Mercurial > hg > truffle
annotate src/share/vm/interpreter/templateInterpreter.hpp @ 17716:cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set.
Reviewed-by: acorn, kvn
Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Wed, 26 Feb 2014 15:20:41 -0800 |
| parents | 55fb97c4c58d |
| children | 4ca6dc0799b6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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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_INTERPRETER_TEMPLATEINTERPRETER_HPP |
| 26 #define SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP | |
| 27 | |
| 28 #include "interpreter/abstractInterpreter.hpp" | |
| 29 #include "interpreter/templateTable.hpp" | |
| 30 | |
| 605 | 31 // This file contains the platform-independent parts |
| 0 | 32 // of the template interpreter and the template interpreter generator. |
| 33 | |
| 34 #ifndef CC_INTERP | |
| 35 | |
| 36 //------------------------------------------------------------------------------------------------------------------------ | |
| 37 // A little wrapper class to group tosca-specific entry points into a unit. | |
| 38 // (tosca = Top-Of-Stack CAche) | |
| 39 | |
| 40 class EntryPoint VALUE_OBJ_CLASS_SPEC { | |
| 41 private: | |
| 42 address _entry[number_of_states]; | |
| 43 | |
| 44 public: | |
| 45 // Construction | |
| 46 EntryPoint(); | |
| 47 EntryPoint(address bentry, address centry, address sentry, address aentry, address ientry, address lentry, address fentry, address dentry, address ventry); | |
| 48 | |
| 49 // Attributes | |
| 50 address entry(TosState state) const; // return target address for a given tosca state | |
| 51 void set_entry(TosState state, address entry); // set target address for a given tosca state | |
| 52 void print(); | |
| 53 | |
| 54 // Comparison | |
| 55 bool operator == (const EntryPoint& y); // for debugging only | |
| 56 }; | |
| 57 | |
| 58 | |
| 59 //------------------------------------------------------------------------------------------------------------------------ | |
| 60 // A little wrapper class to group tosca-specific dispatch tables into a unit. | |
| 61 | |
| 62 class DispatchTable VALUE_OBJ_CLASS_SPEC { | |
| 63 public: | |
| 64 enum { length = 1 << BitsPerByte }; // an entry point for each byte value (also for undefined bytecodes) | |
| 65 | |
| 66 private: | |
| 67 address _table[number_of_states][length]; // dispatch tables, indexed by tosca and bytecode | |
| 68 | |
| 69 public: | |
| 70 // Attributes | |
| 71 EntryPoint entry(int i) const; // return entry point for a given bytecode i | |
| 72 void set_entry(int i, EntryPoint& entry); // set entry point for a given bytecode i | |
| 73 address* table_for(TosState state) { return _table[state]; } | |
| 74 address* table_for() { return table_for((TosState)0); } | |
| 75 int distance_from(address *table) { return table - table_for(); } | |
| 76 int distance_from(TosState state) { return distance_from(table_for(state)); } | |
| 77 | |
| 78 // Comparison | |
| 79 bool operator == (DispatchTable& y); // for debugging only | |
| 80 }; | |
| 81 | |
| 82 class TemplateInterpreter: public AbstractInterpreter { | |
| 83 friend class VMStructs; | |
| 84 friend class InterpreterMacroAssembler; | |
| 85 friend class TemplateInterpreterGenerator; | |
| 710 | 86 friend class InterpreterGenerator; |
| 0 | 87 friend class TemplateTable; |
| 88 // friend class Interpreter; | |
| 89 public: | |
| 90 | |
| 91 enum MoreConstants { | |
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92 number_of_return_entries = number_of_states, // number of return entry points |
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93 number_of_deopt_entries = number_of_states, // number of deoptimization entry points |
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94 number_of_return_addrs = number_of_states // number of return addresses |
| 0 | 95 }; |
| 96 | |
| 97 protected: | |
| 98 | |
| 99 static address _throw_ArrayIndexOutOfBoundsException_entry; | |
| 100 static address _throw_ArrayStoreException_entry; | |
| 101 static address _throw_ArithmeticException_entry; | |
| 102 static address _throw_ClassCastException_entry; | |
| 710 | 103 static address _throw_WrongMethodType_entry; |
| 0 | 104 static address _throw_NullPointerException_entry; |
| 105 static address _throw_exception_entry; | |
| 106 | |
| 107 static address _throw_StackOverflowError_entry; | |
| 108 | |
| 109 static address _remove_activation_entry; // continuation address if an exception is not handled by current frame | |
| 110 #ifdef HOTSWAP | |
| 111 static address _remove_activation_preserving_args_entry; // continuation address when current frame is being popped | |
| 112 #endif // HOTSWAP | |
| 113 | |
| 114 #ifndef PRODUCT | |
| 115 static EntryPoint _trace_code; | |
| 116 #endif // !PRODUCT | |
| 117 static EntryPoint _return_entry[number_of_return_entries]; // entry points to return to from a call | |
| 118 static EntryPoint _earlyret_entry; // entry point to return early from a call | |
| 119 static EntryPoint _deopt_entry[number_of_deopt_entries]; // entry points to return to from a deoptimization | |
| 120 static EntryPoint _continuation_entry; | |
| 121 static EntryPoint _safept_entry; | |
| 122 | |
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123 static address _invoke_return_entry[number_of_return_addrs]; // for invokestatic, invokespecial, invokevirtual return entries |
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124 static address _invokeinterface_return_entry[number_of_return_addrs]; // for invokeinterface return entries |
