2004-05-13 Andrew Cagney <cagney@redhat.com>

* gdb.base/signull.exp, gdb.base/signull.c: New files.
	* gdb.base/gdb1476.c, gdb.base/gdb1476.exp: Delete files.

gdb/testsuite/gdb.base/signull.c

@@ -0,0 +1,68 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 1996, 1999, 2003 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 2 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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#include <signal.h>
+#include <setjmp.h>
+
+enum tests {
+  code_entry_point, code_descriptor, data_pointer
+};
+
+static volatile enum tests test;
+
+/* Some basic types and zero buffers.  */
+
+typedef long data_t;
+typedef long code_t (void);
+static volatile data_t *data[10];
+static volatile code_t *code[10];
+
+jmp_buf env;
+
+extern void
+keeper (int sig)
+{
+  longjmp (env, 0);
+}
+
+extern long
+bowler (void)
+{
+  switch (test)
+    {
+    case data_pointer:
+      return *data[0];
+    case code_entry_point:
+      return code[0] ();
+    case code_descriptor:
+      return ((code_t *) &code) ();
+    }
+}
+
+int
+main ()
+{
+  static volatile int i;
+  signal (SIGSEGV, keeper);
+  for (i = 0; i < 10; i++)
+    {
+      setjmp (env);
+      bowler ();
+    }
+}