| # |
| # linux/arch/x86/boot/compressed/Makefile |
| # |
| # create a compressed vmlinux image from the original vmlinux |
| # |
| |
| targets := vmlinux vmlinux.bin vmlinux.bin.gz head_$(BITS).o misc_$(BITS).o piggy.o |
| |
| KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 |
| KBUILD_CFLAGS += -fno-strict-aliasing -fPIC |
| cflags-$(CONFIG_X86_64) := -mcmodel=small |
| KBUILD_CFLAGS += $(cflags-y) |
| KBUILD_CFLAGS += $(call cc-option,-ffreestanding) |
| KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) |
| |
| KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ |
| |
| LDFLAGS := -m elf_$(UTS_MACHINE) |
| LDFLAGS_vmlinux := -T |
| |
| $(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/piggy.o FORCE |
| $(call if_changed,ld) |
| @: |
| |
| $(obj)/vmlinux.bin: vmlinux FORCE |
| $(call if_changed,objcopy) |
| |
| |
| ifeq ($(CONFIG_X86_32),y) |
| targets += vmlinux.bin.all vmlinux.relocs |
| hostprogs-y := relocs |
| |
| quiet_cmd_relocs = RELOCS $@ |
| cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $< |
| $(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE |
| $(call if_changed,relocs) |
| |
| vmlinux.bin.all-y := $(obj)/vmlinux.bin |
| vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs |
| quiet_cmd_relocbin = BUILD $@ |
| cmd_relocbin = cat $(filter-out FORCE,$^) > $@ |
| $(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,relocbin) |
| |
| ifdef CONFIG_RELOCATABLE |
| $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE |
| $(call if_changed,gzip) |
| else |
| $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE |
| $(call if_changed,gzip) |
| endif |
| LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T |
| |
| else |
| $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE |
| $(call if_changed,gzip) |
| |
| LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T |
| endif |
| |
| |
| $(obj)/piggy.o: $(obj)/vmlinux_$(BITS).scr $(obj)/vmlinux.bin.gz FORCE |
| $(call if_changed,ld) |