Makefile 951 B

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  1. #
  2. # linux/arch/x86_64/boot/compressed/Makefile
  3. #
  4. # create a compressed vmlinux image from the original vmlinux
  5. #
  6. # Note all the files here are compiled/linked as 32bit executables.
  7. #
  8. targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
  9. EXTRA_AFLAGS := -traditional
  10. AFLAGS := $(subst -m64,-m32,$(AFLAGS))
  11. # cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with
  12. # -m32
  13. CFLAGS := -m32 -D__KERNEL__ -Iinclude -O2 -fno-strict-aliasing
  14. LDFLAGS := -m elf_i386
  15. LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32 -m elf_i386
  16. $(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
  17. $(call if_changed,ld)
  18. @:
  19. $(obj)/vmlinux.bin: vmlinux FORCE
  20. $(call if_changed,objcopy)
  21. $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
  22. $(call if_changed,gzip)
  23. LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
  24. $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
  25. $(call if_changed,ld)