Re: [OE-core] [PATCH] gcc10: Don't default back to -fcommon

["Martin Jansa" <Martin.Jansa@gmail.com>]

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Yes, I'm seeing this weird concatenation with raspberrypi builds as well:

find: unknown predicate `-mthumb/arch'
arm-webos-linux-gnueabi-gcc: error: unrecognized command-line option
'-mthumb/include/uapi/asm-generic/errno.h'
arm-webos-linux-gnueabi-gcc: fatal error: no input files
compilation terminated.

But in this case it isn't fatal for the perf build, I've noticed it only
because it was failing with 5.4.51 currently in meta-raspberrypi and after
upgrade to 5.4.58 perf built OK, but this error message is still there in
log.do_compile.

On Mon, Aug 17, 2020 at 9:47 PM Khem Raj <raj.khem@gmail.com> wrote:

> On Mon, Aug 17, 2020 at 5:27 AM Richard Purdie
> <richard.purdie@linuxfoundation.org> wrote:
> >
> > On Sun, 2020-08-16 at 18:55 -0400, Bruce Ashfield wrote:
> > >
> > >
> > > On Sun, Aug 16, 2020 at 9:47 AM Richard Purdie <
> > > richard.purdie@linuxfoundation.org> wrote:
> > > > On Sat, 2020-08-15 at 19:41 -0700, Khem Raj wrote:
> > > > > Bruce,
> > > > >
> > > > > We need
> > > > >
> > > >
> https://github.com/torvalds/linux/commit/168200b6d6ea0cb5765943ec5da5b8149701f36a
> > > > > backported to 5.4 kernels for perf to build with -fno-common can
> > > > you
> > > > > queue this in your kernel updates as soon as you can ?
> > > >
> > > > I think we have other active kernels which will also need it as
> > > > even
> > > > with Khem's patch we still see failures:
> > > >
> > >
> > > I've taken care of linux-yocto now, I don't think there are any
> > > active use cases for those kernels that won't be covered.
> >
> > I bumped the meta-yocto BSPs with a quickly hacked up patch but we
> > still see:
> >
> > https://autobuilder.yoctoproject.org/typhoon/#/builders/65/builds/2339
> >
> > so I think there may be another patch we need somewhere...
> >
> > (which matches what we saw with Khem's _append which also failed).
> >
>
> there seems to be concaternation of compiler options without space
>
> | arm-poky-linux-gnueabi-gcc: error: unrecognized argument in option
> '-mfpu=neon/include/uapi/asm-generic/errno.h'
> | arm-poky-linux-gnueabi-gcc: note: valid arguments to '-mfpu=' are:
> auto crypto-neon-fp-armv8 fp-armv8 fpv4-sp-d16 fpv5-d16 fpv5-sp-d16
> neon neon-fp-armv8 neon-fp16 neon-vfpv3 neon-vfpv4 vfp vfp3 vfpv2
> vfpv3 vfpv3-d16 vfpv3-d16-fp16 vfpv3-fp16 vfpv3xd vfpv3xd-fp16 vfpv4
> vfpv4-d16
> | arm-poky-linux-gnueabi-gcc: fatal error: no input files
>
> but it also showed up on x86_64 in one of your prior builds, so I
> wonder if its something in kernel build system or is it processing
> TUNE_CCARGS in special ways.
>
> > There is still some piece of this we're missing, maybe on non-IA.
> >
> > Cheers,
> >
> > Richard
> >
> 
>

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