http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61130
Bug ID: 61130 Summary: 4.9 branch (r210278) bootstrap failure Product: gcc Version: 4.9.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: sanitizer Assignee: unassigned at gcc dot gnu.org Reporter: sezeroz at gmail dot com CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org $ ../gcc49.r210278/configure --enable-checking=yes --enable-languages=c,c++ --enable-lto --enable-shared --enable-threads --with-local-prefix=/usr --prefix=/home/myname/opt/gcc490 --program-suffix=49 --bindir=/home/myname/bin --disable-nls --disable-multilib [...] $ make -j2 bootstrap [...] libtool: compile: /home/myname/gcc49.build/./gcc/xgcc -shared-libgcc -B/home/myname/gcc49.build/./gcc -nostdinc++ -L/home/myname/gcc49.build/i686-pc-linux-gnu/libstdc++-v3/src -L/home/myname/gcc49.build/i686-pc-linux-gnu/libstdc++-v3/src/.libs -L/home/myname/gcc49.build/i686-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -B/home/myname/opt/gcc490/i686-pc-linux-gnu/bin/ -B/home/myname/opt/gcc490/i686-pc-linux-gnu/lib/ -isystem /home/myname/opt/gcc490/i686-pc-linux-gnu/include -isystem /home/myname/opt/gcc490/i686-pc-linux-gnu/sys-include -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I. -I../../../../gcc49.r210278/libsanitizer/ubsan -I.. -I ../../../../gcc49.r210278/libsanitizer -I ../../../../gcc49.r210278/libsanitizer/include -Wall -W -Wno-unused-parameter -Wwrite-strings -pedantic -Wno-long-long -fPIC -fno-builtin -fno-exceptions -fno-rtti -fomit-frame-pointer -funwind-tables -fvisibility=hidden -Wno-variadic-macros -I../../libstdc++-v3/include -I../../libstdc++-v3/include/i686-pc-linux-gnu -I../../../../gcc49.r210278/libsanitizer/../libstdc++-v3/libsupc++ -g -O2 -D_GNU_SOURCE -MT ubsan_handlers.lo -MD -MP -MF .deps/ubsan_handlers.Tpo -c ../../../../gcc49.r210278/libsanitizer/ubsan/ubsan_handlers.cc -fPIC -DPIC -o .libs/ubsan_handlers.o In file included from ../../../../gcc49.r210278/libsanitizer/ubsan/ubsan_handlers.cc:13:0: ../../../../gcc49.r210278/libsanitizer/ubsan/ubsan_diag.h: In function 'void handleTypeMismatchImpl(__ubsan::TypeMismatchData*, __ubsan::ValueHandle, __ubsan::Location)': ../../../../gcc49.r210278/libsanitizer/ubsan/ubsan_diag.h:192:72: warning: 'Loc.__ubsan::Location::MemoryLoc' may be used uninitialized in this function [-Wmaybe-uninitialized] : Loc(Loc), Level(Level), Message(Message), NumArgs(0), NumRanges(0) {} ^ ../../../../gcc49.r210278/libsanitizer/ubsan/ubsan_handlers.cc:29:12: note: 'Loc.__ubsan::Location::MemoryLoc' was declared here Location Loc = Data->Loc.acquire(); ^ Host bootstrap compiler: $ gcc -v Host bootstrap compiler: $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/home/myname/b1/../opt/gcc480/libexec/gcc/i686-pc-linux-gnu/4.8.3/lto-wrapper Target: i686-pc-linux-gnu Configured with: ../gcc48.r210266/configure --enable-checking=yes --enable-languages=c,c++ --enable-lto --enable-shared --enable-threads --with-local-prefix=/usr --prefix=/home/myname/opt/gcc480 --program-suffix=48 --bindir=/home/myname/bin --disable-nls --disable-multilib Thread model: posix gcc version 4.8.3 20140509 (prerelease) (GCC) The host i686-Linux using an old fedora9.