Mercurial > hg > truffle
comparison src/share/vm/graal/graalVmIds.hpp @ 2890:c23d45daff9b
Renamed cpp/hpp file directory.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 08 Jun 2011 13:40:25 +0200 |
parents | src/share/vm/c1x/graalVmIds.hpp@2fb867285938 |
children | f00918f35c7f |
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2889:2fb867285938 | 2890:c23d45daff9b |
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1 /* | |
2 * Copyright (c) 2011, 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 | |
24 #include "memory/allocation.hpp" | |
25 #include "utilities/growableArray.hpp" | |
26 #include "oops/oop.hpp" | |
27 #include "runtime/handles.hpp" | |
28 #include "runtime/thread.hpp" | |
29 #include "classfile/javaClasses.hpp" | |
30 #include "runtime/jniHandles.hpp" | |
31 | |
32 class VmIds : public AllStatic { | |
33 | |
34 private: | |
35 static GrowableArray<address>* _stubs; | |
36 static GrowableArray<jobject>* _localHandles; | |
37 | |
38 static oop getObject(jlong id); | |
39 | |
40 public: | |
41 // these constants needs to have the same values as the one in HotSpotProxy.java | |
42 static const jlong STUB = 0x100000000000000LL; // address | |
43 static const jlong METHOD = 0x200000000000000LL; // methodOop | |
44 static const jlong CLASS = 0x300000000000000LL; // klassOop | |
45 static const jlong CONSTANT_POOL = 0x500000000000000LL; // constantPoolOop | |
46 static const jlong CONSTANT = 0x600000000000000LL; // oop | |
47 static const jlong TYPE_MASK = 0xf00000000000000LL; | |
48 static const jlong DUMMY_CONSTANT = 0x6ffffffffffffffLL; | |
49 | |
50 // Initializes the VmIds for a compilation, by creating the arrays | |
51 static void initializeObjects(); | |
52 // Cleans up after a compilation, by deallocating the arrays | |
53 static void cleanupLocalObjects(); | |
54 | |
55 // Adds a stub address, and returns the corresponding vmId (which is of type STUB) | |
56 static jlong addStub(address stub); | |
57 | |
58 // Adds an object, and returns the corresponding vmId (with the given type) | |
59 static jlong add(Handle obj, jlong type); | |
60 | |
61 // Adds an object, and returns the corresponding vmId (the type of which is determined by the template parameter) | |
62 template <typename T> static jlong add(T obj); | |
63 | |
64 | |
65 // Returns the stub address with the given vmId | |
66 static address getStub(jlong id); | |
67 // Returns the stub address with the given vmId taken from a java.lang.Long | |
68 static address getStub(oop id); | |
69 | |
70 // Returns the object with the given id, the return type is defined by the template parameter (which must correspond to the actual type of the vmId) | |
71 template <typename T> static T get(jlong id); | |
72 | |
73 | |
74 // Helper function to convert a symbol to a java.lang.String object | |
75 template <typename T> static T toString(Symbol* symbol, TRAPS); | |
76 | |
77 // Helper function to convert a java.lang.String object to a symbol (this will return NULL if the symbol doesn't exist in the system) | |
78 static Symbol* toSymbol(jstring string); | |
79 | |
80 // Helper function to get the contents of a java.lang.Long | |
81 static jlong getBoxedLong(oop obj); | |
82 }; | |
83 | |
84 | |
85 template <> inline jlong VmIds::add<methodOop>(methodOop obj){ | |
86 assert(obj != NULL, "trying to add NULL<methodOop>"); | |
87 assert(obj->is_method(), "trying to add mistyped object"); | |
88 return add(Handle(obj), METHOD); | |
89 } | |
90 template <> inline jlong VmIds::add<klassOop>(klassOop obj) { | |
91 assert(obj != NULL, "trying to add NULL<klassOop>"); | |
92 assert(obj->is_klass(), "trying to add mistyped object"); | |
93 return add(Handle(obj), CLASS); | |
94 } | |
95 template <> inline jlong VmIds::add<constantPoolOop>(constantPoolOop obj) { | |
96 assert(obj != NULL, "trying to add NULL<constantPoolOop>"); | |
97 assert(obj->is_constantPool(), "trying to add mistyped object"); | |
98 return add(Handle(obj), CONSTANT_POOL); | |
99 } | |
100 template <> inline jlong VmIds::add<oop>(oop obj) { | |
101 assert(obj != NULL, "trying to add NULL<oop>"); | |
102 assert(obj->is_oop(), "trying to add mistyped object"); | |
103 return add(Handle(obj), CONSTANT); | |
104 } | |
105 | |
106 | |
107 template <> inline methodOop VmIds::get<methodOop>(jlong id){ | |
108 assert((id & TYPE_MASK) == METHOD, "METHOD expected"); | |
109 assert(getObject(id)->is_method(), "methodOop expected"); | |
110 return (methodOop)getObject(id); | |
111 } | |
112 template <> inline klassOop VmIds::get<klassOop>(jlong id) { | |
113 assert((id & TYPE_MASK) == CLASS, "CLASS expected"); | |
114 assert(getObject(id)->is_klass(), "klassOop expected"); | |
115 return (klassOop)getObject(id); | |
116 } | |
117 template <> inline constantPoolOop VmIds::get<constantPoolOop>(jlong id) { | |
118 assert((id & TYPE_MASK) == CONSTANT_POOL, "CONSTANT_POOL expected"); | |
119 assert(getObject(id)->is_constantPool(), "constantPoolOop expected"); | |
120 return (constantPoolOop)getObject(id); | |
121 } | |
122 template <> inline oop VmIds::get<oop>(jlong id) { | |
123 assert((id & TYPE_MASK) == CONSTANT, "CONSTANT expected"); | |
124 assert(getObject(id)->is_oop(true), "oop expected"); | |
125 return (oop)getObject(id); | |
126 } | |
127 | |
128 inline address VmIds::getStub(oop obj) { | |
129 return getStub(getBoxedLong(obj)); | |
130 } | |
131 | |
132 template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) { | |
133 return java_lang_String::create_from_symbol(symbol, THREAD); | |
134 } | |
135 template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) { | |
136 return toString<Handle>(symbol, THREAD)(); | |
137 } | |
138 template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) { | |
139 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD)); | |
140 } | |
141 template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) { | |
142 return JNIHandles::make_local(toString<oop>(symbol, THREAD)); | |
143 } | |
144 | |
145 inline Symbol* VmIds::toSymbol(jstring string) { | |
146 return java_lang_String::as_symbol_or_null(JNIHandles::resolve(string)); | |
147 } | |
148 | |
149 inline jlong VmIds::getBoxedLong(oop obj) { | |
150 assert(obj->is_oop(true), "cannot unbox null or non-oop"); | |
151 return obj->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG)); | |
152 } |