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Re: [nsz/math2, PATCH] e_exp2f.c: Support multiarch
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- Cc: GNU C Library <libc-alpha at sourceware dot org>, nd at arm dot com
- Date: Wed, 27 Sep 2017 14:05:50 -0700
- Subject: Re: [nsz/math2, PATCH] e_exp2f.c: Support multiarch
- Authentication-results: sourceware.org; auth=none
- References: <20170926230507.GA20101@gmail.com> <59CB6670.7030301@arm.com>
On 9/27/17, Szabolcs Nagy <szabolcs.nagy@arm.com> wrote:
> 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.
>
Can you remove nsz/math2 to avoid confusion?
>> This is to support compiling e_exp2f.c more than once for multiarch.
>>
>
> shall i do this for all new functions (logf, log2f, powf)?
Yes, please.
Thanks.
>> * 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
>>
>
>
--
H.J.