1#
2# linux/arch/s390/boot/compressed/Makefile
3#
4# create a compressed vmlinux image from the original vmlinux
5#
6
7targets	:= vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
8targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
9targets += misc.o piggy.o sizes.h head.o
10
11KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUX_INCLUDE) -O2
12KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
13KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -msoft-float
14KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
15KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
16
17GCOV_PROFILE := n
18
19OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o)
20OBJECTS += $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o
21
22LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T
23$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS)
24	$(call if_changed,ld)
25	@:
26
27sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p'
28
29quiet_cmd_sizes = GEN $@
30      cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
31
32$(obj)/sizes.h: vmlinux
33	$(call if_changed,sizes)
34
35AFLAGS_head.o += -I$(obj)
36$(obj)/head.o: $(obj)/sizes.h
37
38CFLAGS_misc.o += -I$(obj)
39$(obj)/misc.o: $(obj)/sizes.h
40
41OBJCOPYFLAGS_vmlinux.bin :=  -R .comment -S
42$(obj)/vmlinux.bin: vmlinux
43	$(call if_changed,objcopy)
44
45vmlinux.bin.all-y := $(obj)/vmlinux.bin
46
47suffix-$(CONFIG_KERNEL_GZIP)  := gz
48suffix-$(CONFIG_KERNEL_BZIP2) := bz2
49suffix-$(CONFIG_KERNEL_LZ4)  := lz4
50suffix-$(CONFIG_KERNEL_LZMA)  := lzma
51suffix-$(CONFIG_KERNEL_LZO)  := lzo
52suffix-$(CONFIG_KERNEL_XZ)  := xz
53
54$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
55	$(call if_changed,gzip)
56$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
57	$(call if_changed,bzip2)
58$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y)
59	$(call if_changed,lz4)
60$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
61	$(call if_changed,lzma)
62$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
63	$(call if_changed,lzo)
64$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y)
65	$(call if_changed,xzkern)
66
67LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
68$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
69	$(call if_changed,ld)
70