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8289093: BlockLocationPrinter fails to decode addresses with G1

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Reviewed-by: ayang, iwalulya
This commit is contained in:
Thomas Schatzl 2022-06-27 11:41:24 +00:00
parent 784a0f0496
commit 699ad45b43
1 changed files with 6 additions and 0 deletions
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6
src/hotspot/share/gc/g1/g1CollectedHeap.cpp
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@ -2348,6 +2348,12 @@ void G1CollectedHeap::par_iterate_regions_array(HeapRegionClosure* cl,
HeapWord* G1CollectedHeap::block_start(const void* addr) const { HeapWord* G1CollectedHeap::block_start(const void* addr) const {
HeapRegion* hr = heap_region_containing(addr); HeapRegion* hr = heap_region_containing(addr);
// The CollectedHeap API requires us to not fail for any given address within
// the heap. HeapRegion::block_start() has been optimized to not accept addresses
// outside of the allocated area.
if (addr >= hr->top()) {
return nullptr;
}
return hr->block_start(addr); return hr->block_start(addr);
} }