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125 static address _invokedynamic_return_entry[number_of_return_addrs]; // for invokedynamic return entries |
| 0 | 126 |
| 127 static DispatchTable _active_table; // the active dispatch table (used by the interpreter for dispatch) | |
| 128 static DispatchTable _normal_table; // the normal dispatch table (used to set the active table in normal mode) | |
| 129 static DispatchTable _safept_table; // the safepoint dispatch table (used to set the active table for safepoints) | |
| 130 static address _wentry_point[DispatchTable::length]; // wide instructions only (vtos tosca always) | |
| 131 | |
| 132 | |
| 133 public: | |
| 134 // Initialization/debugging | |
| 135 static void initialize(); | |
| 136 // this only returns whether a pc is within generated code for the interpreter. | |
| 137 static bool contains(address pc) { return _code != NULL && _code->contains(pc); } | |
| 138 | |
| 139 public: | |
| 140 | |
| 141 static address remove_activation_early_entry(TosState state) { return _earlyret_entry.entry(state); } | |
| 142 #ifdef HOTSWAP | |
| 143 static address remove_activation_preserving_args_entry() { return _remove_activation_preserving_args_entry; } | |
| 144 #endif // HOTSWAP | |
| 145 | |
| 146 static address remove_activation_entry() { return _remove_activation_entry; } | |
| 147 static address throw_exception_entry() { return _throw_exception_entry; } | |
| 148 static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; } | |
| 710 | 149 static address throw_WrongMethodType_entry() { return _throw_WrongMethodType_entry; } |
| 0 | 150 static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; } |
| 151 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } | |
| 152 | |
| 153 // Code generation | |
| 154 #ifndef PRODUCT | |
| 155 static address trace_code (TosState state) { return _trace_code.entry(state); } | |
| 156 #endif // !PRODUCT | |
| 157 static address continuation (TosState state) { return _continuation_entry.entry(state); } | |
| 158 static address* dispatch_table(TosState state) { return _active_table.table_for(state); } | |
| 159 static address* dispatch_table() { return _active_table.table_for(); } | |
| 160 static int distance_from_dispatch_table(TosState state){ return _active_table.distance_from(state); } | |
| 161 static address* normal_table(TosState state) { return _normal_table.table_for(state); } | |
| 162 static address* normal_table() { return _normal_table.table_for(); } | |
| 163 | |
| 164 // Support for invokes | |
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165 static address* invoke_return_entry_table() { return _invoke_return_entry; } |
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166 static address* invokeinterface_return_entry_table() { return _invokeinterface_return_entry; } |
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167 static address* invokedynamic_return_entry_table() { return _invokedynamic_return_entry; } |
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168 static int TosState_as_index(TosState state); |
| 0 | 169 |
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170 static address* invoke_return_entry_table_for(Bytecodes::Code code); |
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171 |
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172 static address deopt_entry(TosState state, int length); |
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173 static address return_entry(TosState state, int length, Bytecodes::Code code); |
| 0 | 174 |
| 175 // Safepoint support | |
| 176 static void notice_safepoints(); // stops the thread when reaching a safepoint | |
| 177 static void ignore_safepoints(); // ignores safepoints | |
| 178 | |
| 179 // Deoptimization support | |
|
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180 // Compute the entry address for continuation after |
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181 static address deopt_continue_after_entry(Method* method, |
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182 address bcp, |
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183 int callee_parameters, |
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184 bool is_top_frame); |
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185 // Deoptimization should reexecute this bytecode |
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186 static bool bytecode_should_reexecute(Bytecodes::Code code); |
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187 // Compute the address for reexecution |
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188 static address deopt_reexecute_entry(Method* method, address bcp); |
| 0 | 189 |
| 1972 | 190 #ifdef TARGET_ARCH_x86 |
| 191 # include "templateInterpreter_x86.hpp" | |
| 192 #endif | |
| 193 #ifdef TARGET_ARCH_sparc | |
| 194 # include "templateInterpreter_sparc.hpp" | |
| 195 #endif | |
| 196 #ifdef TARGET_ARCH_zero | |
| 197 # include "templateInterpreter_zero.hpp" | |
| 198 #endif | |
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199 #ifdef TARGET_ARCH_arm |
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200 # include "templateInterpreter_arm.hpp" |
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201 #endif |
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202 #ifdef TARGET_ARCH_ppc |
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203 # include "templateInterpreter_ppc.hpp" |
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204 #endif |
| 1972 | 205 |
| 0 | 206 |
| 207 }; | |
| 208 | |
| 209 #endif // !CC_INTERP | |
| 1972 | 210 |
| 211 #endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP |