Wed Apr 18 16:43:55 2007 Google Inc. <opensource@google.com>

* google-perftools: version 0.91 release * Brown-paper-bag bugfix: compilation error on some x86-64 machines git-svn-id: http://gperftools.googlecode.com/svn/trunk@30 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
author: csilvers <csilvers@6b5cf1ce-ec42-a296-1ba9-69fdba395a50> 2007-04-19 00:53:22 +0000
committer: csilvers <csilvers@6b5cf1ce-ec42-a296-1ba9-69fdba395a50> 2007-04-19 00:53:22 +0000
commit: 6878379d5bab87c787cdd3487b5620a9c8adf376 (patch)
tree: a91105cdac99c5cf7deeec27af31a9a175727f38
parent: 74ad5d57ec08abace386befc6c3c695d85f44d1a (diff)
download: gperftools-6878379d5bab87c787cdd3487b5620a9c8adf376.tar.gz
10 files changed, 605 insertions, 703 deletions
diff --git a/ChangeLog b/ChangeLog
index 4cd8dc9..fbe3376 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -126,3 +126,8 @@ Fri Apr 13 14:50:51 2007  Google Inc. <opensource@google.com>
 	*** KNOWN PROBLEMS:
 	* CPU-profiling may crash on x86_64 (64-bit) systems.  See the README
 	* Profiling/heap-checking may deadlock on x86_64 systems.  See README
+
+Wed Apr 18 16:43:55 2007  Google Inc. <opensource@google.com>
+
+	* google-perftools: version 0.91 release
+	* Brown-paper-bag bugfix: compilation error on some x86-64 machines
diff --git a/README b/README
index c4471d4..2ebe350 100644
--- a/README
+++ b/README
@@ -115,6 +115,18 @@ successfully built and tested the core tcmalloc library
 details.
 
 
+PERFORMANCE
+-----------
+
+If you're interested in some third-party comparisons of tcmalloc to
+other malloc libraries, here are a few web pages that have been
+brought to our attention.  The first discusses the effect of using
+various malloc libraries on OpenLDAP.  The second compares tcmalloc to
+win32's malloc.
+  http://www.highlandsun.com/hyc/malloc/
+  http://gaiacrtn.free.fr/articles/win32perftools.html
+
+
 64-BIT ISSUES
 -------------
 
diff --git a/config.guess b/config.guess
index ad5281e..dff9e48 100755
--- a/config.guess
+++ b/config.guess
@@ -1,9 +1,9 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+#   Free Software Foundation, Inc.
 
-timestamp='2005-08-03'
+timestamp='2001-09-04'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -17,18 +17,15 @@ timestamp='2005-08-03'
 #
 # 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.
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 
-
-# Originally written by Per Bothner <per@bothner.com>.
-# Please send patches to <config-patches@gnu.org>.  Submit a context
-# diff and a properly formatted ChangeLog entry.
+# Written by Per Bothner <bothner@cygnus.com>.
+# Please send patches to <config-patches@gnu.org>.
 #
 # This script attempts to guess a canonical system name similar to
 # config.sub.  If it succeeds, it prints the system name on stdout, and
@@ -55,7 +52,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
@@ -68,11 +65,11 @@ Try \`$me --help' for more information."
 while test $# -gt 0 ; do
   case $1 in
     --time-stamp | --time* | -t )
-       echo "$timestamp" ; exit ;;
+       echo "$timestamp" ; exit 0 ;;
     --version | -v )
-       echo "$version" ; exit ;;
+       echo "$version" ; exit 0 ;;
     --help | --h* | -h )
-       echo "$usage"; exit ;;
+       echo "$usage"; exit 0 ;;
     -- )     # Stop option processing
        shift; break ;;
     - )	# Use stdin as input.
@@ -90,42 +87,30 @@ if test $# != 0; then
   exit 1
 fi
 
-trap 'exit 1' 1 2 15
 
-# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
-# compiler to aid in system detection is discouraged as it requires
-# temporary files to be created and, as you can see below, it is a
-# headache to deal with in a portable fashion.
+dummy=dummy-$$
+trap 'rm -f $dummy.c $dummy.o $dummy.rel $dummy; exit 1' 1 2 15
 
+# CC_FOR_BUILD -- compiler used by this script.
 # Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
 # use `HOST_CC' if defined, but it is deprecated.
 
-# Portable tmp directory creation inspired by the Autoconf team.
-
-set_cc_for_build='
-trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
-trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
-: ${TMPDIR=/tmp} ;
- { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
- { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
- { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
- { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
-dummy=$tmp/dummy ;
-tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
-case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,)    echo "int x;" > $dummy.c ;
-	for c in cc gcc c89 c99 ; do
-	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+set_cc_for_build='case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int dummy(){}" > $dummy.c ;
+	for c in cc gcc c89 ; do
+	  ($c $dummy.c -c -o $dummy.o) >/dev/null 2>&1 ;
+	  if test $? = 0 ; then
 	     CC_FOR_BUILD="$c"; break ;
 	  fi ;
 	done ;
+	rm -f $dummy.c $dummy.o $dummy.rel ;
 	if test x"$CC_FOR_BUILD" = x ; then
 	  CC_FOR_BUILD=no_compiler_found ;
 	fi
 	;;
  ,,*)   CC_FOR_BUILD=$CC ;;
  ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
-esac ; set_cc_for_build= ;'
+esac'
 
 # This is needed to find uname on a Pyramid OSx when run in the BSD universe.
 # (ghazi@noc.rutgers.edu 1994-08-24)
@@ -142,30 +127,29 @@ UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
 
