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src/share/vm/interpreter/interpreterRuntime.hpp@ba764ed4b6f2 (annotated)

src/share/vm/interpreter/interpreterRuntime.hpp

Sun, 13 Apr 2008 17:43:42 -0400

author

coleenp

date

Sun, 13 Apr 2008 17:43:42 -0400

changeset 548

ba764ed4b6f2

parent 435

a61af66fc99e

child 631

d1605aabd0a1

permissions

-rw-r--r--

6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold

duke@435	1	/*
duke@435	2	* Copyright 1997-2007 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// The InterpreterRuntime is called by the interpreter for everything
duke@435	26	// that cannot/should not be dealt with in assembly and needs C support.
duke@435	27
duke@435	28	class InterpreterRuntime: AllStatic {
duke@435	29	friend class BytecodeClosure; // for method and bcp
duke@435	30	friend class PrintingClosure; // for method and bcp
duke@435	31
duke@435	32	private:
duke@435	33	// Helper functions to access current interpreter state
duke@435	34	static frame last_frame(JavaThread *thread) { return thread->last_frame(); }
duke@435	35	static methodOop method(JavaThread *thread) { return last_frame(thread).interpreter_frame_method(); }
duke@435	36	static address bcp(JavaThread *thread) { return last_frame(thread).interpreter_frame_bcp(); }
duke@435	37	static void set_bcp_and_mdp(address bcp, JavaThread*thread);
coleenp@548	38	static Bytecodes::Code code(JavaThread *thread) {
coleenp@548	39	// pass method to avoid calling unsafe bcp_to_method (partial fix 4926272)
coleenp@548	40	return Bytecodes::code_at(bcp(thread), method(thread));
coleenp@548	41	}
duke@435	42	static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
duke@435	43	static int one_byte_index(JavaThread *thread) { return bcp(thread)[1]; }
duke@435	44	static int two_byte_index(JavaThread *thread) { return Bytes::get_Java_u2(bcp(thread) + 1); }
duke@435	45	static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
duke@435	46	static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return method(thread)->constants()->cache()->entry_at(Bytes::get_native_u2(bcp(thread) + 1)); }
duke@435	47	static void note_trap(JavaThread *thread, int reason, TRAPS);
duke@435	48
duke@435	49	public:
duke@435	50	// Constants
duke@435	51	static void ldc (JavaThread* thread, bool wide);
duke@435	52
duke@435	53	// Allocation
duke@435	54	static void _new (JavaThread* thread, constantPoolOopDesc* pool, int index);
duke@435	55	static void newarray (JavaThread* thread, BasicType type, jint size);
duke@435	56	static void anewarray (JavaThread* thread, constantPoolOopDesc* pool, int index, jint size);
duke@435	57	static void multianewarray(JavaThread* thread, jint* first_size_address);
duke@435	58	static void register_finalizer(JavaThread* thread, oopDesc* obj);
duke@435	59
duke@435	60	// Quicken instance-of and check-cast bytecodes
duke@435	61	static void quicken_io_cc(JavaThread* thread);
duke@435	62
duke@435	63	// Exceptions thrown by the interpreter
duke@435	64	static void throw_AbstractMethodError(JavaThread* thread);
duke@435	65	static void throw_IncompatibleClassChangeError(JavaThread* thread);
duke@435	66	static void throw_StackOverflowError(JavaThread* thread);
duke@435	67	static void throw_ArrayIndexOutOfBoundsException(JavaThread* thread, char* name, jint index);
duke@435	68	static void throw_ClassCastException(JavaThread* thread, oopDesc* obj);
duke@435	69	static void create_exception(JavaThread* thread, char* name, char* message);
duke@435	70	static void create_klass_exception(JavaThread* thread, char* name, oopDesc* obj);
duke@435	71	static address exception_handler_for_exception(JavaThread* thread, oopDesc* exception);
duke@435	72	static void throw_pending_exception(JavaThread* thread);
duke@435	73
duke@435	74	// Statics & fields
duke@435	75	static void resolve_get_put(JavaThread* thread, Bytecodes::Code bytecode);
