Re: arch/mips/vdso/elf.S:1:0: error: '-march=r3900' requires '-mfp32'
From: Maciej W. Rozycki
Date: Thu Dec 15 2016 - 19:58:36 EST
On Tue, 13 Dec 2016, Ralf Baechle wrote:
> > FYI, the error/warning still remains.
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 045169816b31b10faed984b01c390db1b32ee4c1
> > commit: ebb5e78cc63417a35254a791de66e1cc84f963cc MIPS: Initial implementation of a VDSO
> > date: 1 year, 1 month ago
> > config: mips-jmr3927_defconfig (attached as .config)
> > compiler: mips-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
> > reproduce:
> > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> > chmod +x ~/bin/make.cross
> > git checkout ebb5e78cc63417a35254a791de66e1cc84f963cc
> > # save the attached .config to linux build tree
> > make.cross ARCH=mips
> Which binutils are you using with this compiler?
FYI, see the discussion: <https://patchwork.linux-mips.org/patch/14505/>,
and the original patch: <https://patchwork.linux-mips.org/patch/14465/>.
My advice has been to stick `$(call cc-option,-mno-float,-msoft-float)'
there instead, although there might be a slight controversy around it, so
if you are happy with revisiting Guenter's change in the future, then you
may well pick the original patch.
Myself, I don't have resources available right now to submit a revised