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