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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 École Polytechnique de Montréal | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | *******************************************************************************/ | |
9 | ||
10 | package org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.handlers; | |
11 | ||
12 | import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelAnalysisEventLayout; | |
b3867ecc | 13 | import org.eclipse.tracecompass.common.core.NonNullUtils; |
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14 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.building.LttngKernelExecGraphProvider; |
15 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.building.LttngKernelExecGraphProvider.Context; | |
16 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.model.LttngInterruptContext; | |
17 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.model.LttngSystemModel; | |
18 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; | |
19 | import org.eclipse.tracecompass.tmf.core.event.aspect.TmfCpuAspect; | |
20 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
21 | ||
22 | /** | |
23 | * Event Handler to handle the interrupt context stack of the model | |
24 | * | |
25 | * @author Francis Giraldeau | |
26 | * @author Geneviève Bastien | |
27 | */ | |
28 | public class EventContextHandler extends BaseHandler { | |
29 | ||
30 | /** | |
31 | * Constructor | |
32 | * | |
33 | * @param provider | |
34 | * The parent graph provider | |
35 | */ | |
36 | public EventContextHandler(LttngKernelExecGraphProvider provider) { | |
37 | super(provider); | |
38 | } | |
39 | ||
40 | @Override | |
41 | public void handleEvent(ITmfEvent event) { | |
42 | String eventName = event.getName(); | |
5aa7fe19 | 43 | IKernelAnalysisEventLayout eventLayout = getProvider().getEventLayout(event.getTrace()); |
af7f72ce FG |
44 | if (eventName.equals(eventLayout.eventSoftIrqEntry())) { |
45 | handleSoftirqEntry(event); | |
46 | } else if (eventName.equals(eventLayout.eventSoftIrqExit())) { | |
47 | handleSoftirqExit(event); | |
48 | } else if (eventName.equals(eventLayout.eventHRTimerExpireEntry())) { | |
49 | handleHrtimerExpireEntry(event); | |
50 | } else if (eventName.equals(eventLayout.eventHRTimerExpireExit())) { | |
51 | handleHrtimerExpireExit(event); | |
52 | } else if (eventName.equals(eventLayout.eventIrqHandlerEntry())) { | |
53 | handleIrqHandlerEntry(event); | |
54 | } else if (eventName.equals(eventLayout.eventIrqHandlerExit())) { | |
55 | handleIrqHandlerExit(event); | |
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56 | } else if (isIpiEntry(event)) { |
57 | handleIpiEntry(event); | |
58 | } else if (isIpiExit(event)) { | |
59 | handleIpiExit(event); | |
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60 | } |
61 | } | |
62 | ||
63 | private void pushInterruptContext(ITmfEvent event, Context ctx) { | |
b3867ecc | 64 | Integer cpu = NonNullUtils.checkNotNull(TmfTraceUtils.resolveIntEventAspectOfClassForEvent(event.getTrace(), TmfCpuAspect.class, event)); |
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65 | LttngSystemModel system = getProvider().getSystem(); |
66 | ||
67 | LttngInterruptContext interruptCtx = new LttngInterruptContext(event, ctx); | |
68 | ||
69 | system.pushContextStack(event.getTrace().getHostId(), cpu, interruptCtx); | |
70 | } | |
71 | ||
72 | private void popInterruptContext(ITmfEvent event, Context ctx) { | |
b3867ecc | 73 | Integer cpu = NonNullUtils.checkNotNull(TmfTraceUtils.resolveIntEventAspectOfClassForEvent(event.getTrace(), TmfCpuAspect.class, event)); |
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74 | LttngSystemModel system = getProvider().getSystem(); |
75 | ||
76 | /* TODO: add a warning bookmark if the interrupt context is not coherent */ | |
77 | LttngInterruptContext interruptCtx = system.peekContextStack(event.getTrace().getHostId(), cpu); | |
78 | if (interruptCtx.getContext() == ctx) { | |
79 | system.popContextStack(event.getTrace().getHostId(), cpu); | |
80 | } | |
81 | } | |
82 | ||
83 | private void handleSoftirqEntry(ITmfEvent event) { | |
84 | pushInterruptContext(event, Context.SOFTIRQ); | |
85 | } | |
86 | ||
87 | private void handleSoftirqExit(ITmfEvent event) { | |
88 | popInterruptContext(event, Context.SOFTIRQ); | |
89 | } | |
90 | ||
91 | private void handleIrqHandlerEntry(ITmfEvent event) { | |
92 | pushInterruptContext(event, Context.IRQ); | |
93 | } | |
94 | ||
95 | private void handleIrqHandlerExit(ITmfEvent event) { | |
96 | popInterruptContext(event, Context.IRQ); | |
97 | } | |
98 | ||
99 | private void handleHrtimerExpireEntry(ITmfEvent event) { | |
100 | pushInterruptContext(event, Context.HRTIMER); | |
101 | } | |
102 | ||
103 | private void handleHrtimerExpireExit(ITmfEvent event) { | |
104 | popInterruptContext(event, Context.HRTIMER); | |
105 | } | |
106 | ||
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107 | private void handleIpiEntry(ITmfEvent event) { |
108 | pushInterruptContext(event, Context.IPI); | |
109 | } | |
110 | ||
111 | private void handleIpiExit(ITmfEvent event) { | |
112 | popInterruptContext(event, Context.IPI); | |
113 | } | |
114 | ||
af7f72ce | 115 | } |