Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.hpp @ 6038:8bafad97cd26
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
Summary: Change the _host_klass to be conditionally created embedded instanceKlass field.
Reviewed-by: jrose, coleenp, dholmes
author | jiangli |
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date | Wed, 02 May 2012 13:21:36 -0400 |
parents | f08d439fab8c |
children | 04b9a2566eec da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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_RUNTIME_JAVACALLS_HPP |
26 #define SHARE_VM_RUNTIME_JAVACALLS_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "oops/methodOop.hpp" | |
30 #include "runtime/handles.hpp" | |
31 #include "runtime/javaFrameAnchor.hpp" | |
32 #include "runtime/vmThread.hpp" | |
33 #ifdef TARGET_ARCH_x86 | |
34 # include "jniTypes_x86.hpp" | |
35 #endif | |
36 #ifdef TARGET_ARCH_sparc | |
37 # include "jniTypes_sparc.hpp" | |
38 #endif | |
39 #ifdef TARGET_ARCH_zero | |
40 # include "jniTypes_zero.hpp" | |
41 #endif | |
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42 #ifdef TARGET_ARCH_arm |
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43 # include "jniTypes_arm.hpp" |
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44 #endif |
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45 #ifdef TARGET_ARCH_ppc |
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46 # include "jniTypes_ppc.hpp" |
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47 #endif |
1972 | 48 #ifdef TARGET_OS_FAMILY_linux |
49 # include "thread_linux.inline.hpp" | |
50 #endif | |
51 #ifdef TARGET_OS_FAMILY_solaris | |
52 # include "thread_solaris.inline.hpp" | |
53 #endif | |
54 #ifdef TARGET_OS_FAMILY_windows | |
55 # include "thread_windows.inline.hpp" | |
56 #endif | |
3960 | 57 #ifdef TARGET_OS_FAMILY_bsd |
58 # include "thread_bsd.inline.hpp" | |
59 #endif | |
1972 | 60 |
0 | 61 // A JavaCallWrapper is constructed before each JavaCall and destructed after the call. |
62 // Its purpose is to allocate/deallocate a new handle block and to save/restore the last | |
63 // Java fp/sp. A pointer to the JavaCallWrapper is stored on the stack. | |
64 | |
65 class JavaCallWrapper: StackObj { | |
66 friend class VMStructs; | |
67 private: | |
68 JavaThread* _thread; // the thread to which this call belongs | |
69 JNIHandleBlock* _handles; // the saved handle block | |
70 methodOop _callee_method; // to be able to collect arguments if entry frame is top frame | |
71 oop _receiver; // the receiver of the call (if a non-static call) | |
72 | |
73 JavaFrameAnchor _anchor; // last thread anchor state that we must restore | |
74 | |
75 JavaValue* _result; // result value | |
76 | |
77 public: | |
78 // Construction/destruction | |
79 JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS); | |
80 ~JavaCallWrapper(); | |
81 | |
82 // Accessors | |
83 JavaThread* thread() const { return _thread; } | |
84 JNIHandleBlock* handles() const { return _handles; } | |
85 | |
86 JavaFrameAnchor* anchor(void) { return &_anchor; } | |
87 | |
88 JavaValue* result() const { return _result; } | |
89 // GC support | |
90 methodOop callee_method() { return _callee_method; } | |
91 oop receiver() { return _receiver; } | |
92 void oops_do(OopClosure* f); | |
93 | |
94 }; | |
95 | |
96 | |
97 // Encapsulates arguments to a JavaCall (faster, safer, and more convenient than using var-args) | |
98 class JavaCallArguments : public StackObj { | |
99 private: | |
100 enum Constants { | |
101 _default_size = 8 // Must be at least # of arguments in JavaCalls methods | |
102 }; | |
103 | |
104 intptr_t _value_buffer [_default_size + 1]; | |
105 bool _is_oop_buffer[_default_size + 1]; | |
106 | |
107 intptr_t* _value; | |
108 bool* _is_oop; | |
109 int _size; | |
110 int _max_size; | |
111 bool _start_at_zero; // Support late setting of receiver | |
112 | |
113 void initialize() { | |
114 // Starts at first element to support set_receiver. | |
115 _value = &_value_buffer[1]; | |
116 _is_oop = &_is_oop_buffer[1]; | |
117 | |
118 _max_size = _default_size; | |
119 _size = 0; | |
120 _start_at_zero = false; | |
121 } | |
122 | |
123 public: | |
124 JavaCallArguments() { initialize(); } | |
125 | |
126 JavaCallArguments(Handle receiver) { | |
127 initialize(); | |
128 push_oop(receiver); | |
129 } | |
130 | |
131 JavaCallArguments(int max_size) { | |
132 if (max_size > _default_size) { | |
