1 /*******************************************************************************
2 * Copyright (c) 2015 Ericsson
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * Matthew Khouzam - Initial API and implementation
11 *******************************************************************************/
13 package org
.lttng
.scope
.lttng
.kernel
.core
.analysis
.os
.handlers
.internal
;
15 import org
.eclipse
.tracecompass
.tmf
.core
.event
.ITmfEvent
;
16 import org
.lttng
.scope
.lttng
.kernel
.core
.analysis
.os
.Attributes
;
17 import org
.lttng
.scope
.lttng
.kernel
.core
.analysis
.os
.StateValues
;
18 import org
.lttng
.scope
.lttng
.kernel
.core
.trace
.layout
.ILttngKernelEventLayout
;
20 import ca
.polymtl
.dorsal
.libdelorean
.ITmfStateSystemBuilder
;
21 import ca
.polymtl
.dorsal
.libdelorean
.exceptions
.AttributeNotFoundException
;
22 import ca
.polymtl
.dorsal
.libdelorean
.statevalue
.ITmfStateValue
;
23 import ca
.polymtl
.dorsal
.libdelorean
.statevalue
.TmfStateValue
;
26 * System call entry handler
28 public class SysEntryHandler
extends KernelEventHandler
{
36 public SysEntryHandler(ILttngKernelEventLayout layout
) {
41 public void handleEvent(ITmfStateSystemBuilder ss
, ITmfEvent event
) throws AttributeNotFoundException
{
42 Integer cpu
= KernelEventHandlerUtils
.getCpu(event
);
46 /* Assign the new system call to the process */
47 int currentThreadNode
= KernelEventHandlerUtils
.getCurrentThreadNode(cpu
, ss
);
48 int quark
= ss
.getQuarkRelativeAndAdd(currentThreadNode
, Attributes
.SYSTEM_CALL
);
49 ITmfStateValue value
= TmfStateValue
.newValueString(event
.getName());
50 long timestamp
= KernelEventHandlerUtils
.getTimestamp(event
);
51 ss
.modifyAttribute(timestamp
, value
, quark
);
53 /* Put the process in system call mode */
54 value
= StateValues
.PROCESS_STATUS_RUN_SYSCALL_VALUE
;
55 ss
.modifyAttribute(timestamp
, value
, currentThreadNode
);
57 /* Put the CPU in system call (kernel) mode */
58 int currentCPUNode
= KernelEventHandlerUtils
.getCurrentCPUNode(cpu
, ss
);
59 value
= StateValues
.CPU_STATUS_RUN_SYSCALL_VALUE
;
60 ss
.modifyAttribute(timestamp
, value
, currentCPUNode
);