• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/utilities/dtrace.hpp@c96030fff130 (annotated)

src/share/vm/utilities/dtrace.hpp

Thu, 20 Nov 2008 16:56:09 -0800

author

ysr

date

Thu, 20 Nov 2008 16:56:09 -0800

changeset 888

c96030fff130

parent 435

a61af66fc99e

child 1902

fb1a39993f69

permissions

-rw-r--r--

6684579: SoftReference processing can be made more efficient
Summary: For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not.
Reviewed-by: jmasa

duke@435	1	/*
duke@435	2	* Copyright 2005-2007 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	#if defined(SOLARIS) && defined(DTRACE_ENABLED)
duke@435	26
duke@435	27	#include <sys/sdt.h>
duke@435	28
duke@435	29	#define DTRACE_ONLY(x) x
duke@435	30	#define NOT_DTRACE(x)
duke@435	31
duke@435	32	#else // ndef SOLARIS || ndef DTRACE_ENABLED
duke@435	33
duke@435	34	#define DTRACE_ONLY(x)
duke@435	35	#define NOT_DTRACE(x) x
duke@435	36
duke@435	37	#define DTRACE_PROBE(a,b) {;}
duke@435	38	#define DTRACE_PROBE1(a,b,c) {;}
duke@435	39	#define DTRACE_PROBE2(a,b,c,d) {;}
duke@435	40	#define DTRACE_PROBE3(a,b,c,d,e) {;}
duke@435	41	#define DTRACE_PROBE4(a,b,c,d,e,f) {;}
duke@435	42	#define DTRACE_PROBE5(a,b,c,d,e,f,g) {;}
duke@435	43
duke@435	44	#endif
duke@435	45
duke@435	46	#define HS_DTRACE_PROBE_FN(provider,name)\
duke@435	47	__dtrace_##provider##___##name
duke@435	48
duke@435	49	#define HS_DTRACE_PROBE_DECL_N(provider,name,args) \
duke@435	50	DTRACE_ONLY(extern "C" void HS_DTRACE_PROBE_FN(provider,name) args)
duke@435	51	#define HS_DTRACE_PROBE_CDECL_N(provider,name,args) \
duke@435	52	DTRACE_ONLY(extern void HS_DTRACE_PROBE_FN(provider,name) args)
duke@435	53
duke@435	54	/* Dtrace probe declarations */
duke@435	55	#define HS_DTRACE_PROBE_DECL(provider,name) \
duke@435	56	HS_DTRACE_PROBE_DECL0(provider,name)
duke@435	57	#define HS_DTRACE_PROBE_DECL0(provider,name)\
duke@435	58	HS_DTRACE_PROBE_DECL_N(provider,name,(void))
duke@435	59	#define HS_DTRACE_PROBE_DECL1(provider,name,t0)\
duke@435	60	HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t))
duke@435	61	#define HS_DTRACE_PROBE_DECL2(provider,name,t0,t1)\
duke@435	62	HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t,uintptr_t))
duke@435	63	#define HS_DTRACE_PROBE_DECL3(provider,name,t0,t1,t2)\
duke@435	64	HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t,uintptr_t,uintptr_t))
duke@435	65	#define HS_DTRACE_PROBE_DECL4(provider,name,t0,t1,t2,t3)\
duke@435	66	HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t,uintptr_t,uintptr_t,\
duke@435	67	uintptr_t))
duke@435	68	#define HS_DTRACE_PROBE_DECL5(provider,name,t0,t1,t2,t3,t4)\
duke@435	69	HS_DTRACE_PROBE_DECL_N(provider,name,(\
duke@435	70	uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t))
duke@435	71	#define HS_DTRACE_PROBE_DECL6(provider,name,t0,t1,t2,t3,t4,t5)\
duke@435	72	HS_DTRACE_PROBE_DECL_N(provider,name,(\
duke@435	73	uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t))
duke@435	74	#define HS_DTRACE_PROBE_DECL7(provider,name,t0,t1,t2,t3,t4,t5,t6)\
duke@435	75	HS_DTRACE_PROBE_DECL_N(provider,name,(\
duke@435	76	uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t))
duke@435	77	#define HS_DTRACE_PROBE_DECL8(provider,name,t0,t1,t2,t3,t4,t5,t6,t7)\
duke@435	78	HS_DTRACE_PROBE_DECL_N(provider,name,(\
duke@435	79	uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,\
duke@435	80	uintptr_t))
duke@435	81	#define HS_DTRACE_PROBE_DECL9(provider,name,t0,t1,t2,t3,t4,t5,t6,t7,t8)\
duke@435	82	HS_DTRACE_PROBE_DECL_N(provider,name,(\
duke@435	83	uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,\
duke@435	84	uintptr_t,uintptr_t))
duke@435	85	#define HS_DTRACE_PROBE_DECL10(provider,name,t0,t1,t2,t3,t4,t5,t6,t7,t8,t9)\
duke@435	86	HS_DTRACE_PROBE_DECL_N(provider,name,(\
duke@435	87	uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,\
duke@435	88	uintptr_t,uintptr_t,uintptr_t))
duke@435	89
duke@435	90	/* Dtrace probe definitions */
duke@435	91	#define HS_DTRACE_PROBE_N(provider,name, args) \
duke@435	92	DTRACE_ONLY(HS_DTRACE_PROBE_FN(provider,name) args)
duke@435	93
duke@435	94	#define HS_DTRACE_PROBE(provider,name) HS_DTRACE_PROBE0(provider,name)
duke@435	95	#define HS_DTRACE_PROBE0(provider,name)\
duke@435	96	HS_DTRACE_PROBE_N(provider,name,())
duke@435	97	#define HS_DTRACE_PROBE1(provider,name,a0)\
duke@435	98	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0))
duke@435	99	#define HS_DTRACE_PROBE2(provider,name,a0,a1)\
duke@435	100	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1))
duke@435	101	#define HS_DTRACE_PROBE3(provider,name,a0,a1,a2)\
duke@435	102	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2))
duke@435	103	#define HS_DTRACE_PROBE4(provider,name,a0,a1,a2,a3)\
duke@435	104	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	105	(uintptr_t)a3))
duke@435	106	#define HS_DTRACE_PROBE5(provider,name,a0,a1,a2,a3,a4)\
duke@435	107	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	108	(uintptr_t)a3,(uintptr_t)a4))
duke@435	109	#define HS_DTRACE_PROBE6(provider,name,a0,a1,a2,a3,a4,a5)\
duke@435	110	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	111	(uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5))
duke@435	112	#define HS_DTRACE_PROBE7(provider,name,a0,a1,a2,a3,a4,a5,a6)\
duke@435	113	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	114	(uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6))
duke@435	115	#define HS_DTRACE_PROBE8(provider,name,a0,a1,a2,a3,a4,a5,a6,a7)\
duke@435	116	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	117	(uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6,(uintptr_t)a7))
duke@435	118	#define HS_DTRACE_PROBE9(provider,name,a0,a1,a2,a3,a4,a5,a6,a7,a8)\
duke@435	119	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	120	(uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6,(uintptr_t)a7,\
duke@435	121	(uintptr_t)a8))
duke@435	122	#define HS_DTRACE_PROBE10(provider,name,a0,a1,a2,a3,a4,a5,a6,a7,a8,a9)\
duke@435	123	HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
duke@435	124	(uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6,(uintptr_t)a7,\
duke@435	125	(uintptr_t)a8,(uintptr_t)a9))