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    SubjectRe: [PATCH v4 2/3] Support for perf to probe into SDT markers:
    Hi Pekka,

    > >
    > > You can now use it in all perf tools, such as:
    > >
    > > perf record -e libc:my_event -aR sleep 1
    >
    > Is there a technical reason why 'perf list' could not show all the
    > available SDT markers on a system and that the 'market to event'
    > mapping cannot happen automatically?
    >

    Technically feasible. But then we would have to parse each of the
    libraries and executables to list them. Right? I am not sure if such a
    delay is acceptable.

    Also if a binary exists in a path thats is not covered in the default
    search, an user might believe that his binary may not have markers.
    I know the above reason is more of a user folly than a tooling issue.

    > So instead of doing all the command line magic above I'd do:
    >
    > perf list
    >
    > libc:setjmp [SDT marker]
    >
    > and I could just do
    >
    > perf record -e libc:setjmp -AR sleep 1
    >
    > ?

    --
    Thanks and Regards
    Srikar Dronamraju



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