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annotate src/share/vm/oops/typeArrayOop.hpp @ 14694:58cf34613a72
8036976: PPC64: implement the template interpreter
Reviewed-by: kvn, coleenp
Contributed-by: axel.siebenborn@sap.com, martin.doerr@sap.com
author | goetz |
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date | Mon, 10 Mar 2014 12:58:02 +0100 |
parents | bdd155477289 |
children | 4ca6dc0799b6 ce8f6bb717c9 |
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" | |
30 #ifdef TARGET_OS_ARCH_linux_x86 | |
31 # include "orderAccess_linux_x86.inline.hpp" | |
32 #endif | |
33 #ifdef TARGET_OS_ARCH_linux_sparc | |
34 # include "orderAccess_linux_sparc.inline.hpp" | |
35 #endif | |
36 #ifdef TARGET_OS_ARCH_linux_zero | |
37 # include "orderAccess_linux_zero.inline.hpp" | |
38 #endif | |
39 #ifdef TARGET_OS_ARCH_solaris_x86 | |
40 # include "orderAccess_solaris_x86.inline.hpp" | |
41 #endif | |
42 #ifdef TARGET_OS_ARCH_solaris_sparc | |
43 # include "orderAccess_solaris_sparc.inline.hpp" | |
44 #endif | |
45 #ifdef TARGET_OS_ARCH_windows_x86 | |
46 # include "orderAccess_windows_x86.inline.hpp" | |
47 #endif | |
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48 #ifdef TARGET_OS_ARCH_linux_arm |
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49 # include "orderAccess_linux_arm.inline.hpp" |
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50 #endif |
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51 #ifdef TARGET_OS_ARCH_linux_ppc |
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52 # include "orderAccess_linux_ppc.inline.hpp" |
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53 #endif |
14411 | 54 #ifdef TARGET_OS_ARCH_aix_ppc |
55 # include "orderAccess_aix_ppc.inline.hpp" | |
56 #endif | |
3960 | 57 #ifdef TARGET_OS_ARCH_bsd_x86 |
58 # include "orderAccess_bsd_x86.inline.hpp" | |
59 #endif | |
60 #ifdef TARGET_OS_ARCH_bsd_zero | |
61 # include "orderAccess_bsd_zero.inline.hpp" | |
62 #endif | |
1972 | 63 |
0 | 64 // A typeArrayOop is an array containing basic types (non oop elements). |
65 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs} | |
66 #include <limits.h> | |
67 | |
68 class typeArrayOopDesc : public arrayOopDesc { | |
69 protected: | |
70 jchar* char_base() const { return (jchar*) base(T_CHAR); } | |
71 jboolean* bool_base() const { return (jboolean*)base(T_BOOLEAN); } | |
72 jbyte* byte_base() const { return (jbyte*) base(T_BYTE); } | |
73 jint* int_base() const { return (jint*) base(T_INT); } | |
74 jlong* long_base() const { return (jlong*) base(T_LONG); } | |
75 jshort* short_base() const { return (jshort*) base(T_SHORT); } | |
76 jfloat* float_base() const { return (jfloat*) base(T_FLOAT); } | |
77 jdouble* double_base() const { return (jdouble*) base(T_DOUBLE); } | |
78 | |
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79 friend class TypeArrayKlass; |
0 | 80 |
81 public: | |
82 jbyte* byte_at_addr(int which) const { | |
83 assert(is_within_bounds(which), "index out of bounds"); | |
84 return &byte_base()[which]; | |
85 } | |
86 | |
87 jboolean* bool_at_addr(int which) const { | |
88 assert(is_within_bounds(which), "index out of bounds"); | |
89 return &bool_base()[which]; | |
90 } | |
91 | |
92 jchar* char_at_addr(int which) const { | |
93 assert(is_within_bounds(which), "index out of bounds"); | |
94 return &char_base()[which]; | |
95 } | |
96 | |
97 jint* int_at_addr(int which) const { | |
98 assert(is_within_bounds(which), "index out of bounds"); | |
99 return &int_base()[which]; | |
100 } | |
101 | |
102 jshort* short_at_addr(int which) const { | |
103 assert(is_within_bounds(which), "index out of bounds"); | |
104 return &short_base()[which]; | |
105 } | |
106 | |
107 jushort* ushort_at_addr(int which) const { // for field descriptor arrays | |
108 assert(is_within_bounds(which), "index out of bounds"); | |
109 return (jushort*) &short_base()[which]; | |
110 } | |
111 | |
112 jlong* long_at_addr(int which) const { | |
113 assert(is_within_bounds(which), "index out of bounds"); | |
114 return &long_base()[which]; | |
115 } | |
116 | |
117 jfloat* float_at_addr(int which) const { | |
118 assert(is_within_bounds(which), "index out of bounds"); | |
119 return &float_base()[which]; | |
120 } | |
121 | |
122 jdouble* double_at_addr(int which) const { | |
123 assert(is_within_bounds(which), "index out of bounds"); | |
124 return &double_base()[which]; | |
125 } | |
