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LoongArch: Fix module relocation error with binutils 2.41

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Binutils 2.41 enables linker relaxation by default, but the kernel
module loader doesn't support that, so just disable it. Otherwise we
get such an error when loading modules:

"Unknown relocation type 102"

As an alternative, we could add linker relaxation support in the kernel
module loader. But it is relatively large complexity that may or may not
bring a similar gain, and we don't really want to include this linker
pass in the kernel.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen 2023-07-28 10:30:42 +08:00
parent 54c2c9df08
commit 03c53eb90c
1 changed files with 2 additions and 0 deletions
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2
arch/loongarch/Makefile
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@ -68,6 +68,8 @@ LDFLAGS_vmlinux += -static -n -nostdlib
ifdef CONFIG_AS_HAS_EXPLICIT_RELOCS
cflags-y += $(call cc-option,-mexplicit-relocs)
KBUILD_CFLAGS_KERNEL += $(call cc-option,-mdirect-extern-access)
KBUILD_AFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax)
KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax)
else
cflags-y += $(call cc-option,-mno-explicit-relocs)
KBUILD_AFLAGS_KERNEL += -Wa,-mla-global-with-pcrel