Mercurial > hg > truffle
annotate src/share/vm/interpreter/templateInterpreter.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 | da91efe96a93 |
| children | bd3237e0e18d |
| 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_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 | |
| 123 static address _return_3_addrs_by_index[number_of_return_addrs]; // for invokevirtual return entries | |
| 124 static address _return_5_addrs_by_index[number_of_return_addrs]; // for invokeinterface return entries | |
| 125 | |
| 126 static DispatchTable _active_table; // the active dispatch table (used by the interpreter for dispatch) | |
| 127 static DispatchTable _normal_table; // the normal dispatch table (used to set the active table in normal mode) | |
| 128 static DispatchTable _safept_table; // the safepoint dispatch table (used to set the active table for safepoints) | |
| 129 static address _wentry_point[DispatchTable::length]; // wide instructions only (vtos tosca always) | |
| 130 | |
| 131 | |
| 132 public: | |
| 133 // Initialization/debugging | |
| 134 static void initialize(); | |
| 135 // this only returns whether a pc is within generated code for the interpreter. | |
| 136 static bool contains(address pc) { return _code != NULL && _code->contains(pc); } | |
| 137 | |
| 138 public: | |
| 139 | |
| 140 static address remove_activation_early_entry(TosState state) { return _earlyret_entry.entry(state); } | |
| 141 #ifdef HOTSWAP | |
| 142 static address remove_activation_preserving_args_entry() { return _remove_activation_preserving_args_entry; } | |
| 143 #endif // HOTSWAP | |
| 144 | |
| 145 static address remove_activation_entry() { return _remove_activation_entry; } | |
| 146 static address throw_exception_entry() { return _throw_exception_entry; } | |
| 147 static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; } | |
| 710 | 148 static address throw_WrongMethodType_entry() { return _throw_WrongMethodType_entry; } |
| 0 | 149 static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; } |
| 150 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } | |
| 151 | |
| 152 // Code generation | |
| 153 #ifndef PRODUCT | |
| 154 static address trace_code (TosState state) { return _trace_code.entry(state); } | |
| 155 #endif // !PRODUCT | |
| 156 static address continuation (TosState state) { return _continuation_entry.entry(state); } | |
| 157 static address* dispatch_table(TosState state) { return _active_table.table_for(state); } | |
| 158 static address* dispatch_table() { return _active_table.table_for(); } | |
| 159 static int distance_from_dispatch_table(TosState state){ return _active_table.distance_from(state); } | |
| 160 static address* normal_table(TosState state) { return _normal_table.table_for(state); } | |
| 161 static address* normal_table() { return _normal_table.table_for(); } | |
| 162 | |
| 163 // Support for invokes | |
| 164 static address* return_3_addrs_by_index_table() { return _return_3_addrs_by_index; } | |
| 165 static address* return_5_addrs_by_index_table() { return _return_5_addrs_by_index; } | |
| 166 static int TosState_as_index(TosState state); // computes index into return_3_entry_by_index table | |
| 167 | |
| 168 static address return_entry (TosState state, int length); | |
| 169 static address deopt_entry (TosState state, int length); | |
| 170 | |
| 171 // Safepoint support | |
| 172 static void notice_safepoints(); // stops the thread when reaching a safepoint | |
| 173 static void ignore_safepoints(); // ignores safepoints | |
| 174 | |
| 175 // Deoptimization support | |
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176 // Compute the entry address for continuation after |
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177 static address deopt_continue_after_entry(Method* method, |
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178 address bcp, |
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179 int callee_parameters, |
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180 bool is_top_frame); |
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181 // Deoptimization should reexecute this bytecode |
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182 static bool bytecode_should_reexecute(Bytecodes::Code code); |
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183 // Compute the address for reexecution |
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184 static address deopt_reexecute_entry(Method* method, address bcp); |
| 0 | 185 |
| 1972 | 186 #ifdef TARGET_ARCH_x86 |
| 187 # include "templateInterpreter_x86.hpp" | |
| 188 #endif | |
| 189 #ifdef TARGET_ARCH_sparc | |
| 190 # include "templateInterpreter_sparc.hpp" | |
| 191 #endif | |
| 192 #ifdef TARGET_ARCH_zero | |
| 193 # include "templateInterpreter_zero.hpp" | |
| 194 #endif | |
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195 #ifdef TARGET_ARCH_arm |
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196 # include "templateInterpreter_arm.hpp" |
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197 #endif |
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198 #ifdef TARGET_ARCH_ppc |
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199 # include "templateInterpreter_ppc.hpp" |
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200 #endif |
| 1972 | 201 |
| 0 | 202 |
| 203 }; | |
| 204 | |
| 205 #endif // !CC_INTERP | |
| 1972 | 206 |
| 207 #endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP |