From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9447 invoked by alias); 14 Dec 2004 00:47:52 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 9406 invoked by uid 48); 14 Dec 2004 00:47:45 -0000 Date: Tue, 14 Dec 2004 00:47:00 -0000 From: "lars dot sonchocky-helldorf at hamburg dot de" To: gcc-bugs@gcc.gnu.org Message-ID: <20041214004742.18972.lars.sonchocky-helldorf@hamburg.de> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug bootstrap/18972] New: Regression: bootstrap failure of gcc-4.0-20041212 on OpenDarwin 7.2.1/x86 (i686-apple-darwin7.2.1): Bootstrap comparison failure X-Bugzilla-Reason: CC X-SW-Source: 2004-12/txt/msg01909.txt.bz2 List-Id: The system: =========== uname -a Darwin localhost 7.2.1 Darwin Kernel Version 7.2.1: Wed Jul 14 03:00:02 PDT 2004; root:tmp/xnu-7.2.1-1-root.obj/RELEASE_I386 x86 i386 gcc -v Reading specs from /usr/libexec/gcc/darwin/i386/3.3/specs Thread model: posix gcc version 3.3 20030304 (Apple Computer, Inc. build 1495) Prerequisites: ============== # link libmx to libSystem # this is necessary because some libraries are missing # from OpenDarwin, in this case the -lmx argument results in: # /usr/bin/ld: can't locate file for: -lmx # see http://www.opendarwin.org/bugzilla/show_bug.cgi?id=2194 # # note: this is just enough to bootstrap the compiler, # some floating point compiliations might fail sudo ln -s /usr/lib/libSystem.B.dylib /usr/lib/libmx.dylib # install new cctools # according to: http://gcc.gnu.org/ml/gcc-patches/2004-08/msg00104.html # and: http://gcc.gnu.org/ml/gcc-patches/2004-10/msg01222.html # newer cctools are needed to build HEAD of gcc # Since building Apples cctools is somewhat complicated and # won't work on (Open)Darwin/x86 better use OpenDarwin cctools (odcctools) # see: http://www.opendarwin.org/projects/odcctools/ # and: http://www.opendarwin.org/projects/odcctools/usingodcctools.html # and: http://www.opendarwin.org/pipermail/odcctools/2004-October/000033.html ftp http://www.opendarwin.org/downloads/odcctools-20041018.tar.bz2 tar -jxf odcctools-20041018.tar.bz2 mkdir odcctools-build cd odcctools-build/ ../odcctools-20041018/configure --prefix=/usr make sudo make install cd .. Bootstrapped like: ================== # bootstrap the compiler # note: those STAGE1_CFLAGS are needed to avoid # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14780 ftp ftp://gcc.gnu.org/pub/gcc/snapshots/4.0-20041212/gcc-4.0-20041212.tar.bz2 openssl md5 gcc-4.0-20041212.tar.bz2 tar -jxf gcc-4.0-20041212.tar.bz2 cd gcc-build/ rm -rf * ../gcc-4.0-20041212/configure --prefix=/tmp/gcc make bootstrap STAGE1_CFLAGS="-no-cpp-precomp -Wa,-force_cpusubtype_ALL" Result of attempted bootstrap: ============================== Comparing stage2 and stage3 of the compiler rm -f .bad_compare case "gnucompare" in *compare | *compare-lean ) stage=2 ;; * ) stage=`echo gnucompare | sed -e 's,^[a-z]*compare\([0-9][0-9]*\).*,\1,'` ;; esac; \ for dir in . cp java objc build; do \ if [ "`echo $dir/*.o`" != "$dir/*.o" ] ; then \ for file in $dir/*.o; do \ case "gnucompare" in \ slowcompare* ) \ tail +16c ./$file > tmp-foo1; \ tail +16c stage$stage/$file > tmp-foo2 \ && (cmp tmp-foo1 tmp-foo2 > /dev/null 2>&1 || echo $file differs >> .bad_compare) || true; \ ;; \ fastcompare* ) \ cmp $file stage$stage/$file 16 16 > /dev/null 2>&1; \ test $? -eq 1 && echo $file differs >> .bad_compare || true; \ ;; \ gnucompare* ) \ cmp --ignore-initial=16 $file stage$stage/$file > /dev/null 2>&1; \ test $? -eq 1 && echo $file differs >> .bad_compare || true; \ ;; \ esac ; \ done; \ else true; fi; \ done rm -f tmp-foo* case "gnucompare" in *compare | *compare-lean ) stage=2 ;; * ) stage=`echo gnucompare | sed -e 's,^[a-z]*compare\([0-9][0-9]*\).