1 /* 2 * Copyright (c) 2009, 2010, 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 #include "precompiled.hpp" 26 #include "ci/ciCPCache.hpp" 27 #include "ci/ciUtilities.hpp" 28 #include "oops/cpCacheOop.hpp" 29 30 // ciCPCache 31 32 // ------------------------------------------------------------------ 33 // ciCPCache::get_f1_offset 34 size_t ciCPCache::get_f1_offset(int index) { 35 // Calculate the offset from the constantPoolCacheOop to the f1 36 // field. 37 ByteSize f1_offset = 38 constantPoolCacheOopDesc::entry_offset(index) + 39 ConstantPoolCacheEntry::f1_offset(); 40 41 return in_bytes(f1_offset); 42 } 43 44 45 // ------------------------------------------------------------------ 46 // ciCPCache::is_f1_null_at 47 bool ciCPCache::is_f1_null_at(int index) { 48 VM_ENTRY_MARK; 49 oop f1 = entry_at(index)->f1(); 50 return (f1 == NULL); 51 } 52 53 54 // ------------------------------------------------------------------ 55 // ciCPCache::get_pool_index 56 int ciCPCache::get_pool_index(int index) { 57 VM_ENTRY_MARK; 58 ConstantPoolCacheEntry* e = entry_at(index); 59 if (e->is_secondary_entry()) 60 e = entry_at(e->main_entry_index()); 61 return e->constant_pool_index(); 62 } 63 64 65 // ------------------------------------------------------------------ 66 // ciCPCache::print 67 // 68 // Print debugging information about the cache. 69 void ciCPCache::print() { 70 Unimplemented(); 71 }