Add support for Jack plugin

And ensure compatibility with coverage plugin.

(cherry picked from commit 862bb84d37e3e6ca61080de58f206e512e09d4e0)

Bug: 28876950
Test: Manually tested by some manual activations of the coverage plugin.
Change-Id: I804558a501825357bf0812de626d2957eedbdc13
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 5f7a705..4f0c839 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -76,6 +76,8 @@
 LOCAL_NO_STANDARD_LIBRARIES:=
 LOCAL_CLASSPATH:=
 LOCAL_JACK_CLASSPATH:=
+LOCAL_JACK_PLUGIN_PATH:=
+LOCAL_JACK_PLUGIN:=
 LOCAL_DROIDDOC_USE_STANDARD_DOCLET:=
 LOCAL_DROIDDOC_SOURCE_PATH:=
 LOCAL_DROIDDOC_TEMPLATE_DIR:=
diff --git a/core/definitions.mk b/core/definitions.mk
index 29b6539..b8e57be 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -749,6 +749,13 @@
 endef
 
 ###########################################################
+## Convert "a b c" into "a,b,c"
+###########################################################
+define normalize-comma-list
+$(subst $(space),$(comma),$(strip $(1)))
+endef
+
+###########################################################
 ## Read the word out of a colon-separated list of words.
 ## This has the same behavior as the built-in function
 ## $(word n,str).
@@ -2325,6 +2332,9 @@
     $(addprefix --classpath ,$(strip \
         $(call normalize-path-list,$(PRIVATE_JACK_SHARED_LIBRARIES)))) \
     $(addprefix --import ,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES))) \
+    $(addprefix --pluginpath ,$(strip \
+         $(call normalize-path-list,$(PRIVATE_JACK_PLUGIN_PATH)))) \
+    $(if $(PRIVATE_JACK_PLUGIN),--plugin $(call normalize-comma-list,$(PRIVATE_JACK_PLUGIN))) \
     $(if $(PRIVATE_EXTRA_JAR_ARGS),--import-resource $@.res.tmp) \
     -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
     -D jack.import.resource.policy=keep-first \
@@ -2384,6 +2394,9 @@
 	$(hide) find $@.tmpjill.res -iname "*.class" -delete
 	$(hide) $(call call-jack) \
 	    $(PRIVATE_JACK_FLAGS) \
+	    $(addprefix --pluginpath ,$(strip \
+                $(call normalize-path-list,$(PRIVATE_JACK_PLUGIN_PATH)))) \
+	    $(if $(PRIVATE_JACK_PLUGIN),--plugin $(call normalize-comma-list,$(PRIVATE_JACK_PLUGIN))) \
         -D jack.import.resource.policy=keep-first \
         -D jack.import.type.policy=keep-first \
         -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
@@ -2491,6 +2504,9 @@
     $(addprefix --classpath ,$(strip \
         $(call normalize-path-list,$(PRIVATE_JACK_SHARED_LIBRARIES)))) \
     $(addprefix --import ,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES))) \
+    $(addprefix --pluginpath ,$(strip \
+        $(call normalize-path-list,$(PRIVATE_JACK_PLUGIN_PATH)))) \
+    $(if $(PRIVATE_JACK_PLUGIN),--plugin $(call normalize-comma-list,$(PRIVATE_JACK_PLUGIN))) \
     $(if $(PRIVATE_EXTRA_JAR_ARGS),--import-resource $@.res.tmp) \
     -D jack.import.resource.policy=keep-first \
     -D jack.import.type.policy=keep-first \
diff --git a/core/host_dalvik_java_library.mk b/core/host_dalvik_java_library.mk
index cee3cc4..a3dff85 100644
--- a/core/host_dalvik_java_library.mk
+++ b/core/host_dalvik_java_library.mk
@@ -85,7 +85,9 @@
 
 ifneq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
 $(built_dex): PRIVATE_CLASSES_JACK := $(full_classes_jack)
-$(built_dex): $(jack_all_deps) | setup-jack-server
+$(built_dex): PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
+$(built_dex): PRIVATE_JACK_PLUGIN := $(JACK_PLUGIN)
+$(built_dex): $(jack_all_deps) $(LOCAL_JACK_PLUGIN_PATH) | setup-jack-server
 	@echo Building with Jack: $@
 	$(jack-java-to-dex)
 
