Re: nds32 build failures

[Guenter Roeck]

On 05/10/2018 07:40 PM, Arnd Bergmann wrote:
> On Wed, Apr 18, 2018 at 3:19 AM, Greentime Hu <green.hu@xxxxxxxxx> wrote:
> > 2018-04-17 20:47 GMT+08:00 Arnd Bergmann <arnd@xxxxxxxx>:
> > > On Mon, Apr 16, 2018 at 11:06 AM, Greentime Hu <green.hu@xxxxxxxxx> wrote:
> > > > 2018-04-16 11:58 GMT+08:00 Guenter Roeck <private@xxxxxxxxxxxx>:
> > > >
> > > > This built failure is because the toolchain version you used is not
> > > > supported the latest intrinsic function/macro.
> > > > We are sending the latest patchset now and we expect the whole new
> > > > features will be supported in gcc8.0.0 and binutil2.31+.
> > > >
> > > > If you'd like to get these new features of toolchain, you may use the
> > > > github version.
> > > > This is the built-script repo. https://github.com/andestech/build_script.git
> > > I've taken the gcc-6.3 sources from there, and updated them to gcc-6.4.0
> > > in order to build a nds32le-linux toolchain based on the same version as
> > > the other ones.
> > >
> > > Unfortunately neither the usual binutils-2.29.1 nor your binutils worked
> > > for me, but I eventually managed to get a build using the binutils-2.30
> > > release.
> > >
> > > With this, I could build a mainline kernel with a couple of warnings,
> > > but an 'allmodconfig' build still failed.
> > >
> > > Guenter, can you try my binary from
> > > www.kernel.org/pub/tools/crosstool/files/bin/x86_64/6.4.0/x86_64-gcc-6.4.0-nolibc-nds32le-linux.tar.xz
> > > ?
> > >
> > > If that works for you, I'll update the front-page and remove the nds32-elf
> > > toolchains.
> > >
> > > Greentime, do you have a patch set for gcc-7.3 as well, or are 6.3 and 8.0 the
> > > only working compilers for nds32le-linux?
> > Hi, all:
> >
> > I just discuss with our toolchain colleagues. We have only gcc6.3 and
> > gcc8.0 for nds32le-linux.
> > I have the ld segmentation fault issue too when building kernel with
> > 'allmodconfig'. We are dealing with it.
> I've tried building the mainline gcc-8.1 sources for nds32le-linux and
> still got a failure with those (building gcc), building a nds32le-elf gcc-8.1.0
> worked fine, but that fails to build the vdso (no support for -fPIC), so
> it's again unusable for building kernels. Any other ideas?
FWIW, nds32 in linux-next doesn't build for me at all, at least not with
nds32le-linux-gcc (GCC) 6.4.0 from kernel.org. I have not tried any
other versions.

Guenter