Root/arch/s390/boot/compressed/Makefile

1#
2# linux/arch/s390/boot/compressed/Makefile
3#
4# create a compressed vmlinux image from the original vmlinux
5#
6
7BITS := $(if $(CONFIG_64BIT),64,31)
8
9targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
10       vmlinux.bin.lzma vmlinux.bin.lzo misc.o piggy.o sizes.h head$(BITS).o
11
12KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
13KBUILD_CFLAGS += $(cflags-y)
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 += $(obj)/head$(BITS).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    $(call if_changed,sizes)
34
35AFLAGS_head$(BITS).o += -I$(obj)
36$(obj)/head$(BITS).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_LZMA) := lzma
50suffix-$(CONFIG_KERNEL_LZO) := lzo
51
52$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
53    $(call if_changed,gzip)
54$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
55    $(call if_changed,bzip2)
56$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
57    $(call if_changed,lzma)
58$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
59    $(call if_changed,lzo)
60
61LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
62$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
63    $(call if_changed,ld)
64

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