From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758853Ab1D2O2I (ORCPT ); Fri, 29 Apr 2011 10:28:08 -0400 Received: from hera.kernel.org ([140.211.167.34]:39123 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751310Ab1D2O2F (ORCPT ); Fri, 29 Apr 2011 10:28:05 -0400 Date: Fri, 29 Apr 2011 14:27:47 GMT From: tip-bot for Ingo Molnar Message-ID: Cc: linux-kernel@vger.kernel.org, acme@redhat.com, hpa@zytor.com, mingo@redhat.com, a.p.zijlstra@chello.nl, fweisbec@gmail.com, dsahern@gmail.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, acme@redhat.com, linux-kernel@vger.kernel.org, fweisbec@gmail.com, a.p.zijlstra@chello.nl, dsahern@gmail.com, tglx@linutronix.de, mingo@elte.hu To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/stat] perf stat: Fail softly on unsupported events Git-Commit-ID: 370faf1dd0461ad811852c8abbbcd3d73b1e4fc4 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Fri, 29 Apr 2011 14:27:47 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 370faf1dd0461ad811852c8abbbcd3d73b1e4fc4 Gitweb: http://git.kernel.org/tip/370faf1dd0461ad811852c8abbbcd3d73b1e4fc4 Author: Ingo Molnar AuthorDate: Fri, 29 Apr 2011 16:11:03 +0200 Committer: Ingo Molnar CommitDate: Fri, 29 Apr 2011 16:22:33 +0200 perf stat: Fail softly on unsupported events David Ahern reported this perf stat failure: > # /tmp/build-perf/perf stat -- sleep 1 > Error: stalled-cycles-frontend event is not supported. > Fatal: Not all events could be opened. > > This is a Dell R410 with an E5620 processor. Fail in a softer fashion on unknown/unsupported events. Reported-by: David Ahern Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker Link: http://lkml.kernel.org/n/tip-7y40wib8n006io7hjpn1dsrm@git.kernel.org Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 9e596ab..c8b535b 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -377,7 +377,7 @@ static int run_perf_stat(int argc __used, const char **argv) list_for_each_entry(counter, &evsel_list->entries, node) { if (create_perf_stat_counter(counter) < 0) { - if (errno == EINVAL || errno == ENOSYS) + if (errno == EINVAL || errno == ENOSYS || errno == ENOENT) continue; if (errno == EPERM || errno == EACCES) { @@ -385,8 +385,6 @@ static int run_perf_stat(int argc __used, const char **argv) "\t Consider tweaking" " /proc/sys/kernel/perf_event_paranoid or running as root.", system_wide ? "system-wide " : ""); - } else if (errno == ENOENT) { - error("%s event is not supported. ", event_name(counter)); } else { error("open_counter returned with %d (%s). " "/bin/dmesg may provide additional information.\n",