From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753553Ab3LCNKY (ORCPT ); Tue, 3 Dec 2013 08:10:24 -0500 Received: from mx1.redhat.com ([209.132.183.28]:13734 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753265Ab3LCNKQ (ORCPT ); Tue, 3 Dec 2013 08:10:16 -0500 From: Jiri Olsa To: linux-kernel@vger.kernel.org Cc: Jiri Olsa , Corey Ashford , Frederic Weisbecker , Ingo Molnar , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo , Steven Rostedt , David Ahern Subject: [PATCH 04/28] tools lib traceevent: Add traceevent_host_bigendian function Date: Tue, 3 Dec 2013 14:09:18 +0100 Message-Id: <1386076182-14484-5-git-send-email-jolsa@redhat.com> In-Reply-To: <1386076182-14484-1-git-send-email-jolsa@redhat.com> References: <1386076182-14484-1-git-send-email-jolsa@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding traceevent_host_bigendian function to get host endianity. It's used in following patches. Signed-off-by: Steven Rostedt Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: David Ahern --- tools/lib/traceevent/event-parse.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index a288860..54273c0 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -23,6 +23,7 @@ #include #include #include +#include #ifndef __maybe_unused #define __maybe_unused __attribute__((unused)) @@ -527,6 +528,15 @@ __data2host8(struct pevent *pevent, unsigned long long data) __data2host8(pevent, __val); \ }) +static inline int traceevent_host_bigendian(void) +{ + unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 }; + unsigned int val; + + memcpy(&val, str, 4); + return val == 0x01020304; +} + /* taken from kernel/trace/trace.h */ enum trace_flag_type { TRACE_FLAG_IRQS_OFF = 0x01, -- 1.8.3.1