uname -m/-p for compat32 binaries

[M. Warner Losh]

In message: <201007200907.24715.jhb at freebsd.org>
            John Baldwin <jhb at FreeBSD.org> writes:
: On Monday, July 19, 2010 5:30:54 pm Kostik Belousov wrote:
: > Hi,
: > I intend to commit the following change, that makes sysctls
: > hw.machine_arch and hw.machine to return "i386" for 32 bit
: > binaries run on amd64. In particular, 32 bit uname -m and uname -p
: > print "i386", that is good for i386 jails on amd64 kernels.
: > 
: > I find the change very useful for me, but I wonder why such trivial
: > modification is not yet done. Can anybody note a possible fallout from
: > it ?
: 
: Presumably ia64 and powerpc64 would need a similar change as well?  It looks 
: fine to me.  I suspect Y! used the UNAME_* approach as it didn't add yet-
: another local diff to maintain in the kernel, and the uname fixes at Y! might 
: have predated SCTL_MASK32.

mips might as well, someday.

Warner