From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753718AbdCOSpW (ORCPT ); Wed, 15 Mar 2017 14:45:22 -0400 Received: from terminus.zytor.com ([65.50.211.136]:39672 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751270AbdCOSoS (ORCPT ); Wed, 15 Mar 2017 14:44:18 -0400 Date: Wed, 15 Mar 2017 11:44:08 -0700 From: "tip-bot for Naveen N. Rao" Message-ID: Cc: naveen.n.rao@linux.vnet.ibm.com, acme@redhat.com, ananth@linux.vnet.ibm.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, mhiramat@kernel.org, hpa@zytor.com, mingo@kernel.org Reply-To: mhiramat@kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@kernel.org, hpa@zytor.com, naveen.n.rao@linux.vnet.ibm.com, ananth@linux.vnet.ibm.com, acme@redhat.com In-Reply-To: References: To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] doc: trace/kprobes: add information about NOKPROBE_SYMBOL Git-Commit-ID: c1ac094d5061e757624a47217d2195ba24a75450 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: c1ac094d5061e757624a47217d2195ba24a75450 Gitweb: http://git.kernel.org/tip/c1ac094d5061e757624a47217d2195ba24a75450 Author: Naveen N. Rao AuthorDate: Wed, 8 Mar 2017 22:34:14 +0530 Committer: Arnaldo Carvalho de Melo CommitDate: Tue, 14 Mar 2017 15:17:40 -0300 doc: trace/kprobes: add information about NOKPROBE_SYMBOL Update kprobe tracer documentation to also mention that NOKPROBE_SYMBOL() and nokprobe_inline add symbols to the kprobes blacklist. Signed-off-by: Naveen N. Rao Acked-by: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Link: http://lkml.kernel.org/r/d924e20de099579ace4286e610304f054cd798db.1488991670.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- Documentation/trace/kprobetrace.txt | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index 41ef9d8..5ea8505 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -8,8 +8,9 @@ Overview -------- These events are similar to tracepoint based events. Instead of Tracepoint, this is based on kprobes (kprobe and kretprobe). So it can probe wherever -kprobes can probe (this means, all functions body except for __kprobes -functions). Unlike the Tracepoint based event, this can be added and removed +kprobes can probe (this means, all functions except those with +__kprobes/nokprobe_inline annotation and those marked NOKPROBE_SYMBOL). +Unlike the Tracepoint based event, this can be added and removed dynamically, on the fly. To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y.