 case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:NetBSD:*:*)
-	# NetBSD (nbsd) targets should (where applicable) match one or
+	# Netbsd (nbsd) targets should (where applicable) match one or
 	# more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
 	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
 	# switched to ELF, *-*-netbsd* would select the old
 	# object file format.  This provides both forward
 	# compatibility and a consistent mechanism for selecting the
 	# object file format.
-	#
-	# Note: NetBSD doesn't particularly care about the vendor
-	# portion of the name.  We always set it to "unknown".
-	sysctl="sysctl -n hw.machine_arch"
-	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
-	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
-	case "${UNAME_MACHINE_ARCH}" in
-	    armeb) machine=armeb-unknown ;;
-	    arm*) machine=arm-unknown ;;
-	    sh3el) machine=shl-unknown ;;
-	    sh3eb) machine=sh-unknown ;;
-	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+	# Determine the machine/vendor (is the vendor relevant).
+	case "${UNAME_MACHINE}" in
+	    amiga) machine=m68k-unknown ;;
+	    arm32) machine=arm-unknown ;;
+	    atari*) machine=m68k-atari ;;
+	    sun3*) machine=m68k-sun ;;
+	    mac68k) machine=m68k-apple ;;
+	    macppc) machine=powerpc-apple ;;
+	    hp3[0-9][05]) machine=m68k-hp ;;
+	    ibmrt|romp-ibm) machine=romp-ibm ;;
+	    *) machine=${UNAME_MACHINE}-unknown ;;
 	esac
 	# The Operating System including object format, if it has switched
 	# to ELF recently, or will in the future.
-	case "${UNAME_MACHINE_ARCH}" in
-	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+	case "${UNAME_MACHINE}" in
+	    i386|sparc|amiga|arm*|hp300|mvme68k|vax|atari|luna68k|mac68k|news68k|next68k|pc532|sun3*|x68k)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
 			| grep __ELF__ >/dev/null
@@ -182,125 +166,120 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		;;
 	esac
 	# The OS release
-	# Debian GNU/NetBSD machines have a different userland, and
-	# thus, need a distinct triplet. However, they do not need
-	# kernel version information, so it can be replaced with a
-	# suitable tag, in the style of linux-gnu.
-	case "${UNAME_VERSION}" in
-	    Debian*)
-		release='-gnu'
-		;;
-	    *)
-		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
-		;;
-	esac
+	release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
 	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
 	# contains redundant information, the shorter form:
 	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
 	echo "${machine}-${os}${release}"
-	exit ;;
-    *:OpenBSD:*:*)
-	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
-	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
-	exit ;;
-    *:ekkoBSD:*:*)
-	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
-	exit ;;
-    macppc:MirBSD:*:*)
-	echo powerppc-unknown-mirbsd${UNAME_RELEASE}
-	exit ;;
-    *:MirBSD:*:*)
-	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     alpha:OSF1:*:*)
-	case $UNAME_RELEASE in
-	*4.0)
+	if test $UNAME_RELEASE = "V4.0"; then
 		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
-		;;
-	*5.*)
-	        UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
-		;;
-	esac
-	# According to Compaq, /usr/sbin/psrinfo has been available on
-	# OSF/1 and Tru64 systems produced since 1995.  I hope that
-	# covers most systems running today.  This code pipes the CPU
-	# types through head -n 1, so we only detect the type of CPU 0.
-	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
-	case "$ALPHA_CPU_TYPE" in
-	    "EV4 (21064)")
-		UNAME_MACHINE="alpha" ;;
-	    "EV4.5 (21064)")
-		UNAME_MACHINE="alpha" ;;
-	    "LCA4 (21066/21068)")
-		UNAME_MACHINE="alpha" ;;
-	    "EV5 (21164)")
-		UNAME_MACHINE="alphaev5" ;;
-	    "EV5.6 (21164A)")
-		UNAME_MACHINE="alphaev56" ;;
-	    "EV5.6 (21164PC)")
-		UNAME_MACHINE="alphapca56" ;;
-	    "EV5.7 (21164PC)")
-		UNAME_MACHINE="alphapca57" ;;
-	    "EV6 (21264)")
-		UNAME_MACHINE="alphaev6" ;;
-	    "EV6.7 (21264A)")
-		UNAME_MACHINE="alphaev67" ;;
-	    "EV6.8CB (21264C)")
-		UNAME_MACHINE="alphaev68" ;;
-	    "EV6.8AL (21264B)")
-		UNAME_MACHINE="alphaev68" ;;
-	    "EV6.8CX (21264D)")
-		UNAME_MACHINE="alphaev68" ;;
-	    "EV6.9A (21264/EV69A)")
-		UNAME_MACHINE="alphaev69" ;;
-	    "EV7 (21364)")
-		UNAME_MACHINE="alphaev7" ;;
-	    "EV7.9 (21364A)")
-		UNAME_MACHINE="alphaev79" ;;
-	esac
-	# A Pn.n version is a patched version.
+	fi
 	# A Vn.n version is a released version.
 	# A Tn.n version is a released field test version.
 	# A Xn.n version is an unreleased experimental baselevel.
 	# 1.2 uses "1.2" for uname -r.
-	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	exit ;;
+	cat <<EOF >$dummy.s
+	.data
+\$Lformat:
+	.byte 37,100,45,37,120,10,0	# "%d-%x\n"
+
+	.text
+	.globl main
+	.align 4
+	.ent main
+main:
+	.frame \$30,16,\$26,0
+	ldgp \$29,0(\$27)
+	.prologue 1
+	.long 0x47e03d80 # implver \$0
+	lda \$2,-1
+	.long 0x47e20c21 # amask \$2,\$1
+	lda \$16,\$Lformat
+	mov \$0,\$17
+	not \$1,\$18
+	jsr \$26,printf
+	ldgp \$29,0(\$26)
+	mov 0,\$16
+	jsr \$26,exit
+	.end main
+EOF
+	eval $set_cc_for_build
+	$CC_FOR_BUILD $dummy.s -o $dummy 2>/dev/null
+	if test "$?" = 0 ; then
+		case `./$dummy` in
+			0-0)
+				UNAME_MACHINE="alpha"
+				;;
+			1-0)
+				UNAME_MACHINE="alphaev5"
+				;;
+			1-1)
+				UNAME_MACHINE="alphaev56"
+				;;
+			1-101)
+				UNAME_MACHINE="alphapca56"
+				;;
+			2-303)
+				UNAME_MACHINE="alphaev6"
+				;;
+			2-307)
+				UNAME_MACHINE="alphaev67"
+				;;
+			2-1307)
+				UNAME_MACHINE="alphaev68"
+				;;
+		esac
+	fi
+	rm -f $dummy.s $dummy
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	exit 0 ;;
     Alpha\ *:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# Should we change UNAME_MACHINE based on the output of uname instead
 	# of the specific Alpha model?
 	echo alpha-pc-interix
-	exit ;;
+	exit 0 ;;
     21064:Windows_NT:50:3)
 	echo alpha-dec-winnt3.5
-	exit ;;
+	exit 0 ;;
     Amiga*:UNIX_System_V:4.0:*)
 	echo m68k-unknown-sysv4
-	exit ;;
+	exit 0;;
+    amiga:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
     *:[Aa]miga[Oo][Ss]:*:*)
 	echo ${UNAME_MACHINE}-unknown-amigaos
-	exit ;;
-    *:[Mm]orph[Oo][Ss]:*:*)
-	echo ${UNAME_MACHINE}-unknown-morphos
-	exit ;;
+	exit 0 ;;
+    arc64:OpenBSD:*:*)
+	echo mips64el-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    arc:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    hkmips:OpenBSD:*:*)
+	echo mips-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    pmax:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    sgi:OpenBSD:*:*)
+	echo mips-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    wgrisc:OpenBSD:*:*)
+	echo mipsel-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
     *:OS/390:*:*)
 	echo i370-ibm-openedition
-	exit ;;
-    *:z/VM:*:*)
-	echo s390-ibm-zvmoe
-	exit ;;
-    *:OS400:*:*)
-        echo powerpc-ibm-os400
-	exit ;;
+	exit 0 ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
-	exit ;;
-    arm:riscos:*:*|arm:RISCOS:*:*)
-	echo arm-unknown-riscos
-	exit ;;
+	exit 0;;
     SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
 	echo hppa1.1-hitachi-hiuxmpp
-	exit ;;
+	exit 0;;
     Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
 	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
 	if test "`(/bin/universe) 2>/dev/null`" = att ; then
@@ -308,32 +287,25 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	else
 		echo pyramid-pyramid-bsd
 	fi
-	exit ;;
+	exit 0 ;;
     NILE*:*:*:dcosx)
 	echo pyramid-pyramid-svr4
-	exit ;;
-    DRS?6000:unix:4.0:6*)
-	echo sparc-icl-nx6
-	exit ;;
-    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
-	case `/usr/bin/uname -p` in
-	    sparc) echo sparc-icl-nx7; exit ;;
-	esac ;;
+	exit 0 ;;
     sun4H:SunOS:5.*:*)
 	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
+	exit 0 ;;
     sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
 	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
+	exit 0 ;;
     i86pc:SunOS:5.*:*)
 	echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
+	exit 0 ;;
     sun4*:SunOS:6*:*)
 	# According to config.sub, this is the proper way to canonicalize
 	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
 	# it's likely to be more like Solaris than SunOS4.
 	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
