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 "runtime/thread.hpp" 29 #include "utilities/debug.hpp" 30 #include "utilities/sizes.hpp" 31 32 class ZThreadLocalData { 33 private: 34 uintptr_t _address_bad_mask; 35 ZMarkThreadLocalStacks _stacks; 36 37 ZThreadLocalData() : 38 _address_bad_mask(0), 39 _stacks() {} 40 41 static ZThreadLocalData* data(Thread* thread) { 42 return thread->gc_data<ZThreadLocalData>(); 43 } 44 45 public: 46 static void create(Thread* thread) { 47 new (data(thread)) ZThreadLocalData(); 48 } 49 50 static void destroy(Thread* thread) { 51 data(thread)->~ZThreadLocalData(); 52 } 53 54 static void set_address_bad_mask(Thread* thread, uintptr_t mask) { 55 data(thread)->_address_bad_mask = mask; 56 } 57 58 static ZMarkThreadLocalStacks* stacks(Thread* thread) { 59 return &data(thread)->_stacks; 60 } 61 62 static ByteSize address_bad_mask_offset() { 63 return Thread::gc_data_offset() + byte_offset_of(ZThreadLocalData, _address_bad_mask); 64 } 65 }; 66 67 #endif // SHARE_GC_Z_ZTHREADLOCALDATA_HPP