diff options
Diffstat (limited to 'arch/s390/boot/compressed/Makefile')
-rw-r--r-- | arch/s390/boot/compressed/Makefile | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile new file mode 100644 index 0000000..6e4a67a --- /dev/null +++ b/arch/s390/boot/compressed/Makefile @@ -0,0 +1,60 @@ +# +# linux/arch/s390/boot/compressed/Makefile +# +# create a compressed vmlinux image from the original vmlinux +# + +BITS := $(if $(CONFIG_64BIT),64,31) + +targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \ + vmlinux.bin.lzma misc.o piggy.o sizes.h head$(BITS).o + +KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 +KBUILD_CFLAGS += $(cflags-y) +KBUILD_CFLAGS += $(call cc-option,-mpacked-stack) +KBUILD_CFLAGS += $(call cc-option,-ffreestanding) + +GCOV_PROFILE := n + +OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o) +OBJECTS += $(obj)/head$(BITS).o $(obj)/misc.o $(obj)/piggy.o + +LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T +$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) + $(call if_changed,ld) + @: + +sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p' + +quiet_cmd_sizes = GEN $@ + cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@ + +$(obj)/sizes.h: vmlinux + $(call if_changed,sizes) + +AFLAGS_head$(BITS).o += -I$(obj) +$(obj)/head$(BITS).o: $(obj)/sizes.h + +CFLAGS_misc.o += -I$(obj) +$(obj)/misc.o: $(obj)/sizes.h + +OBJCOPYFLAGS_vmlinux.bin := -R .comment -S +$(obj)/vmlinux.bin: vmlinux + $(call if_changed,objcopy) + +vmlinux.bin.all-y := $(obj)/vmlinux.bin + +suffix-$(CONFIG_KERNEL_GZIP) := gz +suffix-$(CONFIG_KERNEL_BZIP2) := bz2 +suffix-$(CONFIG_KERNEL_LZMA) := lzma + +$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) + $(call if_changed,gzip) +$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) + $(call if_changed,bzip2) +$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) + $(call if_changed,lzma) + +LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T +$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) + $(call if_changed,ld) |