common.mk 7.8 KB

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  1. #
  2. # Macro that builds the needed Makefile target to create a root
  3. # filesystem image.
  4. #
  5. # The following variable must be defined before calling this macro
  6. #
  7. # ROOTFS_$(FSTYPE)_CMD, the command that generates the root
  8. # filesystem image. A single command is allowed. The filename of the
  9. # filesystem image that it must generate is $$@.
  10. #
  11. # The following variables can optionaly be defined
  12. #
  13. # ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
  14. # build the root filesystem (usually host tools)
  15. #
  16. # ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
  17. # generating the filesystem image
  18. #
  19. # ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
  20. # generating the filesystem image
  21. #
  22. # In terms of configuration option, this macro assumes that the
  23. # BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
  24. # the generation of a filesystem image of a particular type. If
  25. # the configuration options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
  26. # BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
  27. # BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
  28. # macro will automatically generate a compressed filesystem image.
  29. FS_DIR = $(BUILD_DIR)/buildroot-fs
  30. ROOTFS_DEVICE_TABLES = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE) \
  31. $(BR2_ROOTFS_STATIC_DEVICE_TABLE))
  32. ROOTFS_USERS_TABLES = $(call qstrip,$(BR2_ROOTFS_USERS_TABLES))
  33. ROOTFS_FULL_DEVICES_TABLE = $(FS_DIR)/full_devices_table.txt
  34. ROOTFS_FULL_USERS_TABLE = $(FS_DIR)/full_users_table.txt
  35. ROOTFS_COMMON_NAME = rootfs-common
  36. ROOTFS_COMMON_TYPE = rootfs
  37. ROOTFS_COMMON_DEPENDENCIES = \
  38. host-fakeroot host-makedevs \
  39. $(BR2_TAR_HOST_DEPENDENCY) \
  40. $(if $(PACKAGES_USERS)$(ROOTFS_USERS_TABLES),host-mkpasswd)
  41. ifeq ($(BR2_REPRODUCIBLE),y)
  42. define ROOTFS_REPRODUCIBLE
  43. find $(TARGET_DIR) -print0 | xargs -0 -r touch -hd @$(SOURCE_DATE_EPOCH)
  44. endef
  45. endif
  46. ifeq ($(BR2_PACKAGE_REFPOLICY),y)
  47. define ROOTFS_SELINUX
  48. $(HOST_DIR)/sbin/setfiles -m -r $(TARGET_DIR) \
  49. -c $(TARGET_DIR)/etc/selinux/targeted/policy/policy.$(BR2_PACKAGE_LIBSEPOL_POLICY_VERSION) \
  50. $(TARGET_DIR)/etc/selinux/targeted/contexts/files/file_contexts \
  51. $(TARGET_DIR)
  52. endef
  53. ROOTFS_COMMON_DEPENDENCIES += host-policycoreutils
  54. endif
  55. ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES = $(sort \
  56. $(if $(filter undefined,$(origin ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES__X)), \
  57. $(eval ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES__X := \
  58. $(foreach p, \
  59. $(ROOTFS_COMMON_DEPENDENCIES), \
  60. $(p) \
  61. $($(call UPPERCASE,$(p))_FINAL_RECURSIVE_DEPENDENCIES) \
  62. ) \
  63. ) \
  64. ) \
  65. $(ROOTFS_COMMON_FINAL_RECURSIVE_DEPENDENCIES__X))
  66. .PHONY: rootfs-common
  67. rootfs-common: $(ROOTFS_COMMON_DEPENDENCIES) target-finalize
  68. @$(call MESSAGE,"Generating root filesystems common tables")
  69. rm -rf $(FS_DIR)
  70. mkdir -p $(FS_DIR)
  71. $(call PRINTF,$(PACKAGES_USERS)) >> $(ROOTFS_FULL_USERS_TABLE)
  72. ifneq ($(ROOTFS_USERS_TABLES),)
  73. cat $(ROOTFS_USERS_TABLES) >> $(ROOTFS_FULL_USERS_TABLE)
  74. endif
  75. $(call PRINTF,$(PACKAGES_PERMISSIONS_TABLE)) > $(ROOTFS_FULL_DEVICES_TABLE)
  76. ifneq ($(ROOTFS_DEVICE_TABLES),)
  77. cat $(ROOTFS_DEVICE_TABLES) >> $(ROOTFS_FULL_DEVICES_TABLE)
  78. endif
  79. ifeq ($(BR2_ROOTFS_DEVICE_CREATION_STATIC),y)
  80. $(call PRINTF,$(PACKAGES_DEVICES_TABLE)) >> $(ROOTFS_FULL_DEVICES_TABLE)
  81. endif
  82. rootfs-common-show-depends:
  83. @echo $(ROOTFS_COMMON_DEPENDENCIES)
  84. .PHONY: rootfs-common-show-info
  85. rootfs-common-show-info:
  86. @:
  87. $(info $(call clean-json,{ $(call json-info,ROOTFS_COMMON) }))
  88. # Since this function will be called from within an $(eval ...)
