package/skeleton/skeleton.mk

   1 ################################################################################
   2 #
   3 # skeleton
   4 #
   5 ################################################################################
   6
   7 # source included in buildroot
   8 SKELETON_SOURCE =
   9
  10 # The skeleton can't depend on the toolchain, since all packages depends on the
  11 # skeleton and the toolchain is a target package, as is skeleton.
  12 # Hence, skeleton would depends on the toolchain and the toolchain would depend
  13 # on skeleton.
  14 SKELETON_ADD_TOOLCHAIN_DEPENDENCY = NO
  15
  16 # The skeleton also handles the merged /usr case in the sysroot
  17 SKELETON_INSTALL_STAGING = YES
  18
  19 ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
  20
  21 SKELETON_PATH = $(call qstrip,$(BR2_ROOTFS_SKELETON_CUSTOM_PATH))
  22
  23 ifeq ($(BR2_ROOTFS_MERGED_USR),y)
  24
  25 # Ensure the user has prepared a merged /usr.
  26 #
  27 # Extract the inode numbers for all of those directories. In case any is
  28 # a symlink, we want to get the inode of the pointed-to directory, so we
  29 # append '/.' to be sure we get the target directory. Since the symlinks
  30 # can be anyway (/bin -> /usr/bin or /usr/bin -> /bin), we do that for
  31 # all of them.
  32 #
  33 SKELETON_LIB_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/lib/.)
  34 SKELETON_BIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/bin/.)
  35 SKELETON_SBIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/sbin/.)
  36 SKELETON_USR_LIB_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/usr/lib/.)
  37 SKELETON_USR_BIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/usr/bin/.)
  38 SKELETON_USR_SBIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/usr/sbin/.)
  39
  40 ifneq ($(SKELETON_LIB_INODE),$(SKELETON_USR_LIB_INODE))
  41 SKELETON_CUSTOM_NOT_MERGED_USR += /lib
  42 endif
  43 ifneq ($(SKELETON_BIN_INODE),$(SKELETON_USR_BIN_INODE))
  44 SKELETON_CUSTOM_NOT_MERGED_USR += /bin
  45 endif
  46 ifneq ($(SKELETON_SBIN_INODE),$(SKELETON_USR_SBIN_INODE))
  47 SKELETON_CUSTOM_NOT_MERGED_USR += /sbin
  48 endif
  49
  50 ifneq ($(SKELETON_CUSTOM_NOT_MERGED_USR),)
  51 $(error Use of systemd as an init system requires a merged /usr. \
  52         However, the custom skeleton in $(SKELETON_PATH) is not \
  53         using a merged /usr for the following directories: \
  54         $(SKELETON_CUSTOM_NOT_MERGED_USR))
  55 endif
  56
  57 endif # merged /usr
  58
  59 else # ! custom skeleton
  60
  61 SKELETON_PATH = system/skeleton
  62
  63 endif # ! custom skeleton
  64
  65 # This function handles the merged or non-merged /usr cases
  66 ifeq ($(BR2_ROOTFS_MERGED_USR),y)
  67 define SKELETON_USR_SYMLINKS_OR_DIRS
  68         ln -snf usr/bin $(1)/bin
  69         ln -snf usr/sbin $(1)/sbin
  70         ln -snf usr/lib $(1)/lib
  71 endef
  72 else
  73 define SKELETON_USR_SYMLINKS_OR_DIRS
  74         $(INSTALL) -d -m 0755 $(1)/bin
  75         $(INSTALL) -d -m 0755 $(1)/sbin
  76         $(INSTALL) -d -m 0755 $(1)/lib
  77 endef
  78 endif
  79
  80 # We make a symlink lib32->lib or lib64->lib as appropriate
  81 # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
  82 ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
  83 SKELETON_LIB_SYMLINK = lib64
  84 else
  85 SKELETON_LIB_SYMLINK = lib32
  86 endif
  87
  88 define SKELETON_INSTALL_TARGET_CMDS
  89         rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
  90                 --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
  91                 $(SKELETON_PATH)/ $(TARGET_DIR)/
  92         $(call SKELETON_USR_SYMLINKS_OR_DIRS,$(TARGET_DIR))
  93         ln -snf lib $(TARGET_DIR)/$(SKELETON_LIB_SYMLINK)
  94         ln -snf lib $(TARGET_DIR)/usr/$(SKELETON_LIB_SYMLINK)
  95         $(INSTALL) -m 0644 support/misc/target-dir-warning.txt \
  96                 $(TARGET_DIR_WARNING_FILE)
  97 endef
  98
  99 # For the staging dir, we don't really care about /bin and /sbin.
