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Subject: Re: powerpc{32,64} randconfigs
To: Randy Dunlap <rdunlap@infradead.org>,
 PowerPC <linuxppc-dev@lists.ozlabs.org>
References: <45afab41-cc5f-dffa-712a-d5fb1a9d0a23@infradead.org>
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Message-ID: <a56093f8-9672-d815-81cc-ff0fd7743696@csgroup.eu>
Date: Wed, 21 Apr 2021 08:03:21 +0200
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 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

Hi

Le 21/04/2021 à 01:31, Randy Dunlap a écrit :
> [time passes]
> 
> 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?

The following change fixes the problem, allthough I guess that's not what you want to do at the end.

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1b6094a13034..00f72699c518 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -358,7 +358,7 @@ targets += $(lib-y) $(always-y) $(MAKECMDGOALS)
  # Linker scripts preprocessor (.lds.S -> .lds)
  # ---------------------------------------------------------------------------
  quiet_cmd_cpp_lds_S = LDS     $@
-      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
+      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(SRCARCH) \
  	                     -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<

  $(obj)/%.lds: $(src)/%.lds.S FORCE


> 
> The ARCH=ppc32 / ARCH=ppc64 patch is below FYI.
> It is missing an update to Documentation/kbuild/kbuild.rst (aliases).
> 
> 
> thanks.
>