Mercurial > hg > truffle
annotate src/share/vm/runtime/javaCalls.hpp @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 4ca6dc0799b6 |
| children | 8f2fb6bec986 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17524 | 2 * Copyright (c) 1997, 2013, 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 |
| 61 JavaFrameAnchor _anchor; // last thread anchor state that we must restore | |
| 62 | |
| 63 JavaValue* _result; // result value | |
| 64 | |
| 65 public: | |
| 66 // Construction/destruction | |
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67 JavaCallWrapper(methodHandle callee_method, JavaValue* result, TRAPS); |
| 0 | 68 ~JavaCallWrapper(); |
| 69 | |
| 70 // Accessors | |
| 71 JavaThread* thread() const { return _thread; } | |
| 72 JNIHandleBlock* handles() const { return _handles; } | |
| 73 | |
| 74 JavaFrameAnchor* anchor(void) { return &_anchor; } | |
| 75 | |
| 76 JavaValue* result() const { return _result; } | |
| 77 // GC support | |
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78 Method* callee_method() { return _callee_method; } |
| 0 | 79 void oops_do(OopClosure* f); |
| 80 | |
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81 bool is_first_frame() const { return _anchor.last_Java_sp() == NULL; } |
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82 |
| 0 | 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 | |
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101 #ifdef GRAAL |
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102 nmethod* _alternative_target; // Nmethod that should be called instead of normal target |
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103 #endif |
| 0 | 104 |
| 105 void initialize() { | |
| 106 // Starts at first element to support set_receiver. | |
| 107 _value = &_value_buffer[1]; | |
| 108 _is_oop = &_is_oop_buffer[1]; | |
| 109 | |
| 110 _max_size = _default_size; | |
| 111 _size = 0; | |
| 112 _start_at_zero = false; | |
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113 GRAAL_ONLY(_alternative_target = NULL;) |
| 0 | 114 } |
| 115 | |
| 116 public: | |
| 117 JavaCallArguments() { initialize(); } | |
| 118 | |
| 119 JavaCallArguments(Handle receiver) { | |
| 120 initialize(); | |
| 121 push_oop(receiver); | |
| 122 } | |
| 123 | |
| 124 JavaCallArguments(int max_size) { | |
| 125 if (max_size > _default_size) { | |
| 126 _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1); | |
| 127 _is_oop = NEW_RESOURCE_ARRAY(bool, max_size + 1); | |
| 1506 | 128 |
| 0 | 129 // Reserve room for potential receiver in value and is_oop |
| 130 _value++; _is_oop++; | |
| 1506 | 131 |
| 0 | 132 _max_size = max_size; |
| 133 _size = 0; | |
| 134 _start_at_zero = false; | |
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135 GRAAL_ONLY(_alternative_target = NULL;) |
| 0 | 136 } else { |
| 137 initialize(); | |
| 138 } | |
| 139 } | |
| 140 | |
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141 #ifdef GRAAL |
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142 void set_alternative_target(nmethod* target) { |
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143 _alternative_target = target; |
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144 } |
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145 |
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146 nmethod* alternative_target() { |
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147 return _alternative_target; |
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148 } |
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149 #endif |
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150 |
| 0 | 151 inline void push_oop(Handle h) { _is_oop[_size] = true; |
| 152 JNITypes::put_obj((oop)h.raw_value(), _value, _size); } | |
| 153 | |
| 154 inline void push_int(int i) { _is_oop[_size] = false; | |
| 155 JNITypes::put_int(i, _value, _size); } | |
| 156 | |
| 157 inline void push_double(double d) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
| 158 JNITypes::put_double(d, _value, _size); } | |
| 159 | |
| 160 inline void push_long(jlong l) { _is_oop[_size] = false; _is_oop[_size + 1] = false; | |
| 161 JNITypes::put_long(l, _value, _size); } | |
| 162 | |
| 163 inline void push_float(float f) { _is_oop[_size] = false; | |
| 164 JNITypes::put_float(f, _value, _size); } | |
| 165 | |
| 166 // receiver | |
| 167 Handle receiver() { | |
| 168 assert(_size > 0, "must at least be one argument"); | |
| 169 assert(_is_oop[0], "first argument must be an oop"); | |
| 170 assert(_value[0] != 0, "receiver must be not-null"); | |
| 171 return Handle((oop*)_value[0], false); | |
| 172 } | |
| 173 | |
| 174 void set_receiver(Handle h) { | |
| 175 assert(_start_at_zero == false, "can only be called once"); | |
| 176 _start_at_zero = true; | |
| 177 _is_oop--; | |
| 178 _value--; | |
| 179 _size++; | |
| 180 _is_oop[0] = true; | |
| 181 _value[0] = (intptr_t)h.raw_value(); | |
| 182 } | |
| 183 | |
| 184 // Converts all Handles to oops, and returns a reference to parameter vector | |
| 185 intptr_t* parameters() ; | |
| 186 int size_of_parameters() const { return _size; } | |
| 187 | |
| 188 // Verify that pushed arguments fits a given method | |
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189 void verify(methodHandle method, BasicType return_type, Thread *thread); |
| 0 | 190 }; |
| 191 | |
| 192 // All calls to Java have to go via JavaCalls. Sets up the stack frame | |
| 193 // and makes sure that the last_Java_frame pointers are chained correctly. | |
| 194 // | |
| 195 | |
| 196 class JavaCalls: AllStatic { | |
| 197 static void call_helper(JavaValue* result, methodHandle* method, JavaCallArguments* args, TRAPS); | |
| 198 public: | |
| 199 // Optimized Constuctor call | |
| 200 static void call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS); | |
| 201 | |
| 202 // call_special | |
| 203 // ------------ | |
| 204 // The receiver must be first oop in argument list | |
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205 static void call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
| 0 | 206 |
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207 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); // No args |
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208 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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209 static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
| 0 | 210 |
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211 // interface call |
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212 // ------------ |
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213 |
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214 // The receiver must be first oop in argument list |
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215 static void call_interface(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
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216 |
| 0 | 217 // virtual call |
| 218 // ------------ | |
| 219 | |
| 220 // The receiver must be first oop in argument list | |
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221 static void call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
| 0 | 222 |
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223 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS); // No args |
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224 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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225 static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
| 0 | 226 |
| 227 // Static call | |
| 228 // ----------- | |
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229 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
| 0 | 230 |
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231 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); |
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232 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
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233 static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
| 0 | 234 |
| 235 // Low-level interface | |
| 236 static void call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS); | |
| 237 }; | |
| 1972 | 238 |
| 239 #endif // SHARE_VM_RUNTIME_JAVACALLS_HPP |