[sgen] Debugging code to check gray queue section's states.

[mono.git] / mono / metadata / sgen-conf.h

diff --git a/mono/metadata/sgen-conf.h b/mono/metadata/sgen-conf.h
index 19f28cde038411ae6f1248b73232c3353d8942d7..7920bb6fe58207fb4460fc0c609a2b042c59970f 100644 (file)
--- a/mono/metadata/sgen-conf.h
+++ b/mono/metadata/sgen-conf.h
@@ -1,26 +1,23 @@
 /*
+ * sgen-conf.h: Tunable parameters and debugging switches.
+ *
  * Copyright 2001-2003 Ximian, Inc
  * Copyright 2003-2010 Novell, Inc.
  * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
- * 
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * Copyright (C) 2012 Xamarin Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License 2.0 as published by the Free Software Foundation;
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License 2.0 along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #ifndef __MONO_SGENCONF_H__
 #define __MONO_SGENCONF_H__
@@ -65,12 +62,32 @@ typedef guint64 mword;
  */
 //#define SGEN_BINARY_PROTOCOL
 
+/*
+ * This enables checks whenever objects are enqueued in gray queues.
+ * Right now the only check done is that we never enqueue nursery
+ * pointers in the concurrent collector.
+ */
+//#define SGEN_CHECK_GRAY_OBJECT_ENQUEUE
+
+/*
+ * This keeps track of where a gray object queue section is and
+ * whether it is where it should be.
+ */
+//#define SGEN_CHECK_GRAY_OBJECT_SECTIONS
+
 /*
  * Define this and use the "xdomain-checks" MONO_GC_DEBUG option to
  * have cross-domain checks in the write barrier.
  */
 //#define XDOMAIN_CHECKS_IN_WBARRIER
 
+/*
+ * Define this to get number of objects marked information in the
+ * concurrent GC DTrace probes.  Has a small performance impact, so
+ * it's disabled by default.
+ */
+//#define SGEN_COUNT_NUMBER_OF_MAJOR_OBJECTS_MARKED
+
 #ifndef SGEN_BINARY_PROTOCOL
 #ifndef HEAVY_STATISTICS
 #define MANAGED_ALLOCATION
@@ -82,11 +99,17 @@ typedef guint64 mword;
 
 /*
  * Maximum level of debug to enable on this build.
- * Making this a static variable enables us to put logging in a lot of places.
- * FIXME decouple logging from assertions
+ * Making this a constant enables us to put logging in a lot of places and
+ * not pay its cost on release builds.
  */
 #define SGEN_MAX_DEBUG_LEVEL 2
 
+/*
+ * Maximum level of asserts to enable on this build.
+ * FIXME replace all magic numbers with defines.
+ */
+#define SGEN_MAX_ASSERT_LEVEL 2
+
 
 #define GC_BITS_PER_WORD (sizeof (mword) * 8)