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src/share/vm/interpreter/templateInterpreter.hpp@eef07cd490d4 (annotated)

src/share/vm/interpreter/templateInterpreter.hpp

Wed, 03 Jul 2019 20:42:37 +0800

author
aoqi
date
Wed, 03 Jul 2019 20:42:37 +0800
changeset 9637
eef07cd490d4
parent 8604
04d83ba48607
permissions
-rw-r--r--

Merge

aoqi@0 1 /*
kevinw@8368 2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 *
aoqi@0 23 */
aoqi@0 24
aoqi@1 25 /*
aoqi@1 26 * This file has been modified by Loongson Technology in 2015. These
aoqi@1 27 * modifications are Copyright (c) 2015 Loongson Technology, and are made
aoqi@1 28 * available on the same license terms set forth above.
aoqi@1 29 */
aoqi@1 30
aoqi@0 31 #ifndef SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP
aoqi@0 32 #define SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP
aoqi@0 33
aoqi@0 34 #include "interpreter/abstractInterpreter.hpp"
aoqi@0 35 #include "interpreter/templateTable.hpp"
aoqi@0 36
aoqi@0 37 // This file contains the platform-independent parts
aoqi@0 38 // of the template interpreter and the template interpreter generator.
aoqi@0 39
aoqi@0 40 #ifndef CC_INTERP
aoqi@0 41
aoqi@0 42 //------------------------------------------------------------------------------------------------------------------------
aoqi@0 43 // A little wrapper class to group tosca-specific entry points into a unit.
aoqi@0 44 // (tosca = Top-Of-Stack CAche)
aoqi@0 45
aoqi@0 46 class EntryPoint VALUE_OBJ_CLASS_SPEC {
aoqi@0 47 private:
aoqi@0 48 address _entry[number_of_states];
aoqi@0 49
aoqi@0 50 public:
aoqi@0 51 // Construction
aoqi@0 52 EntryPoint();
kevinw@8368 53 EntryPoint(address bentry, address zentry, address centry, address sentry, address aentry, address ientry, address lentry, address fentry, address dentry, address ventry);
aoqi@0 54
aoqi@0 55 // Attributes
aoqi@0 56 address entry(TosState state) const; // return target address for a given tosca state
aoqi@0 57 void set_entry(TosState state, address entry); // set target address for a given tosca state
aoqi@0 58 void print();
aoqi@0 59
aoqi@0 60 // Comparison
aoqi@0 61 bool operator == (const EntryPoint& y); // for debugging only
aoqi@0 62 };
aoqi@0 63
aoqi@0 64
aoqi@0 65 //------------------------------------------------------------------------------------------------------------------------
aoqi@0 66 // A little wrapper class to group tosca-specific dispatch tables into a unit.
aoqi@0 67
aoqi@0 68 class DispatchTable VALUE_OBJ_CLASS_SPEC {
aoqi@0 69 public:
aoqi@0 70 enum { length = 1 << BitsPerByte }; // an entry point for each byte value (also for undefined bytecodes)
aoqi@0 71
aoqi@0 72 private:
aoqi@0 73 address _table[number_of_states][length]; // dispatch tables, indexed by tosca and bytecode
aoqi@0 74
aoqi@0 75 public:
aoqi@0 76 // Attributes
aoqi@0 77 EntryPoint entry(int i) const; // return entry point for a given bytecode i
aoqi@0 78 void set_entry(int i, EntryPoint& entry); // set entry point for a given bytecode i
aoqi@0 79 address* table_for(TosState state) { return _table[state]; }
aoqi@0 80 address* table_for() { return table_for((TosState)0); }
aoqi@0 81 int distance_from(address *table) { return table - table_for(); }
aoqi@0 82 int distance_from(TosState state) { return distance_from(table_for(state)); }
aoqi@0 83
aoqi@0 84 // Comparison
aoqi@0 85 bool operator == (DispatchTable& y); // for debugging only
aoqi@0 86 };
aoqi@0 87
aoqi@0 88 class TemplateInterpreter: public AbstractInterpreter {
