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@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: eranian@google.com, Ian Rogers <irogers@google.com>
Subject: [PATCH] perf: Move debug initialization earlier
Date: Wed, 19 May 2021 09:44:47 -0700 [thread overview]
Message-ID: <20210519164447.2672030-1-irogers@google.com> (raw)
This avoids segfaults during option handlers that use pr_err. For
example, "perf --debug nopager list" segfaults before this change.
Fixes: 8abceacff87d (perf debug: Add debug_set_file function)
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/perf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 20cb91ef06ff..2f6b67189b42 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -443,6 +443,8 @@ int main(int argc, const char **argv)
const char *cmd;
char sbuf[STRERR_BUFSIZE];
+ perf_debug_setup();
+
/* libsubcmd init */
exec_cmd_init("perf", PREFIX, PERF_EXEC_PATH, EXEC_PATH_ENVIRONMENT);
pager_init(PERF_PAGER_ENVIRONMENT);
@@ -531,8 +533,6 @@ int main(int argc, const char **argv)
*/
pthread__block_sigwinch();
- perf_debug_setup();
-
while (1) {
static int done_help;
--
2.31.1.751.gd2f1c929bd-goog
next reply other threads:[~2021-05-19 16:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-19 16:44 Ian Rogers [this message]
2021-05-27 15:51 ` [PATCH] perf: Move debug initialization earlier Ian Rogers
2021-05-27 16:25 ` Arnaldo Carvalho de Melo
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