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Commit 7058763b authored by Marcin Nowakowski's avatar Marcin Nowakowski Committed by Jonathan Corbet
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Documentation/trace/uprobetracer.txt: fix incorrect examples 



Current uprobetracer examples don't work as they use an incorrect syntax
- if no event name is specified then 'p/r' must not be followed by a
  colon
- if no event name is specified then the default event name will have a
  'p_' prefix, so use that in the '-' example as well

Signed-off-by: default avatarMarcin Nowakowski <marcin.nowakowski@imgtec.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 58af04df

Documentation/trace/uprobetracer.txt

+3 −3
Original line number Diff line number Diff line
@@ -76,15 +76,15 @@ Usage examples 
 * Add a probe as a new uprobe event, write a new definition to uprobe_events

as below: (sets a uprobe at an offset of 0x4245c0 in the executable /bin/bash)



    echo 'p: /bin/bash:0x4245c0' > /sys/kernel/debug/tracing/uprobe_events

    echo 'p /bin/bash:0x4245c0' > /sys/kernel/debug/tracing/uprobe_events



 * Add a probe as a new uretprobe event:



    echo 'r: /bin/bash:0x4245c0' > /sys/kernel/debug/tracing/uprobe_events

    echo 'r /bin/bash:0x4245c0' > /sys/kernel/debug/tracing/uprobe_events



 * Unset registered event:



    echo '-:bash_0x4245c0' >> /sys/kernel/debug/tracing/uprobe_events

    echo '-:p_bash_0x4245c0' >> /sys/kernel/debug/tracing/uprobe_events



 * Print out the events that are registered: