linux-kernel - Re: [PATCH 5/5] perf annotate: fix objdump --no-show-raw-insn flag

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Message-ID: <20191014142424.GI19627@kernel.org>
Date:   Mon, 14 Oct 2019 11:24:24 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Ian Rogers <irogers@...gle.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Song Liu <songliubraving@...com>, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com,
        Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 5/5] perf annotate: fix objdump --no-show-raw-insn flag

Em Thu, Oct 10, 2019 at 11:36:49AM -0700, Ian Rogers escreveu:
> Remove redirection of objdump's stderr to /dev/null to help diagnose
> failures.
> Fix the '--no-show-raw' flag to be '--no-show-raw-insn' which binutils
> is permissive and allows, but fails with LLVM objdump.

Thanks, applied.

- Arnaldo
 
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
>  tools/perf/util/annotate.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index 3d5b9236576a..2a71c90a4921 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -1944,13 +1944,13 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
>  	err = asprintf(&command,
>  		 "%s %s%s --start-address=0x%016" PRIx64
>  		 " --stop-address=0x%016" PRIx64
> -		 " -l -d %s %s -C \"$1\" 2>/dev/null",
> +		 " -l -d %s %s -C \"$1\"",
>  		 opts->objdump_path ?: "objdump",
>  		 opts->disassembler_style ? "-M " : "",
>  		 opts->disassembler_style ?: "",
>  		 map__rip_2objdump(map, sym->start),
>  		 map__rip_2objdump(map, sym->end),
> -		 opts->show_asm_raw ? "" : "--no-show-raw",
> +		 opts->show_asm_raw ? "" : "--no-show-raw-insn",
>  		 opts->annotate_src ? "-S" : "");
>  
>  	if (err < 0) {
> -- 
> 2.23.0.581.g78d2f28ef7-goog

-- 

- Arnaldo