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comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotJVMCIRuntimeProvider.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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children 48c1ebd24120
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21550:f48a6cea31eb 21551:5324104ac4f3
1 /*
2 * Copyright (c) 2015, 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 package com.oracle.jvmci.hotspot;
24
25 import sun.misc.*;
26
27 import com.oracle.graal.api.meta.*;
28 import com.oracle.jvmci.common.*;
29 import com.oracle.jvmci.runtime.*;
30
31 //JaCoCo Exclude
32
33 /**
34 * Configuration information for the HotSpot Graal runtime.
35 */
36 public interface HotSpotJVMCIRuntimeProvider extends JVMCIRuntime {
37
38 HotSpotVMConfig getConfig();
39
40 CompilerToVM getCompilerToVM();
41
42 /**
43 * Converts a name to a Java type. This method attempts to resolve {@code name} to a
44 * {@link ResolvedJavaType}.
45 *
46 * @param name a well formed Java type in {@linkplain JavaType#getName() internal} format
47 * @param accessingType the context of resolution which must be non-null
48 * @param resolve specifies whether resolution failure results in an unresolved type being
49 * return or a {@link LinkageError} being thrown
50 * @return a Java type for {@code name} which is guaranteed to be of type
51 * {@link ResolvedJavaType} if {@code resolve == true}
52 * @throws LinkageError if {@code resolve == true} and the resolution failed
53 * @throws NullPointerException if {@code accessingClass} is {@code null}
54 */
55 JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve);
56
57 /**
58 * Gets the Graal mirror for a {@link Class} object.
59 *
60 * @return the {@link ResolvedJavaType} corresponding to {@code javaClass}
61 */
62 ResolvedJavaType fromClass(Class<?> clazz);
63
64 /**
65 * The offset from the origin of an array to the first element.
66 *
67 * @return the offset in bytes
68 */
69 default int getArrayBaseOffset(Kind kind) {
70 switch (kind) {
71 case Boolean:
72 return Unsafe.ARRAY_BOOLEAN_BASE_OFFSET;
73 case Byte:
74 return Unsafe.ARRAY_BYTE_BASE_OFFSET;
75 case Char:
76 return Unsafe.ARRAY_CHAR_BASE_OFFSET;
77 case Short:
78 return Unsafe.ARRAY_SHORT_BASE_OFFSET;
79 case Int:
80 return Unsafe.ARRAY_INT_BASE_OFFSET;
81 case Long:
82 return Unsafe.ARRAY_LONG_BASE_OFFSET;
83 case Float:
84 return Unsafe.ARRAY_FLOAT_BASE_OFFSET;
85 case Double:
86 return Unsafe.ARRAY_DOUBLE_BASE_OFFSET;
87 case Object:
88 return Unsafe.ARRAY_OBJECT_BASE_OFFSET;
89 default:
90 throw new JVMCIError("%s", kind);
91 }
92 }
93
94 /**
95 * The scale used for the index when accessing elements of an array of this kind.
96 *
97 * @return the scale in order to convert the index into a byte offset
98 */
99 default int getArrayIndexScale(Kind kind) {
100 switch (kind) {
101 case Boolean:
102 return Unsafe.ARRAY_BOOLEAN_INDEX_SCALE;
103 case Byte:
104 return Unsafe.ARRAY_BYTE_INDEX_SCALE;
105 case Char:
106 return Unsafe.ARRAY_CHAR_INDEX_SCALE;
107 case Short:
108 return Unsafe.ARRAY_SHORT_INDEX_SCALE;
109 case Int:
110 return Unsafe.ARRAY_INT_INDEX_SCALE;
111 case Long:
112 return Unsafe.ARRAY_LONG_INDEX_SCALE;
113 case Float:
114 return Unsafe.ARRAY_FLOAT_INDEX_SCALE;
115 case Double:
116 return Unsafe.ARRAY_DOUBLE_INDEX_SCALE;
117 case Object:
118 return Unsafe.ARRAY_OBJECT_INDEX_SCALE;
119 default:
120 throw new JVMCIError("%s", kind);
121 }
122 }
123 }