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 targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
   8 targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
   9 targets += misc.o piggy.o sizes.h head.o
  10
  11 KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUX_INCLUDE) -O2
  12 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
  13 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -msoft-float
  14 KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
  15 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
  16
  17 GCOV_PROFILE := n
  18
  19 OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o)
  20 OBJECTS += $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o
  21
  22 LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T
  23 $(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS)
  24         $(call if_changed,ld)
  25         @:
  26
  27 sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p'
  28
  29 quiet_cmd_sizes = GEN $@
  30       cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
  31
  32 $(obj)/sizes.h: vmlinux
  33         $(call if_changed,sizes)
  34
  35 AFLAGS_head.o += -I$(obj)
  36 $(obj)/head.o: $(obj)/sizes.h
  37
  38 CFLAGS_misc.o += -I$(obj)
  39 $(obj)/misc.o: $(obj)/sizes.h
  40
  41 OBJCOPYFLAGS_vmlinux.bin :=  -R .comment -S
  42 $(obj)/vmlinux.bin: vmlinux
  43         $(call if_changed,objcopy)
  44
  45 vmlinux.bin.all-y := $(obj)/vmlinux.bin
  46
  47 suffix-$(CONFIG_KERNEL_GZIP)  := gz
  48 suffix-$(CONFIG_KERNEL_BZIP2) := bz2
  49 suffix-$(CONFIG_KERNEL_LZ4)  := lz4
  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.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
  67 LDFLAGS_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)