From: Greg Hackmann <ghackmann@xxxxxxxxxx> Without any extra guidance, clang will generate libstub with either absolute or relative ELF relocations. Use the right combination of -fpic and -fno-pic on different files to avoid this. Signed-off-by: Greg Hackmann <ghackmann@xxxxxxxxxx> Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@xxxxxxxxxx> Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx> --- drivers/firmware/efi/libstub/Makefile | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index f7425960f6a5..ccbaaf4d8650 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -11,6 +11,9 @@ cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ -O2 \ -mno-mmx -mno-sse cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) +ifeq ($(cc-name),clang) +cflags-$(CONFIG_ARM64) += -fpic +endif cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \ -fno-builtin -fpic -mno-single-pic-base @@ -38,6 +41,9 @@ $(obj)/lib-%.o: $(srctree)/lib/%.c FORCE lib-$(CONFIG_EFI_ARMSTUB) += arm-stub.o fdt.o string.o random.o \ $(patsubst %.c,lib-%.o,$(arm-deps)) +ifeq ($(cc-name),clang) +CFLAGS_arm64-stub.o += -fno-pic +endif lib-$(CONFIG_ARM) += arm32-stub.o lib-$(CONFIG_ARM64) += arm64-stub.o -- 2.13.0.rc2.291.g57267f2277-goog -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
