101 lines
3.4 KiB
Makefile
101 lines
3.4 KiB
Makefile
#############################################################
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#
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# Build the ext2 root filesystem image
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#
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#############################################################
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EXT2_OPTS :=
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ifeq ($(BR2_TARGET_ROOTFS_EXT2_SQUASH),y)
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EXT2_OPTS += -U
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endif
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ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
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EXT2_OPTS += -b $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)
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endif
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ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_INODES)),0)
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EXT2_OPTS += -N $(BR2_TARGET_ROOTFS_EXT2_INODES)
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endif
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ifneq ($(strip $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)),)
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EXT2_OPTS += -m $(BR2_TARGET_ROOTFS_EXT2_RESBLKS)
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endif
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EXT2_BASE := $(call qstrip,$(BR2_TARGET_ROOTFS_EXT2_OUTPUT))
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EXT2_ROOTFS_COMPRESSOR:=
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EXT2_ROOTFS_COMPRESSOR_EXT:=
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EXT2_ROOTFS_COMPRESSOR_PREREQ:=
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ifeq ($(BR2_TARGET_ROOTFS_EXT2_GZIP),y)
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EXT2_ROOTFS_COMPRESSOR:=gzip -9 -c
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EXT2_ROOTFS_COMPRESSOR_EXT:=gz
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endif
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ifeq ($(BR2_TARGET_ROOTFS_EXT2_BZIP2),y)
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EXT2_ROOTFS_COMPRESSOR:=bzip2 -9 -c
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EXT2_ROOTFS_COMPRESSOR_EXT:=bz2
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endif
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ifeq ($(BR2_TARGET_ROOTFS_EXT2_LZMA),y)
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EXT2_ROOTFS_COMPRESSOR:=$(LZMA) -9 -c
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EXT2_ROOTFS_COMPRESSOR_EXT:=lzma
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EXT2_ROOTFS_COMPRESSOR_PREREQ:=host-lzma
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endif
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ifneq ($(EXT2_ROOTFS_COMPRESSOR),)
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EXT2_TARGET := $(EXT2_BASE).$(EXT2_ROOTFS_COMPRESSOR_EXT)
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else
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EXT2_TARGET := $(EXT2_BASE)
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endif
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$(EXT2_BASE): host-fakeroot host-genext2fs makedevs
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# Use fakeroot to pretend all target binaries are owned by root
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rm -f $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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touch $(BUILD_DIR)/.fakeroot.00000
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cat $(BUILD_DIR)/.fakeroot* > $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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echo "chown -R 0:0 $(TARGET_DIR)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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ifneq ($(TARGET_DEVICE_TABLE),)
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# Use fakeroot to pretend to create all needed device nodes
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echo "$(HOST_DIR)/usr/bin/makedevs -d $(TARGET_DEVICE_TABLE) $(TARGET_DIR)" \
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>> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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endif
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# Use fakeroot so genext2fs believes the previous fakery
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ifeq ($(strip $(BR2_TARGET_ROOTFS_EXT2_BLOCKS)),0)
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GENEXT2_REALSIZE=`LC_ALL=C du -s -c -k $(TARGET_DIR) | grep total | sed -e "s/total//"`; \
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GENEXT2_ADDTOROOTSIZE=`if [ $$GENEXT2_REALSIZE -ge 20000 ]; then echo 16384; else echo 2400; fi`; \
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GENEXT2_SIZE=`expr $$GENEXT2_REALSIZE + $$GENEXT2_ADDTOROOTSIZE`; \
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GENEXT2_ADDTOINODESIZE=`find $(TARGET_DIR) | wc -l`; \
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GENEXT2_INODES=`expr $$GENEXT2_ADDTOINODESIZE + 400`; \
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set -x; \
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echo "$(HOST_DIR)/usr/bin/genext2fs -b $$GENEXT2_SIZE " \
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"-N $$GENEXT2_INODES -d $(TARGET_DIR) " \
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"$(EXT2_OPTS) $(EXT2_BASE)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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else
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echo "$(HOST_DIR)/usr/bin/genext2fs -d $(TARGET_DIR) " \
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"$(EXT2_OPTS) $(EXT2_BASE)" >> $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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endif
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chmod a+x $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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$(HOST_DIR)/usr/bin/fakeroot -- $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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-@rm -f $(BUILD_DIR)/_fakeroot.$(notdir $(EXT2_TARGET))
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ifneq ($(EXT2_ROOTFS_COMPRESSOR),)
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$(EXT2_BASE).$(EXT2_ROOTFS_COMPRESSOR_EXT): $(EXT2_ROOTFS_COMPRESSOR_PREREQ) $(EXT2_BASE)
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$(EXT2_ROOTFS_COMPRESSOR) $(EXT2_BASE) > $(EXT2_TARGET)
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endif
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EXT2_COPYTO := $(call qstrip,$(BR2_TARGET_ROOTFS_EXT2_COPYTO))
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ext2root: $(EXT2_TARGET)
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@ls -l $(EXT2_TARGET)
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ifneq ($(EXT2_COPYTO),)
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@cp -f $(EXT2_TARGET) $(EXT2_COPYTO)
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endif
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#############################################################
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#
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# Toplevel Makefile options
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#
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#############################################################
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ifeq ($(BR2_TARGET_ROOTFS_EXT2),y)
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TARGETS+=ext2root
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endif
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