On Mon, Jul 17, 2017 at 03:10:36PM -0700, Arun Kalyanasundaram wrote:
> The process_event python hook receives a dict with all perf_sample entries.
> 
> Other handlers (e.g. trace_unhandled, python_process_tracepoint) predate the 
> introduction of this dict and do not receive it. This patch series adds the 
> dict to all handlers, aiming to unify the information passed to them.
> 
> This change adds an additional argument to the affected handlers. To keep 
> backwards compatibility (and avoid unnecessary work), do not pass the 
> aforementioned dict if the number of arguments signals that handler version 
> predates this change.
> 
> Initial Discussion: https://lkml.org/lkml/2017/7/1/108
> 
> Arun Kalyanasundaram (4):
>   perf script python: Allocate memory only if handler exists
>   perf script python: Refactor creation of perf sample dict
>   perf script python: Add perf_sample dict to tracepoint handlers
>   perf script python: Generate hooks with additional argument
> 
>  .../util/scripting-engines/trace-event-python.c    | 189 
> ++++++++++++++-------
>  1 file changed, 128 insertions(+), 61 deletions(-)

looks good, but any idea the perf-script.py output gives
some trash at the end of 'comm' args? like:

sched__sched_stat_runtime     1 199971.010182869    21999 perf                  
comm=perf^@^@-x86_64-l^@, pid=21999


thanks,
jirka

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