1 # Copyright (C) 2007 The Android Open Source Project 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 # 15 16 # Don't bother with the cleanspecs if you are running mm/mmm 17 ifndef ONE_SHOT_MAKEFILE 18 19 INTERNAL_CLEAN_STEPS := 20 21 # Builds up a list of clean steps. Creates a unique 22 # id for each step by taking makefile path, INTERNAL_CLEAN_BUILD_VERSION 23 # and appending an increasing number of '@' characters. 24 # 25 # $(1): shell command to run 26 # $(2): indicate to not use makefile path as part of step id if not empty. 27 # $(2) should only be used in build/core/cleanspec.mk: just for compatibility. 28 define _add-clean-step 29 $(if $(strip $(INTERNAL_CLEAN_BUILD_VERSION)),, \ 30 $(error INTERNAL_CLEAN_BUILD_VERSION not set)) 31 $(eval _acs_makefile_prefix := $(lastword $(MAKEFILE_LIST))) 32 $(eval _acs_makefile_prefix := $(subst /,_,$(_acs_makefile_prefix))) 33 $(eval _acs_makefile_prefix := $(subst .,-,$(_acs_makefile_prefix))) 34 $(eval _acs_makefile_prefix := $(_acs_makefile_prefix)_acs) 35 $(if $($(_acs_makefile_prefix)),,\ 36 $(eval $(_acs_makefile_prefix) := $(INTERNAL_CLEAN_BUILD_VERSION))) 37 $(eval $(_acs_makefile_prefix) := $($(_acs_makefile_prefix))@) 38 $(if $(strip $(2)),$(eval _acs_id := $($(_acs_makefile_prefix))),\ 39 $(eval _acs_id := $(_acs_makefile_prefix)$($(_acs_makefile_prefix)))) 40 $(eval INTERNAL_CLEAN_STEPS += $(_acs_id)) 41 $(eval INTERNAL_CLEAN_STEP.$(_acs_id) := $(1)) 42 $(eval _acs_id :=) 43 $(eval _acs_makefile_prefix :=) 44 endef 45 define add-clean-step 46 $(eval # for build/core/cleanspec.mk, dont use makefile path as part of step id) \ 47 $(if $(filter %/cleanspec.mk,$(lastword $(MAKEFILE_LIST))),\ 48 $(eval $(call _add-clean-step,$(1),true)),\ 49 $(eval $(call _add-clean-step,$(1)))) 50 endef 51 52 # Defines INTERNAL_CLEAN_BUILD_VERSION and the individual clean steps. 53 # cleanspec.mk is outside of the core directory so that more people 54 # can have permission to touch it. 55 include $(BUILD_SYSTEM)/cleanspec.mk 56 INTERNAL_CLEAN_BUILD_VERSION := $(strip $(INTERNAL_CLEAN_BUILD_VERSION)) 57 58 # If the clean_steps.mk file is missing (usually after a clean build) 59 # then we won't do anything. 60 CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION) 61 CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS) 62 63 # Read the current state from the file, if present. 64 # Will set CURRENT_CLEAN_BUILD_VERSION and CURRENT_CLEAN_STEPS. 65 # 66 clean_steps_file := $(PRODUCT_OUT)/clean_steps.mk 67 -include $(clean_steps_file) 68 69 ifneq ($(CURRENT_CLEAN_BUILD_VERSION),$(INTERNAL_CLEAN_BUILD_VERSION)) 70 # The major clean version is out-of-date. Do a full clean, and 71 # don't even bother with the clean steps. 72 $(info *** A clean build is required because of a recent change.) 73 $(shell rm -rf $(OUT_DIR)) 74 $(info *** Done with the cleaning, now starting the real build.) 75 else 76 # The major clean version is correct. Find the list of clean steps 77 # that we need to execute to get up-to-date. 78 steps := \ 79 $(filter-out $(CURRENT_CLEAN_STEPS),$(INTERNAL_CLEAN_STEPS)) 80 $(foreach step,$(steps), \ 81 $(info Clean step: $(INTERNAL_CLEAN_STEP.$(step))) \ 82 $(shell $(INTERNAL_CLEAN_STEP.$(step))) \ 83 ) 84 steps := 85 endif 86 CURRENT_CLEAN_BUILD_VERSION := 87 CURRENT_CLEAN_STEPS := 88 89 # Write the new state to the file. 90 # 91 $(shell \ 92 mkdir -p $(dir $(clean_steps_file)) && \ 93 echo "CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION)" > \ 94 $(clean_steps_file) ;\ 95 echo "CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS)" >> \ 96 $(clean_steps_file) \ 97 ) 98 99 clean_steps_file := 100 INTERNAL_CLEAN_STEPS := 101 INTERNAL_CLEAN_BUILD_VERSION := 102 103 endif # ifndef ONE_SHOT_MAKEFILE 104 105 # Since products and build variants (unfortunately) share the same 106 # PRODUCT_OUT staging directory, things can get out of sync if different 107 # build configurations are built in the same tree. The following logic 108 # will notice when the configuration has changed and remove the files 109 # necessary to keep things consistent. 110 111 previous_build_config_file := $(PRODUCT_OUT)/previous_build_config.mk 112 113 # TODO: this special case for the sdk is only necessary while "sdk" 114 # is a valid make target. Eventually, it will just be a product, at 115 # which point TARGET_PRODUCT will handle it and we can avoid this check 116 # of MAKECMDGOALS. The "addprefix" is just to keep things pretty. 