linux-kernel - [PATCH 4/9] perf srcline: Skip srcline if .debug

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Date:   Thu, 15 Dec 2022 11:28:12 -0800
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>,
        Milian Wolff <milian.wolff@...b.com>,
        Leo Yan <leo.yan@...aro.org>
Subject: [PATCH 4/9] perf srcline: Skip srcline if .debug_line is missing

The srcline info is from the .debug_line section.  No need to setup
addr2line subprocess if the section is missing.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/srcline.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index 5319efb16a5a..2c212e2e1b65 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -550,6 +550,9 @@ static int addr2line(const char *dso_name, u64 addr,
 	size_t inline_count = 0;
 
 	if (!a2l) {
+		if (!filename__has_section(dso_name, ".debug_line"))
+			goto out;
+
 		dso->a2l = addr2line_subprocess_init(dso_name);
 		a2l = dso->a2l;
 	}
-- 
2.39.0.314.g84b9a713c41-goog