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src/share/vm/interpreter/templateInterpreter.hpp@a9becfeecd1b (annotated)

src/share/vm/interpreter/templateInterpreter.hpp

Wed, 22 Jan 2014 17:42:23 -0800

author

kvn

date

Wed, 22 Jan 2014 17:42:23 -0800

changeset 6503

a9becfeecd1b

parent 6198

55fb97c4c58d

child 6876

710a3c8b516e

child 8368

32b682649973

permissions

-rw-r--r--

Merge

duke@435	1	/*
mikael@6198	2	* Copyright (c) 1997, 2013, 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_INTERPRETER_TEMPLATEINTERPRETER_HPP
stefank@2314	26	#define SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP
stefank@2314	27
stefank@2314	28	#include "interpreter/abstractInterpreter.hpp"
stefank@2314	29	#include "interpreter/templateTable.hpp"
stefank@2314	30
twisti@1040	31	// This file contains the platform-independent parts
duke@435	32	// of the template interpreter and the template interpreter generator.
duke@435	33
duke@435	34	#ifndef CC_INTERP
duke@435	35
duke@435	36	//------------------------------------------------------------------------------------------------------------------------
duke@435	37	// A little wrapper class to group tosca-specific entry points into a unit.
duke@435	38	// (tosca = Top-Of-Stack CAche)
duke@435	39
duke@435	40	class EntryPoint VALUE_OBJ_CLASS_SPEC {
duke@435	41	private:
duke@435	42	address _entry[number_of_states];
duke@435	43
duke@435	44	public:
duke@435	45	// Construction
duke@435	46	EntryPoint();
duke@435	47	EntryPoint(address bentry, address centry, address sentry, address aentry, address ientry, address lentry, address fentry, address dentry, address ventry);
duke@435	48
duke@435	49	// Attributes
duke@435	50	address entry(TosState state) const; // return target address for a given tosca state
duke@435	51	void set_entry(TosState state, address entry); // set target address for a given tosca state
duke@435	52	void print();
duke@435	53
duke@435	54	// Comparison
duke@435	55	bool operator == (const EntryPoint& y); // for debugging only
duke@435	56	};
duke@435	57
duke@435	58
duke@435	59	//------------------------------------------------------------------------------------------------------------------------
duke@435	60	// A little wrapper class to group tosca-specific dispatch tables into a unit.
duke@435	61
duke@435	62	class DispatchTable VALUE_OBJ_CLASS_SPEC {
duke@435	63	public:
duke@435	64	enum { length = 1 << BitsPerByte }; // an entry point for each byte value (also for undefined bytecodes)
duke@435	65
duke@435	66	private:
duke@435	67	address _table[number_of_states][length]; // dispatch tables, indexed by tosca and bytecode
duke@435	68
duke@435	69	public:
duke@435	70	// Attributes
duke@435	71	EntryPoint entry(int i) const; // return entry point for a given bytecode i
duke@435	72	void set_entry(int i, EntryPoint& entry); // set entry point for a given bytecode i
duke@435	73	address* table_for(TosState state) { return _table[state]; }
duke@435	74	address* table_for() { return table_for((TosState)0); }
duke@435	75	int distance_from(address *table) { return table - table_for(); }
duke@435	76	int distance_from(TosState state) { return distance_from(table_for(state)); }
duke@435	77
duke@435	78	// Comparison
duke@435	79	bool operator == (DispatchTable& y); // for debugging only
duke@435	80	};
duke@435	81
duke@435	82	class TemplateInterpreter: public AbstractInterpreter {
duke@435	83	friend class VMStructs;
duke@435	84	friend class InterpreterMacroAssembler;
duke@435	85	friend class TemplateInterpreterGenerator;
jrose@1145	86	friend class InterpreterGenerator;
duke@435	87	friend class TemplateTable;
duke@435	88	// friend class Interpreter;
duke@435	89	public:
duke@435	90
duke@435	91	enum MoreConstants {
jrose@1161	92	number_of_return_entries = number_of_states, // number of return entry points
jrose@1161	93	number_of_deopt_entries = number_of_states, // number of deoptimization entry points
jrose@1161	94	number_of_return_addrs = number_of_states // number of return addresses
duke@435	95	};
duke@435	96
duke@435	97	protected:
duke@435	98
duke@435	99	static address _throw_ArrayIndexOutOfBoundsException_entry;
duke@435	100	static address _throw_ArrayStoreException_entry;
duke@435	101	static address _throw_ArithmeticException_entry;
duke@435	102	static address _throw_ClassCastException_entry;
jrose@1145	103	static address _throw_WrongMethodType_entry;
duke@435	104	static address _throw_NullPointerException_entry;
duke@435	105	static address _throw_exception_entry;
duke@435	106
duke@435	107	static address _throw_StackOverflowError_entry;
duke@435	108
duke@435	109	static address _remove_activation_entry; // continuation address if an exception is not handled by current frame
duke@435	110	#ifdef HOTSWAP
duke@435	111	static address _remove_activation_preserving_args_entry; // continuation address when current frame is being popped
duke@435	112	#endif // HOTSWAP
duke@435	113
duke@435	114	#ifndef PRODUCT
duke@435	115	static EntryPoint _trace_code;
duke@435	116	#endif // !PRODUCT
duke@435	117	static EntryPoint _return_entry[number_of_return_entries]; // entry points to return to from a call
duke@435	118	static EntryPoint _earlyret_entry; // entry point to return early from a call
duke@435	119	static EntryPoint _deopt_entry[number_of_deopt_entries]; // entry points to return to from a deoptimization
