Messages in this thread | | | Date | Fri, 16 Nov 2007 07:20:15 -0800 | From | "H. Peter Anvin" <> | Subject | Re: Kconfig: ARCH=x86 causes wrong utsname.machine |
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Andreas Herrmann wrote: > The new ARCH=x86 kernel build causes weired machine strings on 32-bit. > For a cross-compiled kernel I have > > $ uname -m > x66_64 > > For a kernel natively built on a 32 bit machine I have > > $ uname -m > x66 > > Looking at the sources, I think that utsname->machine was initially > set as "x86_64" and "x86", respectively. > But in arch/x86/kernel/cpu/bugs.c in check_bugs() the second character > is set to '6' on my K7. > > I think the right solution for that problem is to use "x86_64" as the > machine name for 64-bit and to keep the old "i[3456]86" strings for > 32-bit kernels.
Absolutely. This would be userspace-visible ABI breakage.
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