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src/share/vm/c1/c1_Runtime1.hpp@a61af66fc99e (annotated)

src/share/vm/c1/c1_Runtime1.hpp

Sat, 01 Dec 2007 00:00:00 +0000

author

duke

date

Sat, 01 Dec 2007 00:00:00 +0000

changeset 435

a61af66fc99e

child 777

37f87013dfd8

permissions

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duke@435	1	/*
duke@435	2	* Copyright 1999-2007 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	class StubAssembler;
duke@435	26
duke@435	27	// The Runtime1 holds all assembly stubs and VM
duke@435	28	// runtime routines needed by code code generated
duke@435	29	// by the Compiler1.
duke@435	30
duke@435	31	#define RUNTIME1_STUBS(stub, last_entry) \
duke@435	32	stub(dtrace_object_alloc) \
duke@435	33	stub(unwind_exception) \
duke@435	34	stub(forward_exception) \
duke@435	35	stub(throw_range_check_failed) /* throws ArrayIndexOutOfBoundsException */ \
duke@435	36	stub(throw_index_exception) /* throws IndexOutOfBoundsException */ \
duke@435	37	stub(throw_div0_exception) \
duke@435	38	stub(throw_null_pointer_exception) \
duke@435	39	stub(register_finalizer) \
duke@435	40	stub(new_instance) \
duke@435	41	stub(fast_new_instance) \
duke@435	42	stub(fast_new_instance_init_check) \
duke@435	43	stub(new_type_array) \
duke@435	44	stub(new_object_array) \
duke@435	45	stub(new_multi_array) \
duke@435	46	stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \
duke@435	47	stub(handle_exception) \
duke@435	48	stub(throw_array_store_exception) \
duke@435	49	stub(throw_class_cast_exception) \
duke@435	50	stub(throw_incompatible_class_change_error) \
duke@435	51	stub(slow_subtype_check) \
duke@435	52	stub(monitorenter) \
duke@435	53	stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \
duke@435	54	stub(monitorexit) \
duke@435	55	stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \
duke@435	56	stub(access_field_patching) \
duke@435	57	stub(load_klass_patching) \
duke@435	58	stub(jvmti_exception_throw) \
duke@435	59	stub(fpu2long_stub) \
duke@435	60	stub(counter_overflow) \
duke@435	61	last_entry(number_of_ids)
duke@435	62
duke@435	63	#define DECLARE_STUB_ID(x) x ## _id ,
duke@435	64	#define DECLARE_LAST_STUB_ID(x) x
duke@435	65	#define STUB_NAME(x) #x " Runtime1 stub",
duke@435	66	#define LAST_STUB_NAME(x) #x " Runtime1 stub"
duke@435	67
duke@435	68	class Runtime1: public AllStatic {
duke@435	69	friend class VMStructs;
duke@435	70	friend class ArrayCopyStub;
duke@435	71	private:
duke@435	72	static int desired_max_code_buffer_size() {
duke@435	73	return (int) NMethodSizeLimit; // default 256K or 512K
duke@435	74	}
duke@435	75	static int desired_max_constant_size() {
duke@435	76	return (int) NMethodSizeLimit / 10; // about 25K
duke@435	77	}
duke@435	78
duke@435	79	// Note: This buffers is allocated once at startup since allocation
duke@435	80	// for each compilation seems to be too expensive (at least on Intel
duke@435	81	// win32).
duke@435	82	static BufferBlob* _buffer_blob;
duke@435	83
duke@435	84	public:
duke@435	85	enum StubID {
duke@435	86	RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
duke@435	87	};
duke@435	88
duke@435	89	// statistics
duke@435	90	#ifndef PRODUCT
duke@435	91	static int _resolve_invoke_cnt;
duke@435	92	static int _handle_wrong_method_cnt;
duke@435	93	static int _ic_miss_cnt;
duke@435	94	static int _generic_arraycopy_cnt;
duke@435	95	static int _primitive_arraycopy_cnt;
duke@435	96	static int _oop_arraycopy_cnt;
duke@435	97	static int _arraycopy_slowcase_cnt;
duke@435	98	static int _new_type_array_slowcase_cnt;
duke@435	99	static int _new_object_array_slowcase_cnt;
duke@435	100	static int _new_instance_slowcase_cnt;
duke@435	101	static int _new_multi_array_slowcase_cnt;
duke@435	102	static int _monitorenter_slowcase_cnt;
duke@435	103	static int _monitorexit_slowcase_cnt;
duke@435	104	static int _patch_code_slowcase_cnt;
duke@435	105	static int _throw_range_check_exception_count;
duke@435	106	static int _throw_index_exception_count;
duke@435	107	static int _throw_div0_exception_count;
duke@435	108	static int _throw_null_pointer_exception_count;
duke@435	109	static int _throw_class_cast_exception_count;
