Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/oops/compiledICHolderOop.hpp@63997f575155 (annotated)
src/share/vm/oops/compiledICHolderOop.hpp
Wed, 30 Mar 2011 07:47:19 -0700
- author
- never
- date
- Wed, 30 Mar 2011 07:47:19 -0700
- changeset 2693
- 63997f575155
- parent 2314
- f95d63e2154a
- permissions
- -rw-r--r--
7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
Reviewed-by: kvn, dcubed
| duke@435 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
| stefank@2314 | 26 | #define SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
| stefank@2314 | 27 | |
| stefank@2314 | 28 | #include "oops/oop.hpp" |
| stefank@2314 | 29 | |
| duke@435 | 30 | // A compiledICHolderOop is a helper object for the inline cache implementation. |
| duke@435 | 31 | // It holds an intermediate value (method+klass pair) used when converting from |
| duke@435 | 32 | // compiled to an interpreted call. |
| duke@435 | 33 | // |
| duke@435 | 34 | // compiledICHolderOops are always allocated permanent (to avoid traversing the |
| duke@435 | 35 | // codeCache during scavenge). |
| duke@435 | 36 | |
| duke@435 | 37 | |
| duke@435 | 38 | class compiledICHolderOopDesc : public oopDesc { |
| duke@435 | 39 | friend class VMStructs; |
| duke@435 | 40 | private: |
| duke@435 | 41 | methodOop _holder_method; |
| duke@435 | 42 | klassOop _holder_klass; // to avoid name conflict with oopDesc::_klass |
| duke@435 | 43 | public: |
| duke@435 | 44 | // accessors |
| duke@435 | 45 | methodOop holder_method() const { return _holder_method; } |
| duke@435 | 46 | klassOop holder_klass() const { return _holder_klass; } |
| duke@435 | 47 | |
| duke@435 | 48 | void set_holder_method(methodOop m) { oop_store_without_check((oop*)&_holder_method, (oop)m); } |
| duke@435 | 49 | void set_holder_klass(klassOop k) { oop_store_without_check((oop*)&_holder_klass, (oop)k); } |
| duke@435 | 50 | |
| duke@435 | 51 | static int header_size() { return sizeof(compiledICHolderOopDesc)/HeapWordSize; } |
| duke@435 | 52 | static int object_size() { return align_object_size(header_size()); } |
| duke@435 | 53 | |
| duke@435 | 54 | // interpreter support (offsets in bytes) |
| duke@435 | 55 | static int holder_method_offset() { return offset_of(compiledICHolderOopDesc, _holder_method); } |
| duke@435 | 56 | static int holder_klass_offset() { return offset_of(compiledICHolderOopDesc, _holder_klass); } |
| duke@435 | 57 | |
| duke@435 | 58 | // GC support |
| duke@435 | 59 | oop* adr_holder_method() const { return (oop*)&_holder_method; } |
| duke@435 | 60 | oop* adr_holder_klass() const { return (oop*)&_holder_klass; } |
| duke@435 | 61 | }; |
| stefank@2314 | 62 | |
| stefank@2314 | 63 | #endif // SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
