Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/concurrentMark.inline.hpp @ 20337:1f1d373cd044
8038423: G1: Decommit memory within heap
Summary: Allow G1 to decommit memory of arbitrary regions within the heap and their associated auxiliary data structures card table, BOT, hot card cache, and mark bitmaps.
Reviewed-by: mgerdin, brutisso, jwilhelm
author | tschatzl |
---|---|
date | Thu, 21 Aug 2014 11:47:10 +0200 |
parents | 78bbf4d43a14 |
children | a8ea2f110d87 |
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--- a/src/share/vm/gc_implementation/g1/concurrentMark.inline.hpp Tue Aug 19 10:50:27 2014 +0200 +++ b/src/share/vm/gc_implementation/g1/concurrentMark.inline.hpp Thu Aug 21 11:47:10 2014 +0200 @@ -268,6 +268,36 @@ return iterate(cl, mr); } +#define check_mark(addr) \ + assert(_bmStartWord <= (addr) && (addr) < (_bmStartWord + _bmWordSize), \ + "outside underlying space?"); \ + assert(G1CollectedHeap::heap()->is_in_exact(addr), \ + err_msg("Trying to access not available bitmap "PTR_FORMAT \ + " corresponding to "PTR_FORMAT" (%u)", \ + p2i(this), p2i(addr), G1CollectedHeap::heap()->addr_to_region(addr))); + +inline void CMBitMap::mark(HeapWord* addr) { + check_mark(addr); + _bm.set_bit(heapWordToOffset(addr)); +} + +inline void CMBitMap::clear(HeapWord* addr) { + check_mark(addr); + _bm.clear_bit(heapWordToOffset(addr)); +} + +inline bool CMBitMap::parMark(HeapWord* addr) { + check_mark(addr); + return _bm.par_set_bit(heapWordToOffset(addr)); +} + +inline bool CMBitMap::parClear(HeapWord* addr) { + check_mark(addr); + return _bm.par_clear_bit(heapWordToOffset(addr)); +} + +#undef check_mark + inline void CMTask::push(oop obj) { HeapWord* objAddr = (HeapWord*) obj; assert(_g1h->is_in_g1_reserved(objAddr), "invariant");