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|
#############################################################
#
# Build the ext2 root filesystem image
#
#############################################################
EXT2_OPTS :=
ifeq ($(BR2_TARGET_ROOTFS_EXT2_SQUASH),y)
EXT2_OPTS += -U
endif
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
endif
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
EXT2_OPTS += -N $(BR2_TARGET_ROOTFS_EXT2_INODES)
endif
ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),)
EXT2_OPTS += -m $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
endif
EXT2_BASE := $(call qstrip,$(BR2_TARGET_ROOTFS_EXT2_OUTPUT))
EXT2_ROOTFS_COMPRESSOR:=
EXT2_ROOTFS_COMPRESSOR_EXT:=
EXT2_ROOTFS_COMPRESSOR_PREREQ:=
ifeq ($(BR2_TARGET_ROOTFS_EXT2_GZIP),y)
EXT2_ROOTFS_COMPRESSOR:=gzip -9 -c
EXT2_ROOTFS_COMPRESSOR_EXT:=gz
endif
ifeq ($(BR2_TARGET_ROOTFS_EXT2_BZIP2),y)
EXT2_ROOTFS_COMPRESSOR:=bzip2 -9 -c
EXT2_ROOTFS_COMPRESSOR_EXT:=bz2
endif
ifeq ($(BR2_TARGET_ROOTFS_EXT2_LZMA),y)
EXT2_ROOTFS_COMPRESSOR:=$(LZMA) -9 -c
EXT2_ROOTFS_COMPRESSOR_EXT:=lzma
EXT2_ROOTFS_COMPRESSOR_PREREQ:=host-lzma
endif
ifneq ($(EXT2_ROOTFS_COMPRESSOR),)
EXT2_TARGET := $(EXT2_BASE).$(EXT2_ROOTFS_COMPRESSOR_EXT)
else
EXT2_TARGET := $(EXT2_BASE)
endif
$(EXT2_BASE): host-fakeroot host-genext2fs makedevs
# Use fakeroot to pretend all target binaries are owned by root
rm -f $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
touch $(BUILD_DIR)/.fakeroot.00000
cat $(BUILD_DIR)/.fakeroot* > $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
echo "chown -R 0:0 $(TARGET_DIR)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
ifneq ($(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 $(EXT2_TARGET))
endif
# Use fakeroot so genext2fs believes the previous fakery
ifeq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
GENEXT2_REALSIZE=`LC_ALL=C du -s -c -k $(TARGET_DIR) | grep total | sed -e "s/total//"`; \
GENEXT2_ADDTOROOTSIZE=`if [ $$GENEXT2_REALSIZE -ge 20000 ]; then echo 16384; else echo 2400; fi`; \
GENEXT2_SIZE=`expr $$GENEXT2_REALSIZE + $$GENEXT2_ADDTOROOTSIZE`; \
GENEXT2_ADDTOINODESIZE=`find $(TARGET_DIR) | wc -l`; \
GENEXT2_INODES=`expr $$GENEXT2_ADDTOINODESIZE + 400`; \
set -x; \
echo "$(HOST_DIR)/usr/bin/genext2fs -b $$GENEXT2_SIZE " \
"-N $$GENEXT2_INODES -d $(TARGET_DIR) " \
"$(EXT2_OPTS) $(EXT2_BASE)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
else
echo "$(HOST_DIR)/usr/bin/genext2fs -d $(TARGET_DIR) " \
"$(EXT2_OPTS) $(EXT2_BASE)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
endif
chmod a+x $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
$(HOST_DIR)/usr/bin/fakeroot -- $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
-@rm -f $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
ifneq ($(EXT2_ROOTFS_COMPRESSOR),)
$(EXT2_BASE).$(EXT2_ROOTFS_COMPRESSOR_EXT): $(EXT2_ROOTFS_COMPRESSOR_PREREQ) $(EXT2_BASE)
$(EXT2_ROOTFS_COMPRESSOR) $(EXT2_BASE) > $(EXT2_TARGET)
endif
ext2root: $(EXT2_TARGET)
#############################################################
#
# Toplevel Makefile options
#
#############################################################
ifeq ($(BR2_TARGET_ROOTFS_EXT2),y)
TARGETS+=ext2root
endif
|
