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Message-ID: <527C126D.5000903@barfooze.de>
Date: Thu, 07 Nov 2013 23:21:33 +0100
From: John Spencer <maillist-musl@...fooze.de>
To: dave+gmane@...rtele.com
CC: musl@...ts.openwall.com
Subject: Re: arm softfp compatibility arch/fpu in gcc-4.8.2
David Wuertele wrote:
> Just starting with musl, http://wiki.musl-libc.org/wiki/Getting_started said
> for my Tegra 3 to use
>
> --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16
>
> This works fine except for one thing -- I have some libraries built with a
> soft-float toolchain that I need to link against. The VFP register seems to be
> the problem:
>
> arm-linux-musleabihf/4.8.2/../../../../arm-linux-musleabihf/bin/ld: error: sign
> uses VFP register arguments, lib/armeabi/libXXX.a(YYY.o) does not
"does not" is not really a helpful error message.
> arm-linux-musleabihf/4.8.2/../../../../arm-linux-musleabihf/bin/ld: failed to
> merge target specific data of file lib/armeabi/libXXX.a(YYY.o)
>
> What arch/fpu should I use to build a toolchain that can link against this
> library?
if you need to link to proprietary softfloat modules, you have to use
"softfp" float mode. that one is compatible to soft, but makes full use
of the FPU.
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