| # |
| # linux/arch/x86/boot/compressed/Makefile |
| # |
| # create a compressed vmlinux image from the original vmlinux |
| # |
| |
| targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o |
| |
| KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 |
| KBUILD_CFLAGS += -fno-strict-aliasing -fPIC |
| KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING |
| cflags-$(CONFIG_X86_32) := -march=i386 |
| 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 := $(KBUILD_CFLAGS) -D__ASSEMBLY__ |
| GCOV_PROFILE := n |
| |
| LDFLAGS := -m elf_$(UTS_MACHINE) |
| LDFLAGS_vmlinux := -T |
| |
| hostprogs-y := mkpiggy |
| HOST_EXTRACFLAGS += -I$(srctree)/tools/include |
| |
| VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \ |
| $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \ |
| $(obj)/piggy.o |
| |
| ifeq ($(CONFIG_EFI_STUB), y) |
| VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o |
| endif |
| |
| $(obj)/vmlinux: $(VMLINUX_OBJS) FORCE |
| $(call if_changed,ld) |
| @: |
| |
| OBJCOPYFLAGS_vmlinux.bin := -R .comment -S |
| $(obj)/vmlinux.bin: vmlinux FORCE |
| $(call if_changed,objcopy) |
| |
| targets += vmlinux.bin.all vmlinux.relocs |
| |
| CMD_RELOCS = arch/x86/tools/relocs |
| quiet_cmd_relocs = RELOCS $@ |
| cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $< |
| $(obj)/vmlinux.relocs: vmlinux FORCE |
| $(call if_changed,relocs) |
| |
| vmlinux.bin.all-y := $(obj)/vmlinux.bin |
| vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs |
| |
| $(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,gzip) |
| $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,bzip2) |
| $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,lzma) |
| $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,xzkern) |
| $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,lzo) |
| |
| suffix-$(CONFIG_KERNEL_GZIP) := gz |
| suffix-$(CONFIG_KERNEL_BZIP2) := bz2 |
| suffix-$(CONFIG_KERNEL_LZMA) := lzma |
| suffix-$(CONFIG_KERNEL_XZ) := xz |
| suffix-$(CONFIG_KERNEL_LZO) := lzo |
| |
| quiet_cmd_mkpiggy = MKPIGGY $@ |
| cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false ) |
| |
| targets += piggy.S |
| $(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE |
| $(call if_changed,mkpiggy) |
