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Date: Mon, 3 Oct 2022 09:11:40 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Ian Rogers <irogers@...gle.com>,
Andi Kleen <ak@...ux.intel.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Alexander Antonov <alexander.antonov@...ux.intel.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Andrew Kilroy <andrew.kilroy@....com>,
Andrew Morton <akpm@...ux-foundation.org>,
Changbin Du <changbin.du@...el.com>,
Denys Zagorui <dzagorui@...co.com>,
Fabian Hemmer <copy@...y.sh>, Felix Fietkau <nbd@....name>,
Heiko Carstens <hca@...ux.ibm.com>,
Ingo Molnar <mingo@...hat.com>,
Jacob Keller <jacob.e.keller@...el.com>,
Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
Jin Yao <yao.jin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>,
Joakim Zhang <qiangqing.zhang@....com>,
John Garry <john.garry@...wei.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Kees Kook <keescook@...omium.org>,
Mark Rutland <mark.rutland@....com>,
Namhyung Kim <namhyung@...nel.org>,
Nicholas Fraser <nfraser@...eweavers.com>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Paul Clarke <pc@...ibm.com>,
Peter Zijlstra <peterz@...radead.org>,
Riccardo Mancini <rickyman7@...il.com>,
Sami Tolvanen <samitolvanen@...gle.com>,
ShihCheng Tu <mrtoastcheng@...il.com>,
Song Liu <songliubraving@...com>,
Stephane Eranian <eranian@...gle.com>,
Sumanth Korikkar <sumanthk@...ux.ibm.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Wan Jiabing <wanjiabing@...o.com>,
Zhen Lei <thunder.leizhen@...wei.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 75/83] perf parse-events: Identify broken modifiers
From: Ian Rogers <irogers@...gle.com>
[ Upstream commit eabd4523395e4a8f2b049165642801f2ab8ff893 ]
Previously the broken modifier causes a usage message to printed but
nothing else.
After:
$ perf stat -e 'cycles:kk' -a sleep 2
event syntax error: 'cycles:kk'
\___ Bad modifier
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
$ perf stat -e '{instructions,cycles}:kk' -a sleep 2
event syntax error: '..ns,cycles}:kk'
\___ Bad modifier
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
Signed-off-by: Ian Rogers <irogers@...gle.com>
Acked-by: Andi Kleen <ak@...ux.intel.com>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Alexander Antonov <alexander.antonov@...ux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Changbin Du <changbin.du@...el.com>
Cc: Denys Zagorui <dzagorui@...co.com>
Cc: Fabian Hemmer <copy@...y.sh>
Cc: Felix Fietkau <nbd@....name>
Cc: Heiko Carstens <hca@...ux.ibm.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Jacob Keller <jacob.e.keller@...el.com>
Cc: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc: Jin Yao <yao.jin@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Joakim Zhang <qiangqing.zhang@....com>
Cc: John Garry <john.garry@...wei.com>
Cc: Kajol Jain <kjain@...ux.ibm.com>
Cc: Kan Liang <kan.liang@...ux.intel.com>
Cc: Kees Kook <keescook@...omium.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Nicholas Fraser <nfraser@...eweavers.com>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Paul Clarke <pc@...ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Riccardo Mancini <rickyman7@...il.com>
Cc: Sami Tolvanen <samitolvanen@...gle.com>
Cc: ShihCheng Tu <mrtoastcheng@...il.com>
Cc: Song Liu <songliubraving@...com>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Sumanth Korikkar <sumanthk@...ux.ibm.com>
Cc: Thomas Richter <tmricht@...ux.ibm.com>
Cc: Wan Jiabing <wanjiabing@...o.com>
Cc: Zhen Lei <thunder.leizhen@...wei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-21-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Stable-dep-of: 71c86cda750b ("perf parse-events: Remove "not supported" hybrid cache events")
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
tools/perf/util/parse-events.y | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index d94e48e1ff9b..467a426205a0 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -183,6 +183,11 @@ group_def ':' PE_MODIFIER_EVENT
err = parse_events__modifier_group(list, $3);
free($3);
if (err) {
+ struct parse_events_state *parse_state = _parse_state;
+ struct parse_events_error *error = parse_state->error;
+
+ parse_events__handle_error(error, @3.first_column,
+ strdup("Bad modifier"), NULL);
free_list_evsel(list);
YYABORT;
}
@@ -240,6 +245,11 @@ event_name PE_MODIFIER_EVENT
err = parse_events__modifier_event(list, $2, false);
free($2);
if (err) {
+ struct parse_events_state *parse_state = _parse_state;
+ struct parse_events_error *error = parse_state->error;
+
+ parse_events__handle_error(error, @2.first_column,
+ strdup("Bad modifier"), NULL);
free_list_evsel(list);
YYABORT;
}
--
2.35.1
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