Bug 56308

Summary: GCC 4.8 segfaults when building GCC 4.7
Product: gcc Reporter: Cosimo Cecchi <cosimoc>
Component: cAssignee: Not yet assigned to anyone <unassigned>
Status: RESOLVED INVALID    
Severity: normal CC: jakub
Priority: P3    
Version: 4.8.0   
Target Milestone: ---   
Host: Target:
Build: Known to work:
Known to fail: Last reconfirmed:

Description Cosimo Cecchi 2013-02-13 18:00:16 UTC 
I'm trying to build an Yocto base system (shipping GCC 4.7.2) on my Fedora Rawhide system, which currently ships GCC 4.8.0.
GCC 4.8.0 will fail with an internal compiler error while attempting that.
Please let mw know if you need further information.

Some info:

$ gcc -v
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.0/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-isl=/builddir/build/BUILD/gcc-4.8.0-20130211/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.0-20130211/obj-x86_64-redhat-linux/cloog-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.0 20130211 (Red Hat 4.8.0-0.11) (GCC)

Log of the failure:

| /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work/x86_64-gnomeos-linux/gcc-cross-initial-4.7.2-r13/gcc-4.7.2/build.x86_64-linux.x86_64-gnomeos-linux/./gcc/xgcc -B/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work/x86_64-gnomeos-linux/gcc-cross-initial-4.7.2-r13/gcc-4.7.2/build.x86_64-linux.x86_64-gnomeos-linux/./gcc/ -m64 -isystem/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/sysroots/qemux86-64/usr/include -B/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/sysroots/x86_64-linux/usr/x86_64-gnomeos-linux/bin/ -B/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/sysroots/x86_64-linux/usr/x86_64-gnomeos-linux/lib/ -isystem /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/sysroots/x86_64-linux/usr/x86_64-gnomeos-linux/include -isystem /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/sysroots/x86_64-linux/usr/x86_64-gnomeos-linux/sys-include --sysroot=/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work/x86_64-gnomeos-linux/gcc-cross-initial-4.7.2-r13/gcc-4.7.2/build.x86_64-linux.x86_64-gnomeos-linux/tmpsysroot   -g -Os -O2  -g -Os -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fpic -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -Dinhibit_libc  -fpic -I. -I. -I../.././gcc -I/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc -I/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/. -I/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/../gcc -I/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/../include  -DHAVE_CC_TLS  -DUSE_TLS -o _trampoline.o -MT _trampoline.o -MD -MP -MF _trampoline.dep -DL_trampoline -c /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS
| /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/libgcc2.c: In function '__cmpti2':
| /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/libgcc2.c:1200:1: internal compiler error: Segmentation fault
| Please submit a full bug report,
| with preprocessed source if appropriate.
| See <http://gcc.gnu.org/bugs.html> for instructions.
| make[1]: *** [_cmpdi2.o] Error 1
| make[1]: *** Waiting for unfinished jobs....
| /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/libgcc2.c: In function '__ucmpti2':
| /home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work-shared/gcc-4.7.2-r13/gcc-4.7.2/libgcc/libgcc2.c:1219:1: internal compiler error: Segmentation fault
| Please submit a full bug report,
| with preprocessed source if appropriate.
| See <http://gcc.gnu.org/bugs.html> for instructions.
| make[1]: *** [_ucmpdi2.o] Error 1
| make[1]: Leaving directory `/home/cosimoc/Sources/ostree/build/ostbuild/build-yocto-x86_64/tmp-eglibc/work/x86_64-gnomeos-linux/gcc-cross-initial-4.7.2-r13/gcc-4.7.2/build.x86_64-linux.x86_64-gnomeos-linux/x86_64-gnomeos-linux/libgcc'
| make: *** [all-target-libgcc] Error 2
| ERROR: oe_runmake failed
Comment 1 Jakub Jelinek 2013-02-13 18:14:34 UTC 
If it is 4.7.2 release, as opposed to newer snapshot from the 4.7 branch,
you need the http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191605 fix.
This will be included in 4.7.3.  Or build with -fno-aggressive-loop-optimizations.