 100 # But for consistency with the target dir, and to simplify the code,
 101 # we still handle them for the merged or non-merged /usr cases.
 102 # Since the toolchain is not yet available, the staging is not yet
 103 # populated, so we need to create the directories in /usr
 104 define SKELETON_INSTALL_STAGING_CMDS
 105         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/lib
 106         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/bin
 107         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/sbin
 108         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/include
 109         $(call SKELETON_USR_SYMLINKS_OR_DIRS,$(STAGING_DIR))
 110         ln -snf lib $(STAGING_DIR)/$(SKELETON_LIB_SYMLINK)
 111         ln -snf lib $(STAGING_DIR)/usr/$(SKELETON_LIB_SYMLINK)
 112 endef
 113
 114 SKELETON_TARGET_GENERIC_HOSTNAME = $(call qstrip,$(BR2_TARGET_GENERIC_HOSTNAME))
 115 SKELETON_TARGET_GENERIC_ISSUE = $(call qstrip,$(BR2_TARGET_GENERIC_ISSUE))
 116 SKELETON_TARGET_GENERIC_ROOT_PASSWD = $(call qstrip,$(BR2_TARGET_GENERIC_ROOT_PASSWD))
 117 SKELETON_TARGET_GENERIC_PASSWD_METHOD = $(call qstrip,$(BR2_TARGET_GENERIC_PASSWD_METHOD))
 118 SKELETON_TARGET_GENERIC_BIN_SH = $(call qstrip,$(BR2_SYSTEM_BIN_SH))
 119 SKELETON_TARGET_GENERIC_GETTY_PORT = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_PORT))
 120 SKELETON_TARGET_GENERIC_GETTY_BAUDRATE = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_BAUDRATE))
 121 SKELETON_TARGET_GENERIC_GETTY_TERM = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_TERM))
 122 SKELETON_TARGET_GENERIC_GETTY_OPTIONS = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_OPTIONS))
 123
 124 ifneq ($(SKELETON_TARGET_GENERIC_HOSTNAME),)
 125 define SYSTEM_HOSTNAME
 126         mkdir -p $(TARGET_DIR)/etc
 127         echo "$(SKELETON_TARGET_GENERIC_HOSTNAME)" > $(TARGET_DIR)/etc/hostname
 128         $(SED) '$$a \127.0.1.1\t$(SKELETON_TARGET_GENERIC_HOSTNAME)' \
 129                 -e '/^127.0.1.1/d' $(TARGET_DIR)/etc/hosts
 130 endef
 131 TARGET_FINALIZE_HOOKS += SYSTEM_HOSTNAME
 132 endif
 133
 134 ifneq ($(SKELETON_TARGET_GENERIC_ISSUE),)
 135 define SYSTEM_ISSUE
 136         mkdir -p $(TARGET_DIR)/etc
 137         echo "$(SKELETON_TARGET_GENERIC_ISSUE)" > $(TARGET_DIR)/etc/issue
 138 endef
 139 TARGET_FINALIZE_HOOKS += SYSTEM_ISSUE
 140 endif
 141
 142 define SET_NETWORK_LOCALHOST
 143         ( \
 144                 echo "# interface file auto-generated by buildroot"; \
 145                 echo ;                                               \
 146                 echo "auto lo";                                      \
 147                 echo "iface lo inet loopback";                       \
 148         ) > $(TARGET_DIR)/etc/network/interfaces
 149 endef
 150
 151 NETWORK_DHCP_IFACE = $(call qstrip,$(BR2_SYSTEM_DHCP))
 152
 153 ifneq ($(NETWORK_DHCP_IFACE),)
 154 define SET_NETWORK_DHCP
 155         ( \
 156                 echo ;                                               \
 157                 echo "auto $(NETWORK_DHCP_IFACE)";                   \
 158                 echo "iface $(NETWORK_DHCP_IFACE) inet dhcp";        \
 159                 echo "  pre-up /etc/network/nfs_check";              \
 160                 echo "  wait-delay 15";                              \
 161         ) >> $(TARGET_DIR)/etc/network/interfaces
 162         $(INSTALL) -m 0755 -D $(SKELETON_PKGDIR)/nfs_check \
 163                 $(TARGET_DIR)/etc/network/nfs_check
 164 endef
 165 endif
 166
 167 define SET_NETWORK
 168         mkdir -p $(TARGET_DIR)/etc/network/
 169         $(SET_NETWORK_LOCALHOST)
 170         $(SET_NETWORK_DHCP)
 171 endef
 172
 173 TARGET_FINALIZE_HOOKS += SET_NETWORK
 174
 175 # The TARGET_FINALIZE_HOOKS must be sourced only if the users choose to use the
 176 # default skeleton.
