linux-kernel - [PATCH] perf annotate: Allow whitespace between insn operands

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Message-ID: <20230612230026.3887586-1-namhyung@kernel.org>
Date:   Mon, 12 Jun 2023 16:00:26 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ian Rogers <irogers@...gle.com>,
        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,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: [PATCH] perf annotate: Allow whitespace between insn operands

The llvm-objdump adds a space between the operands while GNU objdump
does not.  Allow a space to handle the both.

In GNU objdump:

  Disassembly of section .text:                                      here
                                                                      |
  ffffffff81000000 <_stext>:                                          v
  ffffffff81000000:	48 8d 25 51 1f 40 01 	lea    0x1401f51(%rip),%rsp
  ffffffff81000007:	e8 d4 00 00 00       	call   ffffffff810000e0 <verify_cpu>
  ffffffff8100000c:	48 8d 3d ed ff ff ff 	lea    -0x13(%rip),%rdi

In llvm-objdump:

  Disassembly of section .text:                                      here
                                                                       |
  ffffffff81000000 <startup_64>:                                       v
  ffffffff81000000: 48 8d 25 51 1f 40 01 	leaq	20979537(%rip), %rsp
  ffffffff81000007: e8 d4 00 00 00       	callq	0xffffffff810000e0 <verify_cpu>
  ffffffff8100000c: 48 8d 3d ed ff ff ff 	leaq	-19(%rip), %rdi

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/annotate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 9171102dd3ad..3eab6c29eaa5 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -585,7 +585,7 @@ static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_sy
 	if (ops->source.raw == NULL)
 		return -1;
 
-	target = ++s;
+	target = skip_spaces(++s);
 	comment = strchr(s, arch->objdump.comment_char);
 
 	if (comment != NULL)
-- 
2.41.0.162.gfafddb0af9-goog