Collect NOTICE files for apps_only build.

In apps_only build (after running tapas or exporting TARGET_BUILD_APPS),
run "make notice_files" to collect and combine the NOTICE files of
modules that are needed by the apps.

Bug: 10445634
Change-Id: I6555bba1104e43b48c723c82143c46d444a75e80

core/Makefile

@@ -507,6 +507,7 @@ target_notice_file_html_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE.html.gz
 tools_notice_file_txt := $(HOST_OUT_INTERMEDIATES)/NOTICE.txt
 tools_notice_file_html := $(HOST_OUT_INTERMEDIATES)/NOTICE.html
 
+ifndef TARGET_BUILD_APPS
 kernel_notice_file := $(TARGET_OUT_NOTICE_FILES)/src/kernel.txt
 pdk_fusion_notice_files := $(filter $(TARGET_OUT_NOTICE_FILES)/%, $(ALL_PDK_FUSION_FILES))
 
@@ -539,6 +540,7 @@ $(installed_notice_html_gz): $(target_notice_file_html_gz) | $(ACP)
 ifeq ($(ONE_SHOT_MAKEFILE),)
 ALL_DEFAULT_INSTALLED_MODULES += $(installed_notice_html_gz)
 endif
+endif  # TARGET_BUILD_APPS
 
 # The kernel isn't really a module, so to get its module file in there, we
 # make the target NOTICE files depend on this particular file too, which will

core/main.mk

@@ -836,6 +836,15 @@ apps_only: $(unbundled_build_modules)
 
 droid: apps_only
 
+# Combine the NOTICE files for a apps_only build
+$(eval $(call combine-notice-files, \
+    $(target_notice_file_txt), \
+    $(target_notice_file_html), \
+    "Notices for files for apps:", \
+    $(TARGET_OUT_NOTICE_FILES), \
+    $(apps_only_installed_files)))
+
+
 else # TARGET_BUILD_APPS
   $(call dist-for-goals, droidcore, \
     $(INTERNAL_UPDATE_PACKAGE_TARGET) \

core/notice_files.mk

@@ -73,6 +73,19 @@ ifdef LOCAL_INSTALLED_MODULE
 $(LOCAL_INSTALLED_MODULE): | $(installed_notice_file)
 endif
 
+# To facilitate collecting NOTICE files for apps_only build,
+# we install the NOTICE file even if a module gets built but not installed,
+# because shared jni libraries won't be installed to the system image.
+ifdef TARGET_BUILD_APPS
+# for static Java libraries, we don't need to even build LOCAL_BUILT_MODULE,
+# but just javalib.jar in the common intermediate dir.
+ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
+$(intermediates.COMMON)/javalib.jar : | $(installed_notice_file)
+else
+$(LOCAL_BUILT_MODULE): | $(installed_notice_file)
+endif  # JAVA_LIBRARIES
+endif  # TARGET_BUILD_APPS
+
 else
 # NOTICE file does not exist
 installed_notice_file :=