| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # |
| 3 | # Makefile for the linux s390-specific parts of the memory manager. |
| 4 | # |
| 5 | |
| 6 | KCOV_INSTRUMENT := n |
| 7 | GCOV_PROFILE := n |
| 8 | UBSAN_SANITIZE := n |
| 9 | KASAN_SANITIZE := n |
| 10 | |
| 11 | KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR) |
| 12 | KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR) |
| 13 | |
| 14 | # |
| 15 | # Use -march=z900 for als.c to be able to print an error |
| 16 | # message if the kernel is started on a machine which is too old |
| 17 | # |
| 18 | ifneq ($(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 += $(CC_FLAGS_MARCH) |
| 26 | CFLAGS_sclp_early_core.o += -march=z900 |
| 27 | endif |
| 28 | |
| 29 | CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char |
| 30 | |
| 31 | obj-y := head.o als.o ebcdic.o sclp_early_core.o mem.o |
| 32 | targets := bzImage startup.a $(obj-y) |
| 33 | subdir- := compressed |
| 34 | |
| 35 | OBJECTS := $(addprefix $(obj)/,$(obj-y)) |
| 36 | |
| 37 | $(obj)/bzImage: $(obj)/compressed/vmlinux FORCE |
| 38 | $(call if_changed,objcopy) |
| 39 | |
| 40 | $(obj)/compressed/vmlinux: $(obj)/startup.a FORCE |
| 41 | $(Q)$(MAKE) $(build)=$(obj)/compressed $@ |
| 42 | |
| 43 | quiet_cmd_ar = AR $@ |
| 44 | cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(filter $(OBJECTS), $^) |
| 45 | |
| 46 | $(obj)/startup.a: $(OBJECTS) FORCE |
| 47 | $(call if_changed,ar) |
| 48 | |
| 49 | install: $(CONFIGURE) $(obj)/bzImage |
| 50 | sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ |
| 51 | System.map "$(INSTALL_PATH)" |
| 52 | |
| 53 | chkbss := $(OBJECTS) |
| 54 | chkbss-target := $(obj)/startup.a |
| 55 | include $(srctree)/arch/s390/scripts/Makefile.chkbss |