+	exit 0 ;;
     sun4*:SunOS:*:*)
 	case "`/usr/bin/arch -k`" in
 	    Series*|S4*)
@@ -342,12 +314,12 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	esac
 	# Japanese Language versions have a version number like `4.1.3-JL'.
 	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
-	exit ;;
+	exit 0 ;;
     sun3*:SunOS:*:*)
 	echo m68k-sun-sunos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     sun*:*:4.2BSD:*)
-	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	UNAME_RELEASE=`(head -1 /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
 	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
 	case "`/bin/arch`" in
 	    sun3)
@@ -357,10 +329,16 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		echo sparc-sun-sunos${UNAME_RELEASE}
 		;;
 	esac
-	exit ;;
+	exit 0 ;;
     aushp:SunOS:*:*)
 	echo sparc-auspex-sunos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
+    sparc*:NetBSD:*)
+	echo `uname -p`-unknown-netbsd${UNAME_RELEASE}
+	exit 0 ;;
+    atari*:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
     # The situation for MiNT is a little confusing.  The machine name
     # can be virtually everything (everything which is not
     # "atarist" or "atariste" at least should have a processor
@@ -371,40 +349,49 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     # be no problem.
     atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
         echo m68k-atari-mint${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
 	echo m68k-atari-mint${UNAME_RELEASE}
-        exit ;;
+        exit 0 ;;
     *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
         echo m68k-atari-mint${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
         echo m68k-milan-mint${UNAME_RELEASE}
-        exit ;;
+        exit 0 ;;
     hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
         echo m68k-hades-mint${UNAME_RELEASE}
-        exit ;;
+        exit 0 ;;
     *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
         echo m68k-unknown-mint${UNAME_RELEASE}
-        exit ;;
-    m68k:machten:*:*)
-	echo m68k-apple-machten${UNAME_RELEASE}
-	exit ;;
+        exit 0 ;;
+    sun3*:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mac68k:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mvme68k:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
+    mvme88k:OpenBSD:*:*)
+	echo m88k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
     powerpc:machten:*:*)
 	echo powerpc-apple-machten${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     RISC*:Mach:*:*)
 	echo mips-dec-mach_bsd4.3
-	exit ;;
+	exit 0 ;;
     RISC*:ULTRIX:*:*)
 	echo mips-dec-ultrix${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     VAX*:ULTRIX*:*:*)
 	echo vax-dec-ultrix${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     2020:CLIX:*:* | 2430:CLIX:*:*)
 	echo clipper-intergraph-clix${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     mips:*:*:UMIPS | mips:*:*:RISCos)
 	eval $set_cc_for_build
 	sed 's/^	//' << EOF >$dummy.c
@@ -428,33 +415,27 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	  exit (-1);
 	}
 EOF
-	$CC_FOR_BUILD -o $dummy $dummy.c &&
-	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
-	  SYSTEM_NAME=`$dummy $dummyarg` &&
-	    { echo "$SYSTEM_NAME"; exit; }
+	$CC_FOR_BUILD $dummy.c -o $dummy \
+	  && ./$dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
+	  && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
 	echo mips-mips-riscos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     Motorola:PowerMAX_OS:*:*)
 	echo powerpc-motorola-powermax
-	exit ;;
-    Motorola:*:4.3:PL8-*)
-	echo powerpc-harris-powermax
-	exit ;;
-    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
-	echo powerpc-harris-powermax
-	exit ;;
+	exit 0 ;;
     Night_Hawk:Power_UNIX:*:*)
 	echo powerpc-harris-powerunix
-	exit ;;
+	exit 0 ;;
     m88k:CX/UX:7*:*)
 	echo m88k-harris-cxux7
-	exit ;;
+	exit 0 ;;
     m88k:*:4*:R4*)
 	echo m88k-motorola-sysv4
-	exit ;;
+	exit 0 ;;
     m88k:*:3*:R3*)
 	echo m88k-motorola-sysv3
-	exit ;;
+	exit 0 ;;
     AViiON:dgux:*:*)
         # DG/UX returns AViiON for all architectures
         UNAME_PROCESSOR=`/usr/bin/uname -p`
@@ -470,29 +451,29 @@ EOF
 	else
 	    echo i586-dg-dgux${UNAME_RELEASE}
 	fi
- 	exit ;;
+ 	exit 0 ;;
     M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
 	echo m88k-dolphin-sysv3
-	exit ;;
+	exit 0 ;;
     M88*:*:R3*:*)
 	# Delta 88k system running SVR3
 	echo m88k-motorola-sysv3
-	exit ;;
+	exit 0 ;;
     XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
 	echo m88k-tektronix-sysv3
-	exit ;;
+	exit 0 ;;
     Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
 	echo m68k-tektronix-bsd
-	exit ;;
+	exit 0 ;;
     *:IRIX*:*:*)
 	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
-	exit ;;
+	exit 0 ;;
     ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
-	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
-	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+	echo romp-ibm-aix      # uname -m gives an 8 hex-code CPU id
+	exit 0 ;;              # Note that: echo "'`uname -s`'" gives 'AIX '
     i*86:AIX:*:*)
 	echo i386-ibm-aix
-	exit ;;
+	exit 0 ;;
     ia64:AIX:*:*)
 	if [ -x /usr/bin/oslevel ] ; then
 		IBM_REV=`/usr/bin/oslevel`
@@ -500,7 +481,7 @@ EOF
 		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
 	fi
 	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
-	exit ;;
+	exit 0 ;;
     *:AIX:2:3)
 	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
 		eval $set_cc_for_build
@@ -515,20 +496,17 @@ EOF
 			exit(0);
 			}
 EOF
-		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
-		then
-			echo "$SYSTEM_NAME"
-		else
-			echo rs6000-ibm-aix3.2.5
-		fi
+		$CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm -f $dummy.c $dummy && exit 0
+		rm -f $dummy.c $dummy
+		echo rs6000-ibm-aix3.2.5
 	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
 		echo rs6000-ibm-aix3.2.4
 	else
 		echo rs6000-ibm-aix3.2
 	fi
-	exit ;;
+	exit 0 ;;
     *:AIX:*:[45])
-	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | head -1 | awk '{ print $1 }'`
 	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
 		IBM_ARCH=rs6000
 	else
@@ -540,36 +518,38 @@ EOF
 		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
 	fi
 	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
-	exit ;;
+	exit 0 ;;
     *:AIX:*:*)
 	echo rs6000-ibm-aix
-	exit ;;
+	exit 0 ;;
     ibmrt:4.4BSD:*|romp-ibm:BSD:*)
 	echo romp-ibm-bsd4.4
-	exit ;;
+	exit 0 ;;
     ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
 	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
-	exit ;;                             # report: romp-ibm BSD 4.3
+	exit 0 ;;                           # report: romp-ibm BSD 4.3
     *:BOSX:*:*)
 	echo rs6000-bull-bosx
-	exit ;;
+	exit 0 ;;
     DPX/2?00:B.O.S.:*:*)
 	echo m68k-bull-sysv3
-	exit ;;
+	exit 0 ;;
     9000/[34]??:4.3bsd:1.*:*)
 	echo m68k-hp-bsd
-	exit ;;
+	exit 0 ;;
     hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
 	echo m68k-hp-bsd4.4
-	exit ;;
+	exit 0 ;;
     9000/[34678]??:HP-UX:*:*)
 	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
 	case "${UNAME_MACHINE}" in
 	    9000/31? )            HP_ARCH=m68000 ;;
 	    9000/[34]?? )         HP_ARCH=m68k ;;
 	    9000/[678][0-9][0-9])
-		if [ -x /usr/bin/getconf ]; then
-		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+              case "${HPUX_REV}" in
+                11.[0-9][0-9])
+                  if [ -x /usr/bin/getconf ]; then
+                    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
                     sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
                     case "${sc_cpu_version}" in
                       523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
@@ -578,13 +558,13 @@ EOF
                         case "${sc_kernel_bits}" in
                           32) HP_ARCH="hppa2.0n" ;;
                           64) HP_ARCH="hppa2.0w" ;;
-			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
                         esac ;;
                     esac
-		fi
-		if [ "${HP_ARCH}" = "" ]; then
-		    eval $set_cc_for_build
-		    sed 's/^              //' << EOF >$dummy.c
+                  fi ;;
+              esac
+              if [ "${HP_ARCH}" = "" ]; then
+	      eval $set_cc_for_build
+              sed 's/^              //' << EOF >$dummy.c
 
