1db569afaSSam Ravnborg# 2db569afaSSam Ravnborg# linux/arch/x86/boot/compressed/Makefile 3db569afaSSam Ravnborg# 4db569afaSSam Ravnborg# create a compressed vmlinux image from the original vmlinux 5db569afaSSam Ravnborg# 6db569afaSSam Ravnborg 730314804SLasse Collintargets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o 8db569afaSSam Ravnborg 9db569afaSSam RavnborgKBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 10db569afaSSam RavnborgKBUILD_CFLAGS += -fno-strict-aliasing -fPIC 1195a38f34SH. Peter AnvinKBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING 1217a2a9b5SH. Peter Anvincflags-$(CONFIG_X86_32) := -march=i386 13db569afaSSam Ravnborgcflags-$(CONFIG_X86_64) := -mcmodel=small 14db569afaSSam RavnborgKBUILD_CFLAGS += $(cflags-y) 15db569afaSSam RavnborgKBUILD_CFLAGS += $(call cc-option,-ffreestanding) 16db569afaSSam RavnborgKBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 17db569afaSSam Ravnborg 18db569afaSSam RavnborgKBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 197bf99fb6SPeter OberparleiterGCOV_PROFILE := n 20db569afaSSam Ravnborg 21db569afaSSam RavnborgLDFLAGS := -m elf_$(UTS_MACHINE) 22db569afaSSam RavnborgLDFLAGS_vmlinux := -T 23db569afaSSam Ravnborg 2402a884c0SH. Peter Anvinhostprogs-y := mkpiggy 2512871c56SMatt FlemingHOST_EXTRACFLAGS += -I$(srctree)/tools/include 2602a884c0SH. Peter Anvin 27291f3632SMatt FlemingVMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \ 28291f3632SMatt Fleming $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \ 29291f3632SMatt Fleming $(obj)/piggy.o 30291f3632SMatt Fleming 31*9dead5bbSMatthew Garrett$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone 32*9dead5bbSMatthew Garrett$(obj)/efi_stub_$(BITS).o: KBUILD_CLFAGS += -fshort-wchar -mno-red-zone 33*9dead5bbSMatthew Garrett 34291f3632SMatt Flemingifeq ($(CONFIG_EFI_STUB), y) 35291f3632SMatt Fleming VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o 36291f3632SMatt Flemingendif 37291f3632SMatt Fleming 38291f3632SMatt Fleming$(obj)/vmlinux: $(VMLINUX_OBJS) FORCE 39db569afaSSam Ravnborg $(call if_changed,ld) 40db569afaSSam Ravnborg @: 41db569afaSSam Ravnborg 42099e1377SIan CampbellOBJCOPYFLAGS_vmlinux.bin := -R .comment -S 43db569afaSSam Ravnborg$(obj)/vmlinux.bin: vmlinux FORCE 44db569afaSSam Ravnborg $(call if_changed,objcopy) 45db569afaSSam Ravnborg 466520fe55SH. Peter Anvintargets += vmlinux.bin.all vmlinux.relocs 47db569afaSSam Ravnborg 486520fe55SH. Peter AnvinCMD_RELOCS = arch/x86/tools/relocs 49db569afaSSam Ravnborgquiet_cmd_relocs = RELOCS $@ 506520fe55SH. Peter Anvin cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $< 516520fe55SH. Peter Anvin$(obj)/vmlinux.relocs: vmlinux FORCE 52db569afaSSam Ravnborg $(call if_changed,relocs) 53db569afaSSam Ravnborg 54db569afaSSam Ravnborgvmlinux.bin.all-y := $(obj)/vmlinux.bin 555f11e020SH. Peter Anvinvmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs 56db569afaSSam Ravnborg 575f11e020SH. Peter Anvin$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE 58db569afaSSam Ravnborg $(call if_changed,gzip) 595f11e020SH. Peter Anvin$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE 60ae03c499SAlain Knaff $(call if_changed,bzip2) 615f11e020SH. Peter Anvin$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE 62ae03c499SAlain Knaff $(call if_changed,lzma) 6330314804SLasse Collin$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE 6430314804SLasse Collin $(call if_changed,xzkern) 6513510997SAlbin Tonnerre$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE 6613510997SAlbin Tonnerre $(call if_changed,lzo) 67db569afaSSam Ravnborg 68283ab1c0SH. Peter Anvinsuffix-$(CONFIG_KERNEL_GZIP) := gz 69283ab1c0SH. Peter Anvinsuffix-$(CONFIG_KERNEL_BZIP2) := bz2 70283ab1c0SH. Peter Anvinsuffix-$(CONFIG_KERNEL_LZMA) := lzma 7130314804SLasse Collinsuffix-$(CONFIG_KERNEL_XZ) := xz 7213510997SAlbin Tonnerresuffix-$(CONFIG_KERNEL_LZO) := lzo 73ae03c499SAlain Knaff 7402a884c0SH. Peter Anvinquiet_cmd_mkpiggy = MKPIGGY $@ 7502a884c0SH. Peter Anvin cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false ) 7602a884c0SH. Peter Anvin 7702a884c0SH. Peter Anvintargets += piggy.S 7802a884c0SH. Peter Anvin$(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE 7902a884c0SH. Peter Anvin $(call if_changed,mkpiggy) 80