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- #
- # Macro that builds the needed Makefile target to create a root
- # filesystem image.
- #
- # The following variable must be defined before calling this macro
- #
- # ROOTFS_$(FSTYPE)_CMD, the command that generates the root
- # filesystem image. A single command is allowed. The filename of the
- # filesystem image that it must generate is $$@.
- #
- # The following variables can optionaly be defined
- #
- # ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
- # build the root filesystem (usually host tools)
- #
- # ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
- # generating the filesystem image
- #
- # ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
- # generating the filesystem image
- #
- # In terms of configuration option, this macro assumes that the
- # BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
- # the generation of a filesystem image of a particular type. If
- # the configuration options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
- # BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
- # BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
- # macro will automatically generate a compressed filesystem image.
- FS_DIR = $(BUILD_DIR)/buildroot-fs
- FAKEROOT_SCRIPT = $(FS_DIR)/fakeroot.fs
- FULL_DEVICE_TABLE = $(FS_DIR)/device_table.txt
- ROOTFS_DEVICE_TABLES = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE) \
- $(BR2_ROOTFS_STATIC_DEVICE_TABLE))
- USERS_TABLE = $(FS_DIR)/users_table.txt
- ROOTFS_USERS_TABLES = $(call qstrip,$(BR2_ROOTFS_USERS_TABLES))
- # Since this function will be called from within an $(eval ...)
- # all variable references except the arguments must be $$-quoted.
- define inner-rootfs
- # extra deps
- ROOTFS_$(2)_DEPENDENCIES += host-fakeroot host-makedevs \
- $$(if $$(PACKAGES_USERS)$$(ROOTFS_USERS_TABLES),host-mkpasswd)
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
- ROOTFS_$(2)_COMPRESS_EXT = .gz
- ROOTFS_$(2)_COMPRESS_CMD = gzip -9 -c
- endif
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)_BZIP2),y)
- ROOTFS_$(2)_COMPRESS_EXT = .bz2
- ROOTFS_$(2)_COMPRESS_CMD = bzip2 -9 -c
- endif
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
- ROOTFS_$(2)_DEPENDENCIES += host-lzma
- ROOTFS_$(2)_COMPRESS_EXT = .lzma
- ROOTFS_$(2)_COMPRESS_CMD = $$(LZMA) -9 -c
- endif
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZO),y)
- ROOTFS_$(2)_DEPENDENCIES += host-lzop
- ROOTFS_$(2)_COMPRESS_EXT = .lzo
- ROOTFS_$(2)_COMPRESS_CMD = $$(LZOP) -9 -c
- endif
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)_XZ),y)
- ROOTFS_$(2)_DEPENDENCIES += host-xz
- ROOTFS_$(2)_COMPRESS_EXT = .xz
- ROOTFS_$(2)_COMPRESS_CMD = xz -9 -C crc32 -c
- endif
- $$(BINARIES_DIR)/rootfs.$(1): target-finalize $$(ROOTFS_$(2)_DEPENDENCIES)
- @$$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
- rm -rf $(FS_DIR)
- mkdir -p $(FS_DIR)
- $$(foreach hook,$$(ROOTFS_$(2)_PRE_GEN_HOOKS),$$(call $$(hook))$$(sep))
- echo '#!/bin/sh' > $$(FAKEROOT_SCRIPT)
- echo "set -e" >> $$(FAKEROOT_SCRIPT)
- echo "chown -h -R 0:0 $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
- ifneq ($$(ROOTFS_USERS_TABLES),)
- cat $$(ROOTFS_USERS_TABLES) >> $$(USERS_TABLE)
- endif
- $$(call PRINTF,$$(PACKAGES_USERS)) >> $$(USERS_TABLE)
- PATH=$$(BR_PATH) $$(TOPDIR)/support/scripts/mkusers $$(USERS_TABLE) $$(TARGET_DIR) >> $$(FAKEROOT_SCRIPT)
- ifneq ($$(ROOTFS_DEVICE_TABLES),)
- cat $$(ROOTFS_DEVICE_TABLES) > $$(FULL_DEVICE_TABLE)
- ifeq ($$(BR2_ROOTFS_DEVICE_CREATION_STATIC),y)
- $$(call PRINTF,$$(PACKAGES_DEVICES_TABLE)) >> $$(FULL_DEVICE_TABLE)
- endif
- endif
- $$(call PRINTF,$$(PACKAGES_PERMISSIONS_TABLE)) >> $$(FULL_DEVICE_TABLE)
- echo "$$(HOST_DIR)/bin/makedevs -d $$(FULL_DEVICE_TABLE) $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
- $$(foreach s,$$(call qstrip,$$(BR2_ROOTFS_POST_FAKEROOT_SCRIPT)),\
- echo "echo '$$(TERM_BOLD)>>> Executing fakeroot script $$(s)$$(TERM_RESET)'" >> $$(FAKEROOT_SCRIPT); \
- echo $$(s) $$(TARGET_DIR) $$(BR2_ROOTFS_POST_SCRIPT_ARGS) >> $$(FAKEROOT_SCRIPT)$$(sep))
- $$(foreach hook,$$(ROOTFS_PRE_CMD_HOOKS),\
- $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
- ifeq ($$(BR2_REPRODUCIBLE),y)
- echo "find $$(TARGET_DIR) -print0 | xargs -0 -r touch -hd @$$(SOURCE_DATE_EPOCH)" >> $$(FAKEROOT_SCRIPT)
- endif
- $$(call PRINTF,$$(ROOTFS_$(2)_CMD)) >> $$(FAKEROOT_SCRIPT)
- $$(foreach hook,$$(ROOTFS_POST_CMD_HOOKS),\
- $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
- chmod a+x $$(FAKEROOT_SCRIPT)
- rm -f $$(TARGET_DIR_WARNING_FILE)
- PATH=$$(BR_PATH) $$(HOST_DIR)/bin/fakeroot -- $$(FAKEROOT_SCRIPT)
- $$(INSTALL) -m 0644 support/misc/target-dir-warning.txt $$(TARGET_DIR_WARNING_FILE)
- ifneq ($$(ROOTFS_$(2)_COMPRESS_CMD),)
- PATH=$$(BR_PATH) $$(ROOTFS_$(2)_COMPRESS_CMD) $$@ > $$@$$(ROOTFS_$(2)_COMPRESS_EXT)
- endif
- $$(foreach hook,$$(ROOTFS_$(2)_POST_GEN_HOOKS),$$(call $$(hook))$$(sep))
- rootfs-$(1)-show-depends:
- @echo $$(ROOTFS_$(2)_DEPENDENCIES)
- rootfs-$(1): $$(BINARIES_DIR)/rootfs.$(1)
- .PHONY: rootfs-$(1) rootfs-$(1)-show-depends
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
- TARGETS_ROOTFS += rootfs-$(1)
- PACKAGES += $$(filter-out rootfs-%,$$(ROOTFS_$(2)_DEPENDENCIES))
- endif
- # Check for legacy POST_TARGETS rules
- ifneq ($$(ROOTFS_$(2)_POST_TARGETS),)
- $$(error Filesystem $(1) uses post-target rules, which are no longer supported.\
- Update $(1) to use post-gen hooks instead)
- endif
- endef
- # $(pkgname) also works well to return the filesystem name
- rootfs = $(call inner-rootfs,$(pkgname),$(call UPPERCASE,$(pkgname)))
- include $(sort $(wildcard fs/*/*.mk))
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