1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-cleanup2.c b/sysdeps/pthread/tst-cleanup2.c
new file mode 100644
index 0000000000..5936c242fc
--- /dev/null
+++ b/sysdeps/pthread/tst-cleanup2.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Bao Duong <bduong@progress.com>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+static sigjmp_buf jmpbuf;
+
+static void
+sig_handler (int signo)
+{
+  siglongjmp (jmpbuf, 1);
+}
+
+static int
+do_test (void)
+{
+  char *p = NULL;
+  /* gcc can overwrite the success written value by scheduling instructions
+     around sprintf.  It is allowed to do this since according to C99 the first
+     argument of sprintf is a character array and NULL is not a valid character
+     array.  Mark the return value as volatile so that it gets reloaded on
+     return.  */
+  volatile int ret = 0;
+
+  if (signal (SIGSEGV, &sig_handler) == SIG_ERR)
+    {
+      perror ("installing SIGSEGV handler");
+      return 1;
+    }
+
+  puts ("Attempting to sprintf to null ptr");
+  if (setjmp (jmpbuf))
+    {
+      puts ("Exiting main...");
+      return ret;
+    }
+
+  sprintf (p, "This should segv\n");
+
+  return 1;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"