Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/utilities/dtrace.hpp@c96030fff130
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
1 /*
2 * Copyright 2005-2007 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 #if defined(SOLARIS) && defined(DTRACE_ENABLED)
27 #include <sys/sdt.h>
29 #define DTRACE_ONLY(x) x
30 #define NOT_DTRACE(x)
32 #else // ndef SOLARIS || ndef DTRACE_ENABLED
34 #define DTRACE_ONLY(x)
35 #define NOT_DTRACE(x) x
37 #define DTRACE_PROBE(a,b) {;}
38 #define DTRACE_PROBE1(a,b,c) {;}
39 #define DTRACE_PROBE2(a,b,c,d) {;}
40 #define DTRACE_PROBE3(a,b,c,d,e) {;}
41 #define DTRACE_PROBE4(a,b,c,d,e,f) {;}
42 #define DTRACE_PROBE5(a,b,c,d,e,f,g) {;}
44 #endif
46 #define HS_DTRACE_PROBE_FN(provider,name)\
47 __dtrace_##provider##___##name
49 #define HS_DTRACE_PROBE_DECL_N(provider,name,args) \
50 DTRACE_ONLY(extern "C" void HS_DTRACE_PROBE_FN(provider,name) args)
51 #define HS_DTRACE_PROBE_CDECL_N(provider,name,args) \
52 DTRACE_ONLY(extern void HS_DTRACE_PROBE_FN(provider,name) args)
54 /* Dtrace probe declarations */
55 #define HS_DTRACE_PROBE_DECL(provider,name) \
56 HS_DTRACE_PROBE_DECL0(provider,name)
57 #define HS_DTRACE_PROBE_DECL0(provider,name)\
58 HS_DTRACE_PROBE_DECL_N(provider,name,(void))
59 #define HS_DTRACE_PROBE_DECL1(provider,name,t0)\
60 HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t))
61 #define HS_DTRACE_PROBE_DECL2(provider,name,t0,t1)\
62 HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t,uintptr_t))
63 #define HS_DTRACE_PROBE_DECL3(provider,name,t0,t1,t2)\
64 HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t,uintptr_t,uintptr_t))
65 #define HS_DTRACE_PROBE_DECL4(provider,name,t0,t1,t2,t3)\
66 HS_DTRACE_PROBE_DECL_N(provider,name,(uintptr_t,uintptr_t,uintptr_t,\
67 uintptr_t))
68 #define HS_DTRACE_PROBE_DECL5(provider,name,t0,t1,t2,t3,t4)\
69 HS_DTRACE_PROBE_DECL_N(provider,name,(\
70 uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t))
71 #define HS_DTRACE_PROBE_DECL6(provider,name,t0,t1,t2,t3,t4,t5)\
72 HS_DTRACE_PROBE_DECL_N(provider,name,(\
73 uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t))
74 #define HS_DTRACE_PROBE_DECL7(provider,name,t0,t1,t2,t3,t4,t5,t6)\
75 HS_DTRACE_PROBE_DECL_N(provider,name,(\
76 uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t))
77 #define HS_DTRACE_PROBE_DECL8(provider,name,t0,t1,t2,t3,t4,t5,t6,t7)\
78 HS_DTRACE_PROBE_DECL_N(provider,name,(\
79 uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,\
80 uintptr_t))
81 #define HS_DTRACE_PROBE_DECL9(provider,name,t0,t1,t2,t3,t4,t5,t6,t7,t8)\
82 HS_DTRACE_PROBE_DECL_N(provider,name,(\
83 uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,\
84 uintptr_t,uintptr_t))
85 #define HS_DTRACE_PROBE_DECL10(provider,name,t0,t1,t2,t3,t4,t5,t6,t7,t8,t9)\
86 HS_DTRACE_PROBE_DECL_N(provider,name,(\
87 uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,uintptr_t,\
88 uintptr_t,uintptr_t,uintptr_t))
90 /* Dtrace probe definitions */
91 #define HS_DTRACE_PROBE_N(provider,name, args) \
92 DTRACE_ONLY(HS_DTRACE_PROBE_FN(provider,name) args)
94 #define HS_DTRACE_PROBE(provider,name) HS_DTRACE_PROBE0(provider,name)
95 #define HS_DTRACE_PROBE0(provider,name)\
96 HS_DTRACE_PROBE_N(provider,name,())
97 #define HS_DTRACE_PROBE1(provider,name,a0)\
98 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0))
99 #define HS_DTRACE_PROBE2(provider,name,a0,a1)\
100 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1))
101 #define HS_DTRACE_PROBE3(provider,name,a0,a1,a2)\
102 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2))
103 #define HS_DTRACE_PROBE4(provider,name,a0,a1,a2,a3)\
104 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
105 (uintptr_t)a3))
106 #define HS_DTRACE_PROBE5(provider,name,a0,a1,a2,a3,a4)\
107 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
108 (uintptr_t)a3,(uintptr_t)a4))
109 #define HS_DTRACE_PROBE6(provider,name,a0,a1,a2,a3,a4,a5)\
110 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
111 (uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5))
112 #define HS_DTRACE_PROBE7(provider,name,a0,a1,a2,a3,a4,a5,a6)\
113 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
114 (uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6))
115 #define HS_DTRACE_PROBE8(provider,name,a0,a1,a2,a3,a4,a5,a6,a7)\
116 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
117 (uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6,(uintptr_t)a7))
118 #define HS_DTRACE_PROBE9(provider,name,a0,a1,a2,a3,a4,a5,a6,a7,a8)\
119 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
120 (uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6,(uintptr_t)a7,\
121 (uintptr_t)a8))
122 #define HS_DTRACE_PROBE10(provider,name,a0,a1,a2,a3,a4,a5,a6,a7,a8,a9)\
123 HS_DTRACE_PROBE_N(provider,name,((uintptr_t)a0,(uintptr_t)a1,(uintptr_t)a2,\
124 (uintptr_t)a3,(uintptr_t)a4,(uintptr_t)a5,(uintptr_t)a6,(uintptr_t)a7,\
125 (uintptr_t)a8,(uintptr_t)a9))
