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    Subject[PATCH 26/45] perf stat record: Do not allow record with multiple runs mode
    Date
    We currently don't support storing multiple session in perf.data,
    so we can't allow -r option in stat record.

    $ perf stat -e cycles -r 2 record ls
    Cannot use -r option with perf stat record.

    Link: http://lkml.kernel.org/n/tip-wulio303py16c5hbbo8zrib6@git.kernel.org
    Signed-off-by: Jiri Olsa <jolsa@kernel.org>
    ---
    tools/perf/builtin-stat.c | 5 +++++
    1 file changed, 5 insertions(+)

    diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
    index 06ed78179686..5d53f7d1a2d4 100644
    --- a/tools/perf/builtin-stat.c
    +++ b/tools/perf/builtin-stat.c
    @@ -1315,6 +1315,11 @@ static int __cmd_record(int argc, const char **argv)
    argc = parse_options(argc, argv, options, record_usage,
    PARSE_OPT_STOP_AT_NON_OPTION);

    + if (run_count != 1 || forever) {
    + pr_err("Cannot use -r option with perf stat record.\n");
    + return -1;
    + }
    +
    session = perf_session__new(file, false, NULL);
    if (session == NULL) {
    pr_err("Perf session creation failed.\n");
    --
    2.4.3


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