From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752715AbdCNSyQ (ORCPT ); Tue, 14 Mar 2017 14:54:16 -0400 Received: from merlin.infradead.org ([205.233.59.134]:35720 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751366AbdCNSuh (ORCPT ); Tue, 14 Mar 2017 14:50:37 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, "Naveen N. Rao" , Ananth N Mavinakayanahalli , Arnaldo Carvalho de Melo Subject: [PATCH 18/19] doc: trace/kprobes: add information about NOKPROBE_SYMBOL Date: Tue, 14 Mar 2017 15:50:22 -0300 Message-Id: <20170314185023.31303-19-acme@kernel.org> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170314185023.31303-1-acme@kernel.org> References: <20170314185023.31303-1-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Naveen N. Rao" 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 41ef9d8efe95..5ea85059db3b 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. -- 2.9.3