aoqi@0 89 friend class VMStructs;
aoqi@0 90 friend class InterpreterMacroAssembler;
aoqi@0 91 friend class TemplateInterpreterGenerator;
aoqi@0 92 friend class InterpreterGenerator;
aoqi@0 93 friend class TemplateTable;
aoqi@0 94 // friend class Interpreter;
aoqi@0 95 public:
aoqi@0 96
aoqi@0 97 enum MoreConstants {
aoqi@0 98 number_of_return_entries = number_of_states, // number of return entry points
aoqi@0 99 number_of_deopt_entries = number_of_states, // number of deoptimization entry points
aoqi@0 100 number_of_return_addrs = number_of_states // number of return addresses
aoqi@0 101 };
aoqi@0 102
aoqi@0 103 protected:
aoqi@0 104
aoqi@0 105 static address _throw_ArrayIndexOutOfBoundsException_entry;
aoqi@0 106 static address _throw_ArrayStoreException_entry;
aoqi@0 107 static address _throw_ArithmeticException_entry;
aoqi@0 108 static address _throw_ClassCastException_entry;
aoqi@0 109 static address _throw_WrongMethodType_entry;
aoqi@0 110 static address _throw_NullPointerException_entry;
aoqi@0 111 static address _throw_exception_entry;
aoqi@0 112
aoqi@0 113 static address _throw_StackOverflowError_entry;
aoqi@0 114
aoqi@0 115 static address _remove_activation_entry; // continuation address if an exception is not handled by current frame
aoqi@0 116 #ifdef HOTSWAP
aoqi@0 117 static address _remove_activation_preserving_args_entry; // continuation address when current frame is being popped
aoqi@0 118 #endif // HOTSWAP
aoqi@0 119
aoqi@0 120 #ifndef PRODUCT
aoqi@0 121 static EntryPoint _trace_code;
aoqi@0 122 #endif // !PRODUCT
aoqi@0 123 static EntryPoint _return_entry[number_of_return_entries]; // entry points to return to from a call
aoqi@0 124 static EntryPoint _earlyret_entry; // entry point to return early from a call
aoqi@0 125 static EntryPoint _deopt_entry[number_of_deopt_entries]; // entry points to return to from a deoptimization
aoqi@0 126 static EntryPoint _continuation_entry;
aoqi@0 127 static EntryPoint _safept_entry;
aoqi@0 128
aoqi@0 129 static address _invoke_return_entry[number_of_return_addrs]; // for invokestatic, invokespecial, invokevirtual return entries
aoqi@0 130 static address _invokeinterface_return_entry[number_of_return_addrs]; // for invokeinterface return entries
aoqi@0 131 static address _invokedynamic_return_entry[number_of_return_addrs]; // for invokedynamic return entries
aoqi@0 132
aoqi@0 133 static DispatchTable _active_table; // the active dispatch table (used by the interpreter for dispatch)
aoqi@0 134 static DispatchTable _normal_table; // the normal dispatch table (used to set the active table in normal mode)
aoqi@0 135 static DispatchTable _safept_table; // the safepoint dispatch table (used to set the active table for safepoints)
aoqi@0 136 static address _wentry_point[DispatchTable::length]; // wide instructions only (vtos tosca always)
aoqi@0 137
aoqi@0 138
aoqi@0 139 public:
aoqi@0 140 // Initialization/debugging
aoqi@0 141 static void initialize();
aoqi@0 142 // this only returns whether a pc is within generated code for the interpreter.
aoqi@0 143 static bool contains(address pc) { return _code != NULL && _code->contains(pc); }
aoqi@0 144
aoqi@0 145 public:
aoqi@0 146
aoqi@0 147 static address remove_activation_early_entry(TosState state) { return _earlyret_entry.entry(state); }
aoqi@0 148 #ifdef HOTSWAP
aoqi@0 149 static address remove_activation_preserving_args_entry() { return _remove_activation_preserving_args_entry; }
aoqi@0 150 #endif // HOTSWAP
aoqi@0 151
