linux-kernel - Re: [PATCH] powerpc: add crtsavres.o to always-y instead of extra-y

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Message-ID: <Y8mPmqDWiRJNdXs/@thelio-3990X>
Date:   Thu, 19 Jan 2023 11:44:42 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, llvm@...ts.linux.dev
Subject: Re: [PATCH] powerpc: add crtsavres.o to always-y instead of extra-y

On Thu, Jan 19, 2023 at 05:24:47PM +0900, Masahiro Yamada wrote:
> crtsavres.o is linked to modules, but as commit d0e628cd817f ("kbuild:
> doc: clarify the difference between extra-y and always-y") explained,
> 'make modules' does not build extra-y.
> 
> The following command fails:
> 
>   $ make ARCH=powerpc LLVM=1 mrproper ps3_defconfig modules
>     [snip]
>     LD [M]  arch/powerpc/platforms/cell/spufs/spufs.ko
>   ld.lld: error: cannot open arch/powerpc/lib/crtsavres.o: No such file or directory
>   make[1]: *** [scripts/Makefile.modfinal:61: arch/powerpc/platforms/cell/spufs/spufs.ko] Error 1
>   make: *** [Makefile:1924: modules] Error 2
> 
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

Reviewed-by: Nathan Chancellor <nathan@...nel.org>

> ---
> 
>  arch/powerpc/lib/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
> index c53618c34b70..aa34854bc9f5 100644
> --- a/arch/powerpc/lib/Makefile
> +++ b/arch/powerpc/lib/Makefile
> @@ -43,7 +43,7 @@ obj-$(CONFIG_FUNCTION_ERROR_INJECTION)	+= error-inject.o
>  # so it is only needed for modules, and only for older linkers which
>  # do not support --save-restore-funcs
>  ifndef CONFIG_LD_IS_BFD
> -extra-$(CONFIG_PPC64)	+= crtsavres.o
> +always-$(CONFIG_PPC64)	+= crtsavres.o
>  endif
>  
>  obj-$(CONFIG_PPC_BOOK3S_64) += copyuser_power7.o copypage_power7.o \
> -- 
> 2.34.1
>