2 # linux/arch/x86/boot/compressed/Makefile
4 # create a compressed vmlinux image from the original vmlinux
7 targets := vmlinux vmlinux.bin vmlinux.bin.gz head_32.o misc_32.o piggy.o \
8 vmlinux.bin.all vmlinux.relocs
9 EXTRA_AFLAGS := -traditional
14 CFLAGS := -m32 -D__KERNEL__ $(LINUX_INCLUDE) -O2 \
15 -fno-strict-aliasing -fPIC \
16 $(call cc-option,-ffreestanding) \
17 $(call cc-option,-fno-stack-protector)
18 LDFLAGS := -m elf_i386
20 $(obj)/vmlinux: $(src)/vmlinux_32.lds $(obj)/head_32.o $(obj)/misc_32.o $(obj)/piggy.o FORCE
24 $(obj)/vmlinux.bin: vmlinux FORCE
25 $(call if_changed,objcopy)
27 quiet_cmd_relocs = RELOCS $@
28 cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
29 $(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
30 $(call if_changed,relocs)
32 vmlinux.bin.all-y := $(obj)/vmlinux.bin
33 vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs
34 quiet_cmd_relocbin = BUILD $@
35 cmd_relocbin = cat $(filter-out FORCE,$^) > $@
36 $(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE
37 $(call if_changed,relocbin)
39 ifdef CONFIG_RELOCATABLE
40 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE
41 $(call if_changed,gzip)
43 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
44 $(call if_changed,gzip)
47 LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
49 $(obj)/piggy.o: $(src)/vmlinux_32.scr $(obj)/vmlinux.bin.gz FORCE