linux-kernel - [tip: perf/core] perf annotate: Fix objdump --no-show-raw-insn flag

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Message-ID: <157169995483.29376.7991382178457422946.tip-bot2@tip-bot2>
Date:   Mon, 21 Oct 2019 23:19:14 -0000
From:   "tip-bot2 for Ian Rogers" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Ian Rogers <irogers@...gle.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Song Liu <songliubraving@...com>,
        Stephane Eranian <eranian@...gle.com>,
        clang-built-linux@...glegroups.com,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org
Subject: [tip: perf/core] perf annotate: Fix objdump --no-show-raw-insn flag

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     c5baf9089246c1356705c9ba36d767ee8ce43dd2
Gitweb:        https://git.kernel.org/tip/c5baf9089246c1356705c9ba36d767ee8ce43dd2
Author:        Ian Rogers <irogers@...gle.com>
AuthorDate:    Thu, 10 Oct 2019 11:36:49 -07:00
Committer:     Arnaldo Carvalho de Melo <acme@...hat.com>
CommitterDate: Tue, 15 Oct 2019 08:39:42 -03:00

perf annotate: Fix objdump --no-show-raw-insn flag

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.

Signed-off-by: Ian Rogers <irogers@...gle.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Jin Yao <yao.jin@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Song Liu <songliubraving@...com>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: clang-built-linux@...glegroups.com
Link: http://lore.kernel.org/lkml/20191010183649.23768-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.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 efc5bfe..eef8aa8 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1966,13 +1966,13 @@ 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) {