Hi!
Back when I've added the EH support for tsan (aka TSAN_FUNC_EXIT), we didn't
have the barrier_wait hack to make tsan threads reliable, so I didn't commit
a testcase.
This one fails with that patch reverted and succeeds with the current trunk,
bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
2015-03-18 Jakub Jelinek <ja...@redhat.com>
PR sanitizer/64265
* g++.dg/tsan/pr64265.C: New test.
--- gcc/testsuite/g++.dg/tsan/pr64265.C.jj 2015-03-18 17:47:28.871772124
+0100
+++ gcc/testsuite/g++.dg/tsan/pr64265.C 2015-03-18 18:00:39.342922371 +0100
@@ -0,0 +1,54 @@
+// PR sanitizer/64265
+// { dg-shouldfail "tsan" }
+// { dg-additional-options "-fno-omit-frame-pointer -ldl" }
+
+#include <pthread.h>
+#include "tsan_barrier.h"
+
+static pthread_barrier_t barrier;
+int v;
+
+__attribute__((noinline, noclone)) int
+foo (int x)
+{
+ if (x < 99)
+ throw x;
+ barrier_wait (&barrier);
+ v++;
+ return x;
+}
+
+__attribute__((noinline, noclone)) void
+bar (void)
+{
+ for (int i = 0; i < 100; i++)
+ try
+ {
+ foo (i);
+ }
+ catch (int)
+ {
+ }
+}
+
+__attribute__((noinline, noclone)) void *
+tf (void *)
+{
+ bar ();
+ return NULL;
+}
+
+int
+main ()
+{
+ pthread_t th;
+ barrier_init (&barrier, 2);
+ if (pthread_create (&th, NULL, tf, NULL))
+ return 0;
+ v++;
+ barrier_wait (&barrier);
+ pthread_join (th, NULL);
+ return 0;
+}
+
+// { dg-output "WARNING: ThreadSanitizer: data race.*#2 _?(tf|_Z2tfPv)" }
Jakub
