src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
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rev 3985 : 7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
Summary: Verify that parts of the marking bitmaps that should not have marks do not have marks, i.e., the parts of the bitmap that cover [TAMS:top) areas for each heap region.
Reviewed-by:
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
@@ -1207,10 +1207,34 @@
void verify_not_dirty_region(HeapRegion* hr) PRODUCT_RETURN;
void verify_dirty_region(HeapRegion* hr) PRODUCT_RETURN;
void verify_dirty_young_list(HeapRegion* head) PRODUCT_RETURN;
void verify_dirty_young_regions() PRODUCT_RETURN;
+#ifndef PRODUCT
+ // Make sure that the given bitmap has no marked objects in the
+ // range [from,limit). If it does, print an error message and return
+ // false. Otherwise, just return true. bitmap_name should be "prev"
+ // or "next".
+ bool verify_bitmap(const char* bitmap_name, CMBitMapRO* bitmap,
+ HeapWord* from, HeapWord* limit);
+
+ // Verify that the prev / next bitmap range [tams,end) for the given
+ // region has no marks. Return true if all is well, false if errors
+ // are detected.
+ bool verify_bitmaps(const char* caller, HeapRegion* hr);
+#endif // PRODUCT
+
+ // If G1VerifyBitmaps is set, verify that the marking bitmaps for
+ // the given region do not have any spurious marks. If errors are
+ // detected, print appropriate error messages and crash.
+ void check_bitmaps(const char* caller, HeapRegion* hr) PRODUCT_RETURN;
+
+ // If G1VerifyBitmaps is set, verify that the marking bitmaps do not
+ // have any spurious marks. If errors are detected, print
+ // appropriate error messages and crash.
+ void check_bitmaps(const char* caller) PRODUCT_RETURN;
+
// verify_region_sets() performs verification over the region
// lists. It will be compiled in the product code to be used when
// necessary (i.e., during heap verification).
void verify_region_sets();