Messages in this thread | | | Subject | Re: arch/mips/vdso/gettimeofday.c:1:0: error: '-march=r3900' requires '-mfp32' | From | Guenter Roeck <> | Date | Tue, 5 Jan 2016 00:09:14 -0800 |
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On 01/04/2016 11:23 PM, kbuild test robot wrote: > Hi Guenter, > > First bad commit (maybe != root cause): > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 168309855a7d1e16db751e9c647119fe2d2dc878 > commit: 398c7500a1f5f74e207bd2edca1b1721b3cc1f1e MIPS: VDSO: Fix build error with binutils 2.24 and earlier > date: 6 days ago > config: mips-jmr3927_defconfig (attached as .config) > 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 398c7500a1f5f74e207bd2edca1b1721b3cc1f1e > # save the attached .config to linux build tree > make.cross ARCH=mips > > All errors (new ones prefixed by >>): > >>> arch/mips/vdso/gettimeofday.c:1:0: error: '-march=r3900' requires '-mfp32' > /* > ^ > AFAICS this is using the mips cross compiler version 4.9.0 from kernel.org [1], which in turn uses binutils 2.24. At least this is what make.cross tries to install.
I downloaded it and used it to compile both the attached configuration as well as jmr3927_defconfig. Both are building just fine for me. On top of that, arch/mips/vdso/gettimeofday.c should not build in the first place with binutils 2.24 (and doesn't build for me).
What am I missing ?
Guenter
--- [1] https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/x86_64-gcc-4.9.0-nolibc_mips-linux.tar.xz
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