1 files changed, 54 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.threads/schedlock-new-thread.c b/gdb/testsuite/gdb.threads/schedlock-new-thread.c
new file mode 100644
index 00000000000..aba32f3c19d
--- /dev/null
+++ b/gdb/testsuite/gdb.threads/schedlock-new-thread.c
@@ -0,0 +1,54 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2021-2022 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <pthread.h>
+#include <assert.h>
+#include <unistd.h>
+
+static void *
+thread_func (void *arg)
+{
+#if !SCHEDLOCK
+  while (1)
+    sleep (1);
+#endif
+
+  return NULL;
+}
+
+int
+main (void)
+{
+  pthread_t thread;
+  int ret;
+
+  ret = pthread_create (&thread, NULL, thread_func, NULL); /* set break 1 here */
+  assert (ret == 0);
+
+#if SCHEDLOCK
+  /* When testing with schedlock enabled, the new thread won't run, so
+     we can't join it, as that would hang forever.  Instead, sleep for
+     a bit, enough that if the spawned thread is scheduled, it hits
+     the thread_func breakpoint before the main thread reaches the
+     "return 0" line below.  */
+  sleep (3);
+#else
+  pthread_join (thread, NULL);
+#endif
+
+  return 0; /* set break 2 here */
+}