From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 38/46] perf tools: Fix pmu events parsing rule
Date: Tue, 5 Jun 2018 14:50:22 -0300 [thread overview]
Message-ID: <20180605175030.32549-39-acme@kernel.org> (raw)
In-Reply-To: <20180605175030.32549-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
Currently all the event parsing fails end up
in the event_pmu rule, and display misleading
help like:
$ perf stat -e inst kill
event syntax error: 'inst'
\___ Cannot find PMU `inst'. Missing kernel support?
...
The reason is that the event_pmu is too strong
and match also single string. Changing it to
force the '/' separators to be part of the rule,
and getting the proper error now:
$ perf stat -e inst kill
event syntax error: 'inst'
\___ parser error
Run 'perf list' for a list of valid events
...
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180605121416.31645-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/parse-events.y | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index e37608a87dba..155d2570274f 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -73,6 +73,7 @@ static void inc_group_count(struct list_head *list,
%type <num> value_sym
%type <head> event_config
%type <head> opt_event_config
+%type <head> opt_pmu_config
%type <term> event_term
%type <head> event_pmu
%type <head> event_legacy_symbol
@@ -224,7 +225,7 @@ event_def: event_pmu |
event_bpf_file
event_pmu:
-PE_NAME opt_event_config
+PE_NAME opt_pmu_config
{
struct list_head *list, *orig_terms, *terms;
@@ -496,6 +497,17 @@ opt_event_config:
$$ = NULL;
}
+opt_pmu_config:
+'/' event_config '/'
+{
+ $$ = $2;
+}
+|
+'/' '/'
+{
+ $$ = NULL;
+}
+
start_terms: event_config
{
struct parse_events_state *parse_state = _parse_state;
--
2.14.3
next prev parent reply other threads:[~2018-06-05 17:50 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-05 17:49 [GIT PULL 00/46] perf/core fixes and improvements Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 01/46] perf tools: Remove dead quote.[ch] code Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 02/46] perf probe: Use return of map__get() to make code more compact Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 03/46] perf cgroup: Make evlist__find_cgroup() " Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 04/46] perf tools: No need to check if the argument to __get() function is NULL Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 05/46] perf annotate: Pass perf_evsel instead of just evsel->idx Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 06/46] perf annotate: __symbol__acount_cycles doesn't need notes Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 07/46] perf annotate: Split allocation of annotated_source struct Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 08/46] perf annotate: Introduce constructor/destructor for annotated_source Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 09/46] perf annotate: Introduce annotated_source__alloc_histograms Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 10/46] perf annotate: __symbol__inc_addr_samples() needs just annotated_source Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 11/46] perf annotate: Introduce symbol__hists() Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 12/46] perf annotate: Introduce symbol__cycle_hists() Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 13/46] perf annotate: Stop using symbol_conf.nr_events global in symbol__hists() Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 14/46] perf annotate: Replace symbol__alloc_hists() with symbol__hists() Arnaldo Carvalho de Melo
2018-06-05 17:49 ` [PATCH 15/46] perf tools: Ditch the symbol_conf.nr_events global Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 16/46] perf annotate: Add comment about annotated_src->nr_histograms Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 17/46] perf annotate stdio: Use annotation_options consistently Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 18/46] perf srcline: Introduce map__srcline() to make code more compact Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 19/46] perf sort: Introduce addr_map_symbol__srcline() " Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 20/46] perf srcline: Make hist_entry srcline helper consistent with map's Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 21/46] perf annotate: Pass annotation_options to symbol__annotate() Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 22/46] perf annotate: Adopt anotation options from symbol_conf Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 23/46] perf annotate: Move disassembler_style global to annotation_options Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 24/46] perf hists browser: Pass annotation_options from tool to browser Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 25/46] perf annotate: Move objdump_path to struct annotation_options Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 26/46] perf test: Use header file util/debug.h Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 27/46] perf report: No need to have report_callchain_help as a global Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 28/46] perf evsel: Add has_callchain() helper to make code more compact/clear Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 29/46] perf script: Check if evsel has callchains before trying to use it Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 30/46] perf sched: Use sched->show_callchain where appropriate Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 31/46] perf hists: Do not allocate space for callchains for evsels without them Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 32/46] perf hists: Introduce hist_entry__has_callchain() method Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 33/46] perf hists: Check if a hist_entry has callchains before using them Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 34/46] perf tests kmod-path: Add tests for vdso32 and vdsox32 Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 35/46] perf tools: Fix symbol and object code resolution " Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 36/46] perf record: Enable arbitrary event names thru name= modifier Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 37/46] perf stat: Display user and system time Arnaldo Carvalho de Melo
2018-06-05 17:50 ` Arnaldo Carvalho de Melo [this message]
2018-06-05 17:50 ` [PATCH 39/46] perf test code-reading: Fix perf_env setup for PTI entry trampolines Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 40/46] perf map: Consider PTI entry trampolines in rip_2objdump() Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 41/46] perf test record+probe_libc_inet_pton: Ask 'nm' for dynamic symbols Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 42/46] perf script powerpc: Python script for hypervisor call statistics Arnaldo Carvalho de Melo
2018-06-06 14:53 ` Paul Clarke
2018-06-07 5:34 ` Ravi Bangoria
2018-06-07 13:41 ` Paul Clarke
2018-06-07 13:45 ` Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 43/46] perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 44/46] perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 45/46] perf intel-pt: Fix MTC timing after overflow Arnaldo Carvalho de Melo
2018-06-05 17:50 ` [PATCH 46/46] perf intel-pt: Fix "Unexpected indirect branch" error Arnaldo Carvalho de Melo
2018-06-07 5:22 ` [GIT PULL 00/46] perf/core fixes and improvements Ingo Molnar
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