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 7ae03c499SAlain Knafftargets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o 8db569afaSSam Ravnborg 9db569afaSSam RavnborgKBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 10db569afaSSam RavnborgKBUILD_CFLAGS += -fno-strict-aliasing -fPIC 1195a38f34SH. Peter AnvinKBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING 12db569afaSSam Ravnborgcflags-$(CONFIG_X86_64) := -mcmodel=small 13db569afaSSam RavnborgKBUILD_CFLAGS += $(cflags-y) 14db569afaSSam RavnborgKBUILD_CFLAGS += $(call cc-option,-ffreestanding) 15db569afaSSam RavnborgKBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 16db569afaSSam Ravnborg 17db569afaSSam RavnborgKBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 18db569afaSSam Ravnborg 19db569afaSSam RavnborgLDFLAGS := -m elf_$(UTS_MACHINE) 20db569afaSSam RavnborgLDFLAGS_vmlinux := -T 21db569afaSSam Ravnborg 22778cb929SIan Campbell$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/piggy.o FORCE 23db569afaSSam Ravnborg $(call if_changed,ld) 24db569afaSSam Ravnborg @: 25db569afaSSam Ravnborg 26099e1377SIan CampbellOBJCOPYFLAGS_vmlinux.bin := -R .comment -S 27db569afaSSam Ravnborg$(obj)/vmlinux.bin: vmlinux FORCE 28db569afaSSam Ravnborg $(call if_changed,objcopy) 29db569afaSSam Ravnborg 30db569afaSSam Ravnborg 317f16a339SH. Peter Anvintargets += vmlinux.bin.all vmlinux.relocs relocs 327f16a339SH. Peter Anvinhostprogs-$(CONFIG_X86_32) += relocs 33db569afaSSam Ravnborg 34db569afaSSam Ravnborgquiet_cmd_relocs = RELOCS $@ 35db569afaSSam Ravnborg cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $< 36db569afaSSam Ravnborg$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE 37db569afaSSam Ravnborg $(call if_changed,relocs) 38db569afaSSam Ravnborg 39db569afaSSam Ravnborgvmlinux.bin.all-y := $(obj)/vmlinux.bin 40db569afaSSam Ravnborgvmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs 41db569afaSSam Ravnborgquiet_cmd_relocbin = BUILD $@ 42db569afaSSam Ravnborg cmd_relocbin = cat $(filter-out FORCE,$^) > $@ 43db569afaSSam Ravnborg$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE 44db569afaSSam Ravnborg $(call if_changed,relocbin) 45db569afaSSam Ravnborg 467f16a339SH. Peter Anvinifeq ($(CONFIG_X86_32),y) 477f16a339SH. Peter Anvin 48db569afaSSam Ravnborgifdef CONFIG_RELOCATABLE 49db569afaSSam Ravnborg$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE 50db569afaSSam Ravnborg $(call if_changed,gzip) 51ae03c499SAlain Knaff$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin.all FORCE 52ae03c499SAlain Knaff $(call if_changed,bzip2) 53ae03c499SAlain Knaff$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin.all FORCE 54ae03c499SAlain Knaff $(call if_changed,lzma) 550530bf37SThomas Gleixnerelse 56db569afaSSam Ravnborg$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE 57db569afaSSam Ravnborg $(call if_changed,gzip) 58ae03c499SAlain Knaff$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE 59ae03c499SAlain Knaff $(call if_changed,bzip2) 60ae03c499SAlain Knaff$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE 61ae03c499SAlain Knaff $(call if_changed,lzma) 620530bf37SThomas Gleixnerendif 63db569afaSSam RavnborgLDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T 64db569afaSSam Ravnborg 65db569afaSSam Ravnborgelse 66ae03c499SAlain Knaff 67db569afaSSam Ravnborg$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE 68db569afaSSam Ravnborg $(call if_changed,gzip) 69ae03c499SAlain Knaff$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE 70ae03c499SAlain Knaff $(call if_changed,bzip2) 71ae03c499SAlain Knaff$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE 72ae03c499SAlain Knaff $(call if_changed,lzma) 73db569afaSSam Ravnborg 74db569afaSSam RavnborgLDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T 75db569afaSSam Ravnborgendif 76db569afaSSam Ravnborg 77ae03c499SAlain Knaffsuffix_$(CONFIG_KERNEL_GZIP) = gz 78ae03c499SAlain Knaffsuffix_$(CONFIG_KERNEL_BZIP2) = bz2 79ae03c499SAlain Knaffsuffix_$(CONFIG_KERNEL_LZMA) = lzma 80ae03c499SAlain Knaff 81ae03c499SAlain Knaff$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix_y) FORCE 82db569afaSSam Ravnborg $(call if_changed,ld) 83