> Hi Jan, > > >> This breaks bootstrap with go. > >> > >> ../../gcc/go/gofrontend/go-diagnostics.cc: In function 'std::string > >> expand_message(const char*, va_list)': > >> ../../gcc/go/gofrontend/go-diagnostics.cc:110:61: error: '<anonymous>' may > >> be used uninitialized [-Werror=maybe-uninitialized] > >> 110 | "memory allocation failed in vasprintf"); > >> | ^ > > > > Well, this may be simply a false positive (except that the warning is > > clearly mislocalted and cryptic) I was bootstrapping with go just few > > minutes ago, so I wonder what configure flags you use? > > I'm seeing the same on both i386-pc-solaris2.11 and > sparc-sun-solaris2.11, so I don't think there are special configure > flags involved.
When I configure with ../configure --enable-languages=go my build eventually finishes fine on curren trunk: /aux/hubicka/trunk-git/build-go/./gcc/gccgo -B/aux/hubicka/trunk-git/build-go/./gcc/ -B/usr/local/x86_64-pc-linux-gnu/bin/ -B/usr/local/x86_64-pc-linux-gnu/lib/ -isystem /usr/local/x86_64-pc-linux-gnu/include -isystem /usr/local/x86_64-pc-linux-gnu/sys-include -g -O2 -I ../x86_64-pc-linux-gnu/libgo -static-libstdc++ -static-libgcc -L ../x86_64-pc-linux-gnu/libgo -L ../x86_64-pc-linux-gnu/libgo/.libs -o cgo ../../gotools/../libgo/go/cmd/cgo/ast.go ../../gotools/../libgo/go/cmd/cgo/doc.go ../../gotools/../libgo/go/cmd/cgo/gcc.go ../../gotools/../libgo/go/cmd/cgo/godefs.go ../../gotools/../libgo/go/cmd/cgo/main.go ../../gotools/../libgo/go/cmd/cgo/out.go ../../gotools/../libgo/go/cmd/cgo/util.go zdefaultcc.go ../x86_64-pc-linux-gnu/libgo/libgotool.a make[2]: Leaving directory '/aux/hubicka/trunk-git/build-go/gotools' make[1]: Leaving directory '/aux/hubicka/trunk-git/build-go' On Debian SLES machines. Having preprocessed go-diagnostics.cc and .uninit1 dump would probably help. These are often false positives, but I saw similar warnings caused by wrong EAF_UNUSED flag discovery which led to init code being optimized out before inlining, so I would like to look into the dumps and figure out if that is uninit acting funny or there is some real problem. Honza > > Rainer > > -- > ----------------------------------------------------------------------------- > Rainer Orth, Center for Biotechnology, Bielefeld University
