linux-kernel - Re: [PATCH] MIPS: boot/compressed/: add __ashldi3 to target for ZSTD compression

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Date:   Thu, 25 Nov 2021 10:32:56 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        list@...ndingux.net
Subject: Re: [PATCH] MIPS: boot/compressed/: add __ashldi3 to target for ZSTD
 compression

On Fri, Nov 19, 2021 at 05:50:52PM +0000, Paul Cercueil wrote:
> Just like before with __bswapdi2(), for MIPS pre-boot when
> CONFIG_KERNEL_ZSTD=y the decompressor function will use __ashldi3(), so
> the object file should be added to the target object file.
> 
> Fixes these build errors:
> 
> mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `FSE_buildDTable_internal':
> decompress.c:(.text.FSE_buildDTable_internal+0x48): undefined reference to `__ashldi3'
> mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `FSE_decompress_wksp_body_default':
> decompress.c:(.text.FSE_decompress_wksp_body_default+0xa8): undefined reference to `__ashldi3'
> mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `ZSTD_getFrameHeader_advanced':
> decompress.c:(.text.ZSTD_getFrameHeader_advanced+0x134): undefined reference to `__ashldi3'
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
>  arch/mips/boot/compressed/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
> index 2861a05c2e0c..f27cf31b4140 100644
> --- a/arch/mips/boot/compressed/Makefile
> +++ b/arch/mips/boot/compressed/Makefile
> @@ -52,7 +52,7 @@ endif
>  
>  vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
>  
> -vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o
> +vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o
>  
>  targets := $(notdir $(vmlinuzobjs-y))
>  
> -- 
> 2.33.0

applied to mips-fixes.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]