2004-04-21 Andrew Cagney <cagney@redhat.com>

	* gdb.base/sigstep.c: New file.
	* gdb.base/sigstep.exp: New file.

1 files changed, 56 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/sigstep.c b/gdb/testsuite/gdb.base/sigstep.c
new file mode 100644
index 0000000..a9e8618
--- /dev/null
+++ b/gdb/testsuite/gdb.base/sigstep.c
@@ -0,0 +1,56 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2004 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 <stdio.h>
+#include <signal.h>
+#include <sys/time.h>
+
+static volatile int done;
+
+static void
+handler (int sig)
+{
+  done = 1;
+} /* handler */
+
+main ()
+{
+  /* Set up the signal handler.  */
+  {
+    struct sigaction action;
+    memset (&action, 0, sizeof (action));
+    action.sa_handler = handler;
+    sigaction (SIGVTALRM, &action, NULL);
+  }
+
+  /* Set up a one-off timer.  A timer, rather than SIGSEGV, is used as
+     after a timer handler finishes the interrupted code can safely
+     resume.  */
+  {
+    struct itimerval itime;
+    memset (&itime, 0, sizeof (itime));
+    itime.it_value.tv_usec = 250 * 1000;
+    setitimer (ITIMER_VIRTUAL, &itime, NULL);
+  }
+
+  /* Wait.  */
+  while (!done);
+  return 0;
+} /* main */