• John Garry's avatar
    perf parse-events: Support event alias in form foo-bar-baz · 864bc8c9
    John Garry authored
    Event aliasing for events whose name in the form foo-bar-baz is not
    supported, while foo-bar, foo_bar_baz, and other combinations are, i.e.
    two hyphens are not supported.
    
    The HiSilicon D06 platform has events in such form:
    
      $ ./perf list sdir-home-migrate
    
      List of pre-defined events (to be used in -e):
    
      uncore hha:
        sdir-home-migrate
       [Unit: hisi_sccl,hha]
    
      $ sudo ./perf stat -e sdir-home-migrate
      event syntax error: 'sdir-home-migrate'
                              \___ parser error
      Run 'perf list' for a list of valid events
    
       Usage: perf stat [<options>] [<command>]
    
       -e, --event <event>event selector. use 'perf list' to list available events
    
    To support, add an extra PMU event symbol type for "baz", and add a new
    rule in the bison file.
    Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
    Acked-by: default avatarIan Rogers <irogers@google.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Kajol Jain <kjain@linux.ibm.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Qi Liu <liuqi115@huawei.com>
    Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
    Cc: linuxarm@huawei.com
    Link: https://lore.kernel.org/r/1642432215-234089-2-git-send-email-john.garry@huawei.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    864bc8c9
parse-events.y 18.5 KB