1 files changed, 64 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.threads/process-exit-status-is-leader-exit-status.c b/gdb/testsuite/gdb.threads/process-exit-status-is-leader-exit-status.c
new file mode 100644
index 00000000000..c27c266ef28
--- /dev/null
+++ b/gdb/testsuite/gdb.threads/process-exit-status-is-leader-exit-status.c
@@ -0,0 +1,64 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 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 <unistd.h>
+#include <sys/syscall.h>
+
+#define NUM_THREADS 32
+
+pthread_barrier_t barrier;
+
+static void
+do_exit (int exitcode)
+{
+  /* Synchronize all threads up to here so that they all exit at
+     roughly the same time.  */
+  pthread_barrier_wait (&barrier);
+
+  /* All threads exit with SYS_exit, even the main thread, to avoid
+     exiting with a group-exit syscall, as that syscall changes the
+     exit status of all still-alive threads, thus potentially masking
+     a bug.  */
+  syscall (SYS_exit, exitcode);
+}
+
+static void *
+start (void *arg)
+{
+  int thread_return_value = *(int *) arg;
+
+  do_exit (thread_return_value);
+}
+
+int
+main(void)
+{
+  pthread_t threads[NUM_THREADS];
+  int thread_return_val[NUM_THREADS];
+  int i;
+
+  pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1);
+
+  for (i = 0; i < NUM_THREADS; ++i)
+    {
+      thread_return_val[i] = i + 2;
+      pthread_create (&threads[i], NULL, start, &thread_return_val[i]);
+    }
+
+  do_exit (1);
+}