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.ro kexec-purgatory.c 8PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) 9 10$(obj)/sha256.o: $(srctree)/lib/sha256.c 11 $(call if_changed_rule,cc_o_c) 12 13$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S 14 $(call if_changed_rule,as_o_S) 15 16$(obj)/string.o: $(srctree)/arch/s390/lib/string.c 17 $(call if_changed_rule,cc_o_c) 18 19LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib 20LDFLAGS_purgatory.ro += -z nodefaultlib 21KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes 22KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare 23KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding 24KBUILD_CFLAGS += -c -MD -Os -m64 25KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 26 27$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE 28 $(call if_changed,ld) 29 30CMD_BIN2C = $(objtree)/scripts/basic/bin2c 31quiet_cmd_bin2c = BIN2C $@ 32 cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@ 33 34$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE 35 $(call if_changed,bin2c) 36 37obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += kexec-purgatory.o 38