Possible fix for Perl failing with ../lib/auto/POSIX/POSIX.so:
Undefined symbol "__flt_rounds" on ARM
Tim Kientzle
tim at kientzle.com
Sat Jun 9 16:11:35 UTC 2012
On Jun 5, 2012, at 8:09 AM, Jan Sieka wrote:
> Hello Ian!
>
> I tried recently to compile and run Perl 5.12 on ARM (SheevaPlug) using
> HEAD from 22.05.2012 and got the following error while trying to run:
> /usr/ports/lang/perl5.12 # make test
> [...]
> ../lib/auto/POSIX/POSIX.so: Undefined symbol "__flt_rounds
> [...]
>
> 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;
>
> Can you comment whether this is a correct solution?
Great! I had the same problem compiling Python last
week and had planned to track it down.
I just committed this to -CURRENT and will also
merge it to the armv6 tree.
Tim
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