               #define _HPUX_SOURCE
               #include <stdlib.h>
@@ -617,37 +597,17 @@ EOF
                   exit (0);
               }
 EOF
-		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
-		    test -z "$HP_ARCH" && HP_ARCH=hppa
-		fi ;;
+	    (CCOPTS= $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null ) && HP_ARCH=`./$dummy`
+	    if test -z "$HP_ARCH"; then HP_ARCH=hppa; fi
+	    rm -f $dummy.c $dummy
+	fi ;;
 	esac
-	if [ ${HP_ARCH} = "hppa2.0w" ]
-	then
-	    eval $set_cc_for_build
-
-	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
-	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
-	    # generating 64-bit code.  GNU and HP use different nomenclature:
-	    #
-	    # $ CC_FOR_BUILD=cc ./config.guess
-	    # => hppa2.0w-hp-hpux11.23
-	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
-	    # => hppa64-hp-hpux11.23
-
-	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
-		grep __LP64__ >/dev/null
-	    then
-		HP_ARCH="hppa2.0w"
-	    else
-		HP_ARCH="hppa64"
-	    fi
-	fi
 	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
-	exit ;;
+	exit 0 ;;
     ia64:HP-UX:*:*)
 	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
 	echo ia64-hp-hpux${HPUX_REV}
-	exit ;;
+	exit 0 ;;
     3050*:HI-UX:*:*)
 	eval $set_cc_for_build
 	sed 's/^	//' << EOF >$dummy.c
@@ -675,213 +635,158 @@ EOF
 	  exit (0);
 	}
 EOF
-	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
-		{ echo "$SYSTEM_NAME"; exit; }
+	$CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
 	echo unknown-hitachi-hiuxwe2
-	exit ;;
+	exit 0 ;;
     9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
 	echo hppa1.1-hp-bsd
-	exit ;;
+	exit 0 ;;
     9000/8??:4.3bsd:*:*)
 	echo hppa1.0-hp-bsd
-	exit ;;
+	exit 0 ;;
     *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
 	echo hppa1.0-hp-mpeix
-	exit ;;
+	exit 0 ;;
     hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
 	echo hppa1.1-hp-osf
-	exit ;;
+	exit 0 ;;
     hp8??:OSF1:*:*)
 	echo hppa1.0-hp-osf
-	exit ;;
+	exit 0 ;;
     i*86:OSF1:*:*)
 	if [ -x /usr/sbin/sysversion ] ; then
 	    echo ${UNAME_MACHINE}-unknown-osf1mk
 	else
 	    echo ${UNAME_MACHINE}-unknown-osf1
 	fi
-	exit ;;
+	exit 0 ;;
     parisc*:Lites*:*:*)
 	echo hppa1.1-hp-lites
-	exit ;;
+	exit 0 ;;
+    hppa*:OpenBSD:*:*)
+	echo hppa-unknown-openbsd
+	exit 0 ;;
     C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
 	echo c1-convex-bsd
-        exit ;;
+        exit 0 ;;
     C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
 	if getsysinfo -f scalar_acc
 	then echo c32-convex-bsd
 	else echo c2-convex-bsd
 	fi
-        exit ;;
+        exit 0 ;;
     C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
 	echo c34-convex-bsd
-        exit ;;
+        exit 0 ;;
     C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
 	echo c38-convex-bsd
-        exit ;;
+        exit 0 ;;
     C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
 	echo c4-convex-bsd
-        exit ;;
+        exit 0 ;;
+    CRAY*X-MP:*:*:*)
+	echo xmp-cray-unicos
+        exit 0 ;;
     CRAY*Y-MP:*:*:*)
 	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
+	exit 0 ;;
     CRAY*[A-Z]90:*:*:*)
 	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
 	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
 	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
 	      -e 's/\.[^.]*$/.X/'
-	exit ;;
+	exit 0 ;;
     CRAY*TS:*:*:*)
 	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
+	exit 0 ;;
+    CRAY*T3D:*:*:*)
+	echo alpha-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit 0 ;;
     CRAY*T3E:*:*:*)
 	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
+	exit 0 ;;
     CRAY*SV1:*:*:*)
 	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
-    *:UNICOS/mp:*:*)
-	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
-	exit ;;
+	exit 0 ;;
+    CRAY-2:*:*:*)
+	echo cray2-cray-unicos
+        exit 0 ;;
     F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
 	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
         FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
         FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
         echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-        exit ;;
-    5000:UNIX_System_V:4.*:*)
-        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-        FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
-        echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-	exit ;;
+        exit 0 ;;
+    hp300:OpenBSD:*:*)
+	echo m68k-unknown-openbsd${UNAME_RELEASE}
+	exit 0 ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
 	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     sparc*:BSD/OS:*:*)
 	echo sparc-unknown-bsdi${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     *:BSD/OS:*:*)
 	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     *:FreeBSD:*:*)
 	echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
-	exit ;;
+	exit 0 ;;
+    *:OpenBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-openbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+	exit 0 ;;
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
-	exit ;;
+	exit 0 ;;
     i*:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
-	exit ;;
-    i*:windows32*:*)
-    	# uname -m includes "-pc" on this system.
-    	echo ${UNAME_MACHINE}-mingw32
-	exit ;;
+	exit 0 ;;
     i*:PW*:*)
 	echo ${UNAME_MACHINE}-pc-pw32
-	exit ;;
-    x86:Interix*:[34]*)
-	echo i586-pc-interix${UNAME_RELEASE}|sed -e 's/\..*//'
-	exit ;;
-    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
-	echo i${UNAME_MACHINE}-pc-mks
-	exit ;;
+	exit 0 ;;
     i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
 	# UNAME_MACHINE based on the output of uname instead of i386?
-	echo i586-pc-interix
-	exit ;;
+	echo i386-pc-interix
+	exit 0 ;;
     i*:UWIN*:*)
 	echo ${UNAME_MACHINE}-pc-uwin
-	exit ;;
-    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
-	echo x86_64-unknown-cygwin
-	exit ;;
+	exit 0 ;;
     p*:CYGWIN*:*)
 	echo powerpcle-unknown-cygwin
-	exit ;;
+	exit 0 ;;
     prep*:SunOS:5.*:*)
 	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
-	exit ;;
+	exit 0 ;;
     *:GNU:*:*)
-	# the GNU system
 	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
-	exit ;;
-    *:GNU/*:*:*)
-	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
-	exit ;;
+	exit 0 ;;
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
-	exit ;;
+	exit 0 ;;
     arm*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    cris:Linux:*:*)
-	echo cris-axis-linux-gnu
-	exit ;;
-    crisv32:Linux:*:*)
-	echo crisv32-axis-linux-gnu
-	exit ;;
-    frv:Linux:*:*)
-    	echo frv-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     ia64:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
-    m32r*:Linux:*:*)
-	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
+	echo ${UNAME_MACHINE}-unknown-linux
+	exit 0 ;;
     m68*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     mips:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef mips
-	#undef mipsel
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mipsel
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
-	;;
-    mips64:Linux:*:*)
-	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#undef CPU
-	#undef mips64
-	#undef mips64el
-	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mips64el
-	#else
-	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips64
-	#else
-	CPU=
-	#endif
-	#endif
-EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
-	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	case `sed -n '/^byte/s/^.*: \(.*\) endian/\1/p' < /proc/cpuinfo` in
+	  big)    echo mips-unknown-linux-gnu && exit 0 ;;
+	  little) echo mipsel-unknown-linux-gnu && exit 0 ;;
+	esac
 	;;
-    or32:Linux:*:*)
-	echo or32-unknown-linux-gnu
-	exit ;;
     ppc:Linux:*:*)
 	echo powerpc-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     ppc64:Linux:*:*)
 	echo powerpc64-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
 	  EV5)   UNAME_MACHINE=alphaev5 ;;
@@ -895,7 +800,7 @@ EOF
 	objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
 	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
 	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
-	exit ;;
+	exit 0 ;;
     parisc:Linux:*:* | hppa:Linux:*:*)
 	# Look for CPU level
 	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
@@ -903,31 +808,27 @@ EOF
 	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
 	  *)    echo hppa-unknown-linux-gnu ;;
 	esac
-	exit ;;
+	exit 0 ;;
     parisc64:Linux:*:* | hppa64:Linux:*:*)
 	echo hppa64-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     s390:Linux:*:* | s390x:Linux:*:*)
 	echo ${UNAME_MACHINE}-ibm-linux
-	exit ;;
-    sh64*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     sh*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     sparc:Linux:*:* | sparc64:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     x86_64:Linux:*:*)
 	echo x86_64-unknown-linux-gnu
-	exit ;;
+	exit 0 ;;
     i*86:Linux:*:*)
 	# The BFD linker knows what the default object file format is, so
 	# first see if it will tell us. cd to the root directory to prevent
 	# problems with other programs or directories called `ld' in the path.
-	# Set LC_ALL=C to ensure ld outputs messages in English.
-	ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
+	ld_supported_targets=`cd /; ld --help 2>&1 \
 			 | sed -ne '/supported targets:/!d
 				    s/[ 	][ 	]*/ /g
 				    s/.*supported targets: *//
@@ -939,54 +840,52 @@ EOF
 		;;
 	  a.out-i386-linux)
 		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
-		exit ;;
+		exit 0 ;;		
 	  coff-i386)
 		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
-		exit ;;
+		exit 0 ;;
 	  "")
 		# Either a pre-BFD a.out linker (linux-gnuoldld) or
 		# one that does not give us useful --help.
 		echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
-		exit ;;
+		exit 0 ;;
 	esac
 	# Determine whether the default compiler is a.out or elf
 	eval $set_cc_for_build
-	sed 's/^	//' << EOF >$dummy.c
-	#include <features.h>
-	#ifdef __ELF__
-	# ifdef __GLIBC__
-	#  if __GLIBC__ >= 2
-	LIBC=gnu
-	#  else
-	LIBC=gnulibc1
-	#  endif
-	# else
-	LIBC=gnulibc1
-	# endif
-	#else
-	#ifdef __INTEL_COMPILER
-	LIBC=gnu
-	#else
-	LIBC=gnuaout
-	#endif
-	#endif
-	#ifdef __dietlibc__
-	LIBC=dietlibc
-	#endif
+	cat >$dummy.c <<EOF
+#include <features.h>
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+#ifdef __ELF__
+# ifdef __GLIBC__
+#  if __GLIBC__ >= 2
+    printf ("%s-pc-linux-gnu\n", argv[1]);
+#  else
