[loong64] Disable vector instructions and linker relaxation

Signed-off-by: Xiaotian Wu <[email protected]>

src/arch/loong64/Makefile

@@ -8,6 +8,18 @@ ASM_TCHAR_OPS	:= @
 CFLAGS		+= -fstrength-reduce -fomit-frame-pointer
 CFLAGS		+= -falign-jumps=1 -falign-loops=1 -falign-functions=1
 
+## Check if the follow options is valid for current toolchains
+# -mno-lsx: Disable 128-bit SIMD instructions, added after gcc-14
+# -mno-lasx: Disable 256-bit SIMD instructions, added after gcc-14
+# -mno-relax: Disable linker relaxation, added after gcc-14
+# -Wa,-mno-relax: Disable linker relaxation, added after binutils-2.41
+CHECK_CC_FLAGS := -mno-lsx -mno-lasx -mno-relax -Wa,-mno-relax
+
+define check_cc_flag
+  $(shell $(CC) $(1) -x c -c /dev/null -o /dev/null > /dev/null 2>&1 && echo $(1))
+endef
+CFLAGS += $(foreach flag,$(CHECK_CC_FLAGS),$(call check_cc_flag,$(flag)))
+
 # Check if -mno-explicit-relocs is valid
 ifeq ($(CCTYPE),gcc)
 MNER_TEST = $(CC) -mno-explicit-relocs -x c -c /dev/null -o /dev/null >/dev/null 2>&1