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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
- ROOTFS_DEVICE_TABLES = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE) \
- $(BR2_ROOTFS_STATIC_DEVICE_TABLE))
- ROOTFS_USERS_TABLES = $(call qstrip,$(BR2_ROOTFS_USERS_TABLES))
- ROOTFS_FULL_DEVICES_TABLE = $(FS_DIR)/full_devices_table.txt
- ROOTFS_FULL_USERS_TABLE = $(FS_DIR)/full_users_table.txt
- ROOTFS_COMMON_NAME = rootfs-common
- ROOTFS_COMMON_TYPE = rootfs
- ROOTFS_COMMON_DEPENDENCIES = \
- host-fakeroot host-makedevs \
- $(BR2_TAR_HOST_DEPENDENCY) \
- $(if $(PACKAGES_USERS)$(ROOTFS_USERS_TABLES),host-mkpasswd)
- ifeq ($(BR2_REPRODUCIBLE),y)
- define ROOTFS_REPRODUCIBLE
- find $(TARGET_DIR) -print0 | xargs -0 -r touch -hd @$(SOURCE_DATE_EPOCH)
- endef
- endif
- ifeq ($(BR2_PACKAGE_REFPOLICY),y)
- define ROOTFS_SELINUX
- $(HOST_DIR)/sbin/setfiles -m -r $(TARGET_DIR) \
- -c $(TARGET_DIR)/etc/selinux/targeted/policy/policy.$(BR2_PACKAGE_LIBSEPOL_POLICY_VERSION) \
- $(TARGET_DIR)/etc/selinux/targeted/contexts/files/file_contexts \
- $(TARGET_DIR)
- endef
- ROOTFS_COMMON_DEPENDENCIES += host-policycoreutils
- endif
- ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES = $(sort \
- $(if $(filter undefined,$(origin ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES__X)), \
- $(eval ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES__X := \
- $(foreach p, \
- $(ROOTFS_COMMON_DEPENDENCIES), \
- $(p) \
- $($(call UPPERCASE,$(p))_FINAL_RECURSIVE_DEPENDENCIES) \
- ) \
- ) \
- ) \
- $(ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES__X))
- .PHONY: rootfs-common
- rootfs-common: $(ROOTFS_COMMON_DEPENDENCIES) target-finalize
- @$(call MESSAGE,"Generating root filesystems common tables")
- rm -rf $(FS_DIR)
- mkdir -p $(FS_DIR)
- $(call PRINTF,$(PACKAGES_USERS)) >> $(ROOTFS_FULL_USERS_TABLE)
- ifneq ($(ROOTFS_USERS_TABLES),)
- cat $(ROOTFS_USERS_TABLES) >> $(ROOTFS_FULL_USERS_TABLE)
- endif
- $(call PRINTF,$(PACKAGES_PERMISSIONS_TABLE)) > $(ROOTFS_FULL_DEVICES_TABLE)
- ifneq ($(ROOTFS_DEVICE_TABLES),)
- cat $(ROOTFS_DEVICE_TABLES) >> $(ROOTFS_FULL_DEVICES_TABLE)
- endif
- ifeq ($(BR2_ROOTFS_DEVICE_CREATION_STATIC),y)
- $(call PRINTF,$(PACKAGES_DEVICES_TABLE)) >> $(ROOTFS_FULL_DEVICES_TABLE)
- endif
- rootfs-common-show-depends:
- @echo $(ROOTFS_COMMON_DEPENDENCIES)
- .PHONY: rootfs-common-show-info
- rootfs-common-show-info:
- @:
- $(info $(call clean-json,{ $(call json-info,ROOTFS_COMMON) }))
- # Since this function will be called from within an $(eval ...)
- # all variable references except the arguments must be $$-quoted.
