common.mk 5.2 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 $$@.
  10. #
  11. # The following variables can optionaly be defined
  12. #
  13. # ROOTFS_$(FSTYPE)_DEPENDENCIES, the list of dependencies needed to
  14. # build the root filesystem (usually host tools)
  15. #
  16. # ROOTFS_$(FSTYPE)_PRE_GEN_HOOKS, a list of hooks to call before
  17. # generating the filesystem image
  18. #
  19. # ROOTFS_$(FSTYPE)_POST_GEN_HOOKS, a list of hooks to call after
  20. # generating the filesystem image
  21. #
  22. # ROOTFS_$(FSTYPE)_POST_TARGETS, the list of targets that should be
  23. # run after running the main filesystem target. This is useful for
  24. # initramfs, to rebuild the kernel once the initramfs is generated.
  25. #
  26. # In terms of configuration option, this macro assumes that the
  27. # BR2_TARGET_ROOTFS_$(FSTYPE) config option allows to enable/disable
  28. # the generation of a filesystem image of a particular type. If
  29. # the configuration options BR2_TARGET_ROOTFS_$(FSTYPE)_GZIP,
  30. # BR2_TARGET_ROOTFS_$(FSTYPE)_BZIP2 or
  31. # BR2_TARGET_ROOTFS_$(FSTYPE)_LZMA exist and are enabled, then the
  32. # macro will automatically generate a compressed filesystem image.
  33. FAKEROOT_SCRIPT = $(BUILD_DIR)/_fakeroot.fs
  34. FULL_DEVICE_TABLE = $(BUILD_DIR)/_device_table.txt
  35. ROOTFS_DEVICE_TABLES = $(call qstrip,$(BR2_ROOTFS_DEVICE_TABLE) \
  36. $(BR2_ROOTFS_STATIC_DEVICE_TABLE))
  37. USERS_TABLE = $(BUILD_DIR)/_users_table.txt
  38. ROOTFS_USERS_TABLES = $(call qstrip,$(BR2_ROOTFS_USERS_TABLES))
  39. # Since this function will be called from within an $(eval ...)
  40. # all variable references except the arguments must be $$-quoted.
  41. define ROOTFS_TARGET_INTERNAL
  42. # extra deps
  43. ROOTFS_$(2)_DEPENDENCIES += host-fakeroot host-makedevs \
  44. $$(if $$(PACKAGES_USERS)$$(ROOTFS_USERS_TABLES),host-mkpasswd)
  45. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_GZIP),y)
  46. ROOTFS_$(2)_COMPRESS_EXT = .gz
  47. ROOTFS_$(2)_COMPRESS_CMD = gzip -9 -c
  48. endif
  49. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_BZIP2),y)
  50. ROOTFS_$(2)_COMPRESS_EXT = .bz2
  51. ROOTFS_$(2)_COMPRESS_CMD = bzip2 -9 -c
  52. endif
  53. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
  54. ROOTFS_$(2)_DEPENDENCIES += host-lzma
  55. ROOTFS_$(2)_COMPRESS_EXT = .lzma
  56. ROOTFS_$(2)_COMPRESS_CMD = $$(LZMA) -9 -c
  57. endif
  58. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZO),y)
  59. ROOTFS_$(2)_DEPENDENCIES += host-lzop
  60. ROOTFS_$(2)_COMPRESS_EXT = .lzo
  61. ROOTFS_$(2)_COMPRESS_CMD = $$(LZOP) -9 -c
  62. endif
  63. ifeq ($$(BR2_TARGET_ROOTFS_$(2)_XZ),y)
  64. ROOTFS_$(2)_DEPENDENCIES += host-xz
  65. ROOTFS_$(2)_COMPRESS_EXT = .xz
  66. ROOTFS_$(2)_COMPRESS_CMD = xz -9 -C crc32 -c
  67. endif
  68. $$(BINARIES_DIR)/rootfs.$(1): target-finalize $$(ROOTFS_$(2)_DEPENDENCIES)
