arch/s390/boot/Makefile

   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
  10 KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
  11 KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
  12
  13 #
  14 # Use -march=z900 for als.c to be able to print an error
  15 # message if the kernel is started on a machine which is too old
  16 #
  17 ifneq ($(CC_FLAGS_MARCH),-march=z900)
  18 AFLAGS_REMOVE_head.o            += $(CC_FLAGS_MARCH)
  19 AFLAGS_head.o                   += -march=z900
  20 AFLAGS_REMOVE_mem.o             += $(CC_FLAGS_MARCH)
  21 AFLAGS_mem.o                    += -march=z900
  22 CFLAGS_REMOVE_als.o             += $(CC_FLAGS_MARCH)
  23 CFLAGS_als.o                    += -march=z900
  24 CFLAGS_REMOVE_sclp_early_core.o += $(CC_FLAGS_MARCH)
  25 CFLAGS_sclp_early_core.o        += -march=z900
  26 endif
  27
  28 CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
  29
  30 obj-y   := head.o als.o ebcdic.o sclp_early_core.o mem.o
  31 targets := bzImage startup.a $(obj-y)
  32 subdir- := compressed
  33
  34 OBJECTS := $(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
  42 quiet_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
  48 install: $(CONFIGURE) $(obj)/bzImage
  49         sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
  50               System.map "$(INSTALL_PATH)"
  51
  52 chkbss := $(OBJECTS)
  53 chkbss-target := $(obj)/startup.a
  54 include $(srctree)/arch/s390/scripts/Makefile.chkbss