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    Subject[PATCH 20/44] perf trace beauty clone: Handle CLONE_PIDFD
    Date
    From: Arnaldo Carvalho de Melo <acme@redhat.com>

    In addition to the older flags. This will allow something like this to
    be implemented in 'perf trace"

    perf trace -e clone/PIDFD in flags/

    I.e. ask for strace like tracing, system wide, looking for 'clone'
    syscalls that have the CLONE_PIDFD bit set in the 'flags' arg.

    For now we'll just see PIDFD if it is set in the 'flags' arg.

    Cc: Christian Brauner <christian@brauner.io>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Link: https://lkml.kernel.org/n/tip-drq9h7s8gcv8b87064fp6lb0@git.kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/trace/beauty/clone.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/tools/perf/trace/beauty/clone.c b/tools/perf/trace/beauty/clone.c
    index 6eb9a6636171..1a8d3be2030e 100644
    --- a/tools/perf/trace/beauty/clone.c
    +++ b/tools/perf/trace/beauty/clone.c
    @@ -25,6 +25,7 @@ static size_t clone__scnprintf_flags(unsigned long flags, char *bf, size_t size,
    P_FLAG(FS);
    P_FLAG(FILES);
    P_FLAG(SIGHAND);
    + P_FLAG(PIDFD);
    P_FLAG(PTRACE);
    P_FLAG(VFORK);
    P_FLAG(PARENT);
    --
    2.20.1
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