*,\1,'` ;; esac; \ if [ -f .bad_compare ]; then \ echo "Bootstrap comparison failure!"; \ cat .bad_compare; \ exit 1; \ else \ case "gnucompare" in \ *-lean ) rm -rf stage$stage ;; \ *) ;; \ esac; true; \ fi Bootstrap comparison failure! ./reload.o differs make[1]: *** [gnucompare] Error 1 make: *** [bootstrap] Error 2 This is a regression since bootstrap worked for 4.0.0 20041205. See: http://gcc.gnu.org/ml/gcc-testresults/2004-12/msg00276.html Steps taken to isolate the bug ============================== the only occurrences of reload.o during bootstrapping were: gcc -c -no-cpp-precomp -Wa,-force_cpusubtype_ALL -DENABLE_CHECKING - DENABLE_ASSERT_CHECKING -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing- prototypes -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-4.0-20041212/gcc -I../../gcc-4.0- 20041212/gcc/. -I../../gcc-4.0-20041212/gcc/../include -I./../intl -I../../gcc-4.0-20041212/gcc/../ libcpp/include ../../gcc-4.0-20041212/gcc/reload.c -o reload.o stage1/xgcc -Bstage1/ -B/tmp/gcc/i686-apple-darwin7.2.1/bin/ -c -O2 -g -fomit-frame-pointer - DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long- long -Wno-variadic-macros -Wold-style-definition -Werror -fno-common -DHAVE_CONFIG_H -I. - I. -I../../gcc-4.0-20041212/gcc -I../../gcc-4.0-20041212/gcc/. -I../../gcc-4.0-20041212/gcc/../ include -I./../intl -I../../gcc-4.0-20041212/gcc/../libcpp/include ../../gcc-4.0-20041212/gcc/ reload.c -o reload.o stage2/xgcc -Bstage2/ -B/tmp/gcc/i686-apple-darwin7.2.1/bin/ -c -O2 -g -fomit-frame-pointer - DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long- long -Wno-variadic-macros -Wold-style-definition -Werror -fno-common -DHAVE_CONFIG_H -I. - I. -I../../gcc-4.0-20041212/gcc -I../../gcc-4.0-20041212/gcc/. -I../../gcc-4.0-20041212/gcc/../ include -I./../intl -I../../gcc-4.0-20041212/gcc/../libcpp/include ../../gcc-4.0-20041212/gcc/ reload.c -o reload.o whereby the last both commands differ only in the compiler that's used, at first stage1/xgcc and later stage2/xgcc. Those commands were the ones which results differed in the comparison, so I reissued them (in the gcc subdirectory) with a '-save-temps' option added: localhost:~/GCC/FSF/gcc-build/gcc lars$ stage1/xgcc -Bstage1/ -B/tmp/gcc/i686-apple- darwin7.2.1/bin/ -c -O2 -g -fomit-frame-pointer -DIN_GCC -W -Wall -Wwrite-strings -Wstrict- prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wold-style- definition -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-4.0-20041212/gcc -I../../ gcc-4.0-20041212/gcc/. -I../../gcc-4.0-20041212/gcc/../include -I./../intl -I../../gcc-4.0- 20041212/gcc/../libcpp/include -save-temps ../../gcc-4.0-20041212/gcc/reload.c -o reload.o localhost:~/GCC/FSF/gcc-build/gcc lars$ mv reload.i stage2-reload.i localhost:~/GCC/FSF/gcc-build/gcc lars$ mv reload.s stage2-reload.s localhost:~/GCC/FSF/gcc-build/gcc lars$ stage2/xgcc -Bstage2/ -B/tmp/gcc/i686-apple- darwin7.2.1/bin/ -c -O2 -g -fomit-frame-pointer -DIN_GCC -W -Wall -Wwrite-strings -Wstrict- prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wold-style- definition -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-4.0-20041212/gcc -I../../ gcc-4.0-20041212/gcc/. -I../../gcc-4.0-20041212/gcc/../include -I./../intl -I../../gcc-4.0- 20041212/gcc/../libcpp/include -save-temps ../../gcc-4.0-20041212/gcc/reload.c -o reload.o localhost:~/GCC/FSF/gcc-build/gcc lars$ mv reload.i stage3-reload.i localhost:~/GCC/FSF/gcc-build/gcc lars$ mv reload.s stage3-reload.s I found out that the .i files and .s files don't differ, so I attached them only once regards, Lars -- Summary: Regression: bootstrap failure of gcc-4.0-20041212 on OpenDarwin 7.2.1/x86 (i686-apple-darwin7.2.1): Bootstrap comparison failure Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: lars dot sonchocky-helldorf at hamburg dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-apple-darwin7.2.1 GCC host triplet: i686-apple-darwin7.2.1 GCC target triplet: i686-apple-darwin7.2.1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18972