aoqi@0 152 static address remove_activation_entry() { return _remove_activation_entry; }
aoqi@0 153 static address throw_exception_entry() { return _throw_exception_entry; }
aoqi@0 154 static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; }
aoqi@0 155 static address throw_WrongMethodType_entry() { return _throw_WrongMethodType_entry; }
aoqi@0 156 static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; }
aoqi@0 157 static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; }
aoqi@0 158
aoqi@0 159 // Code generation
aoqi@0 160 #ifndef PRODUCT
aoqi@0 161 static address trace_code (TosState state) { return _trace_code.entry(state); }
aoqi@0 162 #endif // !PRODUCT
aoqi@0 163 static address continuation (TosState state) { return _continuation_entry.entry(state); }
aoqi@0 164 static address* dispatch_table(TosState state) { return _active_table.table_for(state); }
aoqi@0 165 static address* dispatch_table() { return _active_table.table_for(); }
aoqi@0 166 static int distance_from_dispatch_table(TosState state){ return _active_table.distance_from(state); }
aoqi@0 167 static address* normal_table(TosState state) { return _normal_table.table_for(state); }
aoqi@0 168 static address* normal_table() { return _normal_table.table_for(); }
aoqi@0 169
aoqi@0 170 // Support for invokes
aoqi@0 171 static address* invoke_return_entry_table() { return _invoke_return_entry; }
aoqi@0 172 static address* invokeinterface_return_entry_table() { return _invokeinterface_return_entry; }
aoqi@0 173 static address* invokedynamic_return_entry_table() { return _invokedynamic_return_entry; }
aoqi@0 174 static int TosState_as_index(TosState state);
aoqi@0 175
aoqi@0 176 static address* invoke_return_entry_table_for(Bytecodes::Code code);
aoqi@0 177
aoqi@0 178 static address deopt_entry(TosState state, int length);
aoqi@0 179 static address return_entry(TosState state, int length, Bytecodes::Code code);
aoqi@0 180
aoqi@0 181 // Safepoint support
aoqi@0 182 static void notice_safepoints(); // stops the thread when reaching a safepoint
aoqi@0 183 static void ignore_safepoints(); // ignores safepoints
aoqi@0 184
aoqi@0 185 // Deoptimization support
aoqi@0 186 // Compute the entry address for continuation after
aoqi@0 187 static address deopt_continue_after_entry(Method* method,
aoqi@0 188 address bcp,
aoqi@0 189 int callee_parameters,
aoqi@0 190 bool is_top_frame);
aoqi@0 191 // Deoptimization should reexecute this bytecode
aoqi@0 192 static bool bytecode_should_reexecute(Bytecodes::Code code);
aoqi@0 193 // Compute the address for reexecution
aoqi@0 194 static address deopt_reexecute_entry(Method* method, address bcp);
aoqi@0 195
aoqi@0 196 #ifdef TARGET_ARCH_x86
aoqi@0 197 # include "templateInterpreter_x86.hpp"
aoqi@0 198 #endif
aoqi@1 199 #ifdef TARGET_ARCH_mips
aoqi@1 200 # include "templateInterpreter_mips.hpp"
aoqi@1 201 #endif
aoqi@0 202 #ifdef TARGET_ARCH_sparc
aoqi@0 203 # include "templateInterpreter_sparc.hpp"
aoqi@0 204 #endif
aoqi@0 205 #ifdef TARGET_ARCH_zero
aoqi@0 206 # include "templateInterpreter_zero.hpp"
aoqi@0 207 #endif
aoqi@0 208 #ifdef TARGET_ARCH_arm
aoqi@0 209 # include "templateInterpreter_arm.hpp"
aoqi@0 210 #endif
aoqi@0 211 #ifdef TARGET_ARCH_ppc
aoqi@0 212 # include "templateInterpreter_ppc.hpp"
aoqi@0 213 #endif
aoqi@0 214
aoqi@0 215
aoqi@0 216 };
aoqi@0 217
aoqi@0 218 #endif // !CC_INTERP
aoqi@0 219
aoqi@0 220 #endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP

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