1 files changed, 83 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.base/fork-running-state.c b/gdb/testsuite/gdb.base/fork-running-state.c
new file mode 100644
index 00000000000..c7103fdd146
--- /dev/null
+++ b/gdb/testsuite/gdb.base/fork-running-state.c
@@ -0,0 +1,83 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2015-2016 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 <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+int save_parent;
+
+/* The fork child.  Just runs forever.  */
+
+static int
+fork_child (void)
+{
+  while (1)
+    {
+      sleep (1);
+
+      /* Exit if GDB kills the parent.  */
+      if (getppid () != save_parent)
+	break;
+      if (kill (getppid (), 0) != 0)
+	break;
+    }
+
+  return 0;
+}
+
+/* The fork parent.  Just runs forever waiting for the child to
+   exit.  */
+
+static int
+fork_parent (void)
+{
+  if (wait (NULL) == -1)
+    {
+      perror ("wait");
+      return 1;
+    }
+
+  return 0;
+}
+
+int
+main (void)
+{
+  pid_t pid;
+
+  save_parent = getpid ();
+
+  /* Don't run forever.  */
+  alarm (180);
+
+  /* The parent and child should basically run forever without
+     tripping on any debug event.  We want to check that GDB updates
+     the parent and child running states correctly right after the
+     fork.  */
+  pid = fork ();
+  if (pid > 0)
+    return fork_parent ();
+  else if (pid == 0)
+    return fork_child ();
+  else
+    {
+      perror ("fork");
+      return 1;
+    }
+}