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authorMarcin Nowakowski <marcin.nowakowski@imgtec.com>2016-10-06 10:52:12 +0300
committerJonathan Corbet <corbet@lwn.net>2016-10-21 23:54:35 +0300
commit7058763b3f1ca6086d2be8f23a6c2a7c645077f2 (patch)
tree50c87f494c5874812d553bcdcc58b836179bf40d /Documentation/trace
parent58af04dff742b6b49fae3de585bdea8c77b62ddc (diff)
downloadlinux-7058763b3f1ca6086d2be8f23a6c2a7c645077f2.tar.xz
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: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/trace')
-rw-r--r--Documentation/trace/uprobetracer.txt6
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/trace/uprobetracer.txt b/Documentation/trace/uprobetracer.txt
index 94b6b4581763..fa7b680ee8a0 100644
--- a/Documentation/trace/uprobetracer.txt
+++ b/Documentation/trace/uprobetracer.txt
@@ -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: