Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.hpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | e522a00b91aa f34d701e952e |
| children | b8f261ba79c6 |
| 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_RUNTIME_JAVACALLS_HPP |
| 26 #define SHARE_VM_RUNTIME_JAVACALLS_HPP | |
| 27 | |
| 28 #include "memory/allocation.hpp" | |
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29 #include "oops/method.hpp" |
| 1972 | 30 #include "runtime/handles.hpp" |
| 31 #include "runtime/javaFrameAnchor.hpp" | |
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32 #include "runtime/thread.inline.hpp" |
| 1972 | 33 #include "runtime/vmThread.hpp" |
| 34 #ifdef TARGET_ARCH_x86 | |
| 35 # include "jniTypes_x86.hpp" | |
| 36 #endif | |
| 37 #ifdef TARGET_ARCH_sparc | |
| 38 # include "jniTypes_sparc.hpp" | |
| 39 #endif | |
| 40 #ifdef TARGET_ARCH_zero | |
| 41 # include "jniTypes_zero.hpp" | |
| 42 #endif | |
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43 #ifdef TARGET_ARCH_arm |
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44 # include "jniTypes_arm.hpp" |
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45 #endif |
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46 #ifdef TARGET_ARCH_ppc |
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47 # include "jniTypes_ppc.hpp" |
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48 #endif |
| 1972 | 49 |
| 0 | 50 // A JavaCallWrapper is constructed before each JavaCall and destructed after the call. |
| 51 // Its purpose is to allocate/deallocate a new handle block and to save/restore the last | |
| 52 // Java fp/sp. A pointer to the JavaCallWrapper is stored on the stack. | |
| 53 | |
| 54 class JavaCallWrapper: StackObj { | |
| 55 friend class VMStructs; | |
| 56 private: | |
| 57 JavaThread* _thread; // the thread to which this call belongs | |
| 58 JNIHandleBlock* _handles; // the saved handle block | |
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59 Method* _callee_method; // to be able to collect arguments if entry frame is top frame |
| 0 | 60 oop _receiver; // the receiver of the call (if a non-static call) |
| 61 | |
| 62 JavaFrameAnchor _anchor; // last thread anchor state that we must restore | |
| 63 | |
| 64 JavaValue* _result; // result value | |
| 65 | |
| 66 public: | |
| 67 // Construction/destruction | |
| 68 JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS); | |
| 69 ~JavaCallWrapper(); | |
| 70 | |
| 71 // Accessors | |
| 72 JavaThread* thread() const { return _thread; } | |
| 73 JNIHandleBlock* handles() const { return _handles; } | |
| 74 | |
| 75 JavaFrameAnchor* anchor(void) { return &_anchor; } | |
| 76 | |
| 77 JavaValue* result() const { return _result; } | |
| 78 // GC support | |
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79 Method* callee_method() { return _callee_method; } |
| 0 | 80 oop receiver() { return _receiver; } |
| 81 void oops_do(OopClosure* f); | |
| 82 | |
| 83 }; | |
| 84 | |
| 85 | |
| 86 // Encapsulates arguments to a JavaCall (faster, safer, and more convenient than using var-args) | |
| 87 class JavaCallArguments : public StackObj { | |
| 88 private: | |
| 89 enum Constants { | |
| 90 _default_size = 8 // Must be at least # of arguments in JavaCalls methods | |
| 91 }; | |
| 92 | |
| 93 intptr_t _value_buffer [_default_size + 1]; | |
| 94 bool _is_oop_buffer[_default_size + 1]; | |
| 95 | |
| 96 intptr_t* _value; | |
| 97 bool* _is_oop; | |
| 98 int _size; | |
| 99 int _max_size; | |
| 100 bool _start_at_zero; // Support late setting of receiver | |
| 101 | |
| 102 void initialize() { | |
| 103 // Starts at first element to support set_receiver. | |
| 104 _value = &_value_buffer[1]; | |
| 105 _is_oop = &_is_oop_buffer[1]; | |
| 106 | |
| 107 _max_size = _default_size; | |
| 108 _size = 0; | |
| 109 _start_at_zero = false; | |
| 110 } | |
| 111 | |
| 112 public: | |
| 113 JavaCallArguments() { initialize(); } | |
| 114 | |
| 115 JavaCallArguments(Handle receiver) { | |
| 116 initialize(); | |
| 117 push_oop(receiver); | |
| 118 } | |
| 119 | |
| 120 JavaCallArguments(int max_size) { | |
| 121 if (max_size > _default_size) { | |
| 122 _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1); | |
| 123 _is_oop = NEW_RESOURCE_ARRAY(bool, max_size + 1); | |
| 1506 | 124 |
| 0 | 125 // Reserve room for potential receiver in value and is_oop |
| 126 _value++; _is_oop++; | |
| 1506 | 127 |
| 0 | 128 _max_size = max_size; |
| 129 _size = 0; | |
| 130 _start_at_zero = false; | |
| 131 } else { | |
| 132 initialize(); | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 inline void push_oop(Handle h) { _is_oop[_size] = true; | |
| 137 JNITypes::put_obj((oop)h.raw_value(), _value, _size); } | |
| 138 | |
| 139 inline void push_int(int i) { _is_oop[_size] = false; | |
| 140 JNITypes::put_int(i, _value, _size); } | |
| 141 | |
| 142 inline void push_double(double d) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
| 143 JNITypes::put_double(d, _value, _size); } | |
| 144 | |
| 145 inline void push_long(jlong l) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
| 146 JNITypes::put_long(l, _value, _size); } | |
| 147 | |
| 148 inline void push_float(float f) { _is_oop[_size] = false; | |
| 149 JNITypes::put_float(f, _value, _size); } | |
| 150 | |
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151 inline oop* get_raw_oop(int& pos) { return (oop*)JNITypes::get_obj(_value, pos); } |
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152 inline jint get_int(int& pos) { return JNITypes::get_int(_value, pos); } |
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153 inline jdouble get_double(int& pos) { return JNITypes::get_double(_value, pos); } |
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154 inline jlong get_long(int& pos) { return JNITypes::get_long(_value, pos); } |
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155 inline jfloat get_float(int& pos) { return JNITypes::get_float(_value, pos); } |
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156 |
| 0 | 157 // receiver |
| 158 Handle receiver() { | |
| 159 assert(_size > 0, "must at least be one argument"); | |
| 160 assert(_is_oop[0], "first argument must be an oop"); | |
| 161 assert(_value[0] != 0, "receiver must be not-null"); | |
| 162 return Handle((oop*)_value[0], false); | |
| 163 } | |
| 164 | |
| 165 void set_receiver(Handle h) { | |
| 166 assert(_start_at_zero == false, "can only be called once"); | |
| 167 _start_at_zero = true; | |
| 168 _is_oop--; | |
| 169 _value--; | |
| 170 _size++; | |
| 171 _is_oop[0] = true; | |
| 172 _value[0] = (intptr_t)h.raw_value(); | |
| 173 } | |
| 174 | |
| 175 // Converts all Handles to oops, and returns a reference to parameter vector | |
| 176 intptr_t* parameters() ; | |
| 177 int size_of_parameters() const { return _size; } | |
| 178 | |
| 179 // Verify that pushed arguments fits a given method | |
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180 void verify(methodHandle method, BasicType return_type, Thread *thread); |
| 0 | 181 }; |
| 182 | |
| 183 // All calls to Java have to go via JavaCalls. Sets up the stack frame | |
| 184 // and makes sure that the last_Java_frame pointers are chained correctly. | |
| 185 // | |
| 186 | |
| 187 class JavaCalls: AllStatic { | |
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188 static void call_helper(JavaValue* result, methodHandle* method, nmethod* nm, JavaCallArguments* args, TRAPS); |
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189 public: |
| 0 | 190 // Optimized Constuctor call |
| 191 static void call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS); | |
| 192 | |
| 193 // call_special | |
| 194 // ------------ | |
| 195 // The receiver must be first oop in argument list | |
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196 static void call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
| 0 | 197 |
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198 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); // No args |
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199 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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200 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
| 0 | 201 |
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202 // interface call |
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203 // ------------ |
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204 |
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205 // The receiver must be first oop in argument list |
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206 static void call_interface(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
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207 |
| 0 | 208 // virtual call |
| 209 // ------------ | |
| 210 | |
| 211 // The receiver must be first oop in argument list | |
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212 static void call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
| 0 | 213 |
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214 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS); // No args |
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215 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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216 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
| 0 | 217 |
| 218 // Static call | |
| 219 // ----------- | |
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220 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
| 0 | 221 |
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222 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); |
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223 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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224 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
| 0 | 225 |
| 226 // Low-level interface | |
| 227 static void call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS); | |
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228 static void call(JavaValue* result, methodHandle method, nmethod* nm, JavaCallArguments* args, TRAPS); |
| 0 | 229 }; |
| 1972 | 230 |
| 231 #endif // SHARE_VM_RUNTIME_JAVACALLS_HPP |