diff -r 000000000000 -r f90c822e73f8 src/share/vm/interpreter/templateInterpreter.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/interpreter/templateInterpreter.hpp Wed Apr 27 01:25:04 2016 +0800 @@ -0,0 +1,211 @@ +/* + * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP +#define SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP + +#include "interpreter/abstractInterpreter.hpp" +#include "interpreter/templateTable.hpp" + +// This file contains the platform-independent parts +// of the template interpreter and the template interpreter generator. + +#ifndef CC_INTERP + +//------------------------------------------------------------------------------------------------------------------------ +// A little wrapper class to group tosca-specific entry points into a unit. +// (tosca = Top-Of-Stack CAche) + +class EntryPoint VALUE_OBJ_CLASS_SPEC { + private: + address _entry[number_of_states]; + + public: + // Construction + EntryPoint(); + EntryPoint(address bentry, address centry, address sentry, address aentry, address ientry, address lentry, address fentry, address dentry, address ventry); + + // Attributes + address entry(TosState state) const; // return target address for a given tosca state + void set_entry(TosState state, address entry); // set target address for a given tosca state + void print(); + + // Comparison + bool operator == (const EntryPoint& y); // for debugging only +}; + + +//------------------------------------------------------------------------------------------------------------------------ +// A little wrapper class to group tosca-specific dispatch tables into a unit. + +class DispatchTable VALUE_OBJ_CLASS_SPEC { + public: + enum { length = 1 << BitsPerByte }; // an entry point for each byte value (also for undefined bytecodes) + + private: + address _table[number_of_states][length]; // dispatch tables, indexed by tosca and bytecode + + public: + // Attributes + EntryPoint entry(int i) const; // return entry point for a given bytecode i + void set_entry(int i, EntryPoint& entry); // set entry point for a given bytecode i + address* table_for(TosState state) { return _table[state]; } + address* table_for() { return table_for((TosState)0); } + int distance_from(address *table) { return table - table_for(); } + int distance_from(TosState state) { return distance_from(table_for(state)); } + + // Comparison + bool operator == (DispatchTable& y); // for debugging only +}; + +class TemplateInterpreter: public AbstractInterpreter { + friend class VMStructs; + friend class InterpreterMacroAssembler; + friend class TemplateInterpreterGenerator; + friend class InterpreterGenerator; + friend class TemplateTable; + // friend class Interpreter; + public: + + enum MoreConstants { + number_of_return_entries = number_of_states, // number of return entry points + number_of_deopt_entries = number_of_states, // number of deoptimization entry points + number_of_return_addrs = number_of_states // number of return addresses + }; + + protected: + + static address _throw_ArrayIndexOutOfBoundsException_entry; + static address _throw_ArrayStoreException_entry; + static address _throw_ArithmeticException_entry; + static address _throw_ClassCastException_entry; + static address _throw_WrongMethodType_entry; + static address _throw_NullPointerException_entry; + static address _throw_exception_entry; + + static address _throw_StackOverflowError_entry; + + static address _remove_activation_entry; // continuation address if an exception is not handled by current frame +#ifdef HOTSWAP + static address _remove_activation_preserving_args_entry; // continuation address when current frame is being popped +#endif // HOTSWAP + +#ifndef PRODUCT + static EntryPoint _trace_code; +#endif // !PRODUCT + static EntryPoint _return_entry[number_of_return_entries]; // entry points to return to from a call + static EntryPoint _earlyret_entry; // entry point to return early from a call + static EntryPoint _deopt_entry[number_of_deopt_entries]; // entry points to return to from a deoptimization + static EntryPoint _continuation_entry; + static EntryPoint _safept_entry; + + static address _invoke_return_entry[number_of_return_addrs]; // for invokestatic, invokespecial, invokevirtual return entries + static address _invokeinterface_return_entry[number_of_return_addrs]; // for invokeinterface return entries + static address _invokedynamic_return_entry[number_of_return_addrs]; // for invokedynamic return entries + + static DispatchTable _active_table; // the active dispatch table (used by the interpreter for dispatch) + static DispatchTable _normal_table; // the normal dispatch table (used to set the active table in normal mode) + static DispatchTable _safept_table; // the safepoint dispatch table (used to set the active table for safepoints) + static address _wentry_point[DispatchTable::length]; // wide instructions only (vtos tosca always) + + + public: + // Initialization/debugging + static void initialize(); + // this only returns whether a pc is within generated code for the interpreter. + static bool contains(address pc) { return _code != NULL && _code->contains(pc); } + + public: + + static address remove_activation_early_entry(TosState state) { return _earlyret_entry.entry(state); } +#ifdef HOTSWAP + static address remove_activation_preserving_args_entry() { return _remove_activation_preserving_args_entry; } +#endif // HOTSWAP + + static address remove_activation_entry() { return _remove_activation_entry; } + static address throw_exception_entry() { return _throw_exception_entry; } + static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; } + static address throw_WrongMethodType_entry() { return _throw_WrongMethodType_entry; } + static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; } + static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; } + + // Code generation +#ifndef PRODUCT + static address trace_code (TosState state) { return _trace_code.entry(state); } +#endif // !PRODUCT + static address continuation (TosState state) { return _continuation_entry.entry(state); } + static address* dispatch_table(TosState state) { return _active_table.table_for(state); } + static address* dispatch_table() { return _active_table.table_for(); } + static int distance_from_dispatch_table(TosState state){ return _active_table.distance_from(state); } + static address* normal_table(TosState state) { return _normal_table.table_for(state); } + static address* normal_table() { return _normal_table.table_for(); } + + // Support for invokes + static address* invoke_return_entry_table() { return _invoke_return_entry; } + static address* invokeinterface_return_entry_table() { return _invokeinterface_return_entry; } + static address* invokedynamic_return_entry_table() { return _invokedynamic_return_entry; } + static int TosState_as_index(TosState state); + + static address* invoke_return_entry_table_for(Bytecodes::Code code); + + static address deopt_entry(TosState state, int length); + static address return_entry(TosState state, int length, Bytecodes::Code code); + + // Safepoint support + static void notice_safepoints(); // stops the thread when reaching a safepoint + static void ignore_safepoints(); // ignores safepoints + + // Deoptimization support + // Compute the entry address for continuation after + static address deopt_continue_after_entry(Method* method, + address bcp, + int callee_parameters, + bool is_top_frame); + // Deoptimization should reexecute this bytecode + static bool bytecode_should_reexecute(Bytecodes::Code code); + // Compute the address for reexecution + static address deopt_reexecute_entry(Method* method, address bcp); + +#ifdef TARGET_ARCH_x86 +# include "templateInterpreter_x86.hpp" +#endif +#ifdef TARGET_ARCH_sparc +# include "templateInterpreter_sparc.hpp" +#endif +#ifdef TARGET_ARCH_zero +# include "templateInterpreter_zero.hpp" +#endif +#ifdef TARGET_ARCH_arm +# include "templateInterpreter_arm.hpp" +#endif +#ifdef TARGET_ARCH_ppc +# include "templateInterpreter_ppc.hpp" +#endif + + +}; + +#endif // !CC_INTERP + +#endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP