Mercurial > hg > truffle
view src/share/vm/memory/iterator.cpp @ 10405:f2110083203d
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author | sla |
---|---|
date | Mon, 10 Jun 2013 11:30:51 +0200 |
parents | d0aa87f04bd5 |
children | 5888334c9c24 |
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/* * Copyright (c) 1997, 2012, 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 "memory/iterator.hpp" #include "oops/oop.inline.hpp" void KlassToOopClosure::do_klass(Klass* k) { k->oops_do(_oop_closure); } void CLDToOopClosure::do_cld(ClassLoaderData* cld) { cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld); } void ObjectToOopClosure::do_object(oop obj) { obj->oop_iterate(_cl); } void VoidClosure::do_void() { ShouldNotCallThis(); } MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate) : _active(activate) { if (_active) nmethod::oops_do_marking_prologue(); } MarkingCodeBlobClosure::MarkScope::~MarkScope() { if (_active) nmethod::oops_do_marking_epilogue(); } void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) { nmethod* nm = cb->as_nmethod_or_null(); if (nm == NULL) return; if (!nm->test_set_oops_do_mark()) { NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, 1st visit\n")); do_newly_marked_nmethod(nm); } else { NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, skipped on 2nd visit\n")); } } void CodeBlobToOopClosure::do_newly_marked_nmethod(nmethod* nm) { nm->oops_do(_cl, /*do_strong_roots_only=*/ true); } void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) { if (!_do_marking) { nmethod* nm = cb->as_nmethod_or_null(); NOT_PRODUCT(if (TraceScavenge && Verbose && nm != NULL) nm->print_on(tty, "oops_do, unmarked visit\n")); // This assert won't work, since there are lots of mini-passes // (mostly in debug mode) that co-exist with marking phases. //assert(!(cb->is_nmethod() && ((nmethod*)cb)->test_oops_do_mark()), "found marked nmethod during mark-free phase"); if (nm != NULL) { nm->oops_do(_cl); } } else { MarkingCodeBlobClosure::do_code_blob(cb); } }