Em Sat, Oct 31, 2020 at 09:29:20PM +0100, Jiri Olsa escreveu:
> On Fri, Oct 30, 2020 at 04:54:31PM -0700, Song Liu wrote:
> > Making perf with gcc-9.1.1 generates the following warning:
> >
> > CC ui/browsers/hists.o
> > ui/browsers/hists.c: In function 'perf_evsel__hists_browse':
> > ui/browsers/hists.c:3078:61: error: '%d' directive output may be \
> > truncated writing between 1 and 11 bytes into a region of size \
> > between 2 and 12 [-Werror=format-truncation=]
> >
> > 3078 | "Max event group index to sort is %d (index from 0 to %d)",
> > | ^~
> > ui/browsers/hists.c:3078:7: note: directive argument in the range [-2147483648, 8]
> > 3078 | "Max event group index to sort is %d (index from 0 to %d)",
> > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > In file included from /usr/include/stdio.h:937,
> > from ui/browsers/hists.c:5:
> >
> > IOW, the string in line 3078 might be too long for buf[] of 64 bytes.
> >
> > Fix this by increasing the size of buf[] to 128.
> >
> > Fixes: dbddf1747441 ("perf report/top TUI: Support hotkeys to let user select any event for sorting")
> > Cc: stable <stable@xxxxxxxxxxxxxxx> # v5.7+
> > Cc: Jin Yao <yao.jin@xxxxxxxxxxxxxxx>
> > Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
> > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> > Signed-off-by: Song Liu <songliubraving@xxxxxx>
>
> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Thanks, applied.
- Arnaldo
