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perf session: Change type to avoid undefined behaviour in a signal handler 

The 'session_done' variable is written to inside the signal handler of
'perf report' and 'perf script'. Switch its type to avoid undefined
behavior.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20221024181913.630986-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-10-24 11:19:10 -07:00 committed by Arnaldo Carvalho de Melo
parent 853596fb71
commit 057929f9d0
1 changed files with 2 additions and 1 deletions
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3
tools/perf/util/session.c
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@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <signal.h>
#include <inttypes.h>
#include <linux/err.h>
#include <linux/kernel.h>
@ -2022,7 +2023,7 @@ static int perf_session__flush_thread_stacks(struct perf_session *session)
NULL);
}
volatile int session_done;
volatile sig_atomic_t session_done;
static int __perf_session__process_decomp_events(struct perf_session *session);