LoongArch: Disable module from accessing external data directly

The distance between vmlinux and the module is too far so that PC-REL
cannot be accessed directly, only GOT.

When compiling module with GCC, the option `-mdirect-extern-access` is
disabled by default. The Clang option `-fdirect-access-external-data` is
enabled by default, so it needs to be explicitly disabled.

Signed-off-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile
index fb0fada43197e4ad520359c8f2a6b6350d48d99d..c31a62521e6b4d7794f5adaadf4190cdb05e9407 100644 (file)
--- a/arch/loongarch/Makefile
+++ b/arch/loongarch/Makefile
@@ -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,-fno-direct-access-external-data)
+KBUILD_CFLAGS_MODULE           += $(call cc-option,-fno-direct-access-external-data)
 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