duke@435	120	static EntryPoint _continuation_entry;
duke@435	121	static EntryPoint _safept_entry;
duke@435	122
twisti@6039	123	static address _invoke_return_entry[number_of_return_addrs]; // for invokestatic, invokespecial, invokevirtual return entries
twisti@6039	124	static address _invokeinterface_return_entry[number_of_return_addrs]; // for invokeinterface return entries
twisti@6039	125	static address _invokedynamic_return_entry[number_of_return_addrs]; // for invokedynamic return entries
duke@435	126
duke@435	127	static DispatchTable _active_table; // the active dispatch table (used by the interpreter for dispatch)
duke@435	128	static DispatchTable _normal_table; // the normal dispatch table (used to set the active table in normal mode)
duke@435	129	static DispatchTable _safept_table; // the safepoint dispatch table (used to set the active table for safepoints)
duke@435	130	static address _wentry_point[DispatchTable::length]; // wide instructions only (vtos tosca always)
duke@435	131
duke@435	132
duke@435	133	public:
duke@435	134	// Initialization/debugging
duke@435	135	static void initialize();
duke@435	136	// this only returns whether a pc is within generated code for the interpreter.
duke@435	137	static bool contains(address pc) { return _code != NULL && _code->contains(pc); }
duke@435	138
duke@435	139	public:
duke@435	140
duke@435	141	static address remove_activation_early_entry(TosState state) { return _earlyret_entry.entry(state); }
duke@435	142	#ifdef HOTSWAP
duke@435	143	static address remove_activation_preserving_args_entry() { return _remove_activation_preserving_args_entry; }
duke@435	144	#endif // HOTSWAP
duke@435	145
duke@435	146	static address remove_activation_entry() { return _remove_activation_entry; }
duke@435	147	static address throw_exception_entry() { return _throw_exception_entry; }
duke@435	148	static address throw_ArithmeticException_entry() { return _throw_ArithmeticException_entry; }
jrose@1145	149	static address throw_WrongMethodType_entry() { return _throw_WrongMethodType_entry; }
duke@435	150	static address throw_NullPointerException_entry() { return _throw_NullPointerException_entry; }
duke@435	151	static address throw_StackOverflowError_entry() { return _throw_StackOverflowError_entry; }
duke@435	152
duke@435	153	// Code generation
duke@435	154	#ifndef PRODUCT
duke@435	155	static address trace_code (TosState state) { return _trace_code.entry(state); }
duke@435	156	#endif // !PRODUCT
duke@435	157	static address continuation (TosState state) { return _continuation_entry.entry(state); }
duke@435	158	static address* dispatch_table(TosState state) { return _active_table.table_for(state); }
duke@435	159	static address* dispatch_table() { return _active_table.table_for(); }
duke@435	160	static int distance_from_dispatch_table(TosState state){ return _active_table.distance_from(state); }
duke@435	161	static address* normal_table(TosState state) { return _normal_table.table_for(state); }
duke@435	162	static address* normal_table() { return _normal_table.table_for(); }
duke@435	163
duke@435	164	// Support for invokes
twisti@6039	165	static address* invoke_return_entry_table() { return _invoke_return_entry; }
twisti@6039	166	static address* invokeinterface_return_entry_table() { return _invokeinterface_return_entry; }
twisti@6039	167	static address* invokedynamic_return_entry_table() { return _invokedynamic_return_entry; }
twisti@6039	168	static int TosState_as_index(TosState state);
duke@435	169
twisti@6039	170	static address* invoke_return_entry_table_for(Bytecodes::Code code);
twisti@6039	171
twisti@6039	172	static address deopt_entry(TosState state, int length);
twisti@6039	173	static address return_entry(TosState state, int length, Bytecodes::Code code);
duke@435	174
duke@435	175	// Safepoint support
duke@435	176	static void notice_safepoints(); // stops the thread when reaching a safepoint
duke@435	177	static void ignore_safepoints(); // ignores safepoints
duke@435	178
duke@435	179	// Deoptimization support
cfang@1335	180	// Compute the entry address for continuation after
coleenp@4037	181	static address deopt_continue_after_entry(Method* method,
cfang@1335	182	address bcp,
cfang@1335	183	int callee_parameters,
cfang@1335	184	bool is_top_frame);
cfang@1335	185	// Deoptimization should reexecute this bytecode
cfang@1335	186	static bool bytecode_should_reexecute(Bytecodes::Code code);
cfang@1335	187	// Compute the address for reexecution
coleenp@4037	188	static address deopt_reexecute_entry(Method* method, address bcp);
duke@435	189
stefank@2314	190	#ifdef TARGET_ARCH_x86
stefank@2314	191	# include "templateInterpreter_x86.hpp"
stefank@2314	192	#endif
stefank@2314	193	#ifdef TARGET_ARCH_sparc
stefank@2314	194	# include "templateInterpreter_sparc.hpp"
stefank@2314	195	#endif
stefank@2314	196	#ifdef TARGET_ARCH_zero
stefank@2314	197	# include "templateInterpreter_zero.hpp"
stefank@2314	198	#endif
bobv@2508	199	#ifdef TARGET_ARCH_arm
bobv@2508	200	# include "templateInterpreter_arm.hpp"
bobv@2508	201	#endif
bobv@2508	202	#ifdef TARGET_ARCH_ppc
bobv@2508	203	# include "templateInterpreter_ppc.hpp"
bobv@2508	204	#endif
stefank@2314	205
duke@435	206
duke@435	207	};
duke@435	208
duke@435	209	#endif // !CC_INTERP
stefank@2314	210
stefank@2314	211	#endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETER_HPP