| # | |
| # 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 | |
| KASAN_SANITIZE := n | |
| 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 \ | |
| $(objtree)/drivers/firmware/efi/libstub/lib.a | |
| vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o | |
| $(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 | \ | |
| $(CONFIG_SHELL) $(srctree)/arch/x86/tools/calc_run_size.sh) | |
| 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) |