2 # linux/arch/s390/boot/compressed/Makefile
4 # create a compressed vmlinux image from the original vmlinux
7 BITS := $(if $(CONFIG_64BIT),64,31)
9 targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
10 targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
11 targets += misc.o piggy.o sizes.h head$(BITS).o
13 KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
14 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
15 KBUILD_CFLAGS += $(cflags-y)
16 KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
17 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
21 OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o)
22 OBJECTS += $(obj)/head$(BITS).o $(obj)/misc.o $(obj)/piggy.o
24 LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T
25 $(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS)
29 sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p'
31 quiet_cmd_sizes = GEN $@
32 cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
34 $(obj)/sizes.h: vmlinux
35 $(call if_changed,sizes)
37 AFLAGS_head$(BITS).o += -I$(obj)
38 $(obj)/head$(BITS).o: $(obj)/sizes.h
40 CFLAGS_misc.o += -I$(obj)
41 $(obj)/misc.o: $(obj)/sizes.h
43 OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
44 $(obj)/vmlinux.bin: vmlinux
45 $(call if_changed,objcopy)
47 vmlinux.bin.all-y := $(obj)/vmlinux.bin
49 suffix-$(CONFIG_KERNEL_GZIP) := gz
50 suffix-$(CONFIG_KERNEL_BZIP2) := bz2
51 suffix-$(CONFIG_KERNEL_LZ4) := lz4
52 suffix-$(CONFIG_KERNEL_LZMA) := lzma
53 suffix-$(CONFIG_KERNEL_LZO) := lzo
54 suffix-$(CONFIG_KERNEL_XZ) := xz
56 $(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
57 $(call if_changed,gzip)
58 $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
59 $(call if_changed,bzip2)
60 $(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y)
61 $(call if_changed,lz4)
62 $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
63 $(call if_changed,lzma)
64 $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
65 $(call if_changed,lzo)
66 $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y)
67 $(call if_changed,xzkern)
69 LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
70 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)