boot/grub2/grub2.mk

   1 ################################################################################
   2 #
   3 # grub2
   4 #
   5 ################################################################################
   6
   7 GRUB2_VERSION = 2.00
   8 GRUB2_SITE = $(BR2_GNU_MIRROR)/grub
   9 GRUB2_SOURCE = grub-$(GRUB2_VERSION).tar.xz
  10 GRUB2_LICENSE = GPLv3+
  11 GRUB2_LICENSE_FILES = COPYING
  12 GRUB2_DEPENDENCIES = host-bison host-flex
  13
  14 GRUB2_BUILTIN_MODULES = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES))
  15 GRUB2_BUILTIN_CONFIG = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG))
  16 GRUB2_BOOT_PARTITION = $(call qstrip,$(BR2_TARGET_GRUB2_BOOT_PARTITION))
  17
  18 ifeq ($(BR2_TARGET_GRUB2_I386_PC),y)
  19 GRUB2_IMAGE = $(BINARIES_DIR)/grub.img
  20 GRUB2_CFG = $(TARGET_DIR)/boot/grub/grub.cfg
  21 GRUB2_PREFIX = ($(GRUB2_BOOT_PARTITION))/boot/grub
  22 GRUB2_TUPLE = i386-pc
  23 GRUB2_TARGET = i386
  24 GRUB2_PLATFORM = pc
  25 else ifeq ($(BR2_TARGET_GRUB2_I386_EFI),y)
  26 GRUB2_IMAGE = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootia32.efi
  27 GRUB2_CFG = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
  28 GRUB2_PREFIX = /EFI/BOOT
  29 GRUB2_TUPLE = i386-efi
  30 GRUB2_TARGET = i386
  31 GRUB2_PLATFORM = efi
  32 else ifeq ($(BR2_TARGET_GRUB2_X86_64_EFI),y)
  33 GRUB2_IMAGE = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootx64.efi
  34 GRUB2_CFG = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
  35 GRUB2_PREFIX = /EFI/BOOT
  36 GRUB2_TUPLE = x86_64-efi
  37 GRUB2_TARGET = x86_64
  38 GRUB2_PLATFORM = efi
  39 endif
  40
  41 # Grub2 is kind of special: it considers CC, LD and so on to be the
  42 # tools to build the native tools (i.e to be executed on the build
  43 # machine), and uses TARGET_CC, TARGET_CFLAGS, TARGET_CPPFLAGS,
  44 # TARGET_LDFLAGS to build the bootloader itself. However, to add to
  45 # the confusion, it also uses NM, OBJCOPY and STRIP to build the
  46 # bootloader itself; none of these are used to build the native
  47 # tools.
  48 #
  49 # NOTE: TARGET_STRIP is overridden by BR2_STRIP_none, so always
  50 # use the cross compile variant to ensure grub2 builds
  51
  52 GRUB2_CONF_ENV = \
  53         $(HOST_CONFIGURE_OPTS) \
  54         CPP="$(HOSTCC) -E" \
  55         TARGET_CC="$(TARGET_CC)" \
  56         TARGET_CFLAGS="$(TARGET_CFLAGS)" \
  57         TARGET_CPPFLAGS="$(TARGET_CPPFLAGS)" \
  58         TARGET_LDFLAGS="$(TARGET_LDFLAGS)" \
  59         NM="$(TARGET_NM)" \
  60         OBJCOPY="$(TARGET_OBJCOPY)" \
  61         STRIP="$(TARGET_CROSS)strip"
  62
  63 GRUB2_CONF_OPTS = \
  64         --target=$(GRUB2_TARGET) \
  65         --with-platform=$(GRUB2_PLATFORM) \
  66         --disable-grub-mkfont \
  67         --enable-efiemu=no \
  68         ac_cv_lib_lzma_lzma_code=no \
  69         --enable-device-mapper=no \
  70         --enable-libzfs=no \
  71         --disable-werror
  72
  73 # We don't want all the native tools and Grub2 modules to be installed
  74 # in the target. So we in fact install everything into the host
  75 # directory, and the image generation process (below) will use the
  76 # grub-mkimage tool and Grub2 modules from the host directory.
  77
  78 GRUB2_INSTALL_TARGET_OPTS = DESTDIR=$(HOST_DIR) install
  79
  80 ifeq ($(BR2_TARGET_GRUB2_I386_PC),y)
  81 define GRUB2_IMAGE_INSTALL_ELTORITO
  82         cat $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE)/cdboot.img $(GRUB2_IMAGE) > \
  83                 $(BINARIES_DIR)/grub-eltorito.img
  84 endef
  85 endif
  86
  87 define GRUB2_IMAGE_INSTALLATION
  88         mkdir -p $(dir $(GRUB2_IMAGE))
  89         $(HOST_DIR)/usr/bin/grub-mkimage \
  90                 -d $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE) \
  91                 -O $(GRUB2_TUPLE) \
  92                 -o $(GRUB2_IMAGE) \
  93                 -p "$(GRUB2_PREFIX)" \
  94                 $(if $(GRUB2_BUILTIN_CONFIG),-c $(GRUB2_BUILTIN_CONFIG)) \
  95                 $(GRUB2_BUILTIN_MODULES)
  96         mkdir -p $(dir $(GRUB2_CFG))
  97         $(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG)
  98         $(GRUB2_IMAGE_INSTALL_ELTORITO)
  99 endef
 100 GRUB2_POST_INSTALL_TARGET_HOOKS += GRUB2_IMAGE_INSTALLATION
 101
 102 ifeq ($(GRUB2_PLATFORM),efi)
 103 define GRUB2_EFI_STARTUP_NSH
 104         echo $(notdir $(GRUB2_IMAGE)) > \
 105                 $(BINARIES_DIR)/efi-part/startup.nsh
 106 endef
 107 GRUB2_POST_INSTALL_TARGET_HOOKS += GRUB2_EFI_STARTUP_NSH
 108 endif
 109
 110 $(eval $(autotools-package))