Re: Merge headerfiles for m68k and m68knommu to arch/m68k/include/asm

Geert Uytterhoeven
2008-12-08T23:01:15Z

On Mon, 8 Dec 2008, Sam Ravnborg wrote:
> Following is a pseudo patch (a script + a patch) that merges
> the include files for m68k and m68knommu in one place at:
>
> arch/m68k/include/asm
>
> The script was written by Arnd and I added a few modifications.

Thanks! I'll take a closer look when I'll find some spare time...

> I have used the following include guard:
>
> #ifdef __uClinux__
> #include "atomic_no.h"
> #else
> #include "atomic_mm.h"
> #endif
>
> gcc -E -dM for the two compilers revealed that this was the
> only symbol that differed.

I think you can share a toolchain for m68k and m68knommu, at least for the
kernel (I used my plain m68k toolchain when experimenting with m68knommu for
Amiga).

> With the above construct we do the "right thing" also for
> headers exported to userspace.
> But actually none of the headers using the above are
> subject for export at the moment so we could use a
> CONFIG_ symbol for the same.

So I prefer to just check CONFIG_MMU.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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