+    printf ("%s-pc-linux-gnulibc1\n", argv[1]);
+#  endif
+# else
+   printf ("%s-pc-linux-gnulibc1\n", argv[1]);
+# endif
+#else
+  printf ("%s-pc-linux-gnuaout\n", argv[1]);
+#endif
+  return 0;
+}
 EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
-	test x"${LIBC}" != x && {
-		echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
-		exit
-	}
-	test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
+	$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm -f $dummy.c $dummy && exit 0
+	rm -f $dummy.c $dummy
+	test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
 	;;
     i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
 	# earlier versions are messed up and put the nodename in both
 	# sysname and nodename.
 	echo i386-sequent-sysv4
-	exit ;;
+	exit 0 ;;
     i*86:UNIX_SV:4.2MP:2.*)
         # Unixware is an offshoot of SVR4, but it has its own version
         # number series starting with 2...
@@ -994,27 +893,7 @@ EOF
 	# I just have to hope.  -- rms.
         # Use sysv4.2uw... so that sysv4* matches it.
 	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
-	exit ;;
-    i*86:OS/2:*:*)
-	# If we were able to find `uname', then EMX Unix compatibility
-	# is probably installed.
-	echo ${UNAME_MACHINE}-pc-os2-emx
-	exit ;;
-    i*86:XTS-300:*:STOP)
-	echo ${UNAME_MACHINE}-unknown-stop
-	exit ;;
-    i*86:atheos:*:*)
-	echo ${UNAME_MACHINE}-unknown-atheos
-	exit ;;
-    i*86:syllable:*:*)
-	echo ${UNAME_MACHINE}-pc-syllable
-	exit ;;
-    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
-	echo i386-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
-    i*86:*DOS:*:*)
-	echo ${UNAME_MACHINE}-pc-msdosdjgpp
-	exit ;;
+	exit 0 ;;
     i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
 	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
 	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
@@ -1022,100 +901,99 @@ EOF
 	else
 		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
 	fi
-	exit ;;
-    i*86:*:5:[678]*)
-    	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	exit 0 ;;
+    i*86:*:5:[78]*)
 	case `/bin/uname -X | grep "^Machine"` in
 	    *486*)	     UNAME_MACHINE=i486 ;;
 	    *Pentium)	     UNAME_MACHINE=i586 ;;
 	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
 	esac
 	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
-	exit ;;
+	exit 0 ;;
     i*86:*:3.2:*)
 	if test -f /usr/options/cb.name; then
 		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
 		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
 	elif /bin/uname -X 2>/dev/null >/dev/null ; then
-		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
-		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
-		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+		UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
 			&& UNAME_MACHINE=i586
-		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+		(/bin/uname -X|egrep '^Machine.*Pent ?II' >/dev/null) \
 			&& UNAME_MACHINE=i686
-		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+		(/bin/uname -X|egrep '^Machine.*Pentium Pro' >/dev/null) \
 			&& UNAME_MACHINE=i686
 		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
 	else
 		echo ${UNAME_MACHINE}-pc-sysv32
 	fi
-	exit ;;
+	exit 0 ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit 0 ;;
     pc:*:*:*)
 	# Left here for compatibility:
         # uname -m prints for DJGPP always 'pc', but it prints nothing about
         # the processor, so we play safe by assuming i386.
 	echo i386-pc-msdosdjgpp
-        exit ;;
+        exit 0 ;;
     Intel:Mach:3*:*)
 	echo i386-pc-mach3
-	exit ;;
+	exit 0 ;;
     paragon:*:*:*)
 	echo i860-intel-osf1
-	exit ;;
+	exit 0 ;;
     i860:*:4.*:*) # i860-SVR4
 	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
 	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
 	else # Add other i860-SVR4 vendors below as they are discovered.
 	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
 	fi
-	exit ;;
+	exit 0 ;;
     mini*:CTIX:SYS*5:*)
 	# "miniframe"
 	echo m68010-convergent-sysv
-	exit ;;
-    mc68k:UNIX:SYSTEM5:3.51m)
-	echo m68k-convergent-sysv
-	exit ;;
-    M680?0:D-NIX:5.3:*)
-	echo m68k-diab-dnix
-	exit ;;
-    M68*:*:R3V[5678]*:*)
-	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
-    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	exit 0 ;;
+    M68*:*:R3V[567]*:*)
+	test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
+    3[34]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 4850:*:4.0:3.0)
 	OS_REL=''
 	test -r /etc/.relid \
 	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
 	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	  && echo i486-ncr-sysv4.3${OS_REL} && exit 0
 	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
-	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+	  && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;;
     3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
         /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-          && { echo i486-ncr-sysv4; exit; } ;;
+          && echo i486-ncr-sysv4 && exit 0 ;;
     m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
 	echo m68k-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     mc68030:UNIX_System_V:4.*:*)
 	echo m68k-atari-sysv4
-	exit ;;
+	exit 0 ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
+	echo i386-unknown-lynxos${UNAME_RELEASE}
+	exit 0 ;;
     TSUNAMI:LynxOS:2.*:*)
 	echo sparc-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     rs6000:LynxOS:2.*:*)
 	echo rs6000-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
 	echo powerpc-unknown-lynxos${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     SM[BE]S:UNIX_SV:*:*)
 	echo mips-dde-sysv${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     RM*:ReliantUNIX-*:*:*)
 	echo mips-sni-sysv4
-	exit ;;
+	exit 0 ;;
     RM*:SINIX-*:*:*)
 	echo mips-sni-sysv4
-	exit ;;
+	exit 0 ;;
     *:SINIX-*:*:*)
 	if uname -p 2>/dev/null >/dev/null ; then
 		UNAME_MACHINE=`(uname -p) 2>/dev/null`
@@ -1123,99 +1001,82 @@ EOF
 	else
 		echo ns32k-sni-sysv
 	fi
-	exit ;;
+	exit 0 ;;
     PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
                       # says <Richard.M.Bartel@ccMail.Census.GOV>
         echo i586-unisys-sysv4
-        exit ;;
+        exit 0 ;;
     *:UNIX_System_V:4*:FTX*)
 	# From Gerald Hewes <hewes@openmarket.com>.
 	# How about differentiating between stratus architectures? -djm
 	echo hppa1.1-stratus-sysv4
-	exit ;;
+	exit 0 ;;
     *:*:*:FTX*)
 	# From seanf@swdc.stratus.com.
 	echo i860-stratus-sysv4
-	exit ;;
-    i*86:VOS:*:*)
-	# From Paul.Green@stratus.com.
-	echo ${UNAME_MACHINE}-stratus-vos
-	exit ;;
+	exit 0 ;;
     *:VOS:*:*)
 	# From Paul.Green@stratus.com.
 	echo hppa1.1-stratus-vos
-	exit ;;
+	exit 0 ;;
     mc68*:A/UX:*:*)
 	echo m68k-apple-aux${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     news*:NEWS-OS:6*:*)
 	echo mips-sony-newsos6
-	exit ;;
+	exit 0 ;;
     R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
 	if [ -d /usr/nec ]; then
 	        echo mips-nec-sysv${UNAME_RELEASE}
 	else
 	        echo mips-unknown-sysv${UNAME_RELEASE}
 	fi
-        exit ;;
+        exit 0 ;;
     BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
 	echo powerpc-be-beos
-	exit ;;
+	exit 0 ;;
     BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
 	echo powerpc-apple-beos
-	exit ;;
+	exit 0 ;;
     BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
 	echo i586-pc-beos
-	exit ;;
+	exit 0 ;;
     SX-4:SUPER-UX:*:*)
 	echo sx4-nec-superux${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     SX-5:SUPER-UX:*:*)
 	echo sx5-nec-superux${UNAME_RELEASE}
-	exit ;;
-    SX-6:SUPER-UX:*:*)
-	echo sx6-nec-superux${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     Power*:Rhapsody:*:*)
 	echo powerpc-apple-rhapsody${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     *:Rhapsody:*:*)
 	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     *:Darwin:*:*)
-	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
-	case $UNAME_PROCESSOR in
-	    *86) UNAME_PROCESSOR=i686 ;;
-	    unknown) UNAME_PROCESSOR=powerpc ;;
-	esac
-	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
-	exit ;;
+	echo `uname -p`-apple-darwin${UNAME_RELEASE}
+	exit 0 ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
-	UNAME_PROCESSOR=`uname -p`
-	if test "$UNAME_PROCESSOR" = "x86"; then
-		UNAME_PROCESSOR=i386
+	if test "${UNAME_MACHINE}" = "x86pc"; then
 		UNAME_MACHINE=pc
 	fi
-	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
-	exit ;;
+	echo `uname -p`-${UNAME_MACHINE}-nto-qnx
+	exit 0 ;;
     *:QNX:*:4*)
 	echo i386-pc-qnx
-	exit ;;
-    NSE-?:NONSTOP_KERNEL:*:*)
-	echo nse-tandem-nsk${UNAME_RELEASE}
-	exit ;;
-    NSR-?:NONSTOP_KERNEL:*:*)
+	exit 0 ;;
+    NSR-[KW]:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     *:NonStop-UX:*:*)
 	echo mips-compaq-nonstopux
-	exit ;;
+	exit 0 ;;
     BS2000:POSIX*:*:*)
 	echo bs2000-siemens-sysv
-	exit ;;
+	exit 0 ;;
     DS/*:UNIX_System_V:*:*)
 	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
-	exit ;;
+	exit 0 ;;
     *:Plan9:*:*)
 	# "uname -m" is not consistent, so use $cputype instead. 386
 	# is converted to i386 for consistency with other x86
@@ -1226,44 +1087,36 @@ EOF
 	    UNAME_MACHINE="$cputype"
 	fi
 	echo ${UNAME_MACHINE}-unknown-plan9
-	exit ;;
+	exit 0 ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit 0 ;;
     *:TOPS-10:*:*)
 	echo pdp10-unknown-tops10
-	exit ;;
+	exit 0 ;;
     *:TENEX:*:*)
 	echo pdp10-unknown-tenex
-	exit ;;
+	exit 0 ;;
     KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
 	echo pdp10-dec-tops20
-	exit ;;
+	exit 0 ;;
     XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
 	echo pdp10-xkl-tops20
-	exit ;;
+	exit 0 ;;
     *:TOPS-20:*:*)
 	echo pdp10-unknown-tops20
-	exit ;;
+	exit 0 ;;
     *:ITS:*:*)
 	echo pdp10-unknown-its
-	exit ;;
-    SEI:*:*:SEIUX)
-        echo mips-sei-seiux${UNAME_RELEASE}
-	exit ;;
-    *:DragonFly:*:*)
-	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
-	exit ;;
-    *:*VMS:*:*)
-    	UNAME_MACHINE=`(uname -p) 2>/dev/null`
-	case "${UNAME_MACHINE}" in
-	    A*) echo alpha-dec-vms ; exit ;;
-	    I*) echo ia64-dec-vms ; exit ;;
-	    V*) echo vax-dec-vms ; exit ;;
-	esac ;;
-    *:XENIX:*:SysV)
-	echo i386-pc-xenix
-	exit ;;
-    i*86:skyos:*:*)
-	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
-	exit ;;
+	exit 0 ;;
+    i*86:XTS-300:*:STOP)
+	echo ${UNAME_MACHINE}-unknown-stop
+	exit 0 ;;
+    i*86:atheos:*:*)
+	echo ${UNAME_MACHINE}-unknown-atheos
+	exit 0 ;;
 esac
 
