From 864bc8c905261f264c3ea357027cf555fe51c5a3 Mon Sep 17 00:00:00 2001 From: John Garry Date: Mon, 17 Jan 2022 23:10:13 +0800 Subject: perf parse-events: Support event alias in form foo-bar-baz 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 [] [] -e, --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: John Garry Acked-by: Ian Rogers Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kajol Jain Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Qi Liu Cc: Shaokun Zhang Cc: linuxarm@huawei.com Link: https://lore.kernel.org/r/1642432215-234089-2-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/parse-events.l | 2 ++ 1 file changed, 2 insertions(+) (limited to 'tools/perf/util/parse-events.l') diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 4efe9872c667..5b6e4b5249cf 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -149,6 +149,8 @@ static int pmu_str_check(yyscan_t scanner, struct parse_events_state *parse_stat return PE_PMU_EVENT_PRE; case PMU_EVENT_SYMBOL_SUFFIX: return PE_PMU_EVENT_SUF; + case PMU_EVENT_SYMBOL_SUFFIX2: + return PE_PMU_EVENT_SUF2; case PMU_EVENT_SYMBOL: return parse_state->fake_pmu ? PE_PMU_EVENT_FAKE : PE_KERNEL_PMU_EVENT; -- cgit