tsan/asan: support pthread_setname_np to set thread names

llvm-svn: 193602

1 files changed, 32 insertions, 0 deletions

diff --git a/compiler-rt/lib/tsan/lit_tests/thread_name2.cc b/compiler-rt/lib/tsan/lit_tests/thread_name2.cc
new file mode 100644
index 00000000000..8c5cb741f61
--- /dev/null
+++ b/compiler-rt/lib/tsan/lit_tests/thread_name2.cc
@@ -0,0 +1,32 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int Global;
+
+void *Thread1(void *x) {
+  sleep(1);
+  Global++;
+  return 0;
+}
+
+void *Thread2(void *x) {
+  pthread_setname_np(pthread_self(), "foobar2");
+  Global--;
+  return 0;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], 0, Thread1, 0);
+  pthread_create(&t[1], 0, Thread2, 0);
+  pthread_setname_np(t[0], "foobar1");
+  pthread_join(t[0], NULL);
+  pthread_join(t[1], NULL);
+}
+
+// CHECK: WARNING: ThreadSanitizer: data race
+// CHECK:   Thread T1 'foobar1'
+// CHECK:   Thread T2 'foobar2'
+