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Date: Tue, 3 Jun 2014 20:55:05 +0200 From: Jiri Olsa <jolsa@...hat.com> To: Namhyung Kim <namhyung@...nel.org> Cc: Arnaldo Carvalho de Melo <acme@...nel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Ingo Molnar <mingo@...nel.org>, Paul Mackerras <paulus@...ba.org>, Namhyung Kim <namhyung.kim@....com>, LKML <linux-kernel@...r.kernel.org>, Tom Zanussi <tzanussi@...il.com>, Sebastian Andrzej Siewior <bigeasy@...utronix.de> Subject: Re: [PATCH] perf script/python: Print array argument as string On Thu, May 29, 2014 at 01:44:55PM +0900, Namhyung Kim wrote: > With the Sebastian's change of handling num array argument (of raw > syscall enter), the script still failed to work like this: > > $ perf record -e raw_syscalls:* sleep 1 > $ perf script -g python > $ perf script -s perf-script.py > ... > Traceback (most recent call last): > File "perf-script.py", line 42, in raw_syscalls__sys_enter > (id, args), > TypeError: %u format: a number is required, not list > Fatal Python error: problem in Python trace event handler > Aborted (core dumped) > > This is because the generated script tries to print the array arg as > unsigned integer (%u). Since the python seems to convert arguments to > strings by default, just using %s solved the problem for me. > > Cc: Tom Zanussi <tzanussi@...il.com> > Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de> > Signed-off-by: Namhyung Kim <namhyung@...nel.org> ack/test anyone? ;-) thanks, jirka > --- > tools/perf/util/scripting-engines/trace-event-python.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c > index 40a815a5360b..a22ab53788bf 100644 > --- a/tools/perf/util/scripting-engines/trace-event-python.c > +++ b/tools/perf/util/scripting-engines/trace-event-python.c > @@ -649,6 +649,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile) > fprintf(ofp, "%s=", f->name); > if (f->flags & FIELD_IS_STRING || > f->flags & FIELD_IS_FLAG || > + f->flags & FIELD_IS_ARRAY || > f->flags & FIELD_IS_SYMBOLIC) > fprintf(ofp, "%%s"); > else if (f->flags & FIELD_IS_SIGNED) > -- > 1.9.2 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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