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    SubjectRe: [PATCH v2 04/19] perf, tools: Tighten detection of BPF events
    On Fri, Aug 11, 2017 at 04:26:19PM -0700, Andi Kleen wrote:
    > From: Andi Kleen <ak@linux.intel.com>
    >
    > perf stat -e cpu/uops_executed.core,cmask=1/
    >
    > would be detected as a BPF source event because the .c matches the .c
    > source BPF pattern.
    >
    > v2:
    >
    > Originally I tried to use lex lookahead, but it doesn't seem to work.
    >
    > This now extends the BPF pattern to match longer events, but then
    > does an extra check in the C code to reject BPF matches that
    > do not end with .c/.o/.obj
    >
    > This uses REJECT, which makes the flex scanner slower, but
    > that shouldn't be a big problem for the perf events.
    >
    > Signed-off-by: Andi Kleen <ak@linux.intel.com>

    seems ok, Arnaldo, could you run it with BPF/clang test machinery? ;-)

    thanks,
    jirka

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