1 files changed, 75 insertions, 0 deletions
diff --git a/gdb/testsuite/lib/gdb_watchdog.h b/gdb/testsuite/lib/gdb_watchdog.h
new file mode 100644
index 0000000..15d63e7
--- /dev/null
+++ b/gdb/testsuite/lib/gdb_watchdog.h
@@ -0,0 +1,75 @@
+/* This file is part of GDB, the GNU debugger.
+
+   Copyright 2025 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/>.  */
+
+/* Set a watchdog that aborts the testcase after a timeout.  */
+
+#ifndef GDB_WATCHDOG_H
+#define GDB_WATCHDOG_H
+
+/* Forward declaration to make sure the definitions have the right
+   prototype, at least in C.  */
+static void gdb_watchdog (unsigned int seconds);
+
+static const char _gdb_watchdog_msg[]
+  = "gdb_watchdog: timeout expired - aborting test\n";
+
+#ifdef _WIN32
+#include <windows.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+static VOID CALLBACK
+_gdb_watchdog_timer_routine (PVOID lpParam, BOOLEAN TimerOrWaitFired)
+{
+  fputs (_gdb_watchdog_msg, stderr);
+  abort ();
+}
+
+static void
+gdb_watchdog (unsigned int seconds)
+{
+  HANDLE timer;
+
+  if (!CreateTimerQueueTimer (&timer, NULL,
+			      _gdb_watchdog_timer_routine, NULL,
+			      seconds * 1000, 0, 0))
+    abort ();
+}
+
+#else /* POSIX systems */
+
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+
+static void
+_gdb_sigalrm_handler (int signo)
+{
+  write (2, _gdb_watchdog_msg, sizeof (_gdb_watchdog_msg) - 1);
+  abort ();
+}
+
+static void
+gdb_watchdog (unsigned int seconds)
+{
+  signal (SIGALRM, _gdb_sigalrm_handler);
+  alarm (seconds);
+}
+
+#endif
+
+#endif /* GDB_WATCHDOG_H */