Re: [PATCH] allow placing exception table in .rodata (and do so on x86)

From: Heiko Carstens
Date: Thu Apr 28 2011 - 06:43:17 EST


On Wed, Apr 27, 2011 at 04:36:04PM +0100, Jan Beulich wrote:
> This is since the table is really a set of pointers, i.e. misplaced in
> .text.
>
> Quite likely other architectures would want to follow.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
>

[...]

> --- 2.6.39-rc5/include/asm-generic/vmlinux.lds.h
> +++ 2.6.39-rc5-extable-in-rodata/include/asm-generic/vmlinux.lds.h
> @@ -226,6 +226,7 @@
> *(.rodata1) \
> } \
> \
> + EXCEPTION_TABLE_RO \

That's odd. The kernel actually writes to it (sort_main_extable()), so
it shouldn't be in the ro data section, but the data section.

> JUMP_TABLE \

same here.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/