117 ifneq ($(TARGET_PRODUCT),sdk) 118 building_sdk := $(addprefix -,$(filter sdk,$(MAKECMDGOALS))) 119 else 120 # Don't bother with this extra part when explicitly building the sdk product. 121 building_sdk := 122 endif 123 124 # A change in the list of aapt configs warrants an installclean, too. 125 aapt_config_list := $(strip $(PRODUCT_AAPT_CONFIG) $(PRODUCT_AAPT_PREF_CONFIG)) 126 127 current_build_config := \ 128 $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)$(building_sdk)-{$(aapt_config_list)} 129 building_sdk := 130 aapt_config_list := 131 force_installclean := false 132 133 # Read the current state from the file, if present. 134 # Will set PREVIOUS_BUILD_CONFIG. 135 # 136 PREVIOUS_BUILD_CONFIG := 137 -include $(previous_build_config_file) 138 PREVIOUS_BUILD_CONFIG := $(strip $(PREVIOUS_BUILD_CONFIG)) 139 ifdef PREVIOUS_BUILD_CONFIG 140 ifneq "$(current_build_config)" "$(PREVIOUS_BUILD_CONFIG)" 141 $(info *** Build configuration changed: "$(PREVIOUS_BUILD_CONFIG)" -> "$(current_build_config)") 142 ifneq ($(DISABLE_AUTO_INSTALLCLEAN),true) 143 force_installclean := true 144 else 145 $(info DISABLE_AUTO_INSTALLCLEAN is set; skipping auto-clean. Your tree may be in an inconsistent state.) 146 endif 147 endif 148 endif # else, this is the first build, so no need to clean. 149 PREVIOUS_BUILD_CONFIG := 150 151 # Write the new state to the file. 152 # 153 $(shell \ 154 mkdir -p $(dir $(previous_build_config_file)) && \ 155 echo "PREVIOUS_BUILD_CONFIG := $(current_build_config)" > \ 156 $(previous_build_config_file) \ 157 ) 158 previous_build_config_file := 159 current_build_config := 160 161 # 162 # installclean logic 163 # 164 165 # The files/dirs to delete during an installclean. This includes the 166 # non-common APPS directory, which may contain the wrong resources. 167 # 168 # Deletes all of the files that change between different build types, 169 # like "make user" vs. "make sdk". This lets you work with different 170 # build types without having to do a full clean each time. E.g.: 171 # 172 # $ make -j8 all 173 # $ make installclean 174 # $ make -j8 user 175 # $ make installclean 176 # $ make -j8 sdk 177 # 178 installclean_files := \ 179 $(HOST_OUT)/obj/NOTICE_FILES \ 180 $(HOST_OUT)/sdk \ 181 $(PRODUCT_OUT)/*.img \ 182 $(PRODUCT_OUT)/*.txt \ 183 $(PRODUCT_OUT)/*.xlb \ 184 $(PRODUCT_OUT)/*.zip \ 185 $(PRODUCT_OUT)/data \ 186 $(PRODUCT_OUT)/obj/APPS \ 187 $(PRODUCT_OUT)/obj/NOTICE_FILES \ 188 $(PRODUCT_OUT)/obj/PACKAGING \ 189 $(PRODUCT_OUT)/recovery \ 190 $(PRODUCT_OUT)/root \ 191 $(PRODUCT_OUT)/system \ 192 $(PRODUCT_OUT)/dex_bootjars \ 193 $(PRODUCT_OUT)/obj/JAVA_LIBRARIES \ 194 $(PRODUCT_OUT)/obj/FAKE \ 195 $(PRODUCT_OUT)/obj/EXECUTABLES/adbd_intermediates \ 196 $(PRODUCT_OUT)/obj/EXECUTABLES/init_intermediates \ 197 $(PRODUCT_OUT)/obj/ETC/mac_permissions.xml_intermediates \ 198 $(PRODUCT_OUT)/obj/ETC/sepolicy_intermediates 199 200 # The files/dirs to delete during a dataclean, which removes any files 201 # in the staging and emulator data partitions. 202 dataclean_files := \ 203 $(PRODUCT_OUT)/data/* \ 204 $(PRODUCT_OUT)/data-qemu/* \ 205 $(PRODUCT_OUT)/userdata-qemu.img 206 207 # make sure *_OUT is set so that we won't result in deleting random parts 208 # of the filesystem. 209 ifneq (2,$(words $(HOST_OUT) $(PRODUCT_OUT))) 210 $(error both HOST_OUT and PRODUCT_OUT should be set at this point.) 211 endif 212 213 # Define the rules for commandline invocation. 214 .PHONY: dataclean 215 dataclean: FILES := $(dataclean_files) 216 dataclean: 217 $(hide) rm -rf $(FILES) 218 @echo "Deleted emulator userdata images." 219 220 .PHONY: installclean 221 installclean: FILES := $(installclean_files) 222 installclean: dataclean 223 $(hide) rm -rf $(FILES) 224 @echo "Deleted images and staging directories." 225 226 ifeq "$(force_installclean)" "true" 227 $(info *** Forcing "make installclean"...) 228 $(info *** rm -rf $(dataclean_files) $(installclean_files)) 229 $(shell rm -rf $(dataclean_files) $(installclean_files)) 230 $(info *** Done with the cleaning, now starting the real build.) 231 endif 232 force_installclean := 233
