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Date:   Mon,  3 Apr 2023 11:40:33 -0700
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Subject: [PATCH v2 4/4] perf srcline: Avoid addr2line SIGPIPEs
From:   Ian Rogers <irogers@google.com>
To:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Ian Rogers <irogers@google.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Tom Rix <trix@redhat.com>, linux-kernel@vger.kernel.org,
        linux-perf-users@vger.kernel.org, llvm@lists.linux.dev
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Precedence: bulk

Ignore SIGPIPEs when addr2line is configured.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/srcline.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index f4fcdada821b..cfca03abd6f8 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -473,6 +473,8 @@ static enum a2l_style addr2line_configure(struct child_process *a2l)
 				ch = io__get_char(&io);
 			} while (ch > 0 && ch != '\n');
 		}
+		/* Ignore SIGPIPE in the event addr2line exits. */
+		signal(SIGPIPE, SIG_IGN);
 	}
 	return style;
 }
-- 
2.40.0.348.gf938b09366-goog