Re: [PATCH v5 01/10] perf tools: add parse events handle error

Arnaldo Carvalho de Melo
2019-11-06T14:29:24Z

Em Wed, Nov 06, 2019 at 03:06:50PM +0100, Jiri Olsa escreveu:
> On Wed, Oct 30, 2019 at 03:34:39PM -0700, Ian Rogers wrote:
> > Parse event error handling may overwrite one error string with another
> > creating memory leaks. Introduce a helper routine that warns about
> > multiple error messages as well as avoiding the memory leak.
> >
> > A reproduction of this problem can be seen with:
> > perf stat -e c/c/
> > After this change this produces:
> > WARNING: multiple event parsing errors
> > event syntax error: 'c/c/'
> > \___ unknown term
> >
> > valid terms: event,filter_rem,filter_opc0,edge,filter_isoc,filter_tid,filter_loc,filter_nc,inv,umask,filter_opc1,tid_en,thresh,filter_all_op,filter_not_nm,filter_state,filter_nm,config,config1,config2,name,period,percore
> > Run 'perf list' for a list of valid events
> >
> > Usage: perf stat [<options>] [<command>]
> >
> > -e, --event <event> event selector. use 'perf list' to list available events
> >
> > Signed-off-by: Ian Rogers <irogers@google.com>
>
> Acked-by: Jiri Olsa <jolsa@kernel.org>

Thanks, applied.

- Arnaldo