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/*
* Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "classfile/classLoaderDataGraph.hpp"
#include "code/nmethod.hpp"
#include "gc/shared/barrierSetNMethod.hpp"
#include "memory/iterator.inline.hpp"
#include "oops/oop.inline.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
DoNothingClosure do_nothing_cl;
void CLDToOopClosure::do_cld(ClassLoaderData* cld) {
cld->oops_do(_oop_closure, _cld_claim);
}
void ObjectToOopClosure::do_object(oop obj) {
obj->oop_iterate(_cl);
}
void CodeBlobToOopClosure::do_nmethod(nmethod* nm) {
nm->oops_do(_cl);
if (_fix_relocations) {
nm->fix_oop_relocations();
}
}
void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) {
nmethod* nm = cb->as_nmethod_or_null();
if (nm != NULL) {
do_nmethod(nm);
}
}
void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) {
nmethod* nm = cb->as_nmethod_or_null();
if (nm != NULL && nm->oops_do_try_claim()) {
// Process the oops in the nmethod
nm->oops_do(_cl);
if (_keepalive_nmethods) {
// CodeCache unloading support
nm->mark_as_maybe_on_stack();
BarrierSetNMethod* bs_nm = BarrierSet::barrier_set()->barrier_set_nmethod();
if (bs_nm != NULL) {
bs_nm->disarm(nm);
}
}
if (_fix_relocations) {
nm->fix_oop_relocations();
}
}
}
void CodeBlobToNMethodClosure::do_code_blob(CodeBlob* cb) {
nmethod* nm = cb->as_nmethod_or_null();
if (nm != NULL) {
_nm_cl->do_nmethod(nm);
}
}
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