author | eosterlund |
Tue, 26 Feb 2019 11:36:00 +0100 | |
changeset 53921 | a590b6107ab3 |
parent 53892 | 33790c8e4647 |
child 53922 | 00fcc1ef31e8 |
permissions | -rw-r--r-- |
53892 | 1 |
/* |
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* Copyright (c) 2017, 2019, 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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#include "precompiled.hpp" |
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#include "gc/z/zLock.inline.hpp" |
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#include "gc/z/zNMethodAllocator.hpp" |
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#include "gc/z/zNMethodData.hpp" |
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#include "memory/allocation.hpp" |
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#include "runtime/atomic.hpp" |
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#include "runtime/orderAccess.hpp" |
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#include "utilities/align.hpp" |
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#include "utilities/debug.hpp" |
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#include "utilities/growableArray.hpp" |
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size_t ZNMethodDataOops::header_size() { |
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const size_t size = sizeof(ZNMethodDataOops); |
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assert(is_aligned(size, sizeof(oop*)), "Header misaligned"); |
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return size; |
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} |
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ZNMethodDataOops* ZNMethodDataOops::create(const GrowableArray<oop*>& immediates, bool has_non_immediates) { |
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// Allocate memory for the ZNMethodDataOops object |
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// plus the immediate oop* array that follows right after. |
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const size_t size = ZNMethodDataOops::header_size() + (sizeof(oop*) * immediates.length()); |
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void* const mem = ZNMethodAllocator::allocate(size); |
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return ::new (mem) ZNMethodDataOops(immediates, has_non_immediates); |
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} |
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void ZNMethodDataOops::destroy(ZNMethodDataOops* oops) { |
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ZNMethodAllocator::free(oops); |
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} |
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ZNMethodDataOops::ZNMethodDataOops(const GrowableArray<oop*>& immediates, bool has_non_immediates) : |
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_nimmediates(immediates.length()), |
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_has_non_immediates(has_non_immediates) { |
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// Save all immediate oops |
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for (size_t i = 0; i < _nimmediates; i++) { |
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immediates_begin()[i] = immediates.at(i); |
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} |
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} |
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size_t ZNMethodDataOops::immediates_count() const { |
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return _nimmediates; |
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} |
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oop** ZNMethodDataOops::immediates_begin() const { |
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// The immediate oop* array starts immediately after this object |
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return (oop**)((uintptr_t)this + header_size()); |
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} |
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oop** ZNMethodDataOops::immediates_end() const { |
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return immediates_begin() + immediates_count(); |
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} |
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bool ZNMethodDataOops::has_non_immediates() const { |
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return _has_non_immediates; |
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} |
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||
53921
a590b6107ab3
8218974: Free GC native structures in nmethod::flush
eosterlund
parents:
53892
diff
changeset
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ZNMethodData::ZNMethodData() : |
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_lock(), |
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_oops(NULL) {} |
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53921
a590b6107ab3
8218974: Free GC native structures in nmethod::flush
eosterlund
parents:
53892
diff
changeset
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ZNMethodData::~ZNMethodData() { |
a590b6107ab3
8218974: Free GC native structures in nmethod::flush
eosterlund
parents:
53892
diff
changeset
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ZNMethodAllocator::free(_oops); |
a590b6107ab3
8218974: Free GC native structures in nmethod::flush
eosterlund
parents:
53892
diff
changeset
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} |
a590b6107ab3
8218974: Free GC native structures in nmethod::flush
eosterlund
parents:
53892
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changeset
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ZReentrantLock* ZNMethodData::lock() { |
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return &_lock; |
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} |
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ZNMethodDataOops* ZNMethodData::oops() const { |
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return OrderAccess::load_acquire(&_oops); |
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} |
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ZNMethodDataOops* ZNMethodData::swap_oops(ZNMethodDataOops* new_oops) { |
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return Atomic::xchg(new_oops, &_oops); |
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} |