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 define SKELETON_INSTALL_TARGET_CMDS
  81         rsync -a --ignore-times $(SYNC_VCS_EXCLUSIONS) \
  82                 --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
  83                 $(SKELETON_PATH)/ $(TARGET_DIR)/
  84         $(call SKELETON_USR_SYMLINKS_OR_DIRS,$(TARGET_DIR))
  85         ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
  86         ln -snf lib $(TARGET_DIR)/usr/$(LIB_SYMLINK)
  87         $(INSTALL) -m 0644 support/misc/target-dir-warning.txt \
  88                 $(TARGET_DIR_WARNING_FILE)
  89 endef
  90
  91 # For the staging dir, we don't really care about /bin and /sbin.
  92 # But for consistency with the target dir, and to simplify the code,
  93 # we still handle them for the merged or non-merged /usr cases.
  94 # Since the toolchain is not yet available, the staging is not yet
  95 # populated, so we need to create the directories in /usr
  96 define SKELETON_INSTALL_STAGING_CMDS
  97         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/lib
  98         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/bin
  99         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/sbin
 100         $(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/include
 101         $(call SKELETON_USR_SYMLINKS_OR_DIRS,$(STAGING_DIR))
 102         ln -snf lib $(STAGING_DIR)/$(LIB_SYMLINK)
 103         ln -snf lib $(STAGING_DIR)/usr/$(LIB_SYMLINK)
 104 endef
 105
 106 SKELETON_TARGET_GENERIC_HOSTNAME = $(call qstrip,$(BR2_TARGET_GENERIC_HOSTNAME))
 107 SKELETON_TARGET_GENERIC_ISSUE = $(call qstrip,$(BR2_TARGET_GENERIC_ISSUE))
 108 SKELETON_TARGET_GENERIC_ROOT_PASSWD = $(call qstrip,$(BR2_TARGET_GENERIC_ROOT_PASSWD))
 109 SKELETON_TARGET_GENERIC_PASSWD_METHOD = $(call qstrip,$(BR2_TARGET_GENERIC_PASSWD_METHOD))
 110 SKELETON_TARGET_GENERIC_BIN_SH = $(call qstrip,$(BR2_SYSTEM_BIN_SH))
 111 SKELETON_TARGET_GENERIC_GETTY_PORT = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_PORT))
 112 SKELETON_TARGET_GENERIC_GETTY_BAUDRATE = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_BAUDRATE))
 113 SKELETON_TARGET_GENERIC_GETTY_TERM = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_TERM))
 114 SKELETON_TARGET_GENERIC_GETTY_OPTIONS = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_OPTIONS))
 115
 116 ifneq ($(SKELETON_TARGET_GENERIC_HOSTNAME),)
 117 define SYSTEM_HOSTNAME
 118         mkdir -p $(TARGET_DIR)/etc
 119         echo "$(SKELETON_TARGET_GENERIC_HOSTNAME)" > $(TARGET_DIR)/etc/hostname
 120         $(SED) '$$a \127.0.1.1\t$(SKELETON_TARGET_GENERIC_HOSTNAME)' \
 121                 -e '/^127.0.1.1/d' $(TARGET_DIR)/etc/hosts
 122 endef
 123 TARGET_FINALIZE_HOOKS += SYSTEM_HOSTNAME
 124 endif
 125
 126 ifneq ($(SKELETON_TARGET_GENERIC_ISSUE),)
 127 define SYSTEM_ISSUE
 128         mkdir -p $(TARGET_DIR)/etc
 129         echo "$(SKELETON_TARGET_GENERIC_ISSUE)" > $(TARGET_DIR)/etc/issue
 130 endef
 131 TARGET_FINALIZE_HOOKS += SYSTEM_ISSUE
 132 endif
 133
 134 define SET_NETWORK_LOCALHOST
 135         ( \
 136                 echo "# interface file auto-generated by buildroot"; \
 137                 echo ;                                               \
 138                 echo "auto lo";                                      \
 139                 echo "iface lo inet loopback";                       \
 140         ) > $(TARGET_DIR)/etc/network/interfaces
 141 endef
 142
 143 NETWORK_DHCP_IFACE = $(call qstrip,$(BR2_SYSTEM_DHCP))
 144
 145 ifneq ($(NETWORK_DHCP_IFACE),)
 146 define SET_NETWORK_DHCP
 147         ( \
 148                 echo ;                                               \
 149                 echo "auto $(NETWORK_DHCP_IFACE)";                   \
 150                 echo "iface $(NETWORK_DHCP_IFACE) inet dhcp";        \
 151                 echo "  pre-up /etc/network/nfs_check";              \
 152                 echo "  wait-delay 15";                              \
 153         ) >> $(TARGET_DIR)/etc/network/interfaces
 154         $(INSTALL) -m 0755 -D $(SKELETON_PKGDIR)/nfs_check \
 155                 $(TARGET_DIR)/etc/network/nfs_check
 156 endef
 157 endif
 158
 159 define SET_NETWORK
 160         mkdir -p $(TARGET_DIR)/etc/network/
 161         $(SET_NETWORK_LOCALHOST)
 162         $(SET_NETWORK_DHCP)
 163 endef
 164
 165 TARGET_FINALIZE_HOOKS += SET_NETWORK
 166
 167 # The TARGET_FINALIZE_HOOKS must be sourced only if the users choose to use the
 168 # default skeleton.
