Mercurial > hg > truffle

annotate src/share/vm/runtime/dtraceJSDT.cpp @ 1145:e018e6884bd8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6631166: CMS: better heuristics when combatting fragmentation Summary: Autonomic per-worker free block cache sizing, tunable coalition policies, fixes to per-size block statistics, retuned gain and bandwidth of some feedback loop filters to allow quicker reactivity to abrupt changes in ambient demand, and other heuristics to reduce fragmentation of the CMS old gen. Also tightened some assertions, including those related to locking. Reviewed-by: jmasa
author ysr
date Wed, 23 Dec 2009 09:23:54 -0800
parents bd02caa94611
children c18cbe5936b8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
116
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
1 /*
844
bd02caa94611 6862919: Update copyright year
xdono
parents: 742
diff changeset
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
116
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
4 *
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
7 * published by the Free Software Foundation.
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
8 *
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
13 * accompanied this code).
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
14 *
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
18 *
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
20 * CA 95054 USA or visit www.sun.com if you need additional information or
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
21 * have any questions.
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
22 *
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
23 */
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
24
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
25 #include "incls/_precompiled.incl"
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
26 #include "incls/_dtraceJSDT.cpp.incl"
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
27
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
28 #ifdef HAVE_DTRACE_H
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
29
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
30 jlong DTraceJSDT::activate(
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
31 jint version, jstring module_name, jint providers_count,
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
32 JVM_DTraceProvider* providers, TRAPS) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
33
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
34 size_t count = 0;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
35 RegisteredProbes* probes = NULL;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
36
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
37 if (!is_supported()) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
38 return 0;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
39 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
40
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
41 assert(module_name != NULL, "valid module name");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
42 assert(providers != NULL, "valid provider array");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
43
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
44 for (int i = 0; i < providers_count; ++i) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
45 count += providers[i].probe_count;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
46 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
47 probes = new RegisteredProbes(count);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
48 count = 0;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
49
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
50 for (int i = 0; i < providers_count; ++i) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
51 assert(providers[i].name != NULL, "valid provider name");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
52 assert(providers[i].probe_count == 0 || providers[i].probes != NULL,
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
53 "valid probe count");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
54 for (int j = 0; j < providers[i].probe_count; ++j) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
55 JVM_DTraceProbe* probe = &(providers[i].probes[j]);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
56 assert(probe != NULL, "valid probe");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
57 assert(probe->method != NULL, "valid method");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
58 assert(probe->name != NULL, "valid probe name");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
59 assert(probe->function != NULL, "valid probe function spec");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
60 methodHandle h_method =
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
61 methodHandle(THREAD, JNIHandles::resolve_jmethod_id(probe->method));
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
62 nmethod* nm = AdapterHandlerLibrary::create_dtrace_nmethod(h_method);
742
45463a04ca27 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 196
diff changeset
63 if (nm == NULL) {
45463a04ca27 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 196
diff changeset
64 delete probes;
45463a04ca27 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 196
diff changeset
65 THROW_MSG_0(vmSymbols::java_lang_RuntimeException(),
45463a04ca27 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 196
diff changeset
66 "Unable to register DTrace probes (CodeCache: no room for DTrace nmethods).");
45463a04ca27 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 196
diff changeset
67 }
116
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
68 h_method()->set_not_compilable(CompLevel_highest_tier);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
69 h_method()->set_code(h_method, nm);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
70 probes->nmethod_at_put(count++, nm);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
71 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
72 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
73
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
74 int handle = pd_activate((void*)probes,
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
75 module_name, providers_count, providers);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
76 if (handle <= 0) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
77 delete probes;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
78 THROW_MSG_0(vmSymbols::java_lang_RuntimeException(),
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
79 "Unable to register DTrace probes (internal error).");
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
80 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
81 probes->set_helper_handle(handle);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
82 return RegisteredProbes::toOpaqueProbes(probes);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
83 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
84
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
85 jboolean DTraceJSDT::is_probe_enabled(jmethodID method) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
86 methodOop m = JNIHandles::resolve_jmethod_id(method);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
87 return nativeInstruction_at(m->code()->trap_address())->is_dtrace_trap();
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
88 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
89
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
90 void DTraceJSDT::dispose(OpaqueProbes probes) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
91 RegisteredProbes* p = RegisteredProbes::toRegisteredProbes(probes);
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
92 if (probes != -1 && p != NULL) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
93 pd_dispose(p->helper_handle());
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
94 delete p;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
95 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
96 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
97
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
98 jboolean DTraceJSDT::is_supported() {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
99 return pd_is_supported();
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
100 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
101
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
102 #else // HAVE_DTRACE_H
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
103
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
104 jlong DTraceJSDT::activate(
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
105 jint version, jstring module_name, jint providers_count,
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
106 JVM_DTraceProvider* providers, TRAPS) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
107 return 0;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
108 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
109
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
110 jboolean DTraceJSDT::is_probe_enabled(jmethodID method) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
111 return false;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
112 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
113
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
114 void DTraceJSDT::dispose(OpaqueProbes probes) {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
115 return;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
116 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
117
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
118 jboolean DTraceJSDT::is_supported() {
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
119 return false;
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
120 }
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
121
018d5b58dd4f 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
diff changeset
122 #endif // ndef HAVE_DTRACE_H