[mirror_ubuntu-jammy-kernel.git] / arch / s390 / boot / Makefile

# 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 minimum architecture for als.c to be able to print an error
# message if the kernel is started on a machine which is too old
#
ifndef CONFIG_CC_IS_CLANG
CC_FLAGS_MARCH_MINIMUM := -march=z900
else
CC_FLAGS_MARCH_MINIMUM := -march=z10
endif

ifneq ($(CC_FLAGS_MARCH),$(CC_FLAGS_MARCH_MINIMUM))
AFLAGS_REMOVE_head.o		+= $(CC_FLAGS_MARCH)
AFLAGS_head.o			+= $(CC_FLAGS_MARCH_MINIMUM)
AFLAGS_REMOVE_mem.o		+= $(CC_FLAGS_MARCH)
AFLAGS_mem.o			+= $(CC_FLAGS_MARCH_MINIMUM)
CFLAGS_REMOVE_als.o		+= $(CC_FLAGS_MARCH)
CFLAGS_als.o			+= $(CC_FLAGS_MARCH_MINIMUM)
CFLAGS_REMOVE_sclp_early_core.o	+= $(CC_FLAGS_MARCH)
CFLAGS_sclp_early_core.o	+= $(CC_FLAGS_MARCH_MINIMUM)
endif

CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char

obj-y	:= head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
obj-y	+= string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
obj-y	+= version.o pgm_check_info.o ctype.o text_dma.o
obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE))	+= uv.o
obj-$(CONFIG_RELOCATABLE)	+= machine_kexec_reloc.o
obj-$(CONFIG_RANDOMIZE_BASE)	+= kaslr.o
targets	:= bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y)
subdir-	:= compressed

OBJECTS := $(addprefix $(obj)/,$(obj-y))

quiet_cmd_section_cmp = SECTCMP $*
define cmd_section_cmp
	s1=`$(OBJDUMP) -t -j "$*" "$<" | sort | \
		sed -n "/0000000000000000/! s/.*\s$*\s\+//p" | sha256sum`; \
	s2=`$(OBJDUMP) -t -j "$*" "$(word 2,$^)" | sort | \
		sed -n "/0000000000000000/! s/.*\s$*\s\+//p" | sha256sum`; \
	if [ "$$s1" != "$$s2" ]; then \
		echo "error: section $* differs between $< and $(word 2,$^)" >&2; \
		exit 1; \
	fi; \
	touch $@
endef

$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE
	$(call if_changed,objcopy)

$(obj)/section_cmp%: vmlinux $(obj)/compressed/vmlinux FORCE
	$(call if_changed,section_cmp)

$(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
	$(Q)$(MAKE) $(build)=$(obj)/compressed $@

$(obj)/startup.a: $(OBJECTS) FORCE
	$(call if_changed,ar)

install:
	sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
	      System.map "$(INSTALL_PATH)"

chkbss := $(obj-y)
chkbss-target := startup.a
include $(srctree)/arch/s390/scripts/Makefile.chkbss
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	#
	3	# Makefile for the linux s390-specific parts of the memory manager.
	4	#
	5
8282cd64 VG	6	KCOV_INSTRUMENT := n
	7	GCOV_PROFILE := n
	8	UBSAN_SANITIZE := n
0a9b4091	9	KASAN_SANITIZE := n
8282cd64 VG	10
	11	KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
	12	KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
	13
	14	#
c263a4e9	15	# Use minimum architecture for als.c to be able to print an error
8282cd64 VG	16	# message if the kernel is started on a machine which is too old
8282cd64 VG	17	#
c263a4e9 AB	18	ifndef CONFIG_CC_IS_CLANG
	19	CC_FLAGS_MARCH_MINIMUM := -march=z900
	20	else
	21	CC_FLAGS_MARCH_MINIMUM := -march=z10
	22	endif
	23
	24	ifneq ($(CC_FLAGS_MARCH),$(CC_FLAGS_MARCH_MINIMUM))
a1d7d91f	25	AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
c263a4e9	26	AFLAGS_head.o += $(CC_FLAGS_MARCH_MINIMUM)
cad5b35d	27	AFLAGS_REMOVE_mem.o += $(CC_FLAGS_MARCH)
c263a4e9	28	AFLAGS_mem.o += $(CC_FLAGS_MARCH_MINIMUM)
a1d7d91f	29	CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
c263a4e9	30	CFLAGS_als.o += $(CC_FLAGS_MARCH_MINIMUM)
a1d7d91f	31	CFLAGS_REMOVE_sclp_early_core.o += $(CC_FLAGS_MARCH)
c263a4e9	32	CFLAGS_sclp_early_core.o += $(CC_FLAGS_MARCH_MINIMUM)
8282cd64 VG	33	endif
8282cd64 VG	34
a1d7d91f VG	35	CFLAGS_sclp_early_core.o += -I$(srctree)/drivers/s390/char
a1d7d91f VG	36
9641b8cc MS	37	obj-y := head.o als.o startup.o mem_detect.o ipl_parm.o ipl_report.o
9641b8cc MS	38	obj-y += string.o ebcdic.o sclp_early_core.o mem.o ipl_vmparm.o cmdline.o
724dc336	39	obj-y += version.o pgm_check_info.o ctype.o text_dma.o
ecdc5d84	40	obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE)) += uv.o
805bc0bc	41	obj-$(CONFIG_RELOCATABLE) += machine_kexec_reloc.o
b2d24b97	42	obj-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
fd184e1a	43	targets := bzImage startup.a section_cmp.boot.data section_cmp.boot.preserved.data $(obj-y)
8282cd64 VG	44	subdir- := compressed
	45
	46	OBJECTS := $(addprefix $(obj)/,$(obj-y))
1da177e4	47
251b72a4 VG	48	quiet_cmd_section_cmp = SECTCMP $*
	49	define cmd_section_cmp
	50	s1=`$(OBJDUMP) -t -j "$*" "$<" \| sort \| \
	51	sed -n "/0000000000000000/! s/.\s$\s\+//p" \| sha256sum`; \
	52	s2=`$(OBJDUMP) -t -j "$*" "$(word 2,$^)" \| sort \| \
	53	sed -n "/0000000000000000/! s/.\s$\s\+//p" \| sha256sum`; \
	54	if [ "$$s1" != "$$s2" ]; then \
	55	echo "error: section $* differs between $< and $(word 2,$^)" >&2; \
	56	exit 1; \
	57	fi; \
	58	touch $@
	59	endef
	60
fd184e1a	61	$(obj)/bzImage: $(obj)/compressed/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.boot.preserved.data FORCE
1844c9bc MS	62	$(call if_changed,objcopy)
1844c9bc MS	63
251b72a4 VG	64	$(obj)/section_cmp%: vmlinux $(obj)/compressed/vmlinux FORCE
	65	$(call if_changed,section_cmp)
	66
8282cd64	67	$(obj)/compressed/vmlinux: $(obj)/startup.a FORCE
1844c9bc MS	68	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
1844c9bc MS	69
8282cd64 VG	70	$(obj)/startup.a: $(OBJECTS) FORCE
	71	$(call if_changed,ar)
	72
94e90f72	73	install:
aec644e5	74	sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
679e2ea7	75	System.map "$(INSTALL_PATH)"
0580bce1	76
5d680056 MY	77	chkbss := $(obj-y)
5d680056 MY	78	chkbss-target := startup.a
0580bce1	79	include $(srctree)/arch/s390/scripts/Makefile.chkbss