[maemo-developers] [maemo-developers] Speed test with vfp (floating point) on N800

[From: Koen Kooi]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Kalle Vahlman schreef:
> 2007/2/16, Simon Pickering <S.G.Pickering at bath.ac.uk>:
> [libc/m with VFP]
>> I note that the build process was a fiddle (mainly due to my not
>> knowing the
>> debian way), and it took a couple of goes before my CFLAGS were used
>> for the
>> build. I also note that when I tried using the following
>> "-mcpu=arm1136j-s
>> -mfpu=vfp -mfloat-abi=softfp", the build failed (I don't know why -
>> didn't look
>> too hard. I don't have cpu transparency setup though), but removing
>> "-mcpu=arm1136j-s" worked, and that's what I've been using.
> 
> Yeah, that's due to licensing issues. Qemu cannot emulate ARMv6
> instructions, thus the  build fails if it tries to run anything
> compiled with the correct arch.
> 
> Tuomas (who did the builds for me) noticed that there was a configure
> flag given for tje libc build that most likely prevented our version
> from actually using the vfp 

Out of interest, which flag would that be?

regards,

Koen
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (Darwin)

iD8DBQFF1Zx/MkyGM64RGpERAv5cAKC6H/k5lJ6mQLCBTcJ9HEw2/2K47gCgtD3h
3zhinQqxmo3noHkFMtpy5U8=
=scUR
-----END PGP SIGNATURE-----