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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 EfficiOS Inc., Alexandre Montplaisir | |
3 | * | |
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 | |
03bd936a AM |
8 | *******************************************************************************/ |
9 | ||
10 | package org.eclipse.tracecompass.internal.analysis.os.linux.core.kernelanalysis; | |
11 | ||
03bd936a AM |
12 | /** |
13 | * Definitions of values used in the Linux kernel code. | |
14 | * | |
15 | * Instead of using "magic numbers" in state providers, the definitions should | |
16 | * be added here first. | |
17 | * | |
18 | * @author Alexandre Montplaisir | |
19 | */ | |
20 | @SuppressWarnings("javadoc") | |
03bd936a AM |
21 | public interface LinuxValues { |
22 | ||
94383285 | 23 | /** |
03bd936a AM |
24 | * Process states found in scheduler events. |
25 | * | |
26 | * From include/linux/sched.h | |
27 | * | |
94383285 | 28 | * <pre> |
03bd936a AM |
29 | * #define TASK_RUNNING 0 |
30 | * #define TASK_INTERRUPTIBLE 1 | |
31 | * #define TASK_UNINTERRUPTIBLE 2 | |
32 | * #define __TASK_STOPPED 4 | |
33 | * #define __TASK_TRACED 8 | |
34 | * #define EXIT_DEAD 16 | |
35 | * #define EXIT_ZOMBIE 32 | |
36 | * #define EXIT_TRACE (EXIT_ZOMBIE | EXIT_DEAD) | |
37 | * #define TASK_DEAD 64 | |
38 | * #define TASK_WAKEKILL 128 | |
39 | * #define TASK_WAKING 256 | |
40 | * #define TASK_PARKED 512 | |
41 | * #define TASK_STATE_MAX 1024 | |
94383285 | 42 | * </pre> |
03bd936a | 43 | */ |
2bfc6622 | 44 | /** |
2f693965 AM |
45 | * The task is running normally, can be interrupted, in a syscall or user |
46 | * mode. | |
2bfc6622 | 47 | */ |
03bd936a | 48 | int TASK_STATE_RUNNING = 0; |
2f693965 AM |
49 | |
50 | int TASK_INTERRUPTIBLE = 1; | |
51 | ||
52 | int TASK_UNINTERRUPTIBLE = 2; | |
53 | ||
2bfc6622 MK |
54 | /** |
55 | * The task is dead, that means the PID can be re-used. | |
56 | */ | |
2f693965 AM |
57 | int TASK_DEAD = 64; |
58 | ||
2bfc6622 | 59 | /** |
2f693965 AM |
60 | * This is the maximum value + 1 that the task state can be. TASK_STATE_MAX |
61 | * - 1 is useful to mask the task state. | |
2bfc6622 | 62 | */ |
03bd936a AM |
63 | int TASK_STATE_MAX = 1024; |
64 | ||
94383285 | 65 | /** |
03bd936a AM |
66 | * Process statuses, used in LTTng statedump events. |
67 | * | |
68 | * This is LTTng-specific, but the statedump are handled at this level, so | |
69 | * it makes sense to add those definitions here. | |
70 | * | |
71 | * Taken from lttng-module's lttng-statedump-impl.c: | |
72 | * | |
94383285 | 73 | * <pre> |
03bd936a AM |
74 | * enum lttng_process_status { |
75 | * LTTNG_UNNAMED = 0, | |
76 | * LTTNG_WAIT_FORK = 1, | |
77 | * LTTNG_WAIT_CPU = 2, | |
78 | * LTTNG_EXIT = 3, | |
79 | * LTTNG_ZOMBIE = 4, | |
80 | * LTTNG_WAIT = 5, | |
81 | * LTTNG_RUN = 6, | |
82 | * LTTNG_DEAD = 7, | |
83 | * }; | |
94383285 | 84 | * </pre> |
03bd936a | 85 | */ |
94383285 FG |
86 | |
87 | /** Task is initially preempted */ | |
03bd936a | 88 | int STATEDUMP_PROCESS_STATUS_WAIT_CPU = 2; |
94383285 FG |
89 | |
90 | /** Task is initially blocked */ | |
03bd936a | 91 | int STATEDUMP_PROCESS_STATUS_WAIT = 5; |
02993d57 FG |
92 | |
93 | /** | |
94 | * SoftIRQ definitions | |
95 | * | |
96 | * From linux/interrupt.h | |
97 | * <pre> | |
98 | * enum | |
99 | * { | |
100 | * HI_SOFTIRQ=0, | |
101 | * TIMER_SOFTIRQ, | |
102 | * NET_TX_SOFTIRQ, | |
103 | * NET_RX_SOFTIRQ, | |
104 | * BLOCK_SOFTIRQ, | |
105 | * BLOCK_IOPOLL_SOFTIRQ, | |
106 | * TASKLET_SOFTIRQ, | |
107 | * SCHED_SOFTIRQ, | |
108 | * HRTIMER_SOFTIRQ, | |
109 | * RCU_SOFTIRQ, | |
110 | * NR_SOFTIRQS // not used as this is the NUMBER of softirqs | |
111 | * }; | |
112 | * </pre> | |
113 | */ | |
114 | ||
115 | /** High-priority tasklet */ | |
116 | int SOFTIRQ_HI = 0; | |
117 | ||
118 | /** Interrupted because of timer */ | |
119 | int SOFTIRQ_TIMER = 1; | |
120 | ||
121 | /** Interrupted because of network transmission */ | |
122 | int SOFTIRQ_NET_TX = 2; | |
123 | ||
124 | /** Interrupted because of network reception */ | |
125 | int SOFTIRQ_NET_RX = 3; | |
126 | ||
127 | /** Interrupted because of block operation */ | |
128 | int SOFTIRQ_BLOCK = 4; | |
129 | ||
130 | /** Interrupted because of block IO */ | |
131 | int SOFTIRQ_BLOCK_IOPOLL = 5; | |
132 | ||
133 | /** Tasklet (differed device interrupt) */ | |
134 | int SOFTIRQ_TASKLET = 6; | |
135 | ||
136 | /** Interrupted because of the scheduler */ | |
137 | int SOFTIRQ_SCHED = 7; | |
138 | ||
139 | /** Interrupted because of HR timer */ | |
140 | int SOFTIRQ_HRTIMER = 8; | |
141 | ||
142 | /** Interrupted because of RCU */ | |
143 | int SOFTIRQ_RCU = 9; | |
144 | ||
03bd936a | 145 | } |