1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for the linux s390-specific parts of the memory manager.
11 KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
12 KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
15 # Use -march=z900 for als.c to be able to print an error
16 # message if the kernel is started on a machine which is too old
18 ifneq ($(CC_FLAGS_MARCH),-march=z900)
19 AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
20 AFLAGS_head.o += -march=z900
21 AFLAGS_REMOVE_mem.o += $(CC_FLAGS_MARCH)
22 AFLAGS_mem.o += -march=z900
23 CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
24 CFLAGS_als.o += -march=z900
25 CFLAGS_REMOVE_sclp_early_core.o += $(CC_FLAGS_MARCH)
26 CFLAGS_sclp_early_core.o += -march=z900
29 CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
31 obj-y := head.o als.o ebcdic.o sclp_early_core.o mem.o
32 targets := bzImage startup.a $(obj-y)
35 OBJECTS := $(addprefix $(obj)/,$(obj-y))
37 $(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
38 $(call if_changed,objcopy)
40 $(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
41 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
44 cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(filter $(OBJECTS), $^)
46 $(obj)/startup.a: $(OBJECTS) FORCE
50 sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
51 System.map "$(INSTALL_PATH)"
54 chkbss-target := $(obj)/startup.a
55 include $(srctree)/arch/s390/scripts/Makefile.chkbss