| # |
| # linux/arch/x86/boot/compressed/Makefile |
| # |
| # create a compressed vmlinux image from the original vmlinux |
| # |
| # vmlinuz is: |
| # decompression code (*.o) |
| # asm globals (piggy.S), including: |
| # vmlinux.bin.(gz|bz2|lzma|...) |
| # |
| # vmlinux.bin is: |
| # vmlinux stripped of debugging and comments |
| # vmlinux.bin.all is: |
| # vmlinux.bin + vmlinux.relocs |
| # vmlinux.bin.(gz|bz2|lzma|...) is: |
| # (see scripts/Makefile.lib size_append) |
| # compressed vmlinux.bin.all + u32 size of vmlinux.bin.all |
| |
| targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \ |
| vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 |
| |
| 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 += -mno-mmx -mno-sse |
| 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-y := $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \ |
| $(obj)/string.o $(obj)/cmdline.o \ |
| $(obj)/piggy.o $(obj)/cpuflags.o |
| |
| vmlinux-objs-$(CONFIG_EARLY_PRINTK) += $(obj)/early_serial_console.o |
| vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/aslr.o |
| |
| $(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone |
| |
| vmlinux-objs-$(CONFIG_EFI_STUB) += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o \ |
| $(objtree)/drivers/firmware/efi/libstub/lib.a |
| |
| $(obj)/vmlinux: $(vmlinux-objs-y) FORCE |
| $(call if_changed,ld) |
| @: |
| |
| OBJCOPYFLAGS_vmlinux.bin := -R .comment -S |
| $(obj)/vmlinux.bin: vmlinux FORCE |
| $(call if_changed,objcopy) |
| |
| targets += $(patsubst $(obj)/%,%,$(vmlinux-objs-y)) 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) |
| $(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE |
| $(call if_changed,lz4) |
| |
| suffix-$(CONFIG_KERNEL_GZIP) := gz |
| suffix-$(CONFIG_KERNEL_BZIP2) := bz2 |
| suffix-$(CONFIG_KERNEL_LZMA) := lzma |
| suffix-$(CONFIG_KERNEL_XZ) := xz |
| suffix-$(CONFIG_KERNEL_LZO) := lzo |
| suffix-$(CONFIG_KERNEL_LZ4) := lz4 |
| |
| RUN_SIZE = $(shell $(OBJDUMP) -h vmlinux | \ |
| perl $(srctree)/arch/x86/tools/calc_run_size.pl) |
| quiet_cmd_mkpiggy = MKPIGGY $@ |
| cmd_mkpiggy = $(obj)/mkpiggy $< $(RUN_SIZE) > $@ || ( rm -f $@ ; false ) |
| |
| targets += piggy.S |
| $(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE |
| $(call if_changed,mkpiggy) |
