| 1234567891011121314151617181920212223242526272829303132333435363738394041424344 |
- # 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) \
- $(DISABLE_LATENT_ENTROPY_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 \
- -fno-asynchronous-unwind-tables -fno-unwind-tables \
- $(call cc-option,-fno-addrsig)
- # this code may run with the MMU off so disable unaligned accesses
- CFLAGS_map_range.o += -mstrict-align
- # 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))
- hostprogs := relacheck
- quiet_cmd_piobjcopy = $(quiet_cmd_objcopy)
- cmd_piobjcopy = $(cmd_objcopy) && $(obj)/relacheck $(@) $(<)
- $(obj)/%.pi.o: OBJCOPYFLAGS := --prefix-symbols=__pi_ \
- --remove-section=.note.gnu.property
- $(obj)/%.pi.o: $(obj)/%.o $(obj)/relacheck FORCE
- $(call if_changed,piobjcopy)
- # ensure that all the lib- code ends up as __init code and data
- $(obj)/lib-%.pi.o: OBJCOPYFLAGS += --prefix-alloc-sections=.init
- $(obj)/lib-%.o: $(srctree)/lib/%.c FORCE
- $(call if_changed_rule,cc_o_c)
- obj-y := idreg-override.pi.o \
- map_kernel.pi.o map_range.pi.o \
- lib-fdt.pi.o lib-fdt_ro.pi.o
- obj-$(CONFIG_RELOCATABLE) += relocate.pi.o
- obj-$(CONFIG_RANDOMIZE_BASE) += kaslr_early.pi.o
- obj-$(CONFIG_UNWIND_PATCH_PAC_INTO_SCS) += patch-scs.pi.o
- extra-y := $(patsubst %.pi.o,%.o,$(obj-y))
|
