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SubjectRe: [PATCH] Fix undefined symbols for nommu architecture
"Luke Yang" <luke.adi@gmail.com> wrote:
>
> Hi,
>
> This is a patch to add or export some undefined symbols in nommu
> architectures (mm/nommu.c). Based on latest mm-tree. Following
> symbols are added: vmap, vunmap, randomize_va_space.
>
> Signed-off-by: Luke Yang <luke.adi@gmail.com>
>
> Index: git/linux-2.6/mm/nommu.c
> ===================================================================
> --- git.orig/linux-2.6/mm/nommu.c 2006-02-17 17:40:34.000000000 +0800
> +++ git/linux-2.6/mm/nommu.c 2006-02-20 12:09:32.000000000 +0800
> @@ -57,7 +57,10 @@
> EXPORT_SYMBOL(vfree);
> EXPORT_SYMBOL(vmalloc_to_page);
> EXPORT_SYMBOL(vmalloc_32);
> +EXPORT_SYMBOL(vmap);
> +EXPORT_SYMBOL(vunmap);

OK.

> +int randomize_va_space = 0;

Not so sure about this one. Does randomize_va_space actually make sense in
a nommu environment? I guess we could load relocatable binaries into a
randomised place, but I'm not sure that this is implemented?

If no, then it would make more sense to do

#define randomize_va_space 0

for nommu, so the relevant code gets thrown away by the compiler.
-
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