[Sanitizers] Intercept __tls_get_addr() and shmctl() on FreeBSD
Differential Revision: http://reviews.llvm.org/D6384


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@222757 91177308-0d34-0410-b5e6-96231b3b80d8