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

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Date:   Fri, 19 Nov 2021 17:50:52 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
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, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH] MIPS: boot/compressed/: add __ashldi3 to target for ZSTD compression

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