libtraceevent(3) ================ NAME ---- tep_is_bigendian, tep_is_local_bigendian, tep_set_local_bigendian - Get / set the endianness of the local machine. SYNOPSIS -------- [verse] -- *#include * enum *tep_endian* { TEP_LITTLE_ENDIAN = 0, TEP_BIG_ENDIAN }; int *tep_is_bigendian*(void); bool *tep_is_local_bigendian*(struct tep_handle pass:[*]_tep_); void *tep_set_local_bigendian*(struct tep_handle pass:[*]_tep_, enum tep_endian _endian_); -- DESCRIPTION ----------- The _tep_is_bigendian()_ gets the endianness of the machine, executing the function. The _tep_is_local_bigendian()_ function gets the endianness of the local machine, saved in the _tep_ handler. The _tep_ argument is the trace event parser context. This API is a bit faster than _tep_is_bigendian()_, as it returns cached endianness of the local machine instead of checking it each time. The _tep_set_local_bigendian()_ function sets the endianness of the local machine in the _tep_ handler. The _tep_ argument is trace event parser context. The _endian_ argument is the endianness: [verse] -- _TEP_LITTLE_ENDIAN_ - the machine is little endian, _TEP_BIG_ENDIAN_ - the machine is big endian. -- RETURN VALUE ------------ The _tep_is_bigendian()_ function returns non zero if the endianness of the machine, executing the code, is big endian and zero otherwise. The _tep_is_local_bigendian()_ function returns true, if the endianness of the local machine, saved in the _tep_ handler, is big endian, or false otherwise. EXAMPLE ------- [source,c] -- #include ... struct tep_handle *tep = tep_alloc(); ... if (tep_is_bigendian()) tep_set_local_bigendian(tep, TEP_BIG_ENDIAN); else tep_set_local_bigendian(tep, TEP_LITTLE_ENDIAN); ... if (tep_is_local_bigendian(tep)) printf("This machine you are running on is bigendian\n"); else printf("This machine you are running on is little endian\n"); -- FILES ----- [verse] -- *event-parse.h* Header file to include in order to have access to the library APIs. *-ltraceevent* Linker switch to add when building a program that uses the library. -- SEE ALSO -------- _libtraceevent(3)_, _trace-cmd(1)_ AUTHOR ------ [verse] -- *Steven Rostedt* , author of *libtraceevent*. *Tzvetomir Stoyanov* , author of this man page. -- REPORTING BUGS -------------- Report bugs to LICENSE ------- libtraceevent is Free Software licensed under the GNU LGPL 2.1 RESOURCES --------- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git