Date: Wed, 13 Jun 2012 20:32:19 -0700 From: Tim Kientzle <tim@kientzle.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: freebsd-arm@freebsd.org, Jan Sieka <jps@semihalf.com>, freebsd-current@freebsd.org Subject: Re: Possible fix for Perl failing with ../lib/auto/POSIX/POSIX.so: Undefined symbol "__flt_rounds" on ARM Message-ID: <E7AE0433-06F3-4024-B05B-87EA494856D2@kientzle.com> In-Reply-To: <20120612084917.GL2337@deviant.kiev.zoral.com.ua> References: <4FCE211D.10204@semihalf.com> <0FE5C5BF-FADE-49BA-BF38-00018A752F14@kientzle.com> <4FD6FB72.10900@semihalf.com> <20120612084917.GL2337@deviant.kiev.zoral.com.ua>
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On Jun 12, 2012, at 1:49 AM, Konstantin Belousov wrote:
>>>
>>> On Jun 5, 2012, at 8:09 AM, Jan Sieka wrote:
>>>>
>>>>
>>>> After investigating the issue it appeared that __flt_rounds symbol is
>>>> not exported by libc. Applying the following patch, recompilling world
>>>> and Perl fixed the problem and allowed to use Perl on SheevaPlug:
>>>>
>>>> diff --git a/lib/libc/arm/Symbol.map b/lib/libc/arm/Symbol.map
>>>> index e8c7f1d..8cdcdaf 100644
>>>> --- a/lib/libc/arm/Symbol.map
>>>> +++ b/lib/libc/arm/Symbol.map
>>>> @@ -70,6 +70,7 @@ FBSDprivate_1.0 {
>>>> __divdf3;
>>>> __floatsisf;
>>>> __floatsidf;
>>>> + __flt_rounds;
>>>> __fixsfsi;
>>>> __fixdfsi;
>>>> __fixunssfsi;
> If the symbols are used by normal programs, that I think
> we should indeed guarantee ABI stability for them, and FBSD_1.3
> namespace is the right namespace to use.
Why 1.3?
This is a common function across every architecture except MIPS right
now (and that's probably easily remedied), so why would it be in
a different section for different architectures?
Tim
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