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Re: how to use indirect funtions?
- From: "Carlos O'Donell" <carlos at systemhalted dot org>
- To: Ondřej Bílka <neleai at seznam dot cz>
- Cc: libc-help at sourceware dot org
- Date: Tue, 17 Jul 2012 21:02:48 -0400
- Subject: Re: how to use indirect funtions?
- References: <20120706113940.GA1920@domone.rutgers.edu>
On Fri, Jul 6, 2012 at 7:39 AM, OndÅej BÃlka <neleai@seznam.cz> wrote:
> Hello
>
> I want to do dispatching of my string functions in generic way.
> Currently for strstr I have files strstr_sse2.c, strstr_ssse3,
> strstr_sse4_1.c, strstr_sse4_2.c, each consisting only of three lines
>
>
> #define USE_FOO
> #define STRSTR __strstr_FOO
> #include "strstr.h"
>
> As I want do same thing for all string functions. This would generate
> lot of files. Is there better way how to do this?
That seems like a reasonable solution to the problem.
I haven't thought it through very much, but I don't see an easy way to
solve it in one file.
You might be able to just have one file and a bunch of inline assembly
inserts that create symbol aliases in the assembler.
Cheers,
Carlos.