linux/Documentation/ABI/testing/sysfs-kernel-cpu_byteorder

What:		/sys/kernel/cpu_byteorder
Date:		February 2023
KernelVersion:	6.2
Contact:	Thomas Weißschuh <linux@weissschuh.net>
Description:
		The endianness of the running kernel.

		Access: Read

		Valid values:
			"little", "big"
Users:		util-linux
kernel/ksysfs.c: export kernel cpu byteorder Certain files in procfs are formatted in byteorder-dependent formats. For example the IP addresses in /proc/net/udp. When using emulation like qemu-user, applications are not guaranteed to be using the same byteorder as the kernel. Therefore the kernel needs to provide a way for applications to discover the byteorder used in API-filesystems. Using systemcalls is not enough because these are intercepted and translated by the emulation. Also this makes it easier for non-compiled applications like shellscripts to discover the byteorder. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20221103152407.3348-1-linux@weissschuh.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2022-11-03 16:24:07 +01:00			`What: /sys/kernel/cpu_byteorder`
			`Date: February 2023`
			`KernelVersion: 6.2`
			`Contact: Thomas Weißschuh <linux@weissschuh.net>`
			`Description:`
			`The endianness of the running kernel.`

			`Access: Read`

			`Valid values:`
			`"little", "big"`
			`Users: util-linux`