Mercurial > hg > truffle
annotate src/share/vm/oops/typeArrayOop.hpp @ 20649:3375833a603e
8064375: Change certain errors to warnings in CDS output.
Summary: Change CDS non-fatal preloading errors to warnings.
Reviewed-by: minqi, mseledtsov, coleenp
author | jiangli |
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date | Mon, 10 Nov 2014 19:28:51 -0500 |
parents | e4bd8244c085 |
children | 7848fc12602b |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OOPS_TYPEARRAYOOP_HPP |
26 #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP | |
27 | |
28 #include "oops/arrayOop.hpp" | |
29 #include "oops/typeArrayKlass.hpp" | |
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30 #include "runtime/orderAccess.inline.hpp" |
1972 | 31 |
0 | 32 // A typeArrayOop is an array containing basic types (non oop elements). |
33 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs} | |
34 #include <limits.h> | |
35 | |
36 class typeArrayOopDesc : public arrayOopDesc { | |
37 protected: | |
38 jchar* char_base() const { return (jchar*) base(T_CHAR); } | |
39 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); } | |
40 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); } | |
41 jint* int_base() const { return (jint*) base(T_INT); } | |
42 jlong* long_base() const { return (jlong*) base(T_LONG); } | |
43 jshort* short_base() const { return (jshort*) base(T_SHORT); } | |
44 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); } | |
45 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); } | |
46 | |
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47 friend class TypeArrayKlass; |
0 | 48 |
49 public: | |
50 jbyte* byte_at_addr(int which) const { | |
51 assert(is_within_bounds(which), "index out of bounds"); | |
52 return &byte_base()[which]; | |
53 } | |
54 | |
55 jboolean* bool_at_addr(int which) const { | |
56 assert(is_within_bounds(which), "index out of bounds"); | |
57 return &bool_base()[which]; | |
58 } | |
59 | |
60 jchar* char_at_addr(int which) const { | |
61 assert(is_within_bounds(which), "index out of bounds"); | |
62 return &char_base()[which]; | |
63 } | |
64 | |
65 jint* int_at_addr(int which) const { | |
66 assert(is_within_bounds(which), "index out of bounds"); | |
67 return &int_base()[which]; | |
68 } | |
69 | |
70 jshort* short_at_addr(int which) const { | |
71 assert(is_within_bounds(which), "index out of bounds"); | |
72 return &short_base()[which]; | |
73 } | |
74 | |
75 jushort* ushort_at_addr(int which) const { // for field descriptor arrays | |
76 assert(is_within_bounds(which), "index out of bounds"); | |
77 return (jushort*) &short_base()[which]; | |
78 } | |
79 | |
80 jlong* long_at_addr(int which) const { | |
81 assert(is_within_bounds(which), "index out of bounds"); | |
82 return &long_base()[which]; | |
83 } | |
84 | |
85 jfloat* float_at_addr(int which) const { | |
86 assert(is_within_bounds(which), "index out of bounds"); | |
87 return &float_base()[which]; | |
88 } | |
89 | |
90 jdouble* double_at_addr(int which) const { | |
91 assert(is_within_bounds(which), "index out of bounds"); | |
92 return &double_base()[which]; | |
93 } | |
94 | |
95 jbyte byte_at(int which) const { return *byte_at_addr(which); } | |
96 void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; } | |
97 | |
98 jboolean bool_at(int which) const { return *bool_at_addr(which); } | |
99 void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; } | |
100 | |
101 jchar char_at(int which) const { return *char_at_addr(which); } | |
102 void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; } | |
103 | |
104 jint int_at(int which) const { return *int_at_addr(which); } | |
105 void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; } | |
106 | |
107 jshort short_at(int which) const { return *short_at_addr(which); } | |
108 void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; } | |
109 | |
110 jushort ushort_at(int which) const { return *ushort_at_addr(which); } | |
111 void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; } | |
112 | |
113 jlong long_at(int which) const { return *long_at_addr(which); } | |
114 void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; } | |
115 | |
116 jfloat float_at(int which) const { return *float_at_addr(which); } | |
117 void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; } | |
118 | |
119 jdouble double_at(int which) const { return *double_at_addr(which); } | |
120 void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; } | |
121 | |
122 jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); } | |
123 void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); } | |
124 | |
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125 // Java thinks metadata arrays are just arrays of either long or int, since |
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126 // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate |
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127 // casting |
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128 #ifdef _LP64 |
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129 Metadata* metadata_at(int which) const { |
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130 return (Metadata*)*long_at_addr(which); } |
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131 void metadata_at_put(int which, Metadata* contents) { |
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132 *long_at_addr(which) = (long)contents; |
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133 } |
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134 #else |
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135 Metadata* metadata_at(int which) const { |
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136 return (Metadata*)*int_at_addr(which); } |
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137 void metadata_at_put(int which, Metadata* contents) { |
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138 *int_at_addr(which) = (int)contents; |
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139 } |
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140 #endif // _LP64 |
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141 |
0 | 142 // Sizing |
143 | |
144 // Returns the number of words necessary to hold an array of "len" | |
145 // elements each of the given "byte_size". | |
146 private: | |
147 static int object_size(int lh, int length) { | |
148 int instance_header_size = Klass::layout_helper_header_size(lh); | |
149 int element_shift = Klass::layout_helper_log2_element_size(lh); | |
150 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh)); | |
151 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow"); | |
152 | |
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153 julong size_in_bytes = (juint)length; |
0 | 154 size_in_bytes <<= element_shift; |
155 size_in_bytes += instance_header_size; | |
156 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize); | |
157 assert(size_in_words <= (julong)max_jint, "no overflow"); | |
158 | |
159 return align_object_size((intptr_t)size_in_words); | |
160 } | |
161 | |
162 public: | |
163 int object_size() { | |
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164 TypeArrayKlass* tk = TypeArrayKlass::cast(klass()); |
0 | 165 return object_size(tk->layout_helper(), length()); |
166 } | |
167 }; | |
1972 | 168 |
169 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP |