1# SPDX-License-Identifier: GPL-2.0 2 3OBJECT_FILES_NON_STANDARD := y 4 5purgatory-y := head.o purgatory.o string.o sha256.o mem.o 6 7targets += $(purgatory-y) purgatory.lds purgatory purgatory.ro 8PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) 9 10$(obj)/sha256.o: $(srctree)/lib/sha256.c FORCE 11 $(call if_changed_rule,cc_o_c) 12 13$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE 14 $(call if_changed_rule,as_o_S) 15 16$(obj)/string.o: $(srctree)/arch/s390/lib/string.c FORCE 17 $(call if_changed_rule,cc_o_c) 18 19KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes 20KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare 21KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding 22KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common 23KBUILD_CFLAGS += $(CLANG_FLAGS) 24KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 25KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS)) 26 27LDFLAGS_purgatory := -r --no-undefined -nostdlib -z nodefaultlib -T 28$(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE 29 $(call if_changed,ld) 30 31OBJCOPYFLAGS_purgatory.ro := -O elf64-s390 32OBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*' 33OBJCOPYFLAGS_purgatory.ro += --remove-section='.comment' 34OBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*' 35$(obj)/purgatory.ro: $(obj)/purgatory FORCE 36 $(call if_changed,objcopy) 37 38$(obj)/kexec-purgatory.o: $(obj)/kexec-purgatory.S $(obj)/purgatory.ro FORCE 39 $(call if_changed_rule,as_o_S) 40 41obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += kexec-purgatory.o 42