Mon, 09 Mar 2020 12:54:53 +0000
8240295: hs_err elapsed time in seconds is not accurate enough
Reviewed-by: dholmes, sspitsyn
duke@435 | 1 | /* |
phh@9669 | 2 | * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_RUNTIME_JAVACALLS_HPP |
stefank@2314 | 26 | #define SHARE_VM_RUNTIME_JAVACALLS_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "memory/allocation.hpp" |
coleenp@4037 | 29 | #include "oops/method.hpp" |
stefank@2314 | 30 | #include "runtime/handles.hpp" |
stefank@2314 | 31 | #include "runtime/javaFrameAnchor.hpp" |
stefank@4299 | 32 | #include "runtime/thread.inline.hpp" |
stefank@2314 | 33 | #include "runtime/vmThread.hpp" |
stefank@2314 | 34 | #ifdef TARGET_ARCH_x86 |
stefank@2314 | 35 | # include "jniTypes_x86.hpp" |
stefank@2314 | 36 | #endif |
stefank@2314 | 37 | #ifdef TARGET_ARCH_sparc |
stefank@2314 | 38 | # include "jniTypes_sparc.hpp" |
stefank@2314 | 39 | #endif |
stefank@2314 | 40 | #ifdef TARGET_ARCH_zero |
stefank@2314 | 41 | # include "jniTypes_zero.hpp" |
stefank@2314 | 42 | #endif |
bobv@2508 | 43 | #ifdef TARGET_ARCH_arm |
bobv@2508 | 44 | # include "jniTypes_arm.hpp" |
bobv@2508 | 45 | #endif |
bobv@2508 | 46 | #ifdef TARGET_ARCH_ppc |
bobv@2508 | 47 | # include "jniTypes_ppc.hpp" |
bobv@2508 | 48 | #endif |
stefank@2314 | 49 | |
duke@435 | 50 | // A JavaCallWrapper is constructed before each JavaCall and destructed after the call. |
duke@435 | 51 | // Its purpose is to allocate/deallocate a new handle block and to save/restore the last |
duke@435 | 52 | // Java fp/sp. A pointer to the JavaCallWrapper is stored on the stack. |
duke@435 | 53 | |
duke@435 | 54 | class JavaCallWrapper: StackObj { |
duke@435 | 55 | friend class VMStructs; |
duke@435 | 56 | private: |
duke@435 | 57 | JavaThread* _thread; // the thread to which this call belongs |
duke@435 | 58 | JNIHandleBlock* _handles; // the saved handle block |
coleenp@4037 | 59 | Method* _callee_method; // to be able to collect arguments if entry frame is top frame |
duke@435 | 60 | oop _receiver; // the receiver of the call (if a non-static call) |
duke@435 | 61 | |
duke@435 | 62 | JavaFrameAnchor _anchor; // last thread anchor state that we must restore |
duke@435 | 63 | |
duke@435 | 64 | JavaValue* _result; // result value |
duke@435 | 65 | |
duke@435 | 66 | public: |
duke@435 | 67 | // Construction/destruction |
duke@435 | 68 | JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS); |
duke@435 | 69 | ~JavaCallWrapper(); |
duke@435 | 70 | |
duke@435 | 71 | // Accessors |
duke@435 | 72 | JavaThread* thread() const { return _thread; } |
duke@435 | 73 | JNIHandleBlock* handles() const { return _handles; } |
duke@435 | 74 | |
duke@435 | 75 | JavaFrameAnchor* anchor(void) { return &_anchor; } |
duke@435 | 76 | |
duke@435 | 77 | JavaValue* result() const { return _result; } |
duke@435 | 78 | // GC support |
coleenp@4037 | 79 | Method* callee_method() { return _callee_method; } |
duke@435 | 80 | oop receiver() { return _receiver; } |
duke@435 | 81 | void oops_do(OopClosure* f); |
duke@435 | 82 | |
rbackman@5419 | 83 | bool is_first_frame() const { return _anchor.last_Java_sp() == NULL; } |
rbackman@5419 | 84 | |
duke@435 | 85 | }; |
duke@435 | 86 | |
duke@435 | 87 | |
duke@435 | 88 | // Encapsulates arguments to a JavaCall (faster, safer, and more convenient than using var-args) |
duke@435 | 89 | class JavaCallArguments : public StackObj { |
duke@435 | 90 | private: |
duke@435 | 91 | enum Constants { |
duke@435 | 92 | _default_size = 8 // Must be at least # of arguments in JavaCalls methods |
duke@435 | 93 | }; |
duke@435 | 94 | |
phh@9669 | 95 | intptr_t _value_buffer [_default_size + 1]; |
phh@9669 | 96 | u_char _value_state_buffer[_default_size + 1]; |
duke@435 | 97 | |
duke@435 | 98 | intptr_t* _value; |
phh@9669 | 99 | u_char* _value_state; |
duke@435 | 100 | int _size; |
duke@435 | 101 | int _max_size; |
duke@435 | 102 | bool _start_at_zero; // Support late setting of receiver |
duke@435 | 103 | |
duke@435 | 104 | void initialize() { |
