Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2#
3# Makefile for the linux s390-specific parts of the memory manager.
4#
5
6KCOV_INSTRUMENT := n
7GCOV_PROFILE := n
8UBSAN_SANITIZE := n
9
10KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
11KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
12
13#
14# Use -march=z900 for als.c to be able to print an error
15# message if the kernel is started on a machine which is too old
16#
17ifneq ($(CC_FLAGS_MARCH),-march=z900)
18AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
19AFLAGS_head.o += -march=z900
20AFLAGS_REMOVE_mem.o += $(CC_FLAGS_MARCH)
21AFLAGS_mem.o += -march=z900
22CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
23CFLAGS_als.o += -march=z900
24CFLAGS_REMOVE_sclp_early_core.o += $(CC_FLAGS_MARCH)
25CFLAGS_sclp_early_core.o += -march=z900
26endif
27
28CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
29
30obj-y := head.o als.o ebcdic.o sclp_early_core.o mem.o
31targets := bzImage startup.a $(obj-y)
32subdir- := compressed
33
34OBJECTS := $(addprefix $(obj)/,$(obj-y))
35
36$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
37 $(call if_changed,objcopy)
38
39$(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
40 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
41
42quiet_cmd_ar = AR $@
43 cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(filter $(OBJECTS), $^)
44
45$(obj)/startup.a: $(OBJECTS) FORCE
46 $(call if_changed,ar)
47
48install: $(CONFIGURE) $(obj)/bzImage
49 sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
50 System.map "$(INSTALL_PATH)"
51
52chkbss := $(OBJECTS)
53chkbss-target := $(obj)/startup.a
54include $(srctree)/arch/s390/scripts/Makefile.chkbss