tsan: don't use pipe2 in tests

MacOS buildbots failed:
stress.cpp:57:7: error: use of undeclared identifier 'pipe2'
https://green.lab.llvm.org/green//job/clang-stage1-RA/24209/consoleFull#-3468768778254eaf0-7326-4999-85b0-388101f2d404

Fix the test to not use pipe2.

Differential Revision: https://reviews.llvm.org/D110423

diff --git a/compiler-rt/test/tsan/stress.cpp b/compiler-rt/test/tsan/stress.cpp
index 0565c676160b54c26f64a34f09fb046f8aa29987..d678395fd8dfd1d2b18a5a030dc807359328bb99 100644 (file)
--- a/compiler-rt/test/tsan/stress.cpp
+++ b/compiler-rt/test/tsan/stress.cpp
@@ -54,8 +54,12 @@ void *Thread(void *x) {
 
 int main() {
   ANNOTATE_BENIGN_RACE(stop);
-  if (pipe2(fds, O_NONBLOCK))
-    exit((perror("pipe2"), 1));
+  if (pipe(fds))
+    exit((perror("pipe"), 1));
+  if (fcntl(fds[0], F_SETFL, O_NONBLOCK))
+    exit((perror("fcntl"), 1));
+  if (fcntl(fds[1], F_SETFL, O_NONBLOCK))
+    exit((perror("fcntl"), 1));
   const int kActions = 9;
   const int kMultiplier = 4;
   pthread_t t[kActions * kMultiplier];