 169 ifeq ($(BR2_ROOTFS_SKELETON_DEFAULT),y)
 170
 171 ifeq ($(BR2_TARGET_ENABLE_ROOT_LOGIN),y)
 172 ifeq ($(SKELETON_TARGET_GENERIC_ROOT_PASSWD),)
 173 SYSTEM_ROOT_PASSWORD =
 174 else ifneq ($(filter $$1$$% $$5$$% $$6$$%,$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)),)
 175 SYSTEM_ROOT_PASSWORD = '$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)'
 176 else
 177 SKELETON_DEPENDENCIES += host-mkpasswd
 178 # This variable will only be evaluated in the finalize stage, so we can
 179 # be sure that host-mkpasswd will have already been built by that time.
 180 SYSTEM_ROOT_PASSWORD = "`$(MKPASSWD) -m "$(SKELETON_TARGET_GENERIC_PASSWD_METHOD)" "$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)"`"
 181 endif
 182 else # !BR2_TARGET_ENABLE_ROOT_LOGIN
 183 SYSTEM_ROOT_PASSWORD = "*"
 184 endif
 185
 186 define SKELETON_SYSTEM_SET_ROOT_PASSWD
 187         $(SED) s,^root:[^:]*:,root:$(SYSTEM_ROOT_PASSWORD):, $(TARGET_DIR)/etc/shadow
 188 endef
 189 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_SET_ROOT_PASSWD
 190
 191 ifeq ($(BR2_SYSTEM_BIN_SH_NONE),y)
 192 define SKELETON_SYSTEM_BIN_SH
 193         rm -f $(TARGET_DIR)/bin/sh
 194 endef
 195 else
 196 define SKELETON_SYSTEM_BIN_SH
 197         ln -sf $(SKELETON_TARGET_GENERIC_BIN_SH) $(TARGET_DIR)/bin/sh
 198 endef
 199 endif
 200 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_BIN_SH
 201
 202 ifeq ($(BR2_TARGET_GENERIC_GETTY),y)
 203 ifeq ($(BR2_INIT_SYSV),y)
 204 # In sysvinit inittab, the "id" must not be longer than 4 bytes, so we
 205 # skip the "tty" part and keep only the remaining.
 206 define SKELETON_SYSTEM_GETTY
 207         $(SED) '/# GENERIC_SERIAL$$/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) #~' \
 208                 $(TARGET_DIR)/etc/inittab
 209 endef
 210 else ifeq ($(BR2_INIT_BUSYBOX),y)
 211 # Add getty to busybox inittab
 212 define SKELETON_SYSTEM_GETTY
 213         $(SED) '/# GENERIC_SERIAL$$/s~^.*#~$(SKELETON_TARGET_GENERIC_GETTY_PORT)::respawn:/sbin/getty -L $(SKELETON_TARGET_GENERIC_GETTY_OPTIONS) $(SKELETON_TARGET_GENERIC_GETTY_PORT) $(SKELETON_TARGET_GENERIC_GETTY_BAUDRATE) $(SKELETON_TARGET_GENERIC_GETTY_TERM) #~' \
 214                 $(TARGET_DIR)/etc/inittab
 215 endef
 216 endif
 217 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_GETTY
 218 endif
 219
 220 ifeq ($(BR2_INIT_BUSYBOX)$(BR2_INIT_SYSV),y)
 221 ifeq ($(BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW),y)
 222 # Find commented line, if any, and remove leading '#'s
 223 define SKELETON_SYSTEM_REMOUNT_RW
 224         $(SED) '/^#.*-o remount,rw \/$$/s~^#\+~~' $(TARGET_DIR)/etc/inittab
 225 endef
 226 else
 227 # Find uncommented line, if any, and add a leading '#'
 228 define SKELETON_SYSTEM_REMOUNT_RW
 229         $(SED) '/^[^#].*-o remount,rw \/$$/s~^~#~' $(TARGET_DIR)/etc/inittab
 230 endef
 231 endif
 232 TARGET_FINALIZE_HOOKS += SKELETON_SYSTEM_REMOUNT_RW
 233 endif # BR2_INIT_BUSYBOX || BR2_INIT_SYSV
 234
 235 endif # BR2_ROOTFS_SKELETON_DEFAULT
 236
 237 $(eval $(generic-package))