tsan: add missing interceptor for embed symbolizer



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204124 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: better addr->object hashmap
still experimental



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204126 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: support up to 1<<20 mutexes in standalone deadlock detector



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204127 91177308-0d34-0410-b5e6-96231b3b80d8
Move Android ucontext.h out of third_party.

Google is re-licensing this code under the standard dual license of
compiler-rt.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@204128 91177308-0d34-0410-b5e6-96231b3b80d8