1 files changed, 66 insertions, 0 deletions
diff --git a/sim/testsuite/sim/cris/c/pipe4.c b/sim/testsuite/sim/cris/c/pipe4.c
new file mode 100644
index 00000000000..1cb309f9dc8
--- /dev/null
+++ b/sim/testsuite/sim/cris/c/pipe4.c
@@ -0,0 +1,66 @@
+/* Check that TRT happens for pipe corner cases.
+#notarget: cris*-*-elf
+*/
+#include <stddef.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <limits.h>
+
+void err (const char *s)
+{
+  perror (s);
+  abort ();
+}
+
+int main (void)
+{
+  int pip[2];
+  char c;
+  int pipemax;
+
+  if (pipe (pip) != 0)
+    err ("pipe");
+
+#ifdef PIPE_MAX
+  pipemax = PIPE_MAX;
+#else
+  pipemax = fpathconf (pip[1], _PC_PIPE_BUF);
+#endif
+
+  if (pipemax <= 0)
+    {
+      fprintf (stderr, "Bad pipemax %d\n", pipemax);
+      abort ();
+    }
+
+  /* Writing to wrong end of pipe.  */
+  if (write (pip[0], "argh", 1) != -1
+      || errno != EBADF)
+    err ("write pipe");
+
+  errno = 0;
+
+  /* Reading from wrong end of pipe.  */
+  if (read (pip[1], &c, 1) != -1
+      || errno != EBADF)
+    err ("write pipe");
+
+  errno = 0;
+
+  if (close (pip[0]) != 0)
+    err ("close");
+
+  if (signal (SIGPIPE, SIG_IGN) != SIG_DFL)
+    err ("signal");
+
+  /* Writing to pipe with closed read end.  */
+  if (write (pip[1], "argh", 1) != -1
+      || errno != EPIPE)
+    err ("write closed");
+
+  printf ("pass\n");
+  exit (0);
+}