  89. # all variable references except the arguments must be $$-quoted.
  90. define inner-rootfs
  91. ROOTFS_$(2)_NAME = rootfs-$(1)
  92. ROOTFS_$(2)_TYPE = rootfs
  93. ROOTFS_$(2)_IMAGE_NAME ?= rootfs.$(1)
  94. ROOTFS_$(2)_FINAL_IMAGE_NAME = $$(strip $$(ROOTFS_$(2)_IMAGE_NAME))
  95. ROOTFS_$(2)_DIR = $$(FS_DIR)/$(1)
  96. ROOTFS_$(2)_TARGET_DIR = $$(ROOTFS_$(2)_DIR)/target
  97. ROOTFS_$(2)_DEPENDENCIES += rootfs-common
  98. ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES = $$(sort \
  99. $$(if $$(filter undefined,$$(origin ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES__X)), \
  100. $$(eval ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES__X := \
  101. $$(foreach p, \
  102. $$(ROOTFS_$(2)_DEPENDENCIES), \
  103. $$(p) \
  104. $$($$(call UPPERCASE,$$(p))_FINAL_RECURSIVE_DEPENDENCIES) \
  105. ) \
  106. ) \
  107. ) \
  108. $$(ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES__X))
  109. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
  110. ROOTFS_$(2)_COMPRESS_EXT = .gz
  111. ROOTFS_$(2)_COMPRESS_CMD = gzip -9 -c -n
  112. endif
  113. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_BZIP2),y)
  114. ROOTFS_$(2)_COMPRESS_EXT = .bz2
  115. ROOTFS_$(2)_COMPRESS_CMD = bzip2 -9 -c
  116. endif
  117. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
  118. ROOTFS_$(2)_DEPENDENCIES += host-lzma
  119. ROOTFS_$(2)_COMPRESS_EXT = .lzma
  120. ROOTFS_$(2)_COMPRESS_CMD = $$(LZMA) -9 -c
  121. endif
  122. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZ4),y)
  123. ROOTFS_$(2)_DEPENDENCIES += host-lz4
  124. ROOTFS_$(2)_COMPRESS_EXT = .lz4
  125. ROOTFS_$(2)_COMPRESS_CMD = lz4 -l -9 -c
  126. endif
  127. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZO),y)
  128. ROOTFS_$(2)_DEPENDENCIES += host-lzop
  129. ROOTFS_$(2)_COMPRESS_EXT = .lzo
  130. ROOTFS_$(2)_COMPRESS_CMD = $$(LZOP) -9 -c
  131. endif
  132. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_XZ),y)
  133. ROOTFS_$(2)_DEPENDENCIES += host-xz
  134. ROOTFS_$(2)_COMPRESS_EXT = .xz
  135. ROOTFS_$(2)_COMPRESS_CMD = xz -9 -C crc32 -c
  136. ifeq ($(BR2_REPRODUCIBLE),)
  137. ROOTFS_$(2)_COMPRESS_CMD += -T $(PARALLEL_JOBS)
  138. endif
  139. endif
  140. $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME): ROOTFS=$(2)
  141. $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME): FAKEROOT_SCRIPT=$$(ROOTFS_$(2)_DIR)/fakeroot
  142. $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME): $$(ROOTFS_$(2)_DEPENDENCIES)
  143. @$$(call MESSAGE,"Generating filesystem image $$(ROOTFS_$(2)_FINAL_IMAGE_NAME)")
  144. mkdir -p $$(@D)
  145. rm -rf $$(ROOTFS_$(2)_DIR)
  146. mkdir -p $$(ROOTFS_$(2)_DIR)