 #echo '(No uname command or uname output not recognized.)' 1>&2
@@ -1295,7 +1148,7 @@ main ()
 #endif
 
 #if defined (__arm) && defined (__acorn) && defined (__unix)
-  printf ("arm-acorn-riscix\n"); exit (0);
+  printf ("arm-acorn-riscix"); exit (0);
 #endif
 
 #if defined (hp300) && !defined (hpux)
@@ -1384,12 +1237,12 @@ main ()
 }
 EOF
 
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
-	{ echo "$SYSTEM_NAME"; exit; }
+$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy && rm -f $dummy.c $dummy && exit 0
+rm -f $dummy.c $dummy
 
 # Apollos put the system type in the environment.
 
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; }
 
 # Convex versions that predate uname can use getsysinfo(1)
 
@@ -1398,22 +1251,22 @@ then
     case `getsysinfo -f cpu_type` in
     c1*)
 	echo c1-convex-bsd
-	exit ;;
+	exit 0 ;;
     c2*)
 	if getsysinfo -f scalar_acc
 	then echo c32-convex-bsd
 	else echo c2-convex-bsd
 	fi
-	exit ;;
+	exit 0 ;;
     c34*)
 	echo c34-convex-bsd
-	exit ;;
+	exit 0 ;;
     c38*)
 	echo c38-convex-bsd
-	exit ;;
+	exit 0 ;;
     c4*)
 	echo c4-convex-bsd
-	exit ;;
+	exit 0 ;;
     esac
 fi
 
@@ -1424,9 +1277,7 @@ This script, last modified $timestamp, has failed to recognize
 the operating system you are using. It is advised that you
 download the most up to date version of the config scripts from
 
-  http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.guess
-and
-  http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.sub
+    ftp://ftp.gnu.org/pub/gnu/config/
 
 If the version you run ($0) is already up to date, please
 send the following data and any information you think might be
diff --git a/config.sub b/config.sub
index 1c366df..7cee3d6 100755
--- a/config.sub
+++ b/config.sub
@@ -1,9 +1,9 @@
 #! /bin/sh
 # Configuration validation subroutine script.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+#   2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
-timestamp='2005-07-08'
+timestamp='2003-06-18'
 
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
@@ -21,15 +21,14 @@ timestamp='2005-07-08'
 #
 # 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.
-#
+# Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 
-
 # Please send patches to <config-patches@gnu.org>.  Submit a context
 # diff and a properly formatted ChangeLog entry.
 #
@@ -71,7 +70,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
@@ -84,11 +83,11 @@ Try \`$me --help' for more information."
 while test $# -gt 0 ; do
   case $1 in
     --time-stamp | --time* | -t )
-       echo "$timestamp" ; exit ;;
+       echo "$timestamp" ; exit 0 ;;
     --version | -v )
-       echo "$version" ; exit ;;
+       echo "$version" ; exit 0 ;;
     --help | --h* | -h )
-       echo "$usage"; exit ;;
+       echo "$usage"; exit 0 ;;
     -- )     # Stop option processing
        shift; break ;;
     - )	# Use stdin as input.
@@ -100,7 +99,7 @@ while test $# -gt 0 ; do
     *local*)
        # First pass through any local machine types.
        echo $1
-       exit ;;
+       exit 0;;
 
     * )
        break ;;
@@ -119,8 +118,7 @@ esac
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-dietlibc | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | \
-  kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*)
+  nto-qnx* | linux-gnu* | freebsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
@@ -146,7 +144,7 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray)
+	-apple | -axis)
 		os=
 		basic_machine=$1
 		;;
@@ -230,16 +228,14 @@ case $basic_machine in
 	| a29k \
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
-	| am33_2.0 \
 	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \
-	| bfin \
 	| c4x | clipper \
 	| d10v | d30v | dlx | dsp16xx \
 	| fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| i370 | i860 | i960 | ia64 \
-	| ip2k | iq2000 \
-	| m32r | m32rle | m68000 | m68k | m88k | maxq | mcore \
+	| ip2k \
+	| m32r | m68000 | m68k | m88k | mcore \
 	| mips | mipsbe | mipseb | mipsel | mipsle \
 	| mips16 \
 	| mips64 | mips64el \
@@ -248,37 +244,31 @@ case $basic_machine in
 	| mips64vr4100 | mips64vr4100el \
 	| mips64vr4300 | mips64vr4300el \
 	| mips64vr5000 | mips64vr5000el \
-	| mips64vr5900 | mips64vr5900el \
 	| mipsisa32 | mipsisa32el \
 	| mipsisa32r2 | mipsisa32r2el \
 	| mipsisa64 | mipsisa64el \
-	| mipsisa64r2 | mipsisa64r2el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
 	| mipstx39 | mipstx39el \
 	| mn10200 | mn10300 \
-	| ms1 \
 	| msp430 \
 	| ns16k | ns32k \
-	| or32 \
+	| openrisc | or32 \
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
 	| pyramid \
-	| sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \
+	| s390 | s390x \
+	| sh | sh[1234] | sh[23]e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
-	| sparc | sparc64 | sparc64b | sparc86x | sparclet | sparclite \
-	| sparcv8 | sparcv9 | sparcv9b \
+	| sparc | sparc64 | sparc86x | sparclet | sparclite | sparcv9 | sparcv9b \
 	| strongarm \
 	| tahoe | thumb | tic4x | tic80 | tron \
 	| v850 | v850e \
 	| we32k \
-	| x86 | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| x86 | xscale | xstormy16 | xtensa \
 	| z8k)
 		basic_machine=$basic_machine-unknown
 		;;
-	m32c)
-		basic_machine=$basic_machine-unknown
-		;;
 	m6811 | m68hc11 | m6812 | m68hc12)
 		# Motorola 68HC11/12.
 		basic_machine=$basic_machine-unknown
@@ -306,19 +296,19 @@ case $basic_machine in
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* \
-	| bfin-* | bs2000-* \
+	| bs2000-* \
 	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
-	| clipper-* | craynv-* | cydra-* \
+	| clipper-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
 	| elxsi-* \
 	| f30[01]-* | f700-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
-	| ip2k-* | iq2000-* \
-	| m32r-* | m32rle-* \
+	| ip2k-* \
+	| m32r-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* \
+	| m88110-* | m88k-* | mcore-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
@@ -327,40 +317,34 @@ case $basic_machine in
 	| mips64vr4100-* | mips64vr4100el-* \
 	| mips64vr4300-* | mips64vr4300el-* \
 	| mips64vr5000-* | mips64vr5000el-* \
-	| mips64vr5900-* | mips64vr5900el-* \
 	| mipsisa32-* | mipsisa32el-* \
 	| mipsisa32r2-* | mipsisa32r2el-* \
 	| mipsisa64-* | mipsisa64el-* \
-	| mipsisa64r2-* | mipsisa64r2el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
 	| mipstx39-* | mipstx39el-* \
-	| mmix-* \
-	| ms1-* \
 	| msp430-* \
-	| none-* | np1-* | ns16k-* | ns32k-* \
+	| none-* | np1-* | nv1-* | ns16k-* | ns32k-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
 	| pyramid-* \
 	| romp-* | rs6000-* \
-	| sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | shbe-* \
+	| s390-* | s390x-* \
+	| sh-* | sh[1234]-* | sh[23]e-* | sh[34]eb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
-	| sparc-* | sparc64-* | sparc64b-* | sparc86x-* | sparclet-* \
-	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | strongarm-* | sv1-* | sx?-* \
+	| sparc-* | sparc64-* | sparc86x-* | sparclet-* | sparclite-* \
+	| sparcv9-* | sparcv9b-* | strongarm-* | sv1-* | sx?-* \
 	| tahoe-* | thumb-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
 	| tron-* \
 	| v850-* | v850e-* | vax-* \
 	| we32k-* \
-	| x86-* | x86_64-* | xps100-* | xscale-* | xscalee[bl]-* \
-	| xstormy16-* | xtensa-* \
+	| x86-* | x86_64-* | xps100-* | xscale-* | xstormy16-* \
+	| xtensa-* \
 	| ymp-* \
 	| z8k-*)
 		;;
-	m32c-*)
-		;;
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
 	386bsd)
@@ -377,9 +361,6 @@ case $basic_machine in
 		basic_machine=a29k-amd
 		os=-udi
 		;;
-    	abacus)
-		basic_machine=abacus-unknown
-		;;
 	adobe68k)
 		basic_machine=m68010-adobe
 		os=-scout
@@ -397,9 +378,6 @@ case $basic_machine in
 	amd64)
 		basic_machine=x86_64-pc
 		;;
-	amd64-*)
-		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
 	amdahl)
 		basic_machine=580-amdahl
 		os=-sysv
@@ -459,27 +437,12 @@ case $basic_machine in
 		basic_machine=j90-cray
 		os=-unicos
 		;;
-	craynv)
-		basic_machine=craynv-cray
-		os=-unicosmp
-		;;
-	cr16c)
-		basic_machine=cr16c-unknown
-		os=-elf
-		;;
 	crds | unos)
 		basic_machine=m68k-crds
 		;;
-	crisv32 | crisv32-* | etraxfs*)
-		basic_machine=crisv32-axis
-		;;
 	cris | cris-* | etrax*)
 		basic_machine=cris-axis
 		;;
-	crx)
-		basic_machine=crx-unknown
-		os=-elf
-		;;
 	da30 | da30-*)
 		basic_machine=m68k-da30
 		;;
@@ -502,10 +465,6 @@ case $basic_machine in
 		basic_machine=m88k-motorola
 		os=-sysv3
 		;;
-	djgpp)
-		basic_machine=i586-pc
-		os=-msdosdjgpp
-		;;
 	dpx20 | dpx20-*)
 		basic_machine=rs6000-bull
 		os=-bosx
@@ -684,6 +643,10 @@ case $basic_machine in
 	mips3*)
 		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
 		;;
+	mmix*)
+		basic_machine=mmix-knuth
+		os=-mmixware
+		;;
 	monitor)
 		basic_machine=m68k-rom68k
 		os=-coff
@@ -764,6 +727,10 @@ case $basic_machine in
 	np1)
 		basic_machine=np1-gould
 		;;
+	nv1)
+		basic_machine=nv1-cray
+		os=-unicosmp
+		;;
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
@@ -771,12 +738,9 @@ case $basic_machine in
 		basic_machine=hppa1.1-oki
 		os=-proelf
 		;;
-	openrisc | openrisc-*)
+	or32 | or32-*)
 		basic_machine=or32-unknown
-		;;
-	os400)
-		basic_machine=powerpc-ibm
-		os=-os400
+		os=-coff
 		;;
 	OSE68000 | ose68000)
 		basic_machine=m68000-ericsson
@@ -869,12 +833,6 @@ case $basic_machine in
 	rtpc | rtpc-*)
 		basic_machine=romp-ibm
 		;;
-	s390 | s390-*)
-		basic_machine=s390-ibm
-		;;
-	s390x | s390x-*)
-		basic_machine=s390x-ibm
-		;;
 	sa29200)
 		basic_machine=a29k-amd
 		os=-udi
@@ -998,10 +956,6 @@ case $basic_machine in
 	tower | tower-32)
 		basic_machine=m68k-ncr
 		;;
-	tpf)
-		basic_machine=s390x-ibm
-		os=-tpf
-		;;
 	udi29k)
 		basic_machine=a29k-amd
 		os=-udi
@@ -1045,10 +999,6 @@ case $basic_machine in
 		basic_machine=hppa1.1-winbond
 		os=-proelf
 		;;
-	xbox)
-		basic_machine=i686-pc
-		os=-mingw32
-		;;
 	xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
@@ -1079,9 +1029,6 @@ case $basic_machine in
 	romp)
 		basic_machine=romp-ibm
 		;;
-	mmix)
-		basic_machine=mmix-knuth
-		;;
 	rs6000)
 		basic_machine=rs6000-ibm
 		;;
@@ -1098,10 +1045,13 @@ case $basic_machine in
 	we32k)
 		basic_machine=we32k-att
 		;;
-	sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
+	sh3 | sh4 | sh[34]eb | sh[1234]le | sh[23]ele)
 		basic_machine=sh-unknown
 		;;
-	sparc | sparcv8 | sparcv9 | sparcv9b)
+	sh64)
+		basic_machine=sh64-unknown
+		;;
+	sparc | sparcv9 | sparcv9b)
 		basic_machine=sparc-sun
 		;;
 	cydra)
@@ -1174,21 +1124,19 @@ case $os in
 	      | -aos* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
-	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* | -openbsd* \
-	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
-	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -hiux* | -386bsd* | -netbsd* | -openbsd* | -freebsd* | -riscix* \
+	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -linux-uclibc* | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
-	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku*)
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1206,15 +1154,12 @@ case $os in
 		os=`echo $os | sed -e 's|nto|nto-qnx|'`
 		;;
 	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
-	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* \
 	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
 		;;
 	-mac*)
 		os=`echo $os | sed -e 's|mac|macos|'`
 		;;
-	-linux-dietlibc)
-		os=-linux-dietlibc
-		;;
 	-linux*)
 		os=`echo $os | sed -e 's|linux|linux-gnu|'`
 		;;
@@ -1227,9 +1172,6 @@ case $os in
 	-opened*)
 		os=-openedition
 		;;
-        -os400*)
-		os=-os400
-		;;
 	-wince*)
 		os=-wince
 		;;
@@ -1251,9 +1193,6 @@ case $os in
 	-atheos*)
 		os=-atheos
 		;;
-	-syllable*)
-		os=-syllable
-		;;
 	-386bsd)
 		os=-bsd
 		;;
@@ -1276,9 +1215,6 @@ case $os in
 	-sinix*)
 		os=-sysv4
 		;;
-        -tpf*)
-		os=-tpf
-		;;
 	-triton*)
 		os=-sysv3
 		;;
@@ -1315,9 +1251,6 @@ case $os in
 	-kaos*)
 		os=-kaos
 		;;
-	-zvmoe)
-		os=-zvmoe
-		;;
 	-none)
 		;;
 	*)
@@ -1349,9 +1282,9 @@ case $basic_machine in
 	arm*-semi)
 		os=-aout
 		;;
-    c4x-* | tic4x-*)
-        os=-coff
-        ;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
 	# This must come before the *-dec entry.
 	pdp10-*)
 		os=-tops20
@@ -1395,15 +1328,9 @@ case $basic_machine in
 	*-be)
 		os=-beos
 		;;
-	*-haiku)
-		os=-haiku
-		;;
 	*-ibm)
 		os=-aix
 		;;
-    	*-knuth)
-		os=-mmixware
-		;;
 	*-wec)
 		os=-proelf
 		;;
@@ -1536,15 +1463,9 @@ case $basic_machine in
 			-mvs* | -opened*)
 				vendor=ibm
 				;;
-			-os400*)
-				vendor=ibm
-				;;
 			-ptx*)
 				vendor=sequent
 				;;
-			-tpf*)
-				vendor=ibm
-				;;
 			-vxsim* | -vxworks* | -windiss*)
 				vendor=wrs
 				;;
@@ -1569,7 +1490,7 @@ case $basic_machine in
 esac
 
