Adding traceevent_host_bigendian function to get host endianity. It's used in following patches.
Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: David Ahern <[email protected]> --- 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 <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, -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
