.. | .. |
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1 | 1 | #!/bin/sh |
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2 | 2 | # SPDX-License-Identifier: GPL-2.0 |
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3 | 3 | # description: event tracing - restricts events based on pid |
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| 4 | +# requires: set_event set_event_pid events/sched |
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4 | 5 | # flags: instance |
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5 | 6 | |
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6 | 7 | do_reset() { |
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.. | .. |
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16 | 17 | exit_fail |
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17 | 18 | } |
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18 | 19 | |
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19 | | -yield() { |
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20 | | - ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1 |
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21 | | -} |
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22 | | - |
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23 | | -if [ ! -f set_event -o ! -d events/sched ]; then |
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24 | | - echo "event tracing is not supported" |
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25 | | - exit_unsupported |
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26 | | -fi |
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27 | | - |
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28 | | -if [ ! -f set_event_pid ]; then |
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29 | | - echo "event pid filtering is not supported" |
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30 | | - exit_unsupported |
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31 | | -fi |
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32 | | - |
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33 | | -reset_tracer |
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34 | | -do_reset |
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| 20 | +echo 0 > options/event-fork |
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35 | 21 | |
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36 | 22 | echo 1 > events/sched/sched_switch/enable |
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37 | 23 | |
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.. | .. |
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47 | 33 | read mypid rest < /proc/self/stat |
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48 | 34 | |
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49 | 35 | echo $mypid > set_event_pid |
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| 36 | +grep -q $mypid set_event_pid |
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50 | 37 | echo 'sched:sched_switch' > set_event |
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51 | 38 | |
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52 | 39 | yield |
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