 echo $basic_machine$os
-exit
+exit 0
 
 # Local variables:
 # eval: (add-hook 'write-file-hooks 'time-stamp)
diff --git a/configure b/configure
index 789e02c..f269567 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.59 for google-perftools 0.90.
+# Generated by GNU Autoconf 2.59 for google-perftools 0.91.
 #
 # Report bugs to <opensource@google.com>.
 #
@@ -423,8 +423,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='google-perftools'
 PACKAGE_TARNAME='google-perftools'
-PACKAGE_VERSION='0.90'
-PACKAGE_STRING='google-perftools 0.90'
+PACKAGE_VERSION='0.91'
+PACKAGE_STRING='google-perftools 0.91'
 PACKAGE_BUGREPORT='opensource@google.com'
 
 ac_unique_file="README"
@@ -954,7 +954,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures google-perftools 0.90 to adapt to many kinds of systems.
+\`configure' configures google-perftools 0.91 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1020,7 +1020,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of google-perftools 0.90:";;
+     short | recursive ) echo "Configuration of google-perftools 0.91:";;
    esac
   cat <<\_ACEOF
 
@@ -1161,7 +1161,7 @@ fi
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
-google-perftools configure 0.90
+google-perftools configure 0.91
 generated by GNU Autoconf 2.59
 
 Copyright (C) 2003 Free Software Foundation, Inc.
@@ -1175,7 +1175,7 @@ cat >&5 <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by google-perftools $as_me 0.90, which was
+It was created by google-perftools $as_me 0.91, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   $ $0 $@
@@ -1821,7 +1821,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='google-perftools'
- VERSION='0.90'
+ VERSION='0.91'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -23759,7 +23759,7 @@ _ASBOX
 } >&5
 cat >&5 <<_CSEOF
 
-This file was extended by google-perftools $as_me 0.90, which was
+This file was extended by google-perftools $as_me 0.91, which was
 generated by GNU Autoconf 2.59.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -23822,7 +23822,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-google-perftools config.status 0.90
+google-perftools config.status 0.91
 configured by $0, generated by GNU Autoconf 2.59,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.ac b/configure.ac
index 20aa4ad..2debd56 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@
 # make sure we're interpreted by some minimal autoconf
 AC_PREREQ(2.57)
 
-AC_INIT(google-perftools, 0.90, opensource@google.com)
+AC_INIT(google-perftools, 0.91, opensource@google.com)
 # The argument here is just something that should be in the current directory
 # (for sanity checking)
 AC_CONFIG_SRCDIR(README)
diff --git a/src/base/sysinfo.cc b/src/base/sysinfo.cc
index 77de531..f31c7e9 100644
--- a/src/base/sysinfo.cc
+++ b/src/base/sysinfo.cc
@@ -36,8 +36,12 @@
 #include <fcntl.h>    // for open()
 #include <unistd.h>   // for read()
 #include "base/sysinfo.h"
+#include "base/commandlineflags.h"
 #include "base/logging.h"
 
+DEFINE_string(procfs_prefix, "", "string to prepend to filenames opened "
+              "via OpenProcFile");
+
 // open/read/close can set errno, which may be illegal at this
 // time, so prefer making the syscalls directly if we can.
 #ifdef HAVE_SYSCALL_H
@@ -85,15 +89,39 @@ const char* GetenvBeforeMain(const char* name) {
   return NULL;                   // env var never found
 }
 
