207 lines
7.0 KiB
Makefile
207 lines
7.0 KiB
Makefile
# Copyright (C) 2007 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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INTERNAL_CLEAN_STEPS :=
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# Builds up a list of clean steps. Creates a unique
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# id for each step by taking INTERNAL_CLEAN_BUILD_VERSION
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# and appending an increasing number of '@' characters.
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#
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# $(1): shell command to run
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define _add-clean-step
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$(if $(strip $(INTERNAL_CLEAN_BUILD_VERSION)),, \
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$(error INTERNAL_CLEAN_BUILD_VERSION not set))
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$(eval _acs_id := $(strip $(lastword $(INTERNAL_CLEAN_STEPS))))
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$(if $(_acs_id),,$(eval _acs_id := $(INTERNAL_CLEAN_BUILD_VERSION)))
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$(eval _acs_id := $(_acs_id)@)
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$(eval INTERNAL_CLEAN_STEPS += $(_acs_id))
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$(eval INTERNAL_CLEAN_STEP.$(_acs_id) := $(1))
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$(eval _acs_id :=)
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endef
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define add-clean-step
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$(if $(call _add-clean-step,$(1)),)
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endef
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# Defines INTERNAL_CLEAN_BUILD_VERSION and the individual clean steps.
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# cleanspec.mk is outside of the core directory so that more people
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# can have permission to touch it.
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include build/cleanspec.mk
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INTERNAL_CLEAN_BUILD_VERSION := $(strip $(INTERNAL_CLEAN_BUILD_VERSION))
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# If the clean_steps.mk file is missing (usually after a clean build)
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# then we won't do anything.
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CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION)
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CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS)
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# Read the current state from the file, if present.
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# Will set CURRENT_CLEAN_BUILD_VERSION and CURRENT_CLEAN_STEPS.
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#
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clean_steps_file := $(PRODUCT_OUT)/clean_steps.mk
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-include $(clean_steps_file)
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ifneq ($(CURRENT_CLEAN_BUILD_VERSION),$(INTERNAL_CLEAN_BUILD_VERSION))
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# The major clean version is out-of-date. Do a full clean, and
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# don't even bother with the clean steps.
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$(info *** A clean build is required because of a recent change.)
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$(shell rm -rf $(OUT_DIR))
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$(info *** Done with the cleaning, now starting the real build.)
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else
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# The major clean version is correct. Find the list of clean steps
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# that we need to execute to get up-to-date.
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steps := \
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$(filter-out $(CURRENT_CLEAN_STEPS),$(INTERNAL_CLEAN_STEPS))
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$(foreach step,$(steps), \
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$(info Clean step: $(INTERNAL_CLEAN_STEP.$(step))) \
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$(shell $(INTERNAL_CLEAN_STEP.$(step))) \
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)
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steps :=
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endif
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CURRENT_CLEAN_BUILD_VERSION :=
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CURRENT_CLEAN_STEPS :=
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# Write the new state to the file.
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#
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$(shell \
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mkdir -p $(dir $(clean_steps_file)) && \
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echo "CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION)" > \
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$(clean_steps_file) ;\
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echo "CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS)" >> \
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$(clean_steps_file) \
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)
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clean_steps_file :=
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INTERNAL_CLEAN_STEPS :=
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INTERNAL_CLEAN_BUILD_VERSION :=
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# Since products and build variants (unfortunately) share the same
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# PRODUCT_OUT staging directory, things can get out of sync if different
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# build configurations are built in the same tree. The following logic
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# will notice when the configuration has changed and remove the files
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# necessary to keep things consistent.
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previous_build_config_file := $(PRODUCT_OUT)/previous_build_config.mk
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# TODO: this special case for the sdk is only necessary while "sdk"
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# is a valid make target. Eventually, it will just be a product, at
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# which point TARGET_PRODUCT will handle it and we can avoid this check
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# of MAKECMDGOALS. The "addprefix" is just to keep things pretty.
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ifneq ($(TARGET_PRODUCT),sdk)
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building_sdk := $(addprefix -,$(filter sdk,$(MAKECMDGOALS)))
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else
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# Don't bother with this extra part when explicitly building the sdk product.
