TOC_SECTION_ASM_OP \
+  (TARGET_64BIT                                         \
+   ? "\t.section\t\".toc\",\"aw\""                      \
+   : "\t.section\t\".got\",\"aw\"")
+
+#undef  MINIMAL_TOC_SECTION_ASM_OP
+#define MINIMAL_TOC_SECTION_ASM_OP \
+  (TARGET_64BIT                                         \
+   ? "\t.section\t\".toc1\",\"aw\""                     \
+   : ((TARGET_RELOCATABLE || flag_pic)                  \
+      ? "\t.section\t\".got2\",\"aw\""                  \
+      : "\t.section\t\".got1\",\"aw\""))
+
+/* This is how to declare the size of a function.  */
+#undef  ASM_DECLARE_FUNCTION_SIZE
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)                    \
+  do                                                                    \
+    {                                                                   \
+      if (!flag_inhibit_size_directive)                                 \
+        {                                                               \
+          fputs ("\t.size\t", (FILE));                                  \
+          if (TARGET_64BIT && DOT_SYMBOLS)                              \
+            putc ('.', (FILE));                                         \
+          assemble_name ((FILE), (FNAME));                              \
+          fputs (",.-", (FILE));                                        \
+          rs6000_output_function_entry (FILE, FNAME);                   \
+          putc ('\n', (FILE));                                          \
+        }                                                               \
+    }                                                                   \
+  while (0)
+
+#undef  ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
+#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE)                        \
+  (TARGET_TOC                                                           \
+   && (GET_CODE (X) == SYMBOL_REF                                       \
+       || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS      \
+           && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF)           \
+       || GET_CODE (X) == LABEL_REF                                     \
+       || (GET_CODE (X) == CONST_INT                                    \
+           && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode))      \
+       || (GET_CODE (X) == CONST_DOUBLE                                 \
+           && ((TARGET_64BIT                                            \
+                && (TARGET_MINIMAL_TOC                                  \
+                    || (SCALAR_FLOAT_MODE_P (GET_MODE (X))              \
+                        && ! TARGET_NO_FP_IN_TOC)))                     \
+               || (!TARGET_64BIT                                        \
+                   && !TARGET_NO_FP_IN_TOC                              \
+                   && !TARGET_RELOCATABLE                               \
+                   && SCALAR_FLOAT_MODE_P (GET_MODE (X))                \
+                   && BITS_PER_WORD == HOST_BITS_PER_INT)))))
+
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
+#define POWERPC_FREEBSD
Index: gcc/config/rs6000/freebsd.h
===================================================================
--- gcc/config/rs6000/freebsd.h	(revision 186918)
+++ gcc/config/rs6000/freebsd.h	(working copy)
@@ -75,3 +75,5 @@ 
   (target_flags & target_flags_explicit & MASK_RELOCATABLE)
 
 #define DBX_REGISTER_NUMBER(REGNO) rs6000_dbx_register_number (REGNO)
+
+#define POWERPC_FREEBSD
Index: gcc/config/rs6000/sysv4.h
===================================================================
--- gcc/config/rs6000/sysv4.h	(revision 186918)
+++ gcc/config/rs6000/sysv4.h	(working copy)
@@ -89,9 +89,8 @@ 
     }									\
   else if (!strcmp (rs6000_abi_name, "aixdesc"))			\
     rs6000_current_abi = ABI_AIX;					\
-  else if (!strcmp (rs6000_abi_name, "freebsd"))			\
-    rs6000_current_abi = ABI_V4;					\
-  else if (!strcmp (rs6000_abi_name, "linux"))				\
+  else if (!strcmp (rs6000_abi_name, "freebsd")				\
+	   || !strcmp (rs6000_abi_name, "linux"))			\
     {									\
       if (TARGET_64BIT)							\
 	rs6000_current_abi = ABI_AIX;					\