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 25 #ifndef SHARE_VM_OOPS_CPCACHEOOP_INLINE_HPP 26 #define SHARE_VM_OOPS_CPCACHEOOP_INLINE_HPP 27 28 #include "oops/cpCache.hpp" 29 #include "runtime/orderAccess.inline.hpp" 30 31 inline int ConstantPoolCacheEntry::indices_ord() const { return OrderAccess::load_acquire(&_indices); } 32 33 inline Bytecodes::Code ConstantPoolCacheEntry::bytecode_1() const { 34 return Bytecodes::cast((indices_ord() >> bytecode_1_shift) & bytecode_1_mask); 35 } 36 37 inline Bytecodes::Code ConstantPoolCacheEntry::bytecode_2() const { 38 return Bytecodes::cast((indices_ord() >> bytecode_2_shift) & bytecode_2_mask); 39 } 40 41 // Has this bytecode been resolved? Only valid for invokes and get/put field/static. 42 inline bool ConstantPoolCacheEntry::is_resolved(Bytecodes::Code code) const { 43 switch (bytecode_number(code)) { 44 case 1: return (bytecode_1() == code); 45 case 2: return (bytecode_2() == code); 46 } 47 return false; // default: not resolved 48 } 49 50 inline Method* ConstantPoolCacheEntry::f2_as_interface_method() const { 51 assert(bytecode_1() == Bytecodes::_invokeinterface, ""); 52 return (Method*)_f2; 53 } 54 55 inline Metadata* ConstantPoolCacheEntry::f1_ord() const { return (Metadata *)OrderAccess::load_acquire(&_f1); } 56 57 inline Method* ConstantPoolCacheEntry::f1_as_method() const { 58 Metadata* f1 = f1_ord(); assert(f1 == NULL || f1->is_method(), ""); 59 return (Method*)f1; 60 } 61 62 inline Klass* ConstantPoolCacheEntry::f1_as_klass() const { 63 Metadata* f1 = f1_ord(); assert(f1 == NULL || f1->is_klass(), ""); 64 return (Klass*)f1; 65 } 66 67 inline bool ConstantPoolCacheEntry::is_f1_null() const { Metadata* f1 = f1_ord(); return f1 == NULL; } 68 69 inline bool ConstantPoolCacheEntry::has_appendix() const { 70 return (!is_f1_null()) && (_flags & (1 << has_appendix_shift)) != 0; 71 } 72 73 inline bool ConstantPoolCacheEntry::has_method_type() const { 74 return (!is_f1_null()) && (_flags & (1 << has_method_type_shift)) != 0; 75 } 76 77 inline intx ConstantPoolCacheEntry::flags_ord() const { return (intx)OrderAccess::load_acquire(&_flags); } 78 79 inline bool ConstantPoolCacheEntry::indy_resolution_failed() const { 80 intx flags = flags_ord(); 81 return (flags & (1 << indy_resolution_failed_shift)) != 0; 82 } 83 84 // Constructor 85 inline ConstantPoolCache::ConstantPoolCache(int length, 86 const intStack& inverse_index_map, 87 const intStack& invokedynamic_inverse_index_map, 88 const intStack& invokedynamic_references_map) : 89 _length(length), 90 _constant_pool(NULL) { 91 CDS_JAVA_HEAP_ONLY(_archived_references = 0;) 92 initialize(inverse_index_map, invokedynamic_inverse_index_map, 93 invokedynamic_references_map); 94 for (int i = 0; i < length; i++) { 95 assert(entry_at(i)->is_f1_null(), "Failed to clear?"); 96 } 97 } 98 99 #endif // SHARE_VM_OOPS_CPCACHEOOP_INLINE_HPP