Commit b1521282 authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Huacai Chen
Browse files

LoongArch: Make LTO case independent in Makefile 



LTO is not only used for Clang, but maybe also used for Rust, make LTO
case out of CONFIG_CC_HAS_ANNOTATE_TABLEJUMP in Makefile.

This is preparation for later patch, no function changes.

Cc: stable@vger.kernel.org
Suggested-by: default avatarWANG Rui <wangrui@loongson.cn>
Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 539d7344

arch/loongarch/Makefile

+5 −5
Original line number Diff line number Diff line
@@ -102,16 +102,16 @@ KBUILD_CFLAGS += $(call cc-option,-mthin-add-sub) $(call cc-option,-Wa$(comma) 


ifdef CONFIG_OBJTOOL

ifdef CONFIG_CC_HAS_ANNOTATE_TABLEJUMP

KBUILD_CFLAGS			+= -mannotate-tablejump

else

KBUILD_CFLAGS			+= -fno-jump-tables # keep compatibility with older compilers

endif

ifdef CONFIG_LTO_CLANG

# The annotate-tablejump option can not be passed to LLVM backend when LTO is enabled.

# Ensure it is aware of linker with LTO, '--loongarch-annotate-tablejump' also needs to

# be passed via '-mllvm' to ld.lld.

KBUILD_CFLAGS			+= -mannotate-tablejump

ifdef CONFIG_LTO_CLANG

KBUILD_LDFLAGS			+= -mllvm --loongarch-annotate-tablejump

endif

else

KBUILD_CFLAGS			+= -fno-jump-tables # keep compatibility with older compilers

endif

endif



KBUILD_RUSTFLAGS		+= --target=loongarch64-unknown-none-softfloat -Ccode-model=small