Date: Fri, 23 Jul 2010 12:26:18 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: jhb@FreeBSD.org Cc: amd64@FreeBSD.org, kostikbel@gmail.com, freebsd-arch@FreeBSD.org Subject: Re: uname -m/-p for compat32 binaries Message-ID: <20100723.122618.750582998550767254.imp@bsdimp.com> In-Reply-To: <201007200907.24715.jhb@freebsd.org> References: <20100719213054.GB2381@deviant.kiev.zoral.com.ua> <201007200907.24715.jhb@freebsd.org>
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In message: <201007200907.24715.jhb@freebsd.org>
John Baldwin <jhb@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
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