- define inner-rootfs
- ROOTFS_$(2)_NAME = rootfs-$(1)
- ROOTFS_$(2)_TYPE = rootfs
- ROOTFS_$(2)_IMAGE_NAME ?= rootfs.$(1)
- ROOTFS_$(2)_FINAL_IMAGE_NAME = $$(strip $$(ROOTFS_$(2)_IMAGE_NAME))
- ROOTFS_$(2)_DIR = $$(FS_DIR)/$(1)
- ROOTFS_$(2)_TARGET_DIR = $$(ROOTFS_$(2)_DIR)/target
- ROOTFS_$(2)_DEPENDENCIES += rootfs-common
- ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES = $$(sort \
- $$(if $$(filter undefined,$$(origin ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES__X)), \
- $$(eval ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES__X := \
- $$(foreach p, \
- $$(ROOTFS_$(2)_DEPENDENCIES), \
- $$(p) \
- $$($$(call UPPERCASE,$$(p))_FINAL_RECURSIVE_DEPENDENCIES) \
- ) \
- ) \
- ) \
- $$(ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES__X))
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
- ROOTFS_$(2)_COMPRESS_EXT = .gz
- ROOTFS_$(2)_COMPRESS_CMD = gzip -9 -c -n
- endif
- ifeq ($$(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 ($$(BR2_TARGET_ROOTFS_$(2)_LZ4),y)
- ROOTFS_$(2)_DEPENDENCIES += host-lz4
- ROOTFS_$(2)_COMPRESS_EXT = .lz4
- ROOTFS_$(2)_COMPRESS_CMD = lz4 -l -9 -c
- endif
- ifeq ($$(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
- ifeq ($(BR2_REPRODUCIBLE),)
- ROOTFS_$(2)_COMPRESS_CMD += -T $(PARALLEL_JOBS)
- endif
- endif
- $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME): ROOTFS=$(2)
- $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME): FAKEROOT_SCRIPT=$$(ROOTFS_$(2)_DIR)/fakeroot
- $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME): $$(ROOTFS_$(2)_DEPENDENCIES)
- @$$(call MESSAGE,"Generating filesystem image $$(ROOTFS_$(2)_FINAL_IMAGE_NAME)")
- mkdir -p $$(@D)
- rm -rf $$(ROOTFS_$(2)_DIR)
- mkdir -p $$(ROOTFS_$(2)_DIR)
- rsync -auH \
- --exclude=/$$(notdir $$(TARGET_DIR_WARNING_FILE)) \
- $$(BASE_TARGET_DIR)/ \
- $$(TARGET_DIR)
- echo '#!/bin/sh' > $$(FAKEROOT_SCRIPT)
- echo "set -e" >> $$(FAKEROOT_SCRIPT)
- echo "chown -h -R 0:0 $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
- PATH=$$(BR_PATH) $$(TOPDIR)/support/scripts/mkusers $$(ROOTFS_FULL_USERS_TABLE) $$(TARGET_DIR) >> $$(FAKEROOT_SCRIPT)
- echo "$$(HOST_DIR)/bin/makedevs -d $$(ROOTFS_FULL_DEVICES_TABLE) $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
- $$(foreach hook,$$(ROOTFS_PRE_CMD_HOOKS),\
- $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
- $$(foreach s,$$(call qstrip,$$(BR2_ROOTFS_POST_FAKEROOT_SCRIPT)),\
- echo "echo '$$(TERM_BOLD)>>> Executing fakeroot script $$(s)$$(TERM_RESET)'" >> $$(FAKEROOT_SCRIPT); \
- echo $$(EXTRA_ENV) $$(s) $$(TARGET_DIR) $$(BR2_ROOTFS_POST_SCRIPT_ARGS) >> $$(FAKEROOT_SCRIPT)$$(sep))
- $$(foreach hook,$$(ROOTFS_$(2)_PRE_GEN_HOOKS),\
- $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
- $$(call PRINTF,$$(ROOTFS_REPRODUCIBLE)) >> $$(FAKEROOT_SCRIPT)
- $$(call PRINTF,$$(ROOTFS_SELINUX)) >> $$(FAKEROOT_SCRIPT)
- $$(call PRINTF,$$(ROOTFS_$(2)_CMD)) >> $$(FAKEROOT_SCRIPT)
- chmod a+x $$(FAKEROOT_SCRIPT)
- PATH=$$(BR_PATH) FAKEROOTDONTTRYCHOWN=1 $$(HOST_DIR)/bin/fakeroot -- $$(FAKEROOT_SCRIPT)
- $(Q)rm -rf $$(TARGET_DIR)
- ifneq ($$(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 $$(ROOTFS_$(2)_DEPENDENCIES)
- rootfs-$(1)-show-info:
- @:
- $$(info $$(call clean-json,{ $$(call json-info,ROOTFS_$(2)) }))
- rootfs-$(1): $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME)
- .PHONY: rootfs-$(1) rootfs-$(1)-show-depends rootfs-$(1)-show-info
- ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
- TARGETS_ROOTFS += rootfs-$(1)
- PACKAGES += $$(filter-out rootfs-%,$$(ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES))
- endif
- # Check for legacy POST_TARGETS rules
- ifneq ($$(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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