Tue, 15 Nov 2011 20:17:33 +0100
7110152: assert(size_in_words <= (julong)max_jint) failed: no overflow
Summary: Reduce what arrayOopDesc::max_array_length() returns to avoid int overflow
Reviewed-by: kvn, dholmes, tonyp
duke@435 | 1 | /* |
never@2658 | 2 | * Copyright (c) 1997, 2011, 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_KLASSOOP_HPP |
stefank@2314 | 26 | #define SHARE_VM_OOPS_KLASSOOP_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "oops/oop.hpp" |
stefank@2314 | 29 | |
duke@435 | 30 | // A klassOop is the C++ equivalent of a Java class. |
duke@435 | 31 | // Part of a klassOopDesc is a Klass which handle the |
duke@435 | 32 | // dispatching for the C++ method calls. |
duke@435 | 33 | |
duke@435 | 34 | // klassOop object layout: |
duke@435 | 35 | // [header ] |
duke@435 | 36 | // [klass_field] |
duke@435 | 37 | // [KLASS ] |
duke@435 | 38 | |
duke@435 | 39 | class klassOopDesc : public oopDesc { |
duke@435 | 40 | public: |
duke@435 | 41 | // size operation |
duke@435 | 42 | static int header_size() { return sizeof(klassOopDesc)/HeapWordSize; } |
duke@435 | 43 | |
duke@435 | 44 | // support for code generation |
duke@435 | 45 | static int klass_part_offset_in_bytes() { return sizeof(klassOopDesc); } |
duke@435 | 46 | |
duke@435 | 47 | // returns the Klass part containing dispatching behavior |
never@2658 | 48 | Klass* klass_part() const { return (Klass*)((address)this + klass_part_offset_in_bytes()); } |
never@2658 | 49 | |
never@2658 | 50 | // Convenience wrapper |
never@2658 | 51 | inline oop java_mirror() const; |
never@2658 | 52 | |
never@2658 | 53 | private: |
never@2658 | 54 | // These have no implementation since klassOop should never be accessed in this fashion |
never@2658 | 55 | oop obj_field(int offset) const; |
twisti@3131 | 56 | volatile oop obj_field_volatile(int offset) const; |
never@2658 | 57 | void obj_field_put(int offset, oop value); |
twisti@3131 | 58 | void obj_field_put_raw(int offset, oop value); |
twisti@3131 | 59 | void obj_field_put_volatile(int offset, oop value); |
never@2658 | 60 | |
never@2658 | 61 | jbyte byte_field(int offset) const; |
never@2658 | 62 | void byte_field_put(int offset, jbyte contents); |
never@2658 | 63 | |
never@2658 | 64 | jchar char_field(int offset) const; |
never@2658 | 65 | void char_field_put(int offset, jchar contents); |
never@2658 | 66 | |
never@2658 | 67 | jboolean bool_field(int offset) const; |
never@2658 | 68 | void bool_field_put(int offset, jboolean contents); |
never@2658 | 69 | |
never@2658 | 70 | jint int_field(int offset) const; |
never@2658 | 71 | void int_field_put(int offset, jint contents); |
never@2658 | 72 | |
never@2658 | 73 | jshort short_field(int offset) const; |
never@2658 | 74 | void short_field_put(int offset, jshort contents); |
never@2658 | 75 | |
never@2658 | 76 | jlong long_field(int offset) const; |
never@2658 | 77 | void long_field_put(int offset, jlong contents); |
never@2658 | 78 | |
never@2658 | 79 | jfloat float_field(int offset) const; |
never@2658 | 80 | void float_field_put(int offset, jfloat contents); |
never@2658 | 81 | |
never@2658 | 82 | jdouble double_field(int offset) const; |
never@2658 | 83 | void double_field_put(int offset, jdouble contents); |
never@2658 | 84 | |
never@2658 | 85 | address address_field(int offset) const; |
never@2658 | 86 | void address_field_put(int offset, address contents); |
never@2658 | 87 | |
never@2658 | 88 | oop obj_field_acquire(int offset) const; |
never@2658 | 89 | void release_obj_field_put(int offset, oop value); |
never@2658 | 90 | |
never@2658 | 91 | jbyte byte_field_acquire(int offset) const; |
never@2658 | 92 | void release_byte_field_put(int offset, jbyte contents); |
never@2658 | 93 | |
never@2658 | 94 | jchar char_field_acquire(int offset) const; |
never@2658 | 95 | void release_char_field_put(int offset, jchar contents); |
never@2658 | 96 | |
never@2658 | 97 | jboolean bool_field_acquire(int offset) const; |
never@2658 | 98 | void release_bool_field_put(int offset, jboolean contents); |
never@2658 | 99 | |
never@2658 | 100 | jint int_field_acquire(int offset) const; |
never@2658 | 101 | void release_int_field_put(int offset, jint contents); |
never@2658 | 102 | |
never@2658 | 103 | jshort short_field_acquire(int offset) const; |
never@2658 | 104 | void release_short_field_put(int offset, jshort contents); |
never@2658 | 105 | |
never@2658 | 106 | jlong long_field_acquire(int offset) const; |
never@2658 | 107 | void release_long_field_put(int offset, jlong contents); |
never@2658 | 108 | |
never@2658 | 109 | jfloat float_field_acquire(int offset) const; |
never@2658 | 110 | void release_float_field_put(int offset, jfloat contents); |
never@2658 | 111 | |
never@2658 | 112 | jdouble double_field_acquire(int offset) const; |
never@2658 | 113 | void release_double_field_put(int offset, jdouble contents); |
never@2658 | 114 | |
never@2658 | 115 | address address_field_acquire(int offset) const; |
never@2658 | 116 | void release_address_field_put(int offset, address contents); |
duke@435 | 117 | }; |
stefank@2314 | 118 | |
stefank@2314 | 119 | #endif // SHARE_VM_OOPS_KLASSOOP_HPP |