Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.hpp @ 1067:ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
Summary: Add serviceability support for uint64_t. Flags of unknown type assert in debug builds and are ignored in product builds.
Reviewed-by: never, xlu, mchung, dcubed
author | phh |
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date | Wed, 04 Nov 2009 16:49:23 -0500 |
parents | ad8c8ca4ab0f |
children | 6223633ce7dd 2338d41fbd81 |
rev | line source |
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0 | 1 /* |
470 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // A JavaCallWrapper is constructed before each JavaCall and destructed after the call. | |
26 // Its purpose is to allocate/deallocate a new handle block and to save/restore the last | |
27 // Java fp/sp. A pointer to the JavaCallWrapper is stored on the stack. | |
28 | |
29 class JavaCallWrapper: StackObj { | |
30 friend class VMStructs; | |
31 private: | |
32 JavaThread* _thread; // the thread to which this call belongs | |
33 JNIHandleBlock* _handles; // the saved handle block | |
34 methodOop _callee_method; // to be able to collect arguments if entry frame is top frame | |
35 oop _receiver; // the receiver of the call (if a non-static call) | |
36 | |
37 JavaFrameAnchor _anchor; // last thread anchor state that we must restore | |
38 | |
39 JavaValue* _result; // result value | |
40 | |
41 public: | |
42 // Construction/destruction | |
43 JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS); | |
44 ~JavaCallWrapper(); | |
45 | |
46 // Accessors | |
47 JavaThread* thread() const { return _thread; } | |
48 JNIHandleBlock* handles() const { return _handles; } | |
49 | |
50 JavaFrameAnchor* anchor(void) { return &_anchor; } | |
51 | |
52 JavaValue* result() const { return _result; } | |
53 // GC support | |
54 methodOop callee_method() { return _callee_method; } | |
55 oop receiver() { return _receiver; } | |
56 void oops_do(OopClosure* f); | |
57 | |
58 }; | |
59 | |
60 | |
61 // Encapsulates arguments to a JavaCall (faster, safer, and more convenient than using var-args) | |
62 class JavaCallArguments : public StackObj { | |
63 private: | |
64 enum Constants { | |
65 _default_size = 8 // Must be at least # of arguments in JavaCalls methods | |
66 }; | |
67 | |
68 intptr_t _value_buffer [_default_size + 1]; | |
69 intptr_t _parameter_buffer [_default_size*2 + 1]; | |
70 bool _is_oop_buffer[_default_size + 1]; | |
71 | |
72 intptr_t* _value; | |
73 intptr_t* _parameters; | |
74 bool* _is_oop; | |
75 int _size; | |
76 int _max_size; | |
77 bool _start_at_zero; // Support late setting of receiver | |
78 | |
79 void initialize() { | |
80 // Starts at first element to support set_receiver. | |
81 _value = &_value_buffer[1]; | |
82 _is_oop = &_is_oop_buffer[1]; | |
83 | |
84 _parameters = &_parameter_buffer[0]; | |
85 _max_size = _default_size; | |
86 _size = 0; | |
87 _start_at_zero = false; | |
88 } | |
89 | |
90 public: | |
91 JavaCallArguments() { initialize(); } | |
92 | |
93 JavaCallArguments(Handle receiver) { | |
94 initialize(); | |
95 push_oop(receiver); | |
96 } | |
97 | |
98 JavaCallArguments(int max_size) { | |
99 if (max_size > _default_size) { | |
100 _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1); | |
101 _is_oop = NEW_RESOURCE_ARRAY(bool, max_size + 1); | |
102 if (TaggedStackInterpreter) { | |
103 _parameters = NEW_RESOURCE_ARRAY(intptr_t, max_size*2 + 1); | |
104 } | |
105 // Reserve room for potential receiver in value and is_oop | |
106 _value++; _is_oop++; | |
107 _max_size = max_size; | |
108 _size = 0; | |
109 _start_at_zero = false; | |
110 } else { | |
111 initialize(); | |
112 } | |
113 } | |
114 | |
115 inline void push_oop(Handle h) { _is_oop[_size] = true; | |
116 JNITypes::put_obj((oop)h.raw_value(), _value, _size); } | |
117 | |
118 inline void push_int(int i) { _is_oop[_size] = false; | |
119 JNITypes::put_int(i, _value, _size); } | |
120 | |
121 inline void push_double(double d) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
122 JNITypes::put_double(d, _value, _size); } | |
123 | |
124 inline void push_long(jlong l) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
125 JNITypes::put_long(l, _value, _size); } | |
126 | |
127 inline void push_float(float f) { _is_oop[_size] = false; | |
128 JNITypes::put_float(f, _value, _size); } | |
129 | |
130 // receiver | |
131 Handle receiver() { | |
132 assert(_size > 0, "must at least be one argument"); | |
133 assert(_is_oop[0], "first argument must be an oop"); | |
134 assert(_value[0] != 0, "receiver must be not-null"); | |
135 return Handle((oop*)_value[0], false); | |
136 } | |
137 | |
138 void set_receiver(Handle h) { | |
139 assert(_start_at_zero == false, "can only be called once"); | |
140 _start_at_zero = true; | |
141 _is_oop--; | |
142 _value--; | |
143 _size++; | |
144 _is_oop[0] = true; | |
145 _value[0] = (intptr_t)h.raw_value(); | |
146 } | |
147 | |
148 // Converts all Handles to oops, and returns a reference to parameter vector | |
149 intptr_t* parameters() ; | |
150 int size_of_parameters() const { return _size; } | |
151 | |
152 // Verify that pushed arguments fits a given method | |
465
dc16daa0329d
6739363: Xcheck jni doesn't check native function arguments
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153 void verify(methodHandle method, BasicType return_type, Thread *thread); |
0 | 154 }; |
155 | |
156 // All calls to Java have to go via JavaCalls. Sets up the stack frame | |
157 // and makes sure that the last_Java_frame pointers are chained correctly. | |
158 // | |
159 | |
160 class JavaCalls: AllStatic { | |
161 static void call_helper(JavaValue* result, methodHandle* method, JavaCallArguments* args, TRAPS); | |
162 public: | |
163 // Optimized Constuctor call | |
164 static void call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS); | |
165 | |
166 // call_special | |
167 // ------------ | |
168 // The receiver must be first oop in argument list | |
169 static void call_special(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, JavaCallArguments* args, TRAPS); | |
170 | |
171 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS); // No args | |
172 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, TRAPS); | |
173 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, Handle arg2, TRAPS); | |
174 | |
175 // virtual call | |
176 // ------------ | |
177 | |
178 // The receiver must be first oop in argument list | |
179 static void call_virtual(JavaValue* result, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, JavaCallArguments* args, TRAPS); | |
180 | |
181 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, TRAPS); // No args | |
182 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, Handle arg1, TRAPS); | |
183 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, symbolHandle name, symbolHandle signature, Handle arg1, Handle arg2, TRAPS); | |
184 | |
185 // Static call | |
186 // ----------- | |
187 static void call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, JavaCallArguments* args, TRAPS); | |
188 | |
189 static void call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS); | |
190 static void call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, TRAPS); | |
191 static void call_static(JavaValue* result, KlassHandle klass, symbolHandle name, symbolHandle signature, Handle arg1, Handle arg2, TRAPS); | |
192 | |
193 // Low-level interface | |
194 static void call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS); | |
195 }; |