linux-kernel - Re: [PATCH 4/4] perf annotate: Toggle full address <-> offset display

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Date:   Fri, 23 Sep 2022 16:22:19 -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>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org,
        Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 4/4] perf annotate: Toggle full address <-> offset display

On Fri, Sep 23, 2022 at 10:32 AM Namhyung Kim <namhyung@...nel.org> wrote:
>
> Handle 'f' key to toggle the display offset and full address.  Obviously
> it only works when users set to see disassembler output ('o' key).  It'd
> be useful when users want to see the full virtual address in the TUI
> annotate browser.
>
> Cc: Stephane Eranian <eranian@...gle.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>

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

Thanks,
Ian

> ---
>  tools/perf/ui/browsers/annotate.c |  6 +++++-
>  tools/perf/util/annotate.c        | 19 ++++++++++++++++++-
>  tools/perf/util/annotate.h        |  4 +++-
>  3 files changed, 26 insertions(+), 3 deletions(-)
>
> diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> index 9bc1076374ff..725662e21b23 100644
> --- a/tools/perf/ui/browsers/annotate.c
> +++ b/tools/perf/ui/browsers/annotate.c
> @@ -805,7 +805,8 @@ static int annotate_browser__run(struct annotate_browser *browser,
>                 "r             Run available scripts\n"
>                 "p             Toggle percent type [local/global]\n"
>                 "b             Toggle percent base [period/hits]\n"
> -               "?             Search string backwards\n");
> +               "?             Search string backwards\n"
> +               "f             Toggle showing offsets to full address\n");
>                         continue;
>                 case 'r':
>                         script_browse(NULL, NULL);
> @@ -912,6 +913,9 @@ static int annotate_browser__run(struct annotate_browser *browser,
>                         hists__scnprintf_title(hists, title, sizeof(title));
>                         annotate_browser__show(&browser->b, title, help);
>                         continue;
> +               case 'f':
> +                       annotation__toggle_full_addr(notes, ms);
> +                       continue;
>                 case K_LEFT:
>                 case K_ESC:
>                 case 'q':
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index 5bc63c9e0324..db475e44f42f 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -2239,7 +2239,10 @@ int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
>         }
>
>         args.ms = *ms;
> -       notes->start = map__rip_2objdump(ms->map, sym->start);
> +       if (notes->options && notes->options->full_addr)
> +               notes->start = map__objdump_2mem(ms->map, ms->sym->start);
> +       else
> +               notes->start = map__rip_2objdump(ms->map, ms->sym->start);
>
>         return symbol__disassemble(sym, &args);
>  }
> @@ -2762,6 +2765,8 @@ void annotation__update_column_widths(struct annotation *notes)
>  {
>         if (notes->options->use_offset)
>                 notes->widths.target = notes->widths.min_addr;
> +       else if (notes->options->full_addr)
> +               notes->widths.target = BITS_PER_LONG / 4;
>         else
>                 notes->widths.target = notes->widths.max_addr;
>
> @@ -2771,6 +2776,18 @@ void annotation__update_column_widths(struct annotation *notes)
>                 notes->widths.addr += notes->widths.jumps + 1;
>  }
>
> +void annotation__toggle_full_addr(struct annotation *notes, struct map_symbol *ms)
> +{
> +       notes->options->full_addr = !notes->options->full_addr;
> +
> +       if (notes->options->full_addr)
> +               notes->start = map__objdump_2mem(ms->map, ms->sym->start);
> +       else
> +               notes->start = map__rip_2objdump(ms->map, ms->sym->start);
> +
> +       annotation__update_column_widths(notes);
> +}
> +
>  static void annotation__calc_lines(struct annotation *notes, struct map *map,
>                                    struct rb_root *root,
>                                    struct annotation_options *opts)
> diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
> index 3cbd883e4d7a..8934072c39e6 100644
> --- a/tools/perf/util/annotate.h
> +++ b/tools/perf/util/annotate.h
> @@ -88,7 +88,8 @@ struct annotation_options {
>              show_nr_jumps,
>              show_minmax_cycle,
>              show_asm_raw,
> -            annotate_src;
> +            annotate_src,
> +            full_addr;
>         u8   offset_level;
>         int  min_pcnt;
>         int  max_lines;
> @@ -325,6 +326,7 @@ void annotation__compute_ipc(struct annotation *notes, size_t size);
>  void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym);
>  void annotation__update_column_widths(struct annotation *notes);
>  void annotation__init_column_widths(struct annotation *notes, struct symbol *sym);
> +void annotation__toggle_full_addr(struct annotation *notes, struct map_symbol *ms);
>
>  static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src, int idx)
>  {
> --
> 2.37.3.998.g577e59143f-goog
>