 177 ifeq ($(BR2_ROOTFS_SKELETON_DEFAULT),y)
 178
 179 ifeq ($(BR2_TARGET_ENABLE_ROOT_LOGIN),y)
 180 ifeq ($(SKELETON_TARGET_GENERIC_ROOT_PASSWD),)
 181 SYSTEM_ROOT_PASSWORD =
 182 else ifneq ($(filter $$1$$% $$5$$% $$6$$%,$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)),)
 183 SYSTEM_ROOT_PASSWORD = '$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)'
 184 else
 185 SKELETON_DEPENDENCIES += host-mkpasswd
 186 # This variable will only be evaluated in the finalize stage, so we can
 187 # be sure that host-mkpasswd will have already been built by that time.
 188 SYSTEM_ROOT_PASSWORD = "`$(MKPASSWD) -m "$(SKELETON_TARGET_GENERIC_PASSWD_METHOD)" "$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)"`"
 189 endif
 190 else # !BR2_TARGET_ENABLE_ROOT_LOGIN
 191 SYSTEM_ROOT_PASSWORD = "*"
 192 endif
 193
 194 define SKELETON_SYSTEM_SET_ROOT_PASSWD
 195         $(SED) s,^root:[^:]*:,root:$(SYSTEM_ROOT_PASSWORD):, $(TARGET_DIR)/etc/shadow
 196 endef
 197 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_SET_ROOT_PASSWD
 198
 199 ifeq ($(BR2_SYSTEM_BIN_SH_NONE),y)
 200 define SKELETON_SYSTEM_BIN_SH
 201         rm -f $(TARGET_DIR)/bin/sh
 202 endef
 203 else
 204 define SKELETON_SYSTEM_BIN_SH
 205         ln -sf $(SKELETON_TARGET_GENERIC_BIN_SH) $(TARGET_DIR)/bin/sh
 206 endef
 207 endif
 208 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_BIN_SH
 209
 210 ifeq ($(BR2_TARGET_GENERIC_GETTY),y)
 211 ifeq ($(BR2_INIT_SYSV),y)
 212 # In sysvinit inittab, the "id" must not be longer than 4 bytes, so we
 213 # skip the "tty" part and keep only the remaining.
 214 define SKELETON_SYSTEM_GETTY
 215         $(SED) '/# GENERIC_SERIAL$$/s~^.*#~$(shell echo $(SKELETON_TARGET_GENERIC_GETTY_PORT) | tail -c+4)::respawn:/sbin/getty -L $(SKELETON_TARGET_GENERIC_GETTY_OPTIONS) $(SKELETON_TARGET_GENERIC_GETTY_PORT) $(SKELETON_TARGET_GENERIC_GETTY_BAUDRATE) $(SKELETON_TARGET_GENERIC_GETTY_TERM) #~' \
 216                 $(TARGET_DIR)/etc/inittab
 217 endef
 218 else ifeq ($(BR2_INIT_BUSYBOX),y)
 219 # Add getty to busybox inittab
 220 define SKELETON_SYSTEM_GETTY
 221         $(SED) '/# GENERIC_SERIAL$$/s~^.*#~$(SKELETON_TARGET_GENERIC_GETTY_PORT)::respawn:/sbin/getty -L $(SKELETON_TARGET_GENERIC_GETTY_OPTIONS) $(SKELETON_TARGET_GENERIC_GETTY_PORT) $(SKELETON_TARGET_GENERIC_GETTY_BAUDRATE) $(SKELETON_TARGET_GENERIC_GETTY_TERM) #~' \
 222                 $(TARGET_DIR)/etc/inittab
 223 endef
 224 endif
 225 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_GETTY
 226 endif
 227
 228 ifeq ($(BR2_INIT_BUSYBOX)$(BR2_INIT_SYSV),y)
 229 ifeq ($(BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW),y)
 230 # Find commented line, if any, and remove leading '#'s
 231 define SKELETON_SYSTEM_REMOUNT_RW
 232         $(SED) '/^#.*-o remount,rw \/$$/s~^#\+~~' $(TARGET_DIR)/etc/inittab
 233 endef
 234 else
 235 # Find uncommented line, if any, and add a leading '#'
 236 define SKELETON_SYSTEM_REMOUNT_RW
 237         $(SED) '/^[^#].*-o remount,rw \/$$/s~^~#~' $(TARGET_DIR)/etc/inittab
 238 endef
 239 endif
 240 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_REMOUNT_RW
 241 endif # BR2_INIT_BUSYBOX || BR2_INIT_SYSV
 242
 243 endif # BR2_ROOTFS_SKELETON_DEFAULT
 244
 245 $(eval $(generic-package))