Re: [PATCH 2/3] M68K: Use CONFIG_MMU not __uClinux__ to select m68knommu contributions

From: Andreas Schwab
Date: Thu Sep 02 2010 - 10:15:40 EST


Sam Ravnborg <sam@xxxxxxxxxxxx> writes:

> On Thu, Sep 02, 2010 at 11:21:58AM +0100, David Howells wrote:
>> Use CONFIG_MMU not __uClinux__ to select m68knommu contributions as nothing in
>> the arch defines __uClinux__ for the build.
>>
>> This patch was achieved by running the following three commands:
>>
>> perl -pi -e 's/ifdef __uClinux__/ifndef CONFIG_MMU/' `find arch/m68k -name "*.[ch]"`
>> perl -pi -e 's/ifndef __uClinux__/ifdef CONFIG_MMU/' `find arch/m68k -name "*.[ch]"`
>> perl -pi -e 's!endif /[*] __uClinux__ [*]/!endif /* CONFIG_MMU */!' `find arch/m68k -name "*.[ch]"
>
> Have you verified that this does not leak out
> to the userspace headers?
> We cannot use the CONFIG_ symbol to distingush between
> the two variants in userspace.

asm/param.h and asm/sigcontext.h are user-space headers, so this is not
ok.

Andreas.

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