@@ -103,7 +105,9 @@
 	$(add-carried-jack-resources)
 
 else  # LOCAL_IS_STATIC_JAVA_LIBRARY
-$(full_classes_jack): $(jack_all_deps) | setup-jack-server
+$(full_classes_jack): PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
+$(full_classes_jack): PRIVATE_JACK_PLUGIN := $(JACK_PLUGIN)
+$(full_classes_jack): $(jack_all_deps) $(LOCAL_JACK_PLUGIN_PATH) | setup-jack-server
 	@echo Building with Jack: $@
 	$(java-to-jack)
 
diff --git a/core/java.mk b/core/java.mk
index 606b474..b74c37d 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -635,7 +635,9 @@
 	$(jack-check-java)
 
 ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
-$(full_classes_jack): $(jack_all_deps) | setup-jack-server
+$(full_classes_jack): PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
+$(full_classes_jack): PRIVATE_JACK_PLUGIN := $(JACK_PLUGIN)
+$(full_classes_jack): $(jack_all_deps) $(LOCAL_JACK_PLUGIN_PATH) | setup-jack-server
 	@echo Building with Jack: $@
 	$(java-to-jack)
 
@@ -648,6 +650,8 @@
 $(built_dex_intermediate): PRIVATE_CLASSES_JACK := $(full_classes_jack)
 
 ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
+LOCAL_JACK_PLUGIN_PATH += $(HOST_OUT_JAVA_LIBRARIES)/jack-coverage-plugin.jar
+LOCAL_JACK_PLUGIN += com.android.jack.coverage.CodeCoverage
 $(built_dex_intermediate): PRIVATE_JACK_COVERAGE_OPTIONS := \
     -D jack.coverage=true \
     -D jack.coverage.metadata.file=$(intermediates.COMMON)/coverage.em \
@@ -658,7 +662,9 @@
 $(built_dex_intermediate): PRIVATE_JACK_COVERAGE_OPTIONS :=
 endif
 
-$(built_dex_intermediate): $(jack_all_deps) | setup-jack-server
+$(built_dex_intermediate): PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
+$(built_dex_intermediate): PRIVATE_JACK_PLUGIN := $(LOCAL_JACK_PLUGIN)
+$(built_dex_intermediate): $(jack_all_deps) $(LOCAL_JACK_PLUGIN_PATH) | setup-jack-server
 	@echo Building with Jack: $@
 	$(jack-java-to-dex)
 
@@ -672,9 +678,11 @@
 
 endif #LOCAL_IS_STATIC_JAVA_LIBRARY
 
+$(noshrob_classes_jack): PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
+$(noshrob_classes_jack): PRIVATE_JACK_PLUGIN := $(JACK_PLUGIN)
 $(noshrob_classes_jack): PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-noshrob-rsc
 $(noshrob_classes_jack): PRIVATE_JACK_PROGUARD_FLAGS :=
-$(noshrob_classes_jack): $(jack_all_deps) | setup-jack-server
+$(noshrob_classes_jack): $(jack_all_deps) $(LOCAL_JACK_PLUGIN_PATH) | setup-jack-server
 	@echo Building with Jack: $@
 	$(java-to-jack)
 endif  # full_classes_jar is defined
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index c3cc807..4095ab7 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -480,7 +480,9 @@
 # We may be building classes.jack from a host jar for host dalvik Java library.
 $(intermediates.COMMON)/classes.jack : PRIVATE_JACK_FLAGS:=$(LOCAL_JACK_FLAGS)
 $(intermediates.COMMON)/classes.jack : PRIVATE_JACK_MIN_SDK_VERSION := $(if $(strip $(LOCAL_MIN_SDK_VERSION)),$(LOCAL_MIN_SDK_VERSION),1)
-$(intermediates.COMMON)/classes.jack : $(my_src_jar) \
+$(intermediates.COMMON)/classes.jack : PRIVATE_JACK_PLUGIN_PATH := $(LOCAL_JACK_PLUGIN_PATH)
+$(intermediates.COMMON)/classes.jack : PRIVATE_JACK_PLUGIN := $(JACK_PLUGIN)
+$(intermediates.COMMON)/classes.jack : $(LOCAL_JACK_PLUGIN_PATH) $(my_src_jar) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK_DEFAULT_ARGS) $(JACK) \
         | setup-jack-server
 	$(transform-jar-to-jack)