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 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
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 -msoft-float -fno-common
25KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
26KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
27
28$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
29		$(call if_changed,ld)
30
31quiet_cmd_bin2c = BIN2C   $@
32      cmd_bin2c = $(objtree)/scripts/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