  69. @$$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
  70. $$(foreach hook,$$(ROOTFS_$(2)_PRE_GEN_HOOKS),$$(call $$(hook))$$(sep))
  71. rm -f $$(FAKEROOT_SCRIPT)
  72. rm -f $$(TARGET_DIR_WARNING_FILE)
  73. rm -f $$(USERS_TABLE)
  74. echo '#!/bin/sh' > $$(FAKEROOT_SCRIPT)
  75. echo "set -e" >> $$(FAKEROOT_SCRIPT)
  76. echo "chown -h -R 0:0 $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
  77. ifneq ($$(ROOTFS_USERS_TABLES),)
  78. cat $$(ROOTFS_USERS_TABLES) >> $$(USERS_TABLE)
  79. endif
  80. $$(call PRINTF,$$(PACKAGES_USERS)) >> $$(USERS_TABLE)
  81. PATH=$$(BR_PATH) $$(TOPDIR)/support/scripts/mkusers $$(USERS_TABLE) $$(TARGET_DIR) >> $$(FAKEROOT_SCRIPT)
  82. ifneq ($$(ROOTFS_DEVICE_TABLES),)
  83. cat $$(ROOTFS_DEVICE_TABLES) > $$(FULL_DEVICE_TABLE)
  84. ifeq ($$(BR2_ROOTFS_DEVICE_CREATION_STATIC),y)
  85. $$(call PRINTF,$$(PACKAGES_DEVICES_TABLE)) >> $$(FULL_DEVICE_TABLE)
  86. endif
  87. endif
  88. $$(call PRINTF,$$(PACKAGES_PERMISSIONS_TABLE)) >> $$(FULL_DEVICE_TABLE)
  89. echo "$$(HOST_DIR)/bin/makedevs -d $$(FULL_DEVICE_TABLE) $$(TARGET_DIR)" >> $$(FAKEROOT_SCRIPT)
  90. $$(foreach s,$$(call qstrip,$$(BR2_ROOTFS_POST_FAKEROOT_SCRIPT)),\
  91. echo "echo '$$(TERM_BOLD)>>> Executing fakeroot script $$(s)$$(TERM_RESET)'" >> $$(FAKEROOT_SCRIPT); \
  92. echo $$(s) $$(TARGET_DIR) $$(BR2_ROOTFS_POST_SCRIPT_ARGS) >> $$(FAKEROOT_SCRIPT)$$(sep))
  93. $$(foreach hook,$$(ROOTFS_PRE_CMD_HOOKS),\
  94. $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
  95. ifeq ($$(BR2_REPRODUCIBLE),y)
  96. echo "find $$(TARGET_DIR) -print0 | xargs -0 -r touch -hd @$$(SOURCE_DATE_EPOCH)" >> $$(FAKEROOT_SCRIPT)
  97. endif
  98. $$(call PRINTF,$$(ROOTFS_$(2)_CMD)) >> $$(FAKEROOT_SCRIPT)
  99. $$(foreach hook,$$(ROOTFS_POST_CMD_HOOKS),\
  100. $$(call PRINTF,$$($$(hook))) >> $$(FAKEROOT_SCRIPT)$$(sep))
  101. chmod a+x $$(FAKEROOT_SCRIPT)
  102. PATH=$$(BR_PATH) $$(HOST_DIR)/bin/fakeroot -- $$(FAKEROOT_SCRIPT)
  103. $$(INSTALL) -m 0644 support/misc/target-dir-warning.txt $$(TARGET_DIR_WARNING_FILE)
  104. -@rm -f $$(FAKEROOT_SCRIPT) $$(FULL_DEVICE_TABLE)
  105. ifneq ($$(ROOTFS_$(2)_COMPRESS_CMD),)
  106. PATH=$$(BR_PATH) $$(ROOTFS_$(2)_COMPRESS_CMD) $$@ > $$@$$(ROOTFS_$(2)_COMPRESS_EXT)
  107. endif
  108. $$(foreach hook,$$(ROOTFS_$(2)_POST_GEN_HOOKS),$$(call $$(hook))$$(sep))
  109. rootfs-$(1)-show-depends:
  110. @echo $$(ROOTFS_$(2)_DEPENDENCIES)
  111. rootfs-$(1): $$(BINARIES_DIR)/rootfs.$(1) $$(ROOTFS_$(2)_POST_TARGETS)
  112. .PHONY: rootfs-$(1) rootfs-$(1)-show-depends
  113. ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
  114. TARGETS_ROOTFS += rootfs-$(1)
  115. PACKAGES += $$(filter-out rootfs-%,$$(ROOTFS_$(2)_DEPENDENCIES))
  116. endif
  117. endef
  118. define ROOTFS_TARGET
  119. $(call ROOTFS_TARGET_INTERNAL,$(1),$(call UPPERCASE,$(1)))
  120. endef
  121. include $(sort $(wildcard fs/*/*.mk))