| # SPDX-License-Identifier: GPL-2.0 | |
| # Copyright 2022 Google LLC | |
| KBUILD_CFLAGS := $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) -fpie \ | |
| -Os -DDISABLE_BRANCH_PROFILING $(DISABLE_STACKLEAK_PLUGIN) \ | |
| $(call cc-option,-mbranch-protection=none) \ | |
| -I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \ | |
| -include $(srctree)/include/linux/hidden.h \ | |
| -D__DISABLE_EXPORTS -ffreestanding -D__NO_FORTIFY \ | |
| $(call cc-option,-fno-addrsig) | |
| # remove SCS flags from all objects in this directory | |
| KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) | |
| # disable LTO | |
| KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO), $(KBUILD_CFLAGS)) | |
| GCOV_PROFILE := n | |
| KASAN_SANITIZE := n | |
| KCSAN_SANITIZE := n | |
| UBSAN_SANITIZE := n | |
| KCOV_INSTRUMENT := n | |
| $(obj)/%.pi.o: OBJCOPYFLAGS := --prefix-symbols=__pi_ \ | |
| --remove-section=.note.gnu.property \ | |
| --prefix-alloc-sections=.init | |
| $(obj)/%.pi.o: $(obj)/%.o FORCE | |
| $(call if_changed,objcopy) | |
| $(obj)/lib-%.o: $(srctree)/lib/%.c FORCE | |
| $(call if_changed_rule,cc_o_c) | |
| obj-y := kaslr_early.pi.o lib-fdt.pi.o lib-fdt_ro.pi.o | |
| extra-y := $(patsubst %.pi.o,%.o,$(obj-y)) |