Android Build System详解－－APK Build

build/core/package.mk

LOCAL_BUILT_MODULE_STEM := package.apk

在package.mk中 LOCAL_BUILT_MODULE_STIM定义为package.apk
在base_rules.mk中，对LOCAL_BUILT_MODULE_STIM做如下处理：

LOCAL_MODULE_STEM := $(strip $(LOCAL_MODULE_STEM))LOCAL_BUILT_MODULE := $(built_module_path)/$(LOCAL_BUILT_MODULE_STEM)

在package.mk中LOCAL_BUILT_MODULE会依赖R_file_stamp，而R_file_stamp会依赖resource_export_package，resource_export_package会做的动作有create-empty-package、add-assets-to-package

ifdef LOCAL_EXPORT_PACKAGE_RESOURCES# Put this module's resources into a PRODUCT-agnositc package that# other packages can use to build their own PRODUCT-agnostic R.java (etc.)# files.resource_export_package := $(intermediates.COMMON)/package-export.apk$(R_file_stamp): $(resource_export_package)# add-assets-to-package looks at PRODUCT_AAPT_CONFIG, but this target# can't know anything about PRODUCT.  Clear it out just for this target.$(resource_export_package): PRIVATE_PRODUCT_AAPT_CONFIG :=$(resource_export_package): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=$(resource_export_package): $(all_res_assets) $(full_android_manifest) $(RenderScript_file_stamp) $(AAPT)        @echo "target Export Resources: $(PRIVATE_MODULE) ($@)"        $(create-empty-package)        $(add-assets-to-package)endif# Other modules should depend on the BUILT module if# they want to use this module's R.java file.$(LOCAL_BUILT_MODULE): $(R_file_stamp)

LOCAL_BUILT_MODULE做的动作有create-empty-package、add-assets-to-package、add-jni-shared-libs-to-package、add-dex-to-package、add-carried-java-resources、add-java-resources-to-package、sign-package、align-package。

$(LOCAL_BUILT_MODULE): $(all_res_assets) $(jni_shared_libraries) $(full_android_manifest)             @echo "target Package: $(PRIVATE_MODULE) ($@)"        $(create-empty-package)        $(add-assets-to-package)ifneq ($(jni_shared_libraries),)        $(add-jni-shared-libs-to-package)endififneq ($(full_classes_jar),)        $(add-dex-to-package)endif        $(add-carried-java-resources)ifneq ($(extra_jar_args),)        $(add-java-resources-to-package)endif        $(sign-package)        @# Alignment must happen after all other zip operations.        $(align-package)ifdef LOCAL_DEX_PREOPT        $(hide) rm -f $(patsubst %.apk,%.odex,$@)        $(call dexpreopt-one-file,$@,$(patsubst %.apk,%.odex,$@))ifneq (nostripping,$(LOCAL_DEX_PREOPT))        $(call dexpreopt-remove-classes.dex,$@)endifbuilt_odex := $(basename $(LOCAL_BUILT_MODULE)).odex$(built_odex): $(LOCAL_BUILT_MODULE)endif

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