liyepan/openloongarch-linux-6.12
1
0
Fork 0
mirror of https://gitee.com/open-loongarch/linux-6.12.git synced 2026-10-25 20:47:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

LoongArch: Enable jump table for objtool

Browse Source 
For now, it is time to remove -fno-jump-tables to enable jump table for
objtool if the compiler has -mannotate-tablejump, otherwise it is better
to remain -fno-jump-tables to keep compatibility with older compilers.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: michael <michael5hzg@gmail.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
This commit is contained in:
Tiezhu Yang
2025-02-13 14:26:42 +08:00
committed by maoxiaochuan
parent 121ce00ea7
commit df69d86e25
2 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/loongarch/Kconfig
+3
View File
@@ -284,6 +284,9 @@ config AS_HAS_LBT_EXTENSION
config AS_HAS_LVZ_EXTENSION
def_bool $(as-instr,hvcl 0)
config CC_HAS_ANNOTATE_TABLEJUMP
def_bool $(cc-option,-mannotate-tablejump)
menu "Kernel type and options"
source "kernel/Kconfig.hz"
arch/loongarch/Makefile
+5 -1
View File
@@ -101,7 +101,11 @@ KBUILD_AFLAGS += $(call cc-option,-mthin-add-sub) $(call cc-option,-Wa$(comma)
KBUILD_CFLAGS += $(call cc-option,-mthin-add-sub) $(call cc-option,-Wa$(comma)-mthin-add-sub)
ifdef CONFIG_OBJTOOL
KBUILD_CFLAGS += -fno-jump-tables
ifdef CONFIG_CC_HAS_ANNOTATE_TABLEJUMP
KBUILD_CFLAGS += $(call cc-option,-mannotate-tablejump)
else
KBUILD_CFLAGS += -fno-jump-tables # keep compatibility with older compilers
endif
endif
KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat