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# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the linux s390-specific parts of the memory manager.
#
KCOV_INSTRUMENT := n
GCOV_PROFILE := n
UBSAN_SANITIZE := n
KASAN_SANITIZE := n
KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
#
# Use -march=z900 for als.c to be able to print an error
# message if the kernel is started on a machine which is too old
#
ifneq ($(CC_FLAGS_MARCH),-march=z900)
AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
AFLAGS_head.o += -march=z900
AFLAGS_REMOVE_mem.o += $(CC_FLAGS_MARCH)
AFLAGS_mem.o += -march=z900
CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
CFLAGS_als.o += -march=z900
CFLAGS_REMOVE_sclp_early_core.o += $(CC_FLAGS_MARCH)
CFLAGS_sclp_early_core.o += -march=z900
endif
CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
obj-y := head.o als.o ebcdic.o sclp_early_core.o mem.o
targets := bzImage startup.a $(obj-y)
subdir- := compressed
OBJECTS := $(addprefix $(obj)/,$(obj-y))
$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
$(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
quiet_cmd_ar = AR $@
cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(filter $(OBJECTS), $^)
$(obj)/startup.a: $(OBJECTS) FORCE
$(call if_changed,ar)
install:
sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
System.map "$(INSTALL_PATH)"
chkbss := $(OBJECTS)
chkbss-target := $(obj)/startup.a
include $(srctree)/arch/s390/scripts/Makefile.chkbss
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