From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755884Ab1AKLLM (ORCPT ); Tue, 11 Jan 2011 06:11:12 -0500 Received: from hera.kernel.org ([140.211.167.34]:36229 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755827Ab1AKLLJ (ORCPT ); Tue, 11 Jan 2011 06:11:09 -0500 Date: Tue, 11 Jan 2011 11:10:40 GMT From: tip-bot for Arnaldo Carvalho de Melo Cc: linux-kernel@vger.kernel.org, eranian@google.com, paulus@samba.org, acme@redhat.com, hpa@zytor.com, mingo@redhat.com, tzanussi@gmail.com, peterz@infradead.org, efault@gmx.de, fweisbec@gmail.com, tglx@linutronix.de, daahern@cisco.com, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, acme@redhat.com, paulus@samba.org, eranian@google.com, linux-kernel@vger.kernel.org, tzanussi@gmail.com, efault@gmx.de, peterz@infradead.org, fweisbec@gmail.com, tglx@linutronix.de, daahern@cisco.com, mingo@elte.hu In-Reply-To: References: To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/urgent] perf tools: Emit clearer message for sys_perf_event_open ENOENT return Message-ID: Git-Commit-ID: aa7bc7ef73efc46d7c3a0e185eefaf85744aec98 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]); Tue, 11 Jan 2011 11:10:40 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: aa7bc7ef73efc46d7c3a0e185eefaf85744aec98 Gitweb: http://git.kernel.org/tip/aa7bc7ef73efc46d7c3a0e185eefaf85744aec98 Author: Arnaldo Carvalho de Melo AuthorDate: Mon, 10 Jan 2011 13:36:24 -0200 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 10 Jan 2011 13:36:24 -0200 perf tools: Emit clearer message for sys_perf_event_open ENOENT return Improve sys_perf_event_open ENOENT return handling in top and record, just like 5a3446b does for stat. Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 3 +++ tools/perf/builtin-top.c | 2 ++ 2 files changed, 5 insertions(+), 0 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 7bc0490..7069bd3 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -331,6 +331,9 @@ try_again: else if (err == ENODEV && cpu_list) { die("No such device - did you specify" " an out-of-range profile CPU?\n"); + } else if (err == ENOENT) { + die("%s event is not supported. ", + event_name(evsel)); } else if (err == EINVAL && sample_id_all_avail) { /* * Old kernel, no attr->sample_id_type_all field diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 1e67ab9..6ce4042 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1247,6 +1247,8 @@ try_again: die("Permission error - are you root?\n" "\t Consider tweaking" " /proc/sys/kernel/perf_event_paranoid.\n"); + if (err == ENOENT) + die("%s event is not supported. ", event_name(evsel)); /* * If it's cycles then fall back to hrtimer * based cpu-clock-tick sw counter, which