buildroot/target/cramfs/cramfs.mk

44 lines
1.5 KiB
Makefile

#############################################################
#
# Build the cramfs root filesystem image
#
#############################################################
ifeq ($(BR2_ENDIAN),"BIG")
CRAMFS_OPTS=-b
else
CRAMFS_OPTS=-l
endif
ifneq ($(TARGET_DEVICE_TABLE),)
CRAMFS_OPTS += -D $(TARGET_DEVICE_TABLE)
endif
CRAMFS_TARGET=$(IMAGE).cramfs
cramfsroot: host-fakeroot host-cramfs makedevs
# Use fakeroot to pretend all target binaries are owned by root
rm -f $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
touch $(BUILD_DIR)/.fakeroot.00000
cat $(BUILD_DIR)/.fakeroot* > $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
echo "chown -R 0:0 $(TARGET_DIR)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
ifneq ($(TARGET_DEVICE_TABLE),)
# Use fakeroot to pretend to create all needed device nodes
echo "$(HOST_DIR)/usr/bin/makedevs -d $(TARGET_DEVICE_TABLE) $(TARGET_DIR)" \
>> $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
endif
# Use fakeroot so mkcramfs believes the previous fakery
echo "$(HOST_DIR)/usr/bin/mkcramfs -q $(CRAMFS_OPTS) " \
"$(TARGET_DIR) $(CRAMFS_TARGET)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
chmod a+x $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
$(HOST_DIR)/usr/bin/fakeroot -- $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
-@rm -f $(BUILD_DIR)/_fakeroot.$(notdir $(CRAMFS_TARGET))
#############################################################
#
# Toplevel Makefile options
#
#############################################################
ifeq ($(BR2_TARGET_ROOTFS_CRAMFS),y)
TARGETS+=cramfsroot
endif