duke@435	110	static int _throw_incompatible_class_change_error_count;
duke@435	111	static int _throw_array_store_exception_count;
duke@435	112	static int _throw_count;
duke@435	113	#endif
duke@435	114
duke@435	115	private:
duke@435	116	static bool _is_initialized;
duke@435	117	static CodeBlob* _blobs[number_of_ids];
duke@435	118	static const char* _blob_names[];
duke@435	119
duke@435	120	// stub generation
duke@435	121	static void generate_blob_for(StubID id);
duke@435	122	static OopMapSet* generate_code_for(StubID id, StubAssembler* masm);
duke@435	123	static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
duke@435	124	static void generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map, bool ignore_fpu_registers = false);
duke@435	125	static void generate_unwind_exception(StubAssembler *sasm);
duke@435	126	static OopMapSet* generate_patching(StubAssembler* sasm, address target);
duke@435	127
duke@435	128	static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
duke@435	129	Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
duke@435	130
duke@435	131	// runtime entry points
duke@435	132	static void new_instance (JavaThread* thread, klassOopDesc* klass);
duke@435	133	static void new_type_array (JavaThread* thread, klassOopDesc* klass, jint length);
duke@435	134	static void new_object_array(JavaThread* thread, klassOopDesc* klass, jint length);
duke@435	135	static void new_multi_array (JavaThread* thread, klassOopDesc* klass, int rank, jint* dims);
duke@435	136
duke@435	137	#ifdef TIERED
duke@435	138	static void counter_overflow(JavaThread* thread, int bci);
duke@435	139	#endif // TIERED
duke@435	140
duke@435	141	static void unimplemented_entry (JavaThread* thread, StubID id);
duke@435	142
duke@435	143	static address exception_handler_for_pc(JavaThread* thread);
duke@435	144	static void post_jvmti_exception_throw(JavaThread* thread);
duke@435	145
duke@435	146	static void throw_range_check_exception(JavaThread* thread, int index);
duke@435	147	static void throw_index_exception(JavaThread* thread, int index);
duke@435	148	static void throw_div0_exception(JavaThread* thread);
duke@435	149	static void throw_null_pointer_exception(JavaThread* thread);
duke@435	150	static void throw_class_cast_exception(JavaThread* thread, oopDesc* obect);
duke@435	151	static void throw_incompatible_class_change_error(JavaThread* thread);
duke@435	152	static void throw_array_store_exception(JavaThread* thread);
duke@435	153
duke@435	154	static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
duke@435	155	static void monitorexit (JavaThread* thread, BasicObjectLock* lock);
duke@435	156
duke@435	157	static int access_field_patching(JavaThread* thread);
duke@435	158	static int move_klass_patching(JavaThread* thread);
duke@435	159
duke@435	160	static void patch_code(JavaThread* thread, StubID stub_id);
duke@435	161
duke@435	162	public:
duke@435	163	static BufferBlob* get_buffer_blob();
duke@435	164	static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate);
duke@435	165
duke@435	166	// initialization
duke@435	167	static bool is_initialized() { return _is_initialized; }
duke@435	168	static void initialize();
duke@435	169	static void initialize_pd();
duke@435	170
duke@435	171	// stubs
duke@435	172	static CodeBlob* blob_for (StubID id);
duke@435	173	static address entry_for(StubID id) { return blob_for(id)->instructions_begin(); }
duke@435	174	static const char* name_for (StubID id);
duke@435	175	static const char* name_for_address(address entry);
duke@435	176
duke@435	177	// method tracing
duke@435	178	static void trace_block_entry(jint block_id);
duke@435	179
duke@435	180	#ifndef PRODUCT
duke@435	181	static address throw_count_address() { return (address)&_throw_count; }
duke@435	182	#endif
duke@435	183
duke@435	184	// directly accessible leaf routine
duke@435	185	static int arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length);
duke@435	186	static void primitive_arraycopy(HeapWord* src, HeapWord* dst, int length);
duke@435	187	static void oop_arraycopy(HeapWord* src, HeapWord* dst, int length);
duke@435	188
duke@435	189	static void print_statistics() PRODUCT_RETURN;
duke@435	190	};