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Re: [nsz/math2, PATCH] e_exp2f.c: Support multiarch
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>, GNU C Library <libc-alpha at sourceware dot org>
- Cc: nd at arm dot com
- Date: Wed, 27 Sep 2017 09:50:56 +0100
- Subject: Re: [nsz/math2, PATCH] e_exp2f.c: Support multiarch
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On 27/09/17 00:05, H.J. Lu wrote:
> This is for nsz/math2 branch.
>
i figured out how to update a branch so nsz/math == nsz/math2 now.
> This is to support compiling e_exp2f.c more than once for multiarch.
>
shall i do this for all new functions (logf, log2f, powf)?
> * sysdeps/ieee754/flt-32/e_exp2f.c [__exp2f] (__ieee754_exp2f,
> __exp2f_finite, exp2f): Skip.
> ---
> sysdeps/ieee754/flt-32/e_exp2f.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/sysdeps/ieee754/flt-32/e_exp2f.c b/sysdeps/ieee754/flt-32/e_exp2f.c
> index b53a919a0d..e54a88f692 100644
> --- a/sysdeps/ieee754/flt-32/e_exp2f.c
> +++ b/sysdeps/ieee754/flt-32/e_exp2f.c
> @@ -86,6 +86,9 @@ __exp2f (float x)
> y = y * s;
> return (float) y;
> }
> +
> +#ifndef __exp2f
> strong_alias (__exp2f, __ieee754_exp2f)
> strong_alias (__exp2f, __exp2f_finite)
> versioned_symbol (libm, __exp2f, exp2f, GLIBC_2_27);
> +#endif
>