duke@435 | 105 | // Starts at first element to support set_receiver. |
phh@9669 | 106 | _value = &_value_buffer[1]; |
phh@9669 | 107 | _value_state = &_value_state_buffer[1]; |
duke@435 | 108 | |
duke@435 | 109 | _max_size = _default_size; |
duke@435 | 110 | _size = 0; |
duke@435 | 111 | _start_at_zero = false; |
duke@435 | 112 | } |
duke@435 | 113 | |
phh@9669 | 114 | // Helper for push_oop and the like. The value argument is a |
phh@9669 | 115 | // "handle" that refers to an oop. We record the address of the |
phh@9669 | 116 | // handle rather than the designated oop. The handle is later |
phh@9669 | 117 | // resolved to the oop by parameters(). This delays the exposure of |
phh@9669 | 118 | // naked oops until it is GC-safe. |
phh@9669 | 119 | template<typename T> |
phh@9669 | 120 | inline int push_oop_impl(T handle, int size) { |
phh@9669 | 121 | // JNITypes::put_obj expects an oop value, so we play fast and |
phh@9669 | 122 | // loose with the type system. The cast from handle type to oop |
phh@9669 | 123 | // *must* use a C-style cast. In a product build it performs a |
phh@9669 | 124 | // reinterpret_cast. In a debug build (more accurately, in a |
phh@9669 | 125 | // CHECK_UNHANDLED_OOPS build) it performs a static_cast, invoking |
phh@9669 | 126 | // the debug-only oop class's conversion from void* constructor. |
phh@9669 | 127 | JNITypes::put_obj((oop)handle, _value, size); // Updates size. |
phh@9669 | 128 | return size; // Return the updated size. |
phh@9669 | 129 | } |
phh@9669 | 130 | |
duke@435 | 131 | public: |
duke@435 | 132 | JavaCallArguments() { initialize(); } |
duke@435 | 133 | |
duke@435 | 134 | JavaCallArguments(Handle receiver) { |
duke@435 | 135 | initialize(); |
duke@435 | 136 | push_oop(receiver); |
duke@435 | 137 | } |
duke@435 | 138 | |
duke@435 | 139 | JavaCallArguments(int max_size) { |
duke@435 | 140 | if (max_size > _default_size) { |
phh@9669 | 141 | _value = NEW_RESOURCE_ARRAY(intptr_t, max_size + 1); |
phh@9669 | 142 | _value_state = NEW_RESOURCE_ARRAY(u_char, max_size + 1); |
twisti@1861 | 143 | |
phh@9669 | 144 | // Reserve room for potential receiver in value and state |
phh@9669 | 145 | _value++; |
phh@9669 | 146 | _value_state++; |
twisti@1861 | 147 | |
duke@435 | 148 | _max_size = max_size; |
duke@435 | 149 | _size = 0; |
duke@435 | 150 | _start_at_zero = false; |
duke@435 | 151 | } else { |
duke@435 | 152 | initialize(); |
duke@435 | 153 | } |
duke@435 | 154 | } |
duke@435 | 155 | |
phh@9669 | 156 | // The possible values for _value_state elements. |
phh@9669 | 157 | enum { |
phh@9669 | 158 | value_state_primitive, |
phh@9669 | 159 | value_state_oop, |
phh@9669 | 160 | value_state_handle, |
phh@9669 | 161 | value_state_jobject, |
phh@9669 | 162 | value_state_limit |
phh@9669 | 163 | }; |
duke@435 | 164 | |
phh@9669 | 165 | inline void push_oop(Handle h) { |
phh@9669 | 166 | _value_state[_size] = value_state_handle; |
phh@9669 | 167 | _size = push_oop_impl(h.raw_value(), _size); |
phh@9669 | 168 | } |
duke@435 | 169 | |
phh@9669 | 170 | inline void push_jobject(jobject h) { |
phh@9669 | 171 | _value_state[_size] = value_state_jobject; |
phh@9669 | 172 | _size = push_oop_impl(h, _size); |
phh@9669 | 173 | } |
duke@435 | 174 | |
phh@9669 | 175 | inline void push_int(int i) { |
phh@9669 | 176 | _value_state[_size] = value_state_primitive; |
phh@9669 | 177 | JNITypes::put_int(i, _value, _size); |
phh@9669 | 178 | } |
duke@435 | 179 | |
phh@9669 | 180 | inline void push_double(double d) { |
phh@9669 | 181 | _value_state[_size] = value_state_primitive; |
phh@9669 | 182 | _value_state[_size + 1] = value_state_primitive; |
phh@9669 | 183 | JNITypes::put_double(d, _value, _size); |
phh@9669 | 184 | } |
phh@9669 | 185 | |
phh@9669 | 186 | inline void push_long(jlong l) { |
phh@9669 | 187 | _value_state[_size] = value_state_primitive; |
phh@9669 | 188 | _value_state[_size + 1] = value_state_primitive; |
phh@9669 | 189 | JNITypes::put_long(l, _value, _size); |
phh@9669 | 190 | } |
phh@9669 | 191 | |
phh@9669 | 192 | inline void push_float(float f) { |
