--- a/src/hotspot/share/memory/heapShared.hpp Wed Aug 22 16:06:51 2018 +0100
+++ b/src/hotspot/share/memory/heapShared.hpp Tue Aug 14 09:59:37 2018 -0700
@@ -30,6 +30,7 @@
#include "oops/objArrayKlass.hpp"
#include "oops/oop.hpp"
#include "oops/typeArrayKlass.hpp"
+#include "utilities/bitMap.hpp"
#include "utilities/growableArray.hpp"
#if INCLUDE_CDS_JAVA_HEAP
@@ -123,13 +124,33 @@
static int num_of_subgraph_infos();
static size_t build_archived_subgraph_info_records(int num_records);
+
+ // Used by decode_with_archived_oop_encoding_mode
+ static address _narrow_oop_base;
+ static int _narrow_oop_shift;
+
#endif // INCLUDE_CDS_JAVA_HEAP
public:
static char* read_archived_subgraph_infos(char* buffer) NOT_CDS_JAVA_HEAP_RETURN_(buffer);
static void write_archived_subgraph_infos() NOT_CDS_JAVA_HEAP_RETURN;
static void initialize_from_archived_subgraph(Klass* k) NOT_CDS_JAVA_HEAP_RETURN;
+ // NarrowOops stored in the CDS archive may use a different encoding scheme
+ // than Universe::narrow_oop_{base,shift} -- see FileMapInfo::map_heap_regions_impl.
+ // To decode them, do not use CompressedOops::decode_not_null. Use this
+ // function instead.
+ inline static oop decode_with_archived_oop_encoding_mode(narrowOop v) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
+
+ static void init_narrow_oop_decoding(address base, int shift) NOT_CDS_JAVA_HEAP_RETURN;
+
+ static void patch_archived_heap_embedded_pointers(MemRegion mem, address oopmap,
+ size_t oopmap_in_bits) NOT_CDS_JAVA_HEAP_RETURN;
+
static void init_archivable_static_fields(Thread* THREAD) NOT_CDS_JAVA_HEAP_RETURN;
static void archive_module_graph_objects(Thread* THREAD) NOT_CDS_JAVA_HEAP_RETURN;
+
+#if INCLUDE_CDS_JAVA_HEAP
+ static ResourceBitMap calculate_oopmap(MemRegion region);
+#endif
};
#endif // SHARE_VM_MEMORY_HEAPSHARED_HPP