From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933399Ab3LDUMW (ORCPT ); Wed, 4 Dec 2013 15:12:22 -0500 Received: from merlin.infradead.org ([205.233.59.134]:59386 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933282Ab3LDUHU (ORCPT ); Wed, 4 Dec 2013 15:07:20 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Jiri Olsa , Corey Ashford , David Ahern , Frederic Weisbecker , Ingo Molnar , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Steven Rostedt , Arnaldo Carvalho de Melo Subject: [PATCH 15/38] tools lib traceevent: Add traceevent_host_bigendian function Date: Wed, 4 Dec 2013 17:06:39 -0300 Message-Id: <1386187622-2928-16-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1386187622-2928-1-git-send-email-acme@infradead.org> References: <1386187622-2928-1-git-send-email-acme@infradead.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: Jiri Olsa Adding traceevent_host_bigendian function to get host endianity. It's used in following patches. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1386076182-14484-5-git-send-email-jolsa@redhat.com Signed-off-by: Steven Rostedt Signed-off-by: Arnaldo Carvalho de Melo --- 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 a28886066bcc..54273c0ec544 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, -- 1.8.1.4