Messages in this thread | | | Date | Tue, 6 Dec 2011 13:45:49 +0200 | Subject | Re: Rewriting kernel config after generation | From | Alexey Dobriyan <> |
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On Fri, Dec 2, 2011 at 7:33 AM, Alexey Dobriyan <adobriyan@gmail.com> wrote: > I'm trying to add compiling with -march=native to the kernel. > The problem is that then some config options become discoverable at > the beginning of the compilation. For example, > CONFIG_X86_L1_CACHE_SHIFT=6 can be derived from "--param l1-cache-line-size=64". > I suspect this is no-go, because all the dependency logic must be > duplicated somewhere else (in the march=native script) for the above > to work. > > Is there any cleaner way I'm missing? > > In theory, such script could even turn off CONFIG_CPU_SUP_AMD > if it detects Intel CPU.
Hrph, this is harder than it looks because "silentoldconfig" is done at the beginning rewriting whatever changes done to .config by hand. :-(
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