https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63564
--- Comment #2 from Kostya Serebryany <kcc at gcc dot gnu.org> --- We don't intercept sem_post/sem_wait and don't instrument glibc where they are implemented. Sadly, the same applies to quite a few other glibc functions. In future we may have fully instrumented glibc, but in the meantime we need to add more interceptors. Patches are welcome, see https://code.google.com/p/address-sanitizer/wiki/HowToContribute Most likely sanitizer_common/sanitizer_common_interceptors.inc will need to be modified.
