From: Andi Kleen <[email protected]> Add a precise qualifier, like cpu/event=0x3c,precise=1/
This is needed so that the kernel can request enabling PEBS for TSX events. The parser bails out on any sysfs parse errors, so this is needed in any case to handle any event on the TSX perf kernel. Signed-off-by: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Stephane Eranian <[email protected]> [ nit: changed subject line a bit] [ nit: fixed util/parse-events.l rebase fuzz ] Signed-off-by: Jiri Olsa <[email protected]> --- tools/perf/util/parse-events.c | 6 ++++++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 1 + 3 files changed, 8 insertions(+) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 8b712761..2e3ef10 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -568,6 +568,12 @@ do { \ case PARSE_EVENTS__TERM_TYPE_NAME: CHECK_TYPE_VAL(STR); break; + case PARSE_EVENTS__TERM_TYPE_PRECISE: + CHECK_TYPE_VAL(NUM); + if ((unsigned)term->val.num > 2) + return -EINVAL; + attr->precise_ip = term->val.num; + break; default: return -EINVAL; } diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 8a48593..13d7c66 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -48,6 +48,7 @@ enum { PARSE_EVENTS__TERM_TYPE_NAME, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE, + PARSE_EVENTS__TERM_TYPE_PRECISE, }; struct parse_events_term { diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index b36115f..11d4df3 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -167,6 +167,7 @@ config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); } name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); } period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); } branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); } +precise { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PRECISE); } , { return ','; } "/" { BEGIN(INITIAL); return '/'; } {name_minus} { return str(yyscanner, PE_NAME); } -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