phh@9669 | 193 | _value_state[_size] = value_state_primitive; |
phh@9669 | 194 | JNITypes::put_float(f, _value, _size); |
phh@9669 | 195 | } |
duke@435 | 196 | |
duke@435 | 197 | // receiver |
duke@435 | 198 | Handle receiver() { |
duke@435 | 199 | assert(_size > 0, "must at least be one argument"); |
phh@9669 | 200 | assert(_value_state[0] == value_state_handle, |
phh@9669 | 201 | "first argument must be an oop"); |
duke@435 | 202 | assert(_value[0] != 0, "receiver must be not-null"); |
duke@435 | 203 | return Handle((oop*)_value[0], false); |
duke@435 | 204 | } |
duke@435 | 205 | |
duke@435 | 206 | void set_receiver(Handle h) { |
duke@435 | 207 | assert(_start_at_zero == false, "can only be called once"); |
duke@435 | 208 | _start_at_zero = true; |
phh@9669 | 209 | _value_state--; |
duke@435 | 210 | _value--; |
duke@435 | 211 | _size++; |
phh@9669 | 212 | _value_state[0] = value_state_handle; |
phh@9669 | 213 | push_oop_impl(h.raw_value(), 0); |
duke@435 | 214 | } |
duke@435 | 215 | |
duke@435 | 216 | // Converts all Handles to oops, and returns a reference to parameter vector |
duke@435 | 217 | intptr_t* parameters() ; |
duke@435 | 218 | int size_of_parameters() const { return _size; } |
duke@435 | 219 | |
duke@435 | 220 | // Verify that pushed arguments fits a given method |
phh@9669 | 221 | void verify(methodHandle method, BasicType return_type); |
duke@435 | 222 | }; |
duke@435 | 223 | |
duke@435 | 224 | // All calls to Java have to go via JavaCalls. Sets up the stack frame |
duke@435 | 225 | // and makes sure that the last_Java_frame pointers are chained correctly. |
duke@435 | 226 | // |
duke@435 | 227 | |
duke@435 | 228 | class JavaCalls: AllStatic { |
duke@435 | 229 | static void call_helper(JavaValue* result, methodHandle* method, JavaCallArguments* args, TRAPS); |
duke@435 | 230 | public: |
duke@435 | 231 | // Optimized Constuctor call |
duke@435 | 232 | static void call_default_constructor(JavaThread* thread, methodHandle method, Handle receiver, TRAPS); |
duke@435 | 233 | |
duke@435 | 234 | // call_special |
duke@435 | 235 | // ------------ |
duke@435 | 236 | // The receiver must be first oop in argument list |
coleenp@2497 | 237 | static void call_special(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
duke@435 | 238 | |
coleenp@2497 | 239 | static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); // No args |
coleenp@2497 | 240 | static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
coleenp@2497 | 241 | static void call_special(JavaValue* result, Handle receiver, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
duke@435 | 242 | |
duke@435 | 243 | // virtual call |
duke@435 | 244 | // ------------ |
duke@435 | 245 | |
duke@435 | 246 | // The receiver must be first oop in argument list |
coleenp@2497 | 247 | static void call_virtual(JavaValue* result, KlassHandle spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
duke@435 | 248 | |
coleenp@2497 | 249 | static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, TRAPS); // No args |
coleenp@2497 | 250 | static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
coleenp@2497 | 251 | static void call_virtual(JavaValue* result, Handle receiver, KlassHandle spec_klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
duke@435 | 252 | |
duke@435 | 253 | // Static call |
duke@435 | 254 | // ----------- |
coleenp@2497 | 255 | static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS); |
duke@435 | 256 | |
coleenp@2497 | 257 | static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS); |
coleenp@2497 | 258 | static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, TRAPS); |
coleenp@2497 | 259 | static void call_static(JavaValue* result, KlassHandle klass, Symbol* name, Symbol* signature, Handle arg1, Handle arg2, TRAPS); |
duke@435 | 260 | |
duke@435 | 261 | // Low-level interface |
duke@435 | 262 | static void call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS); |
duke@435 | 263 | }; |
stefank@2314 | 264 | |
stefank@2314 | 265 | #endif // SHARE_VM_RUNTIME_JAVACALLS_HPP |