  147. rsync -auH \
  148. --exclude=/$$(notdir $$(TARGET_DIR_WARNING_FILE)) \
  149. $$(BASE_TARGET_DIR)/ \
  150. $$(TARGET_DIR)
  151. echo '#!/bin/sh' > $$(FAKEROOT_SCRIPT)
  152. echo "set -e" >> $$(FAKEROOT_SCRIPT)
  153. echo "chown -h -R 0:0 $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
  154. PATH=$$(BR_PATH) $$(TOPDIR)/support/scripts/mkusers $$(ROOTFS_FULL_USERS_TABLE) $$(TARGET_DIR) >> $$(FAKEROOT_SCRIPT)
  155. echo "$$(HOST_DIR)/bin/makedevs -d $$(ROOTFS_FULL_DEVICES_TABLE) $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
  156. $$(foreach hook,$$(ROOTFS_PRE_CMD_HOOKS),\
  157. $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
  158. $$(foreach s,$$(call qstrip,$$(BR2_ROOTFS_POST_FAKEROOT_SCRIPT)),\
  159. echo "echo '$$(TERM_BOLD)>>> Executing fakeroot script $$(s)$$(TERM_RESET)'" >> $$(FAKEROOT_SCRIPT); \
  160. echo $$(EXTRA_ENV) $$(s) $$(TARGET_DIR) $$(BR2_ROOTFS_POST_SCRIPT_ARGS) >> $$(FAKEROOT_SCRIPT)$$(sep))
  161. $$(foreach hook,$$(ROOTFS_$(2)_PRE_GEN_HOOKS),\
  162. $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
  163. $$(call PRINTF,$$(ROOTFS_REPRODUCIBLE)) >> $$(FAKEROOT_SCRIPT)
  164. $$(call PRINTF,$$(ROOTFS_SELINUX)) >> $$(FAKEROOT_SCRIPT)
  165. $$(call PRINTF,$$(ROOTFS_$(2)_CMD)) >> $$(FAKEROOT_SCRIPT)
  166. chmod a+x $$(FAKEROOT_SCRIPT)
  167. PATH=$$(BR_PATH) FAKEROOTDONTTRYCHOWN=1 $$(HOST_DIR)/bin/fakeroot -- $$(FAKEROOT_SCRIPT)
  168. $(Q)rm -rf $$(TARGET_DIR)
  169. ifneq ($$(ROOTFS_$(2)_COMPRESS_CMD),)
  170. PATH=$$(BR_PATH) $$(ROOTFS_$(2)_COMPRESS_CMD) $$@ > $$@$$(ROOTFS_$(2)_COMPRESS_EXT)
  171. endif
  172. $$(foreach hook,$$(ROOTFS_$(2)_POST_GEN_HOOKS),$$(call $$(hook))$$(sep))
  173. rootfs-$(1)-show-depends:
  174. @echo $$(ROOTFS_$(2)_DEPENDENCIES)
  175. rootfs-$(1)-show-info:
  176. @:
  177. $$(info $$(call clean-json,{ $$(call json-info,ROOTFS_$(2)) }))
  178. rootfs-$(1): $$(BINARIES_DIR)/$$(ROOTFS_$(2)_FINAL_IMAGE_NAME)
  179. .PHONY: rootfs-$(1) rootfs-$(1)-show-depends rootfs-$(1)-show-info
  180. ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
  181. TARGETS_ROOTFS += rootfs-$(1)
  182. PACKAGES += $$(filter-out rootfs-%,$$(ROOTFS_$(2)_FINAL_RECURSIVE_DEPENDENCIES))
  183. endif
  184. # Check for legacy POST_TARGETS rules
  185. ifneq ($$(ROOTFS_$(2)_POST_TARGETS),)
  186. $$(error Filesystem $(1) uses post-target rules, which are no longer supported.\
  187. Update $(1) to use post-gen hooks instead)
  188. endif
  189. endef
  190. # $(pkgname) also works well to return the filesystem name
  191. rootfs = $(call inner-rootfs,$(pkgname),$(call UPPERCASE,$(pkgname)))
  192. include $(sort $(wildcard fs/*/*.mk))