https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82614
--- Comment #5 from Marco Castelluccio <mcastelluccio at mozilla dot com> --- (In reply to Martin Liška from comment #4) > (In reply to Marco Castelluccio from comment #3) > > > Thanks for the report Marco. Looks it comes from Firefox, am I right? > > > > Yes, that's correct. Actually, from a build of the JS shell. > > > > > Which version of GCC have you been using? > > > > The build was done with "gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 > > 20160609". > > > > We were also able to reproduce the crash with a gcda generated normally, > > without __gcov_dump. > > I see, not the GCC 5.x is not longer supported. Anyway, please paste > backtrace from gcov when the segfaults happens. I'm having a hard time installing debugging symbols here, I might have to build GCC from scratch. If you already have a debug build of GCC 6 lurking around, you could try if you could reproduce the crash yourself. > I did quite some fixes to gcov that are included in GCC 7.x branch. Can you > please test a new release? We are testing with GCC 6 now, and will try with GCC 7 later on.
