Makefile 2.5 KB

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  1. #
  2. # linux/arch/x86/boot/compressed/Makefile
  3. #
  4. # create a compressed vmlinux image from the original vmlinux
  5. #
  6. targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
  7. vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
  8. KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
  9. KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
  10. KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
  11. cflags-$(CONFIG_X86_32) := -march=i386
  12. cflags-$(CONFIG_X86_64) := -mcmodel=small
  13. KBUILD_CFLAGS += $(cflags-y)
  14. KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
  15. KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
  16. KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
  17. GCOV_PROFILE := n
  18. LDFLAGS := -m elf_$(UTS_MACHINE)
  19. LDFLAGS_vmlinux := -T
  20. hostprogs-y := mkpiggy
  21. HOST_EXTRACFLAGS += -I$(srctree)/tools/include
  22. VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
  23. $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
  24. $(obj)/piggy.o
  25. $(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
  26. ifeq ($(CONFIG_EFI_STUB), y)
  27. VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
  28. endif
  29. $(obj)/vmlinux: $(VMLINUX_OBJS) FORCE
  30. $(call if_changed,ld)
  31. @:
  32. OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
  33. $(obj)/vmlinux.bin: vmlinux FORCE
  34. $(call if_changed,objcopy)
  35. targets += $(patsubst $(obj)/%,%,$(VMLINUX_OBJS)) vmlinux.bin.all vmlinux.relocs
  36. CMD_RELOCS = arch/x86/tools/relocs
  37. quiet_cmd_relocs = RELOCS $@
  38. cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $<
  39. $(obj)/vmlinux.relocs: vmlinux FORCE
  40. $(call if_changed,relocs)
  41. vmlinux.bin.all-y := $(obj)/vmlinux.bin
  42. vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs
  43. $(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
  44. $(call if_changed,gzip)
  45. $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
  46. $(call if_changed,bzip2)
  47. $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
  48. $(call if_changed,lzma)
  49. $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
  50. $(call if_changed,xzkern)
  51. $(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
  52. $(call if_changed,lzo)
  53. $(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE
  54. $(call if_changed,lz4)
  55. suffix-$(CONFIG_KERNEL_GZIP) := gz
  56. suffix-$(CONFIG_KERNEL_BZIP2) := bz2
  57. suffix-$(CONFIG_KERNEL_LZMA) := lzma
  58. suffix-$(CONFIG_KERNEL_XZ) := xz
  59. suffix-$(CONFIG_KERNEL_LZO) := lzo
  60. suffix-$(CONFIG_KERNEL_LZ4) := lz4
  61. quiet_cmd_mkpiggy = MKPIGGY $@
  62. cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
  63. targets += piggy.S
  64. $(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE
  65. $(call if_changed,mkpiggy)