66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
/*
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* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "code/nmethod.hpp"
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#include "gc/g1/g1CodeBlobClosure.hpp"
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#include "gc/g1/g1CollectedHeap.inline.hpp"
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#include "gc/g1/heapRegion.hpp"
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#include "gc/g1/heapRegionRemSet.hpp"
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#include "oops/access.inline.hpp"
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#include "oops/compressedOops.inline.hpp"
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#include "oops/oop.inline.hpp"
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template <typename T>
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void G1CodeBlobClosure::HeapRegionGatheringOopClosure::do_oop_work(T* p) {
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_work->do_oop(p);
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T oop_or_narrowoop = RawAccess<>::oop_load(p);
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if (!CompressedOops::is_null(oop_or_narrowoop)) {
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oop o = CompressedOops::decode_not_null(oop_or_narrowoop);
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HeapRegion* hr = _g1h->heap_region_containing(o);
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assert(!_g1h->is_in_cset(o) || hr->rem_set()->strong_code_roots_list_contains(_nm), "if o still in collection set then evacuation failed and nm must already be in the remset");
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hr->add_strong_code_root(_nm);
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}
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}
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void G1CodeBlobClosure::HeapRegionGatheringOopClosure::do_oop(oop* o) {
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do_oop_work(o);
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}
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void G1CodeBlobClosure::HeapRegionGatheringOopClosure::do_oop(narrowOop* o) {
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do_oop_work(o);
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}
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void G1CodeBlobClosure::do_code_blob(CodeBlob* cb) {
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nmethod* nm = cb->as_nmethod_or_null();
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if (nm != NULL) {
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if (!nm->test_set_oops_do_mark()) {
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_oc.set_nm(nm);
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nm->oops_do(&_oc);
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nm->fix_oop_relocations();
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}
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}
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}
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