Hello,
I am trying to understand user space profiling either using linux inbuilt mechanism (sysfs). Have gone through URL:
https://opensource.com/article/17/7/...comment-136366.
Now, my question is
when there are no debug trace probe points enabled in /sys/kernel/debug/tracing/uprobe_events , I am not able to set /sys/kernel/debug/tracing/events/enable to 1 and if I try to set it to 1, it is getting set to 'X', which I dont understand. Check below:
root@bbr:/home/bbr/xxxxxxxx/out# echo 1 > /sys/kernel/debug/tracing/events/enable
root@bbr:/home/bbr/work/xxxxxxxxxxxxx/out# cat /sys/kernel/debug/tracing/events/enable
X
I think
...events/enable is a master setting which should be able to be set to
1 and for enabling uprobes in particular, there is separate parameter available at
/sys/kernel/debug/tracing/events/uprobes/enable . Kindly correct my understanding.
Regards,
Bhargav
