linux-kernel - Re: [PATCH] perf annotate: Skip DSOs not found

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Date: Wed, 10 Apr 2024 12:14:37 -0700
From: Ian Rogers <irogers@...gle.com>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>, Kan Liang <kan.liang@...ux.intel.com>, 
	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
Subject: Re: [PATCH] perf annotate: Skip DSOs not found

On Wed, Apr 10, 2024 at 11:51 AM Namhyung Kim <namhyung@...nel.org> wrote:
>
> In some data file, I see the following messages repeated.  It seems it
> doesn't have DSOs in the system and the dso->binary_type is set to
> DSO_BINARY_TYPE__NOT_FOUND.  Let's skip them to avoid the followings.
>
>   No output from objdump  --start-address=0x0000000000000000 --stop-address=0x00000000000000d4  -d --no-show-raw-insn       -C "$1"
>   Error running objdump  --start-address=0x0000000000000000 --stop-address=0x0000000000000631  -d --no-show-raw-insn       -C "$1"
>   ...
>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>

Perhaps: Closes:
https://lore.kernel.org/linux-perf-users/15e1a2847b8cebab4de57fc68e033086aa6980ce.camel@yandex.ru/

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

Thanks,
Ian


> ---
>  tools/perf/util/disasm.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
> index a1219eb930aa..92937809be85 100644
> --- a/tools/perf/util/disasm.c
> +++ b/tools/perf/util/disasm.c
> @@ -1669,6 +1669,8 @@ int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
>                 return symbol__disassemble_bpf(sym, args);
>         } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
>                 return symbol__disassemble_bpf_image(sym, args);
> +       } else if (dso->binary_type == DSO_BINARY_TYPE__NOT_FOUND) {
> +               return -1;
>         } else if (dso__is_kcore(dso)) {
>                 kce.kcore_filename = symfs_filename;
>                 kce.addr = map__rip_2objdump(map, sym->start);
> --
> 2.44.0.478.gd926399ef9-goog
>