* m32c.opc (BRK, GDBBRK): Remove debug logic.

[deliverable/binutils-gdb.git] / sim / common / sim-io.c

diff --git a/sim/common/sim-io.c b/sim/common/sim-io.c
index f3d2f674a64e3c397d6eb32ad641856d68db54b3..a5e4a9f3bd9446feb8bb0bd734eff2d5025f93ab 100644 (file)
--- a/sim/common/sim-io.c
+++ b/sim/common/sim-io.c
@@ -1,23 +1,23 @@
-/*  This file is part of the program psim.
+/* The common simulator framework for GDB, the GNU Debugger.
 
-    Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
-    Copyright (C) 1998, Cygnus Solutions.
+   Copyright 2002, 2007, 2008 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.
+   Contributed by Andrew Cagney and Red Hat.
 
-    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.
- 
-    */
+   This file is part of GDB.
+
+   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 "sim-main.h"
@@ -33,6 +33,13 @@
 #include <unistd.h>
 #endif
 
+/* Define the rate at which the simulator should poll the host
+   for a quit. */
+#ifndef POLL_QUIT_INTERVAL
+#define POLL_QUIT_INTERVAL 0x10
+#endif
+
+static int poll_quit_count = POLL_QUIT_INTERVAL;
 
 /* See the file include/callbacks.h for a description */
 
@@ -304,9 +311,12 @@ sim_io_error(SIM_DESC sd,
 void
 sim_io_poll_quit(SIM_DESC sd)
 {
-  if (STATE_CALLBACK (sd)->poll_quit != NULL)
-    if (STATE_CALLBACK (sd)->poll_quit (STATE_CALLBACK (sd)))
-      sim_stop (sd);
+  if (STATE_CALLBACK (sd)->poll_quit != NULL && poll_quit_count-- < 0)
+    {
+      poll_quit_count = POLL_QUIT_INTERVAL;
+      if (STATE_CALLBACK (sd)->poll_quit (STATE_CALLBACK (sd)))
+       sim_stop (sd);
+    }
 }