From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754860AbbCXQVS (ORCPT ); Tue, 24 Mar 2015 12:21:18 -0400 Received: from mail.kernel.org ([198.145.29.136]:59690 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752590AbbCXQVM (ORCPT ); Tue, 24 Mar 2015 12:21:12 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, "Steven Rostedt (Red Hat)" , Andrew Morton , Jiri Olsa , Namhyung Kim , Arnaldo Carvalho de Melo Subject: [PATCH 21/25] tools lib traceevent: Add way to find sub buffer boundary Date: Tue, 24 Mar 2015 13:19:36 -0300 Message-Id: <1427213980-9015-22-git-send-email-acme@kernel.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1427213980-9015-1-git-send-email-acme@kernel.org> References: <1427213980-9015-1-git-send-email-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Steven Rostedt (Red Hat)" For debugging purposes, it may be helpful for the kbuffer library to flag when crossing a sub buffer. Signed-off-by: Steven Rostedt Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/20150324135923.650983637@goodmis.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/kbuffer-parse.c | 11 +++++++++++ tools/lib/traceevent/kbuffer.h | 1 + 2 files changed, 12 insertions(+) diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c index deb3569ab004..3bcada3ae05a 100644 --- a/tools/lib/traceevent/kbuffer-parse.c +++ b/tools/lib/traceevent/kbuffer-parse.c @@ -729,3 +729,14 @@ void kbuffer_set_old_format(struct kbuffer *kbuf) kbuf->next_event = __old_next_event; } + +/** + * kbuffer_start_of_data - return offset of where data starts on subbuffer + * @kbuf: The kbuffer + * + * Returns the location on the subbuffer where the data starts. + */ +int kbuffer_start_of_data(struct kbuffer *kbuf) +{ + return kbuf->start; +} diff --git a/tools/lib/traceevent/kbuffer.h b/tools/lib/traceevent/kbuffer.h index c831f64b17a0..03dce757553f 100644 --- a/tools/lib/traceevent/kbuffer.h +++ b/tools/lib/traceevent/kbuffer.h @@ -63,5 +63,6 @@ int kbuffer_missed_events(struct kbuffer *kbuf); int kbuffer_subbuffer_size(struct kbuffer *kbuf); void kbuffer_set_old_format(struct kbuffer *kbuf); +int kbuffer_start_of_data(struct kbuffer *kbuf); #endif /* _K_BUFFER_H */ -- 1.9.3