2444085bdc
Add a way for packages to declare files they need instead of relying only on device tables, which creates files no matter if the package is indeed enabled, as we can see for busybox. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
89 lines
3.2 KiB
Makefile
89 lines
3.2 KiB
Makefile
#
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# Macro that builds the needed Makefile target to create a root
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# filesystem image.
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#
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# The following variable must be defined before calling this macro
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#
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# ROOTFS_$(FSTYPE)_CMD, the command that generates the root
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# filesystem image. A single command is allowed. The filename of the
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# filesystem image that it must generate is $$@.
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#
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# The following variables can optionaly be defined
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#
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# ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
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# build the root filesystem (usually host tools)
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#
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# ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
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# generating the filesystem image
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#
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# ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
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# generating the filesystem image
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#
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# ROOTFS_$(FSTYPE)_POST_TARGETS, the list of targets that should be
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# run after running the main filesystem target. This is useful for
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# initramfs, to rebuild the kernel once the initramfs is generated.
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#
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# In terms of configuration option, this macro assumes that the
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# BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
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# the generation of a filesystem image of a particular type. If
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# configura options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
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# BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
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# BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
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# macro will automatically generate a compressed filesystem image.
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FAKEROOT_SCRIPT = $(BUILD_DIR)/_fakeroot.fs
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FULL_DEVICE_TABLE = $(BUILD_DIR)/_device_table.txt
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ROOTFS_DEVICE_TABLES = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE)) \
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$(call qstrip,$(BR2_ROOTFS_STATIC_DEVICE_TABLE))
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define ROOTFS_TARGET_INTERNAL
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# extra deps
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$(eval ROOTFS_$(2)_DEPENDENCIES += host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma))
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$(BINARIES_DIR)/rootfs.$(1): $(ROOTFS_$(2)_DEPENDENCIES)
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@$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
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$(foreach hook,$(ROOTFS_$(2)_PRE_GEN_HOOKS),$(call $(hook))$(sep))
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rm -f $(FAKEROOT_SCRIPT)
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touch $(BUILD_DIR)/.fakeroot.00000
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cat $(BUILD_DIR)/.fakeroot* > $(FAKEROOT_SCRIPT)
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echo "chown -R 0:0 $(TARGET_DIR)" >> $(FAKEROOT_SCRIPT)
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ifneq ($(ROOTFS_DEVICE_TABLES),)
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cat $(ROOTFS_DEVICE_TABLES) > $(FULL_DEVICE_TABLE)
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ifeq ($(BR2_ROOTFS_DEVICE_CREATION_STATIC),y)
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echo -e '$(subst $(sep),\n,$(PACKAGES_DEVICES_TABLE))' >> $(FULL_DEVICE_TABLE)
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endif
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echo -e '$(subst $(sep),\n,$(PACKAGES_PERMISSIONS_TABLE))' >> $(FULL_DEVICE_TABLE)
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echo "$(HOST_DIR)/usr/bin/makedevs -d $(FULL_DEVICE_TABLE) $(TARGET_DIR)" >> $(FAKEROOT_SCRIPT)
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endif
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echo "$(ROOTFS_$(2)_CMD)" >> $(FAKEROOT_SCRIPT)
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chmod a+x $(FAKEROOT_SCRIPT)
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$(HOST_DIR)/usr/bin/fakeroot -- $(FAKEROOT_SCRIPT)
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-@rm -f $(FAKEROOT_SCRIPT) $(FULL_DEVICE_TABLE)
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$(foreach hook,$(ROOTFS_$(2)_POST_GEN_HOOKS),$(call $(hook))$(sep))
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ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
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gzip -9 -c $$@ > $$@.gz
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endif
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ifeq ($$(BR2_TARGET_ROOTFS_$(2)_BZIP2),y)
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bzip2 -9 -c $$@ > $$@.bz2
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endif
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ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
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$(LZMA) -9 -c $$@ > $$@.lzma
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endif
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rootfs-$(1)-show-depends:
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@echo $(ROOTFS_$(2)_DEPENDENCIES)
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rootfs-$(1): $(BINARIES_DIR)/rootfs.$(1) $(ROOTFS_$(2)_POST_TARGETS)
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ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
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TARGETS += rootfs-$(1)
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endif
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endef
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define ROOTFS_TARGET
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$(call ROOTFS_TARGET_INTERNAL,$(1),$(call UPPERCASE,$(1)))
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endef
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include fs/*/*.mk
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