1 files changed, 27 insertions, 0 deletions
diff --git a/test/tsan/signal_write.cc b/test/tsan/signal_write.cc
new file mode 100644
index 0000000000000..626d87a7acc7b
--- /dev/null
+++ b/test/tsan/signal_write.cc
@@ -0,0 +1,27 @@
+// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+static void handler(int, siginfo_t*, void*) {
+  const char *str = "HELLO FROM SIGNAL\n";
+  write(2, str, strlen(str));
+}
+
+int main() {
+  struct sigaction act = {};
+  act.sa_sigaction = &handler;
+  sigaction(SIGPROF, &act, 0);
+  kill(getpid(), SIGPROF);
+  sleep(1);
+  fprintf(stderr, "DONE\n");
+  return 0;
+}
+
+// CHECK-NOT: WARNING: ThreadSanitizer
+// CHECK: HELLO FROM SIGNAL
+// CHECK: DONE
+