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From: Michael Ellerman <mpe@ellerman.id.au>
To: Randy Dunlap <rdunlap@infradead.org>,
	PowerPC <linuxppc-dev@lists.ozlabs.org>
Cc: linux-kbuild <linux-kbuild@vger.kernel.org>
Subject: Re: powerpc{32,64} randconfigs
Date: Wed, 21 Apr 2021 17:15:49 +1000	[thread overview]
Message-ID: <87tuo0az16.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <45afab41-cc5f-dffa-712a-d5fb1a9d0a23@infradead.org>

Randy Dunlap <rdunlap@infradead.org> 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
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


  parent reply	other threads:[~2021-04-21  7:16 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20 23:31 powerpc{32,64} randconfigs Randy Dunlap
2021-04-21  6:03 ` Christophe Leroy
2021-04-21  6:12 ` Christophe Leroy
2021-04-21  6:37 ` Christophe Leroy
2021-04-21  6:45   ` Randy Dunlap
2021-04-28  1:31     ` Randy Dunlap
2021-04-21  7:15 ` Michael Ellerman [this message]
2021-04-21 10:08   ` Masahiro Yamada
2021-04-27 23:45   ` Randy Dunlap
2022-03-02 16:14     ` Christophe Leroy

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