MSan, FreeBSD few tests fixes

Summary:
pthread_getattr_np_deadlock support
pthread_getname_np unsupported

Reviewers: krytarowski, vitalybuka

Reviewed By: vitalybuka

Subscribers: eugenis, srhines, krytarowski, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D44085

llvm-svn: 327678

compiler-rt/test/msan/pthread_getattr_np_deadlock.cc

@@ -1,14 +1,23 @@
 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && %run %t
 
 // Regression test for a deadlock in pthread_getattr_np
-// UNSUPPORTED: freebsd
 
 #include <assert.h>
 #include <pthread.h>
+#if defined(__FreeBSD__)
+#include <pthread_np.h>
+#endif
 
 void *ThreadFn(void *) {
   pthread_attr_t attr;
+#if defined(__FreeBSD__)
+  // On FreeBSD it needs to allocate attr underlying memory
+  int res = pthread_attr_init(&attr);
+  assert(!res);
+  res = pthread_attr_get_np(pthread_self(), &attr);
+#else
   int res = pthread_getattr_np(pthread_self(), &attr);
+#endif
   assert(!res);
   return 0;
 }

compiler-rt/test/msan/pthread_getname_np.cc

@@ -1,5 +1,7 @@
 // RUN: %clangxx_msan -std=c++11 -O0 %s -o %t && %run %t
-// UNSUPPORTED: android, netbsd
+// The main goal is getting the pthread name back and
+// FreeBSD based do not support this feature
+// UNSUPPORTED: android, netbsd, freebsd
 
 // Regression test for a deadlock in pthread_getattr_np