Mercurial > hg > truffle
annotate src/share/vm/services/dtraceAttacher.cpp @ 5763:a3d71693e0ce
removed bytecode disassembly from CodeCacheRuntime into separate BytecodeDisassembler class
removed VM call for doing bytecode disassembly
added support for explicitly excluding classes from JaCoCo (put '// JaCoCo Exclude' somewhere in the source file)
added node intrinsics to MaterializeNode
added snippets for the UnsignedMath classes
each file opened by CFGPrinter now includes a unique id in its name to avoid a race of multiple threads writing to the same file
the IdealGraphPrinter uses the new BytecodeDisassembler mechanism
teh UnsignedMath class is exclude from JaCoCo processing as it is used in snippets
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 04 Jul 2012 21:57:49 +0200 |
parents | f95d63e2154a |
children | 72b7e96c1922 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "code/codeCache.hpp" | |
27 #include "memory/resourceArea.hpp" | |
28 #include "runtime/deoptimization.hpp" | |
29 #include "runtime/vmThread.hpp" | |
30 #include "runtime/vm_operations.hpp" | |
31 #include "services/dtraceAttacher.hpp" | |
0 | 32 |
33 #ifdef SOLARIS | |
34 | |
35 class VM_DeoptimizeTheWorld : public VM_Operation { | |
36 public: | |
37 VMOp_Type type() const { | |
38 return VMOp_DeoptimizeTheWorld; | |
39 } | |
40 void doit() { | |
41 CodeCache::mark_all_nmethods_for_deoptimization(); | |
42 ResourceMark rm; | |
43 DeoptimizationMarker dm; | |
44 // Deoptimize all activations depending on marked methods | |
45 Deoptimization::deoptimize_dependents(); | |
46 | |
47 // Mark the dependent methods non entrant | |
48 CodeCache::make_marked_nmethods_not_entrant(); | |
49 } | |
50 }; | |
51 | |
52 static void set_bool_flag(const char* flag, bool value) { | |
53 CommandLineFlags::boolAtPut((char*)flag, strlen(flag), &value, | |
54 ATTACH_ON_DEMAND); | |
55 } | |
56 | |
57 // Enable only the "fine grained" flags. Do *not* touch | |
58 // the overall "ExtendedDTraceProbes" flag. | |
59 void DTrace::enable_dprobes(int probes) { | |
60 bool changed = false; | |
61 if (!DTraceAllocProbes && (probes & DTRACE_ALLOC_PROBES)) { | |
62 set_bool_flag("DTraceAllocProbes", true); | |
63 changed = true; | |
64 } | |
65 if (!DTraceMethodProbes && (probes & DTRACE_METHOD_PROBES)) { | |
66 set_bool_flag("DTraceMethodProbes", true); | |
67 changed = true; | |
68 } | |
69 if (!DTraceMonitorProbes && (probes & DTRACE_MONITOR_PROBES)) { | |
70 set_bool_flag("DTraceMonitorProbes", true); | |
71 changed = true; | |
72 } | |
73 | |
74 if (changed) { | |
75 // one or more flags changed, need to deoptimize | |
76 VM_DeoptimizeTheWorld op; | |
77 VMThread::execute(&op); | |
78 } | |
79 } | |
80 | |
81 // Disable only the "fine grained" flags. Do *not* touch | |
82 // the overall "ExtendedDTraceProbes" flag. | |
83 void DTrace::disable_dprobes(int probes) { | |
84 bool changed = false; | |
85 if (DTraceAllocProbes && (probes & DTRACE_ALLOC_PROBES)) { | |
86 set_bool_flag("DTraceAllocProbes", false); | |
87 changed = true; | |
88 } | |
89 if (DTraceMethodProbes && (probes & DTRACE_METHOD_PROBES)) { | |
90 set_bool_flag("DTraceMethodProbes", false); | |
91 changed = true; | |
92 } | |
93 if (DTraceMonitorProbes && (probes & DTRACE_MONITOR_PROBES)) { | |
94 set_bool_flag("DTraceMonitorProbes", false); | |
95 changed = true; | |
96 } | |
97 if (changed) { | |
98 // one or more flags changed, need to deoptimize | |
99 VM_DeoptimizeTheWorld op; | |
100 VMThread::execute(&op); | |
101 } | |
102 } | |
103 | |
104 // Do clean-up on "all door clients detached" event. | |
105 void DTrace::detach_all_clients() { | |
106 /* | |
107 * We restore the state of the fine grained flags | |
108 * to be consistent with overall ExtendedDTraceProbes. | |
109 * This way, we will honour command line setting or the | |
110 * last explicit modification of ExtendedDTraceProbes by | |
111 * a call to set_extended_dprobes. | |
112 */ | |
113 if (ExtendedDTraceProbes) { | |
114 enable_dprobes(DTRACE_ALL_PROBES); | |
115 } else { | |
116 disable_dprobes(DTRACE_ALL_PROBES); | |
117 } | |
118 } | |
119 | |
120 void DTrace::set_extended_dprobes(bool flag) { | |
121 // explicit setting of ExtendedDTraceProbes flag | |
122 set_bool_flag("ExtendedDTraceProbes", flag); | |
123 | |
124 // make sure that the fine grained flags reflect the change. | |
125 if (flag) { | |
126 enable_dprobes(DTRACE_ALL_PROBES); | |
127 } else { | |
128 /* | |
129 * FIXME: Revisit this: currently all-client-detach detection | |
130 * does not work and hence disabled. The following scheme does | |
131 * not work. So, we have to disable fine-grained flags here. | |
132 * | |
133 * disable_dprobes call has to be delayed till next "detach all "event. | |
134 * This is to be done so that concurrent DTrace clients that may | |
135 * have enabled one or more fine grained dprobes and may be running | |
136 * still. On "detach all" clients event, we would sync ExtendedDTraceProbes | |
137 * with fine grained flags which would take care of disabling fine grained flags. | |
138 */ | |
139 disable_dprobes(DTRACE_ALL_PROBES); | |
140 } | |
141 } | |
142 | |
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143 void DTrace::set_monitor_dprobes(bool flag) { |
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144 // explicit setting of DTraceMonitorProbes flag |
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145 set_bool_flag("DTraceMonitorProbes", flag); |
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146 } |
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147 |
0 | 148 #endif /* SOLARIS */ |