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building_sdk :=
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endif
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# A change in the list of locales warrants an installclean, too.
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locale_list := $(subst $(space),$(comma),$(strip $(PRODUCT_LOCALES)))
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current_build_config := \
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$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)$(building_sdk)-{$(locale_list)}
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building_sdk :=
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locale_list :=
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force_installclean := false
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# Read the current state from the file, if present.
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# Will set PREVIOUS_BUILD_CONFIG.
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#
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PREVIOUS_BUILD_CONFIG :=
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-include $(previous_build_config_file)
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PREVIOUS_BUILD_CONFIG := $(strip $(PREVIOUS_BUILD_CONFIG))
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ifdef PREVIOUS_BUILD_CONFIG
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ifneq "$(current_build_config)" "$(PREVIOUS_BUILD_CONFIG)"
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$(info *** Build configuration changed: "$(PREVIOUS_BUILD_CONFIG)" -> "$(current_build_config)")
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ifneq ($(DISABLE_AUTO_INSTALLCLEAN),true)
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force_installclean := true
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else
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$(info DISABLE_AUTO_INSTALLCLEAN is set; skipping auto-clean. Your tree may be in an inconsistent state.)
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endif
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endif
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endif # else, this is the first build, so no need to clean.
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PREVIOUS_BUILD_CONFIG :=
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# Write the new state to the file.
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#
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$(shell \
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mkdir -p $(dir $(previous_build_config_file)) && \
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echo "PREVIOUS_BUILD_CONFIG := $(current_build_config)" > \
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$(previous_build_config_file) \
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)
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previous_build_config_file :=
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current_build_config :=
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#
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# installclean logic
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#
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# The files/dirs to delete during an installclean. This includes the
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# non-common APPS directory, which may contain the wrong resources.
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# Use "./" in front of the paths to avoid accidentally deleting random
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# parts of the filesystem if any of the *_OUT vars resolve to blank.
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#
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# Deletes all of the files that change between different build types,
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# like "make user" vs. "make sdk". This lets you work with different
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# build types without having to do a full clean each time. E.g.:
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#
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# $ make -j8 all
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# $ make installclean
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# $ make -j8 user
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# $ make installclean
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# $ make -j8 sdk
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#
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installclean_files := \
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./$(HOST_OUT)/obj/NOTICE_FILES \
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./$(HOST_OUT)/sdk \
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./$(PRODUCT_OUT)/*.img \
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./$(PRODUCT_OUT)/*.txt \
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./$(PRODUCT_OUT)/*.xlb \
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./$(PRODUCT_OUT)/*.zip \
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./$(PRODUCT_OUT)/data \
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./$(PRODUCT_OUT)/obj/lib \
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./$(PRODUCT_OUT)/obj/APPS \
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./$(PRODUCT_OUT)/obj/NOTICE_FILES \
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./$(PRODUCT_OUT)/obj/PACKAGING \
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./$(PRODUCT_OUT)/recovery \
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./$(PRODUCT_OUT)/root \
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./$(PRODUCT_OUT)/symbols/system/lib \
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./$(PRODUCT_OUT)/system
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# The files/dirs to delete during a dataclean, which removes any files
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# in the staging and emulator data partitions.
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dataclean_files := \
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./$(PRODUCT_OUT)/data/* \
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./$(PRODUCT_OUT)/data-qemu/* \
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./$(PRODUCT_OUT)/userdata-qemu.img
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# Define the rules for commandline invocation.
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.PHONY: dataclean
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dataclean: FILES := $(dataclean_files)
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dataclean:
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$(hide) rm -rf $(FILES)
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@echo "Deleted emulator userdata images."
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.PHONY: installclean
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installclean: FILES := $(installclean_files)
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installclean: dataclean
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$(hide) rm -rf $(FILES)
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@echo "Deleted images and staging directories."
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ifeq "$(force_installclean)" "true"
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$(info *** Forcing "make installclean"...)
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$(shell rm -rf $(dataclean_files) $(installclean_files))
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$(info *** Done with the cleaning, now starting the real build.)
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endif
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force_installclean :=
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