duke@435	76
duke@435	77	// Synchronization
duke@435	78	static void monitorenter(JavaThread* thread, BasicObjectLock* elem);
duke@435	79	static void monitorexit (JavaThread* thread, BasicObjectLock* elem);
duke@435	80
duke@435	81	static void throw_illegal_monitor_state_exception(JavaThread* thread);
duke@435	82	static void new_illegal_monitor_state_exception(JavaThread* thread);
duke@435	83
duke@435	84	// Calls
duke@435	85	static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
duke@435	86
duke@435	87	// Breakpoints
duke@435	88	static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);
duke@435	89	static Bytecodes::Code get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp);
duke@435	90	static void set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code);
duke@435	91	static bool is_breakpoint(JavaThread *thread) { return Bytecodes::code_or_bp_at(bcp(thread)) == Bytecodes::_breakpoint; }
duke@435	92
duke@435	93	// Safepoints
duke@435	94	static void at_safepoint(JavaThread* thread);
duke@435	95
duke@435	96	// Debugger support
duke@435	97	static void post_field_access(JavaThread *thread, oopDesc* obj,
duke@435	98	ConstantPoolCacheEntry *cp_entry);
duke@435	99	static void post_field_modification(JavaThread *thread, oopDesc* obj,
duke@435	100	ConstantPoolCacheEntry *cp_entry, jvalue *value);
duke@435	101	static void post_method_entry(JavaThread *thread);
duke@435	102	static void post_method_exit (JavaThread *thread);
duke@435	103	static int interpreter_contains(address pc);
duke@435	104
duke@435	105	// Native signature handlers
duke@435	106	static void prepare_native_call(JavaThread* thread, methodOopDesc* method);
duke@435	107	static address slow_signature_handler(JavaThread* thread,
duke@435	108	methodOopDesc* method,
duke@435	109	intptr_t* from, intptr_t* to);
duke@435	110
duke@435	111	#if defined(IA32) || defined(AMD64)
duke@435	112	// Popframe support (only needed on x86 and AMD64)
duke@435	113	static void popframe_move_outgoing_args(JavaThread* thread, void* src_address, void* dest_address);
duke@435	114	#endif
duke@435	115
duke@435	116	// Platform dependent stuff
duke@435	117	#include "incls/_interpreterRT_pd.hpp.incl"
duke@435	118
duke@435	119	// Interpreter's frequency counter overflow
duke@435	120	static nmethod* frequency_counter_overflow(JavaThread* thread, address branch_bcp);
duke@435	121
duke@435	122	// Interpreter profiling support
duke@435	123	static jint bcp_to_di(methodOopDesc* method, address cur_bcp);
duke@435	124	static jint profile_method(JavaThread* thread, address cur_bcp);
duke@435	125	static void update_mdp_for_ret(JavaThread* thread, int bci);
duke@435	126	#ifdef ASSERT
duke@435	127	static void verify_mdp(methodOopDesc* method, address bcp, address mdp);
duke@435	128	#endif // ASSERT
duke@435	129	};
duke@435	130
duke@435	131
duke@435	132	class SignatureHandlerLibrary: public AllStatic {
duke@435	133	public:
duke@435	134	enum { buffer_size = 1*K }; // the size of the temporary code buffer
duke@435	135	enum { blob_size = 32*K }; // the size of a handler code blob.
duke@435	136
duke@435	137	private:
duke@435	138	static BufferBlob* _handler_blob; // the current buffer blob containing the generated handlers
duke@435	139	static address _handler; // next available address within _handler_blob;
duke@435	140	static GrowableArray<uint64_t>* _fingerprints; // the fingerprint collection
duke@435	141	static GrowableArray<address>* _handlers; // the corresponding handlers
duke@435	142	static address _buffer; // the temporary code buffer
duke@435	143
duke@435	144	static address set_handler_blob();
duke@435	145	static void initialize();
duke@435	146	static address set_handler(CodeBuffer* buffer);
duke@435	147	static void pd_set_handler(address handler);
duke@435	148
duke@435	149	public:
duke@435	150	static void add(methodHandle method);
duke@435	151	};