From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Borntraeger Subject: Re: [PATCH 1/3] perf tools: parse tracepooints with '-' in system name Date: Mon, 28 Apr 2014 09:27:54 +0200 Message-ID: <535E02FA.9050909@de.ibm.com> References: <1398440047-6641-1-git-send-email-yarygin@linux.vnet.ibm.com> <1398440047-6641-2-git-send-email-yarygin@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Alexander Yarygin , Arnaldo Carvalho de Melo , Peter Zijlstra , Paul Mackerras , Ingo Molnar , Paolo Bonzini , KVM , linux-s390 , Cornelia Huck , linux-kernel@vger.kernel.org To: Jiri Olsa Return-path: In-Reply-To: <1398440047-6641-2-git-send-email-yarygin@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 25/04/14 17:34, Alexander Yarygin wrote: > Trace events potentially can have a '-' in their trace system name, > e.g. kvm on s390 defines kvm-s390:* tracepoints. > tools/perf could not parse them, because there was no rule for this: > $ sudo ./perf top -e "kvm-s390:*" > invalid or unsupported event: 'kvm-s390:*' > > This patch adds an extra rule to event_legacy_tracepoint which handles > those cases. Without the patch, perf will not accept such tracepoints in > the -e option. > > Signed-off-by: Alexander Yarygin Tested-by: Christian Borntraeger Acked-by: Christian Borntraeger Jiri, please review and handle via your tree if ok. I gave the other two patches also a quick test on my s390 box. Seems to work fine. > --- > tools/perf/util/parse-events.y | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y > index 4eb67ec..ac9db9f 100644 > --- a/tools/perf/util/parse-events.y > +++ b/tools/perf/util/parse-events.y > @@ -299,6 +299,18 @@ PE_PREFIX_MEM PE_VALUE sep_dc > } > > event_legacy_tracepoint: > +PE_NAME '-' PE_NAME ':' PE_NAME > +{ > + struct parse_events_evlist *data = _data; > + struct list_head *list; > + char sys_name[128]; > + snprintf(&sys_name, 128, "%s-%s", $1, $3); > + > + ALLOC_LIST(list); > + ABORT_ON(parse_events_add_tracepoint(list, &data->idx, &sys_name, $5)); > + $$ = list; > +} > +| > PE_NAME ':' PE_NAME > { > struct parse_events_evlist *data = _data; >