+static void ConstructFilename(const char* spec, pid_t pid,
+                              char* buf, int buf_size) {
+  // We are duplicating the code here for performance.
+  // The second call requires constructing a new string object
+  // and then destructing it again, which is a waste if
+  // the string ends up being the same as the passed in cstring
+  // anyway.
+  if (FLAGS_procfs_prefix.empty()) {
+    CHECK_LT(snprintf(buf, buf_size,
+                      spec,
+                      pid?:getpid()), buf_size);
+  } else {
+    CHECK_LT(snprintf(buf, buf_size,
+                      (FLAGS_procfs_prefix + spec).c_str(),
+                      pid?:getpid()), buf_size);
+  }
+}
+
 ProcMapsIterator::ProcMapsIterator(pid_t pid) {
-  Init(pid, NULL);
+  Init(pid, NULL, false);
 }
 
 ProcMapsIterator::ProcMapsIterator(pid_t pid, char *buffer) {
-  Init(pid, buffer);
+  Init(pid, buffer, false);
+}
+
+ProcMapsIterator::ProcMapsIterator(pid_t pid, char *buffer,
+                                   bool use_maps_backing) {
+  Init(pid, buffer, use_maps_backing);
 }
 
-void ProcMapsIterator::Init(pid_t pid, char *buffer) {
+void ProcMapsIterator::Init(pid_t pid, char *buffer, bool use_maps_backing) {
+  using_maps_backing_ = use_maps_backing;
   ibuf_ = buffer;
   dynamic_ibuf_ = NULL;
   if (!ibuf_) {
@@ -108,13 +136,44 @@ void ProcMapsIterator::Init(pid_t pid, char *buffer) {
   ebuf_ = ibuf_ + kBufSize - 1;
   nextline_ = ibuf_;
 
-  char filename[64];
-  snprintf(filename, sizeof(filename), "/proc/%d/maps", pid?:getpid());
+  // If we are in a stack fault handler, we can't
+  // allocate a big buffer here.  But for testing,
+  // we need a big buffer.  So we guess.
+  char* alloced_filename_buffer = NULL;
+
+  // 64 is the size this used to be.
+  // we can get away with less to make
+  // up for all the other stack space we are using.
+  // We need 21 + number of digits in a pid
+  // to handle /proc/<pid>/maps_backing.
+  char stack_filename_buffer[32];
+  char *filename = stack_filename_buffer;
+  int filename_size = sizeof(stack_filename_buffer);
+
+  // Best assumption, if we have set procfs_prefix, we
+  // are running a test case and can afford to allocate
+  // a bunch of memory.
+  if (!FLAGS_procfs_prefix.empty()) {
+    filename_size = PATH_MAX;
+    alloced_filename_buffer = new char[filename_size];
+    filename = alloced_filename_buffer;
+    CHECK(filename != NULL);
+  }
+
+  if (use_maps_backing) {
+    ConstructFilename("/proc/%d/maps_backing", pid,
+                      filename, filename_size);
+  } else {
+    ConstructFilename("/proc/%d/maps", pid,
+                      filename, filename_size);
+  }
+
   // No error logging since this can be called from the crash dump
   // handler at awkward moments. Users should call Valid() before
   // using.
   fd_ = open(filename, O_RDONLY);
-}  
+  delete[] alloced_filename_buffer;
+}
 
 ProcMapsIterator::~ProcMapsIterator() {
   delete[] dynamic_ibuf_;
@@ -122,7 +181,18 @@ ProcMapsIterator::~ProcMapsIterator() {
 }
 
 bool ProcMapsIterator::Next(uint64 *start, uint64 *end, char **flags,
-                       uint64 *offset, int64 *inode, char **filename) {
+                            uint64 *offset, int64 *inode, char **filename) {
+  return NextExt(start, end, flags, offset, inode, filename, NULL, NULL,
+                 NULL, NULL);
+}
+
+// This has too many arguments.  It should really be building
+// a map object and returning it.  The problem is that this is called
+// when the memory allocator state is undefined, hence the arguments.
+bool ProcMapsIterator::NextExt(uint64 *start, uint64 *end, char **flags,
+                               uint64 *offset, int64 *inode, char **filename,
+                               uint64 *file_mapping, uint64 *file_pages,
+                               uint64 *anon_mapping, uint64 *anon_pages) {
 
   do {
     // Advance to the start of the next line
@@ -169,6 +239,37 @@ bool ProcMapsIterator::Next(uint64 *start, uint64 *end, char **flags,
 
     if (flags) *flags = flags_;
     if (filename) *filename = stext_ + filename_offset;
+
+    if (using_maps_backing_) {
+      // Extract and parse physical page backing info.
+      char *backing_ptr = stext_ + filename_offset +
+          strlen(stext_+filename_offset);
+
+      // find the second '('
+      int paren_count = 0;
+      while (--backing_ptr > stext_) {
+        if (*backing_ptr == '(') {
+          ++paren_count;
+          if (paren_count >= 2) {
+            uint64 tmp_file_mapping;
+            uint64 tmp_file_pages;
+            uint64 tmp_anon_mapping;
+            uint64 tmp_anon_pages;
+
+            sscanf(backing_ptr+1, "F %llx %lld) (A %llx %lld)",
+                   file_mapping?:&tmp_file_mapping,
+                   file_pages?:&tmp_file_pages,
+                   anon_mapping?:&tmp_anon_mapping,
+                   anon_pages?:&tmp_anon_pages);
+            // null terminate the file name (there is a space
+            // before the first (.
+            backing_ptr[-1] = 0;
+            break;
+          }
+        }
+      }
+    }
+
     return true;
   } while (etext_ > ibuf_);
 
diff --git a/src/base/sysinfo.h b/src/base/sysinfo.h
index ae99cb7..173ea6b 100644
--- a/src/base/sysinfo.h
+++ b/src/base/sysinfo.h
@@ -64,8 +64,14 @@ class ProcMapsIterator {
 
   // Create an iterator with specified storage (for use in signal
   // handler). "buffer" should point to an area of size kBufSize
+  // buffer can be NULL in which case a bufer will be allocated.
   ProcMapsIterator(pid_t pid, char *buffer);
 
+  // Iterate through maps_backing instead of maps if use_maps_backing
+  // is true.  Otherwise the same as above.  buffer can be NULL and
+  // it will allocate a buffer itself.
+  ProcMapsIterator(pid_t pid, char *buffer, bool use_maps_backing);
+
   // Returns true if the iterator successfully initialized;
   bool Valid() const { return fd_ != -1; }
 
@@ -91,11 +97,16 @@ class ProcMapsIterator {
   bool Next(uint64 *start, uint64 *end, char **flags,
             uint64 *offset, int64 *inode, char **filename);
 
+  bool NextExt(uint64 *start, uint64 *end, char **flags,
+               uint64 *offset, int64 *inode, char **filename,
+               uint64 *file_mapping, uint64 *file_pages,
+               uint64 *anon_mapping, uint64 *anon_pages);
+
   ~ProcMapsIterator();
 
  private:
 
-  void Init(pid_t pid, char *buffer);
+  void Init(pid_t pid, char *buffer, bool use_maps_backing);
 
   char *ibuf_;        // input buffer
   char *stext_;       // start of text
@@ -105,6 +116,7 @@ class ProcMapsIterator {
   int   fd_;          // filehandle on /proc/*/maps
   char flags_[10];
   char* dynamic_ibuf_; // dynamically-allocated ibuf_
+  bool using_maps_backing_; // true if we are looking at maps_backing instead of maps.
 
 };
 
diff --git a/src/stacktrace_libunwind-inl.h b/src/stacktrace_libunwind-inl.h
index 4b0e102..20112d9 100644
--- a/src/stacktrace_libunwind-inl.h
+++ b/src/stacktrace_libunwind-inl.h
@@ -65,7 +65,7 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   }
 
   unw_getcontext(&uc);
-  ret = unw_init_local(&cursor, &uc);
+  int ret = unw_init_local(&cursor, &uc);
   assert(ret >= 0);
   skip_count++;         // Do not include the "GetStackTrace" frame
 
diff --git a/src/tests/ptmalloc/malloc-machine.h b/src/tests/ptmalloc/malloc-machine.h
index 44c7802..f32ca35 100644
--- a/src/tests/ptmalloc/malloc-machine.h
+++ b/src/tests/ptmalloc/malloc-machine.h
@@ -31,7 +31,7 @@ PERFORMANCE OF THIS SOFTWARE.
 
 /* Use fast inline spinlocks with gcc.  */
 #if (defined __i386__ || defined __x86_64__) && defined __GNUC__ && \
-    !defined USE_NO_SPINLOCKS && 0 /*!!*/
+    !defined USE_NO_SPINLOCKS
 
 #include <time.h>
 #include <sched.h>
author	csilvers <csilvers@6b5cf1ce-ec42-a296-1ba9-69fdba395a50>	2007-04-19 00:53:22 +0000
committer	csilvers <csilvers@6b5cf1ce-ec42-a296-1ba9-69fdba395a50>	2007-04-19 00:53:22 +0000
commit	6878379d5bab87c787cdd3487b5620a9c8adf376 (patch)
tree	a91105cdac99c5cf7deeec27af31a9a175727f38
parent	74ad5d57ec08abace386befc6c3c695d85f44d1a (diff)
download	gperftools-6878379d5bab87c787cdd3487b5620a9c8adf376.tar.gz