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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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55
hotspot/src/share/vm/oops/compiledICHolder.cpp Normal file
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/*
* Copyright (c) 1998, 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 "oops/compiledICHolder.hpp"
#include "oops/klass.hpp"
#include "oops/method.hpp"
#include "oops/oop.inline2.hpp"
volatile int CompiledICHolder::_live_count;
volatile int CompiledICHolder::_live_not_claimed_count;
// Printing
void CompiledICHolder::print_on(outputStream* st) const {
st->print("%s", internal_name());
st->print(" - method: "); holder_method()->print_value_on(st); st->cr();
st->print(" - klass: "); holder_klass()->print_value_on(st); st->cr();
}
void CompiledICHolder::print_value_on(outputStream* st) const {
st->print("%s", internal_name());
}
// Verification
void CompiledICHolder::verify_on(outputStream* st) {
guarantee(holder_method()->is_metadata(), "should be in permspace");
guarantee(holder_method()->is_method(), "should be method");
guarantee(holder_klass()->is_metadata(), "should be in permspace");
guarantee(holder_klass()->is_klass(), "should be klass");
}