arch/arm64/Makefile

   1 #
   2 # arch/arm64/Makefile
   3 #
   4 # This file is included by the global makefile so that you can add your own
   5 # architecture-specific flags and dependencies.
   6 #
   7 # This file is subject to the terms and conditions of the GNU General Public
   8 # License.  See the file "COPYING" in the main directory of this archive
   9 # for more details.
  10 #
  11 # Copyright (C) 1995-2001 by Russell King
  12
  13 LDFLAGS_vmlinux :=-p --no-undefined -X
  14 CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
  15 OBJCOPYFLAGS    :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
  16 GZFLAGS         :=-9
  17
  18 LIBGCC          := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  19
  20 KBUILD_DEFCONFIG := defconfig
  21
  22 KBUILD_CFLAGS   += -mgeneral-regs-only
  23 ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
  24 KBUILD_CPPFLAGS += -mbig-endian
  25 AS              += -EB
  26 LD              += -EB
  27 else
  28 KBUILD_CPPFLAGS += -mlittle-endian
  29 AS              += -EL
  30 LD              += -EL
  31 endif
  32
  33 comma = ,
  34
  35 CHECKFLAGS      += -D__aarch64__
  36
  37 # Default value
  38 head-y          := arch/arm64/kernel/head.o
  39
  40 # The byte offset of the kernel image in RAM from the start of RAM.
  41 ifeq ($(CONFIG_ARM64_RANDOMIZE_TEXT_OFFSET), y)
  42 TEXT_OFFSET := $(shell awk 'BEGIN {srand(); printf "0x%04x0\n", int(65535 * rand())}')
  43 else
  44 TEXT_OFFSET := 0x00080000
  45 endif
  46
  47 export  TEXT_OFFSET GZFLAGS
  48
  49 core-y          += arch/arm64/kernel/ arch/arm64/mm/
  50 core-$(CONFIG_KVM) += arch/arm64/kvm/
  51 core-$(CONFIG_XEN) += arch/arm64/xen/
  52 core-$(CONFIG_CRYPTO) += arch/arm64/crypto/
  53 libs-y          := arch/arm64/lib/ $(libs-y)
  54 libs-y          += $(LIBGCC)
  55 libs-$(CONFIG_EFI_STUB) += drivers/firmware/efi/libstub/
  56
  57 # Default target when executing plain make
  58 KBUILD_IMAGE    := Image.gz
  59 KBUILD_DTBS     := dtbs
  60
  61 all:    $(KBUILD_IMAGE) $(KBUILD_DTBS)
  62
  63 boot := arch/arm64/boot
  64
  65 Image Image.gz: vmlinux
  66         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  67
  68 zinstall install: vmlinux
  69         $(Q)$(MAKE) $(build)=$(boot) $@
  70
  71 %.dtb: scripts
  72         $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
  73
  74 dtbs: scripts
  75         $(Q)$(MAKE) $(build)=$(boot)/dts dtbs
  76
  77 PHONY += vdso_install
  78 vdso_install:
  79         $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
  80
  81 # We use MRPROPER_FILES and CLEAN_FILES now
  82 archclean:
  83         $(Q)$(MAKE) $(clean)=$(boot)
  84
  85 define archhelp
  86   echo  '* Image.gz      - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
  87   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
  88   echo  '* dtbs          - Build device tree blobs for enabled boards'
  89   echo  '  install       - Install uncompressed kernel'
  90   echo  '  zinstall      - Install compressed kernel'
  91   echo  '                  Install using (your) ~/bin/installkernel or'
  92   echo  '                  (distribution) /sbin/installkernel or'
  93   echo  '                  install to $$(INSTALL_PATH) and run lilo'
  94 endef