1.1 --- a/src/share/vm/memory/iterator.hpp Thu Jan 27 13:42:28 2011 -0800
1.2 +++ b/src/share/vm/memory/iterator.hpp Thu Jan 27 16:11:27 2011 -0800
1.3 @@ -290,6 +290,22 @@
1.4 virtual void do_tag(int tag) = 0;
1.5 };
1.6
1.7 +class SymbolClosure : public StackObj {
1.8 + public:
1.9 + virtual void do_symbol(Symbol**) = 0;
1.10 +
1.11 + // Clear LSB in symbol address; it can be set by CPSlot.
1.12 + static Symbol* load_symbol(Symbol** p) {
1.13 + return (Symbol*)(intptr_t(*p) & ~1);
1.14 + }
1.15 +
1.16 + // Store symbol, adjusting new pointer if the original pointer was adjusted
1.17 + // (symbol references in constant pool slots have their LSB set to 1).
1.18 + static void store_symbol(Symbol** p, Symbol* sym) {
1.19 + *p = (Symbol*)(intptr_t(sym) | (intptr_t(*p) & 1));
1.20 + }
1.21 +};
1.22 +
1.23 #ifdef ASSERT
1.24 // This class is used to flag phases of a collection that
1.25 // can unload classes and which should override the
