1/*
2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24#ifndef SHARE_GC_Z_ZTHREADLOCALDATA_HPP
25#define SHARE_GC_Z_ZTHREADLOCALDATA_HPP
26
27#include "gc/z/zMarkStack.hpp"
28#include "gc/z/zGlobals.hpp"
29#include "runtime/thread.hpp"
30#include "utilities/debug.hpp"
31#include "utilities/sizes.hpp"
32
33class ZThreadLocalData {
34private:
35 uintptr_t _address_bad_mask;
36 ZMarkThreadLocalStacks _stacks;
37
38 ZThreadLocalData() :
39 _address_bad_mask(0),
40 _stacks() {}
41
42 static ZThreadLocalData* data(Thread* thread) {
43 return thread->gc_data<ZThreadLocalData>();
44 }
45
46public:
47 static void create(Thread* thread) {
48 new (data(thread)) ZThreadLocalData();
49 }
50
51 static void destroy(Thread* thread) {
52 data(thread)->~ZThreadLocalData();
53 }
54
55 static void set_address_bad_mask(Thread* thread, uintptr_t mask) {
56 data(thread)->_address_bad_mask = mask;
57 }
58
59 static ZMarkThreadLocalStacks* stacks(Thread* thread) {
60 return &data(thread)->_stacks;
61 }
62
63 static ByteSize address_bad_mask_offset() {
64 return Thread::gc_data_offset() + byte_offset_of(ZThreadLocalData, _address_bad_mask);
65 }
66
67 static ByteSize nmethod_disarmed_offset() {
68 return address_bad_mask_offset() + in_ByteSize(ZNMethodDisarmedOffset);
69 }
70};
71
72#endif // SHARE_GC_Z_ZTHREADLOCALDATA_HPP
73