1# 2# linux/arch/s390/boot/compressed/Makefile 3# 4# create a compressed vmlinux image from the original vmlinux 5# 6 7BITS := $(if $(CONFIG_64BIT),64,31) 8 9targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \ 10 vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo misc.o piggy.o \ 11 sizes.h head$(BITS).o 12 13KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 14KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING 15KBUILD_CFLAGS += $(cflags-y) 16KBUILD_CFLAGS += $(call cc-option,-mpacked-stack) 17KBUILD_CFLAGS += $(call cc-option,-ffreestanding) 18 19GCOV_PROFILE := n 20 21OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o) 22OBJECTS += $(obj)/head$(BITS).o $(obj)/misc.o $(obj)/piggy.o 23 24LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T 25$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) 26 $(call if_changed,ld) 27 @: 28 29sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p' 30 31quiet_cmd_sizes = GEN $@ 32 cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@ 33 34$(obj)/sizes.h: vmlinux 35 $(call if_changed,sizes) 36 37AFLAGS_head$(BITS).o += -I$(obj) 38$(obj)/head$(BITS).o: $(obj)/sizes.h 39 40CFLAGS_misc.o += -I$(obj) 41$(obj)/misc.o: $(obj)/sizes.h 42 43OBJCOPYFLAGS_vmlinux.bin := -R .comment -S 44$(obj)/vmlinux.bin: vmlinux 45 $(call if_changed,objcopy) 46 47vmlinux.bin.all-y := $(obj)/vmlinux.bin 48 49suffix-$(CONFIG_KERNEL_GZIP) := gz 50suffix-$(CONFIG_KERNEL_BZIP2) := bz2 51suffix-$(CONFIG_KERNEL_LZMA) := lzma 52suffix-$(CONFIG_KERNEL_LZO) := lzo 53suffix-$(CONFIG_KERNEL_XZ) := xz 54 55$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) 56 $(call if_changed,gzip) 57$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) 58 $(call if_changed,bzip2) 59$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) 60 $(call if_changed,lzma) 61$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) 62 $(call if_changed,lzo) 63$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) 64 $(call if_changed,xzkern) 65 66LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T 67$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) 68 $(call if_changed,ld) 69