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