Bump buidlroot version to 2018.02.6

bsp/buildroot/system/system.mk

@@ -0,0 +1,88 @@
+################################################################################
+#
+# system-related variables and macros
+#
+################################################################################
+
+# This file exists to define variables and macros that pertain to the system
+# settings, like rsyncing a directory for skeletons, or the /lib vs. /usr/lib
+# symlink handling.
+#
+# Some variables may be used as conditions in Makefile code, so they must be
+# defined properly before they are used; this file is included early, before
+# any package is.
+
+# - SYSTEM_USR_SYMLINKS_OR_DIRS
+#   create /lib, /bin and /sbin, either as directories or as symlinks to
+#   their /usr conterparts
+#
+# - SYSTEM_RSYNC
+#   rsync $(1) to $(2), with proper exclusions and rights
+#
+# - SYSTEM_LIB_SYMLINK
+#   create the appropriate /lib{32,64} symlinks
+#
+# - SYSTEM_GETTY_PORT
+# - SYSTEM_GETTY_BAUDRATE
+# - SYSTEM_GETTY_TERM
+# - SYSTEM_GETTY_OPTIONS
+#   the un-quoted getty setting
+#
+# - SYSTEM_REMOUNT_ROOT_INITTAB
+#   set inittab to remount root read-write or read-only
+#
+
+# This function handles the merged or non-merged /usr cases
+ifeq ($(BR2_ROOTFS_MERGED_USR),y)
+define SYSTEM_USR_SYMLINKS_OR_DIRS
+	ln -snf usr/bin $(1)/bin
+	ln -snf usr/sbin $(1)/sbin
+	ln -snf usr/lib $(1)/lib
+endef
+else
+define SYSTEM_USR_SYMLINKS_OR_DIRS
+	$(INSTALL) -d -m 0755 $(1)/bin
+	$(INSTALL) -d -m 0755 $(1)/sbin
+	$(INSTALL) -d -m 0755 $(1)/lib
+endef
+endif
+
+# This function rsyncs the skeleton directory in $(1) to the destination
+# in $(2), which should be either $(TARTGET_DIR) or $(STAGING_DIR)
+define SYSTEM_RSYNC
+	rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
+		--chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
+		$(1)/ $(2)/
+endef
+
+# Make a symlink lib32->lib or lib64->lib as appropriate.
+# MIPS64/n32 requires lib32 even though it's a 64-bit arch.
+# $(1): base dir (either staging or target)
+ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
+define SYSTEM_LIB_SYMLINK
+	ln -snf lib $(1)/lib64
+	ln -snf lib $(1)/usr/lib64
+endef
+else
+define SYSTEM_LIB_SYMLINK
+	ln -snf lib $(1)/lib32
+	ln -snf lib $(1)/usr/lib32
+endef
+endif
+
+SYSTEM_GETTY_PORT = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_PORT))
+SYSTEM_GETTY_BAUDRATE = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_BAUDRATE))
+SYSTEM_GETTY_TERM = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_TERM))
+SYSTEM_GETTY_OPTIONS = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_OPTIONS))
+
+ifeq ($(BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW),y)
+# Find commented line, if any, and remove leading '#'s
+define SYSTEM_REMOUNT_ROOT_INITTAB
+	$(SED) '/^#.*-o remount,rw \/$$/s~^#\+~~' $(TARGET_DIR)/etc/inittab
+endef
+else
+# Find uncommented line, if any, and add a leading '#'
+define SYSTEM_REMOUNT_ROOT_INITTAB
+	$(SED) '/^[^#].*-o remount,rw \/$$/s~^~#~' $(TARGET_DIR)/etc/inittab
+endef
+endif