Re: powerpc{32,64} randconfigs

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On Wed, Apr 21, 2021 at 4:15 PM Michael Ellerman <mpe@xxxxxxxxxxxxxx> wrote:
>
> Randy Dunlap <rdunlap@xxxxxxxxxxxxx> writes:
> > Hi,
> >
> > Is there a way to do this?
> >
> > $ make ARCH=powerpc randconfig # and force PPC32
>
> Sort of:
>
> $ KCONFIG_ALLCONFIG=arch/powerpc/configs/book3s_32.config make randconfig
>
> But that also forces BOOK3S.
>
> > and separately
> > $ make ARCH=powerpc randconfig # and force PPC64
>
> No.
>
> ...
> > OK, I have a patch that seems for work as far as setting
> > PPC32=y or PPC64=y... but it has a problem during linking
> > of vmlinux:
> >
> > crosstool/gcc-9.3.0-nolibc/powerpc-linux/bin/powerpc-linux-ld:./arch/powerpc/kernel/vmlinux.lds:6: syntax error
> >
> > and the (bad) generated vmlinux.lds file says (at line 6):
> >
> > OUTPUT_ARCH(1:common)
> >
> > while it should say:
> >
> > OUTPUT_ARCH(powerpc:common)
> >
> > Does anyone have any ideas about this problem?
>
> I guess your patch broke something? :D
> Not sure sorry.
>
> What about something like this?
>
> cheers
>
>
> diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
> index 3212d076ac6a..712c5e8768ce 100644
> --- a/arch/powerpc/Makefile
> +++ b/arch/powerpc/Makefile
> @@ -376,6 +376,16 @@ PHONY += ppc64_book3e_allmodconfig
>         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/85xx-64bit.config \
>                 -f $(srctree)/Makefile allmodconfig
>
> +PHONY += ppc32_randconfig
> +ppc32_randconfig:
> +       $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/32-bit.config \
> +               -f $(srctree)/Makefile randconfig
> +
> +PHONY += ppc64_randconfig
> +ppc64_randconfig:
> +       $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/64-bit.config \
> +               -f $(srctree)/Makefile randconfig
> +
>  define archhelp
>    @echo '* zImage          - Build default images selected by kernel config'
>    @echo '  zImage.*        - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
> diff --git a/arch/powerpc/configs/32-bit.config b/arch/powerpc/configs/32-bit.config
> new file mode 100644
> index 000000000000..bdf833009006
> --- /dev/null
> +++ b/arch/powerpc/configs/32-bit.config
> @@ -0,0 +1 @@
> +CONFIG_PPC64=n

Please do:

# CONFIG_PPC64 is not set





> diff --git a/arch/powerpc/configs/64-bit.config b/arch/powerpc/configs/64-bit.config
> new file mode 100644
> index 000000000000..0fe6406929e2
> --- /dev/null
> +++ b/arch/powerpc/configs/64-bit.config
> @@ -0,0 +1 @@
> +CONFIG_PPC64=y
>


-- 
Best Regards
Masahiro Yamada



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