1libtraceevent(3)
  2================
  3
  4NAME
  5----
  6tep_is_bigendian, tep_is_local_bigendian, tep_set_local_bigendian - Get / set
  7the endianness of the local machine.
  8
  9SYNOPSIS
 10--------
 11[verse]
 12--
 13*#include <event-parse.h>*
 14
 15enum *tep_endian* {
 16	TEP_LITTLE_ENDIAN = 0,
 17	TEP_BIG_ENDIAN
 18};
 19
 20int *tep_is_bigendian*(void);
 21bool *tep_is_local_bigendian*(struct tep_handle pass:[*]_tep_);
 22void *tep_set_local_bigendian*(struct tep_handle pass:[*]_tep_, enum tep_endian _endian_);
 23--
 24
 25DESCRIPTION
 26-----------
 27
 28The _tep_is_bigendian()_ gets the endianness of the machine, executing
 29the function.
 30
 31The _tep_is_local_bigendian()_ function gets the endianness of the local
 32machine, saved in the _tep_ handler. The _tep_ argument is the trace event
 33parser context. This API is a bit faster than _tep_is_bigendian()_, as it
 34returns cached endianness of the local machine instead of checking it each time.
 35
 36The _tep_set_local_bigendian()_ function sets the endianness of the local
 37machine in the _tep_ handler. The _tep_ argument is trace event parser context.
 38The _endian_ argument is the endianness:
 39[verse]
 40--
 41	_TEP_LITTLE_ENDIAN_ - the machine is little endian,
 42	_TEP_BIG_ENDIAN_ - the machine is big endian.
 43--
 44
 45RETURN VALUE
 46------------
 47The _tep_is_bigendian()_ function returns non zero if the endianness of the
 48machine, executing the code, is big endian and zero otherwise.
 49
 50The _tep_is_local_bigendian()_ function returns true, if the endianness of the
 51local machine, saved in the _tep_ handler, is big endian, or false otherwise.
 52
 53EXAMPLE
 54-------
 55[source,c]
 56--
 57#include <event-parse.h>
 58...
 59struct tep_handle *tep = tep_alloc();
 60...
 61	if (tep_is_bigendian())
 62		tep_set_local_bigendian(tep, TEP_BIG_ENDIAN);
 63	else
 64		tep_set_local_bigendian(tep, TEP_LITTLE_ENDIAN);
 65...
 66	if (tep_is_local_bigendian(tep))
 67		printf("This machine you are running on is bigendian\n");
 68	else
 69		printf("This machine you are running on is little endian\n");
 70
 71--
 72
 73FILES
 74-----
 75[verse]
 76--
 77*event-parse.h*
 78	Header file to include in order to have access to the library APIs.
 79*-ltraceevent*
 80	Linker switch to add when building a program that uses the library.
 81--
 82
 83SEE ALSO
 84--------
 85_libtraceevent(3)_, _trace-cmd(1)_
 86
 87AUTHOR
 88------
 89[verse]
 90--
 91*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
 92*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
 93--
 94REPORTING BUGS
 95--------------
 96Report bugs to  <linux-trace-devel@vger.kernel.org>
 97
 98LICENSE
 99-------
100libtraceevent is Free Software licensed under the GNU LGPL 2.1
101
102RESOURCES
103---------
104https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git