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Date: Wed, 14 Dec 2022 15:45:25 +0100
From: Jan-Benedict Glaw <jbglaw@lug-owl.de>
To: Michael Ellerman <mpe@ellerman.id.au>
Subject: Re: Mass-building defconfigs: many fail with assembler errors
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On Tue, 2022-12-13 14:49:20 +1100, Michael Ellerman <mpe@ellerman.id.au> wr=
ote:
[...]
> Both treeboot-akebono.c and treeboot-currituck.c are for 476 so should
> probably be built with -mcpu=3D476. eg:
>=20
> diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
> index d32d95aea5d6..acb6eddace8f 100644
> --- a/arch/powerpc/boot/Makefile
> +++ b/arch/powerpc/boot/Makefile
> @@ -88,8 +88,8 @@ $(obj)/cuboot-taishan.o: BOOTCFLAGS +=3D -mcpu=3D440
>  $(obj)/cuboot-katmai.o: BOOTCFLAGS +=3D -mcpu=3D440
>  $(obj)/cuboot-acadia.o: BOOTCFLAGS +=3D -mcpu=3D405
>  $(obj)/treeboot-iss4xx.o: BOOTCFLAGS +=3D -mcpu=3D405
> -$(obj)/treeboot-currituck.o: BOOTCFLAGS +=3D -mcpu=3D405
> -$(obj)/treeboot-akebono.o: BOOTCFLAGS +=3D -mcpu=3D405
> +$(obj)/treeboot-currituck.o: BOOTCFLAGS +=3D -mcpu=3D476
> +$(obj)/treeboot-akebono.o: BOOTCFLAGS +=3D -mcpu=3D476
> =20
>  # The pre-boot decompressors pull in a lot of kernel headers and other s=
ource
>  # files. This creates a bit of a dependency headache since we need to co=
py

With this patch applied, it seems this fixes these asm-related builds:

linux-powerpc-bamboo_defconfig
linux-powerpc-cell_defconfig
linux-powerpc-ebony_defconfig
linux-powerpc-katmai_defconfig
linux-powerpc-ppc44x_defconfig
linux-powerpc-rainier_defconfig
linux-powerpc-sam440ep_defconfig
linux-powerpc-sequoia_defconfig
linux-powerpc-taishan_defconfig

=2E..while three remain unresolved:

linux-powerpc-asp8347_defconfig
linux-powerpc-mvme5100_defconfig
linux-powerpc-ppc64e_defconfig

Of course I cannot verify the resulting kernel binaries, but I guess
you'd push this patch.

  The PR for the ICE is being actively worked on, just started a GCC
build with the suggested patch.

MfG, JBG

--=20

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