linux-kernel - Re: [PATCH 3/3] perf annotate browser: Add '<' and '>' keys for navigation

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Message-ID: <CAP-5=fV+LFcMRwHPZUrq=MpOZVp8Q+4vEVKGTQg3rLREfJsg1w@mail.gmail.com>
Date:   Mon, 15 May 2023 10:09:08 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 3/3] perf annotate browser: Add '<' and '>' keys for navigation

On Wed, May 10, 2023 at 11:27 PM Namhyung Kim <namhyung@...nel.org> wrote:
>
> The hists__find_annotations() allow to move to next or previous symbols
> for annotation using the arrow keys.  But TUI annotate_browser__run()
> uses the RIGHT key as ENTER to handle jump/call instructions.  That
> makes the navigation to the next function impossible.
>
> I'd like to change it back to move the next symbol but I'm afraid if
> some users get confused.  So I added a new pair of keys to handle that.
>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>

Acked-by: Ian Rogers <irogers@...gle.com>

Thanks,
Ian

> ---
>  tools/perf/builtin-annotate.c     | 4 +++-
>  tools/perf/ui/browsers/annotate.c | 4 +++-
>  2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
> index 63cdf6ea6f6d..425a7e2fd6fb 100644
> --- a/tools/perf/builtin-annotate.c
> +++ b/tools/perf/builtin-annotate.c
> @@ -342,7 +342,7 @@ static void hists__find_annotations(struct hists *hists,
>                 notes = symbol__annotation(he->ms.sym);
>                 if (notes->src == NULL) {
>  find_next:
> -                       if (key == K_LEFT)
> +                       if (key == K_LEFT || key == '<')
>                                 nd = rb_prev(nd);
>                         else
>                                 nd = rb_next(nd);
> @@ -378,9 +378,11 @@ static void hists__find_annotations(struct hists *hists,
>                                         return;
>                                 /* fall through */
>                         case K_RIGHT:
> +                       case '>':
>                                 next = rb_next(nd);
>                                 break;
>                         case K_LEFT:
> +                       case '<':
>                                 next = rb_prev(nd);
>                                 break;
>                         default:
> diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> index 12c3ce530e42..70bad42b807b 100644
> --- a/tools/perf/ui/browsers/annotate.c
> +++ b/tools/perf/ui/browsers/annotate.c
> @@ -781,9 +781,9 @@ static int annotate_browser__run(struct annotate_browser *browser,
>                         ui_browser__help_window(&browser->b,
>                 "UP/DOWN/PGUP\n"
>                 "PGDN/SPACE    Navigate\n"
> +               "</>           Move to prev/next symbol\n"
>                 "q/ESC/CTRL+C  Exit\n\n"
>                 "ENTER         Go to target\n"
> -               "ESC           Exit\n"
>                 "H             Go to hottest instruction\n"
>                 "TAB/shift+TAB Cycle thru hottest instructions\n"
>                 "j             Toggle showing jump to target arrows\n"
> @@ -913,6 +913,8 @@ static int annotate_browser__run(struct annotate_browser *browser,
>                         annotation__toggle_full_addr(notes, ms);
>                         continue;
>                 case K_LEFT:
> +               case '<':
> +               case '>':
>                 case K_ESC:
>                 case 'q':
>                 case CTRL('c'):
> --
> 2.40.1.521.gf1e218fcd8-goog
>