133 _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1); | |
134 _is_oop = NEW_RESOURCE_ARRAY(bool, max_size + 1); | |
1506 | 135 |
0 | 136 // Reserve room for potential receiver in value and is_oop |
137 _value++; _is_oop++; | |
1506 | 138 |
0 | 139 _max_size = max_size; |
140 _size = 0; | |
141 _start_at_zero = false; | |
142 } else { | |
143 initialize(); | |
144 } | |
145 } | |
146 | |
147 inline void push_oop(Handle h) { _is_oop[_size] = true; | |
148 JNITypes::put_obj((oop)h.raw_value(), _value, _size); } | |
149 | |
150 inline void push_int(int i) { _is_oop[_size] = false; | |
151 JNITypes::put_int(i, _value, _size); } | |
152 | |
153 inline void push_double(double d) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
154 JNITypes::put_double(d, _value, _size); } | |
155 | |
156 inline void push_long(jlong l) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
157 JNITypes::put_long(l, _value, _size); } | |
158 | |
159 inline void push_float(float f) { _is_oop[_size] = false; | |
160 JNITypes::put_float(f, _value, _size); } | |
161 | |
162 // receiver | |
163 Handle receiver() { | |
164 assert(_size > 0, "must at least be one argument"); | |
165 assert(_is_oop[0], "first argument must be an oop"); | |
166 assert(_value[0] != 0, "receiver must be not-null"); | |
167 return Handle((oop*)_value[0], false); | |
168 } | |
169 | |
170 void set_receiver(Handle h) { | |
171 assert(_start_at_zero == false, "can only be called once"); | |
172 _start_at_zero = true; | |
173 _is_oop--; | |
174 _value--; | |
175 _size++; | |
176 _is_oop[0] = true; | |
177 _value[0] = (intptr_t)h.raw_value(); | |
178 } | |
179 | |
180 // Converts all Handles to oops, and returns a reference to parameter vector | |
181 intptr_t* parameters() ; | |
182 int size_of_parameters() const { return _size; } | |
183 | |
184 // Verify that pushed arguments fits a given method | |
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185 void verify(methodHandle method, BasicType return_type, Thread *thread); |
0 | 186 }; |
187 | |
188 // All calls to Java have to go via JavaCalls. Sets up the stack frame | |
189 // and makes sure that the last_Java_frame pointers are chained correctly. | |
190 // | |
191 | |
192 class JavaCalls: AllStatic { | |
193 static void call_helper(JavaValue* result, methodHandle* method, JavaCallArguments* args, TRAPS); | |
194 public: | |
195 // Optimized Constuctor call | |
196 static void call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS); | |
197 | |
198 // call_special | |
199 // ------------ | |
200 // The receiver must be first oop in argument list | |
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201 static void call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
0 | 202 |
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203 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); // No args |
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204 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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205 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
0 | 206 |
207 // virtual call | |
208 // ------------ | |
209 | |
210 // The receiver must be first oop in argument list | |
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211 static void call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
0 | 212 |
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213 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS); // No args |
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214 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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215 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
0 | 216 |
217 // Static call | |
218 // ----------- | |
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219 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
0 | 220 |
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221 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); |
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222 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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223 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
0 | 224 |
225 // Low-level interface | |
226 static void call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS); | |
227 }; | |
1972 | 228 |
229 #endif // SHARE_VM_RUNTIME_JAVACALLS_HPP |