enable PDK to use platform JAVA API

- make platform-java will add necessary Java stuffs from out/target/common/
  to platform.zip
- make platform works as before: no Java libraries
- normal fusion build will pick up the file, and define TARGET_BUILD_PDK_JAVA
  besides TARGET_BUILD_PDK if Java stuffs are included
- For TARGET_BUILD_PDK_JAVA, java.mk does not touch LOCAL_SDK_VERSION, which will lead into
  pulling non-SDK Java APIs

Bug: 6482799

Change-Id: I90b1a0b06dc774150711680a6612f2b97b9eab3f

1 files changed, 66 insertions, 4 deletions

diff --git a/core/pdk_config.mk b/core/pdk_config.mk
index 0949c38..a1f3f72 100644
--- a/core/pdk_config.mk
+++ b/core/pdk_config.mk
@@ -33,6 +33,25 @@ endif
 endif  # fusion
 endif  # pdk or fusion
 
+
+# additional items to add to platform.zip for platform-java build
+# For these dirs, add classes.jar and javalib.jar from the dir to platform.zip
+# all paths under out dir
+PDK_PLATFORM_JAVA_ZIP_JAVA_LIB_DIR := \
+	target/common/obj/JAVA_LIBRARIES/android_stubs_current_intermediates \
+	target/common/obj/JAVA_LIBRARIES/core_intermediates \
+	target/common/obj/JAVA_LIBRARIES/core-junit_intermediates \
+	target/common/obj/JAVA_LIBRARIES/ext_intermediates \
+	target/common/obj/JAVA_LIBRARIES/framework_intermediates \
+	target/common/obj/JAVA_LIBRARIES/android.test.runner_intermediates
+# not java libraries
+PDK_PLATFORM_JAVA_ZIP_CONTENTS := \
+	target/common/obj/APPS/framework-res_intermediates/package-export.apk \
+	target/common/obj/APPS/framework-res_intermediates/src/R.stamp
+PDK_PLATFORM_JAVA_ZIP_CONTENTS += $(foreach lib_dir,$(PDK_PLATFORM_JAVA_ZIP_JAVA_LIB_DIR),\
+    $(lib_dir)/classes.jar $(lib_dir)/javalib.jar)
+
+
 ifdef PDK_FUSION_PLATFORM_ZIP
 TARGET_BUILD_PDK := true
 ifeq (,$(wildcard $(PDK_FUSION_PLATFORM_ZIP)))
@@ -42,17 +61,27 @@ endif
 _pdk_fusion_intermediates := $(call intermediates-dir-for, PACKAGING, pdk_fusion)
 _pdk_fusion_stamp := $(_pdk_fusion_intermediates)/pdk_fusion.stamp
 
+_pdk_fusion_file_list := $(shell unzip -Z -1 $(PDK_FUSION_PLATFORM_ZIP) \
+    '*[^/]' -x 'target/common/*' 2>/dev/null)
+_pdk_fusion_java_file_list := \
+	$(shell unzip -Z -1 $(PDK_FUSION_PLATFORM_ZIP) 'target/common/*' 2>/dev/null)
+_pdk_fusion_files := $(addprefix $(_pdk_fusion_intermediates)/,\
+    $(_pdk_fusion_file_list) $(_pdk_fusion_java_file_list))
+ifneq ($(_pdk_fusion_java_file_list),)
+TARGET_BUILD_PDK_JAVA := true
+endif
+
 $(_pdk_fusion_stamp) : $(PDK_FUSION_PLATFORM_ZIP)
 	@echo "Unzip $(dir $@) <- $<"
 	$(hide) rm -rf $(dir $@) && mkdir -p $(dir $@)
 	$(hide) unzip -qo $< -d $(dir $@)
-	$(hide) touch $@
 	$(call split-long-arguments,touch,$(_pdk_fusion_files))
+	$(hide) touch $@
+
 
-_pdk_fusion_file_list := $(shell unzip -Z -1 $(PDK_FUSION_PLATFORM_ZIP) '*[^/]' 2>/dev/null)
-_pdk_fusion_files := $(addprefix $(_pdk_fusion_intermediates)/, $(_pdk_fusion_file_list))
 $(_pdk_fusion_files) : $(_pdk_fusion_stamp)
 
+
 # Implicit pattern rules to copy the fusion files to the system image directory.
 # Note that if there is already explicit rule in the build system to generate a file,
 # the pattern rule will be just ignored by make.
@@ -62,14 +91,47 @@ $(PRODUCT_OUT)/% : $(_pdk_fusion_intermediates)/% $(_pdk_fusion_stamp)
 	@mkdir -p $(dir $@)
 	$(hide) cp -fpPR $< $@
 
-ALL_PDK_FUSION_FILES := $(addprefix $(PRODUCT_OUT)/, $(_pdk_fusion_file_list))
+ifeq (true,$(TARGET_BUILD_PDK_JAVA))
+
+define JAVA_dependency_template
+$(OUT_DIR)/$(strip $(1)): $(_pdk_fusion_intermediates)/$(strip $(1)) $(OUT_DIR)/$(strip $(2)) \
+  $(_pdk_fusion_stamp)
+	@mkdir -p $$(dir $$@)
+	$(hide) cp -fpPR $$< $$@
+endef
 
+# needs explicit dependency as package-export.apk is not explicitly pulled
+$(eval $(call JAVA_dependency_template,\
+target/common/obj/APPS/framework-res_intermediates/src/R.stamp,\
+target/common/obj/APPS/framework-res_intermediates/package-export.apk))
+
+# javalib.jar should pull classes.jar as classes.jar is not explicitly pulled.
+$(foreach lib_dir,$(PDK_PLATFORM_JAVA_ZIP_JAVA_LIB_DIR),\
+$(eval $(call JAVA_dependency_template,$(lib_dir)/javalib.jar,\
+$(lib_dir)/classes.jar)))
+
+# implicit rules for all others
+$(TARGET_COMMON_OUT_ROOT)/% : $(_pdk_fusion_intermediates)/target/common/% $(_pdk_fusion_stamp)
+	@mkdir -p $(dir $@)
+	$(hide) cp -fpPR $< $@
 endif
 
+ALL_PDK_FUSION_FILES := $(addprefix $(PRODUCT_OUT)/, $(_pdk_fusion_file_list))
+
+endif # PDK_FUSION_PLATFORM_ZIP
+
 ifeq ($(TARGET_BUILD_PDK),true)
 
+ifeq ($(TARGET_BUILD_PDK_JAVA),)
+
 # SDK used for Java build under PDK
 PDK_BUILD_SDK_VERSION := $(lastword $(TARGET_AVAILABLE_SDK_VERSIONS))
 $(info PDK Build uses SDK $(PDK_BUILD_SDK_VERSION))
 
+else # PDK_JAVA
+
+$(info PDK Build uses the current platform API)
+
+endif # PDK_JAVA
+
 endif # BUILD_PDK