Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/javaCalls.hpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | f08d439fab8c |
| children | e522a00b91aa f34d701e952e |
| rev | line source |
|---|---|
| 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" | |
| 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 | |
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70 Method* _callee_method; // to be able to collect arguments if entry frame is top frame |
| 0 | 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 | |
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90 Method* callee_method() { return _callee_method; } |
| 0 | 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 |