126 | |
127 jbyte byte_at(int which) const { return *byte_at_addr(which); } | |
128 void byte_at_put(int which, jbyte contents) { *byte_at_addr(which) = contents; } | |
129 | |
130 jboolean bool_at(int which) const { return *bool_at_addr(which); } | |
131 void bool_at_put(int which, jboolean contents) { *bool_at_addr(which) = contents; } | |
132 | |
133 jchar char_at(int which) const { return *char_at_addr(which); } | |
134 void char_at_put(int which, jchar contents) { *char_at_addr(which) = contents; } | |
135 | |
136 jint int_at(int which) const { return *int_at_addr(which); } | |
137 void int_at_put(int which, jint contents) { *int_at_addr(which) = contents; } | |
138 | |
139 jshort short_at(int which) const { return *short_at_addr(which); } | |
140 void short_at_put(int which, jshort contents) { *short_at_addr(which) = contents; } | |
141 | |
142 jushort ushort_at(int which) const { return *ushort_at_addr(which); } | |
143 void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; } | |
144 | |
145 jlong long_at(int which) const { return *long_at_addr(which); } | |
146 void long_at_put(int which, jlong contents) { *long_at_addr(which) = contents; } | |
147 | |
148 jfloat float_at(int which) const { return *float_at_addr(which); } | |
149 void float_at_put(int which, jfloat contents) { *float_at_addr(which) = contents; } | |
150 | |
151 jdouble double_at(int which) const { return *double_at_addr(which); } | |
152 void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; } | |
153 | |
154 jbyte byte_at_acquire(int which) const { return OrderAccess::load_acquire(byte_at_addr(which)); } | |
155 void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); } | |
156 | |
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157 // Java thinks metadata arrays are just arrays of either long or int, since |
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158 // there doesn't seem to be T_ADDRESS, so this is a bit of unfortunate |
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159 // casting |
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160 #ifdef _LP64 |
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161 Metadata* metadata_at(int which) const { |
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162 return (Metadata*)*long_at_addr(which); } |
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163 void metadata_at_put(int which, Metadata* contents) { |
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164 *long_at_addr(which) = (long)contents; |
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165 } |
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166 #else |
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167 Metadata* metadata_at(int which) const { |
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168 return (Metadata*)*int_at_addr(which); } |
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169 void metadata_at_put(int which, Metadata* contents) { |
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170 *int_at_addr(which) = (int)contents; |
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171 } |
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172 #endif // _LP64 |
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173 |
0 | 174 // Sizing |
175 | |
176 // Returns the number of words necessary to hold an array of "len" | |
177 // elements each of the given "byte_size". | |
178 private: | |
179 static int object_size(int lh, int length) { | |
180 int instance_header_size = Klass::layout_helper_header_size(lh); | |
181 int element_shift = Klass::layout_helper_log2_element_size(lh); | |
182 DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh)); | |
183 assert(length <= arrayOopDesc::max_array_length(etype), "no overflow"); | |
184 | |
185 julong size_in_bytes = length; | |
186 size_in_bytes <<= element_shift; | |
187 size_in_bytes += instance_header_size; | |
188 julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize); | |
189 assert(size_in_words <= (julong)max_jint, "no overflow"); | |
190 | |
191 return align_object_size((intptr_t)size_in_words); | |
192 } | |
193 | |
194 public: | |
195 int object_size() { | |
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196 TypeArrayKlass* tk = TypeArrayKlass::cast(klass()); |
0 | 197 return object_size(tk->layout_helper(), length()); |
198 } | |
199 }; | |
1972 | 200 |
201 #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP |