Commit 91a058ad authored Dec 03, 2013 by Jiri Olsa Committed by Arnaldo Carvalho de Melo Dec 04, 2013

tools lib traceevent: Add traceevent_host_bigendian function



Adding traceevent_host_bigendian function to get host endianity. It's
used in following patches.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1386076182-14484-5-git-send-email-jolsa@redhat.com


Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent e0e96d03

tools/lib/traceevent/event-parse.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#include <stdbool.h>
		#include <stdarg.h>
		#include <regex.h>
		#include <string.h>

		#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,