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On Tue, Jul 31, 2018 at 3:32 PM Nick Desaulniers
<ndesaulniers@xxxxxxxxxx> wrote:
>
> I'm currently looking into cleaning up the code duplication between
> current_text_addr() and _THIS_IP_, virtually every implementation of
> current_text_addr() and _THIS_IP_ itself are basically:
>
> #define _THIS_IP_ ({ __label__ _l; _l: &&_l; })
>
> For a few arch's, they have inline assembly instead (for
> current_text_addr()). Examples:
> * s390
> * sh
> * ia64
> * x86 (um and 32b)
> * c6x
> * sparc
>
> I have a patch that cuts down on the duplication, but I don't
> understand why the few arch specific implementations are necessary. I
> could reduce the duplication further if it's ok to just use the
> statement expression.
>
> Does anyone know why this is the case?
> --
> Thanks,
> ~Nick Desaulniers
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