Date: Tue, 20 Jul 2010 09:07:24 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-arch@freebsd.org, amd64@freebsd.org Subject: Re: uname -m/-p for compat32 binaries Message-ID: <201007200907.24715.jhb@freebsd.org> In-Reply-To: <20100719213054.GB2381@deviant.kiev.zoral.com.ua> References: <20100719213054.GB2381@deviant.kiev.zoral.com.ua>
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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. -- John Baldwin
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