Commit 91a058ad authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo

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: default avatarJiri 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.comSigned-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent e0e96d03
......@@ -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,
......
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