Re: [PATCH] prctl: implement PR_GET_ENDIAN for all architectures

On Tue, 2017-01-31 at 16:26 -0800, Andrew Morton wrote:

On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller [off-list ref]
wrote:

quoted

The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but
implemented for PowerPC only. This trivial patch adds support for 
this syscall for all other architectures.

Seems reasonable.  I guess.  Why is this needed?

I don't think it is other than for PPC.  If you're not variable endian
(which is only PPC to date), then you should know a priori what endian
you are from the #defines in userspace.

James