Inform Jack of the min sdk

Set Jack min sdk according to LOCAL_SDK_VERSION. Gives Jack current
version when LOCAL_SDK_VERSION is not available.

Bug: 27371864
Change-Id: Ieba0219494f29d2737d2ca234317c3af7e5e72c8

core/config.mk

@@ -827,6 +827,7 @@ TARGET_AVAILABLE_SDK_VERSIONS := $(call numerically_sort,\
 
 # We don't have prebuilt system_current SDK yet.
 TARGET_AVAILABLE_SDK_VERSIONS := $(TARGET_AVAILABLE_SDK_VERSIONS)
+$(info PLATFORM_JACK_MIN_SDK_VERSION = $(PLATFORM_JACK_MIN_SDK_VERSION))
 
 INTERNAL_PLATFORM_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/public_api.txt
 INTERNAL_PLATFORM_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/removed.txt

core/definitions.mk

@@ -1986,6 +1986,7 @@ $(call call-jack) \
         $(call normalize-path-list,$(PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES) $(PRIVATE_ALL_JACK_LIBRARIES)))) \
     $(addprefix --import ,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES))) \
     $(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 \
     -D jack.import.type.policy=keep-first \
     --output-jack $(PRIVATE_CLASSES_JACK) \
@@ -2029,6 +2030,7 @@ $(hide) if [ -s $@.java-source-list-uniq ] ; then \
 	    $(addprefix --classpath ,$(strip \
 	        $(call normalize-path-list,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES)) $(PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES) $(PRIVATE_ALL_JACK_LIBRARIES)))) \
 	    -D jack.import.resource.policy=keep-first \
+	    -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
 	    -D jack.import.type.policy=keep-first \
 	    $(if $(PRIVATE_JACK_INCREMENTAL_DIR),--incremental-folder $(PRIVATE_JACK_INCREMENTAL_DIR)) \
 	    @$@.java-source-list-uniq; \
@@ -2045,6 +2047,7 @@ define transform-jar-to-jack
 	    $(PRIVATE_JACK_FLAGS) \
         -D jack.import.resource.policy=keep-first \
         -D jack.import.type.policy=keep-first \
+        -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
 	    --import $< \
 	    --import-resource $@.tmpjill.res \
 	    --output-jack $@
@@ -2152,6 +2155,7 @@ $(call call-jack) \
     $(if $(PRIVATE_EXTRA_JAR_ARGS),--import-resource $@.res.tmp) \
     -D jack.import.resource.policy=keep-first \
     -D jack.import.type.policy=keep-first \
+    -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
     $(if $(PRIVATE_JACK_INCREMENTAL_DIR),--incremental-folder $(PRIVATE_JACK_INCREMENTAL_DIR)) \
     --output-jack $@ \
     $(addprefix --config-jarjar ,$(strip $(PRIVATE_JARJAR_RULES))) \

core/host_dalvik_java_library.mk

@@ -128,6 +128,7 @@ $(LOCAL_INTERMEDIATE_TARGETS): \
 endif
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_MIN_SDK_VERSION := $(PLATFORM_JACK_MIN_SDK_VERSION)
 
 jack_all_deps := $(java_sources) $(java_resource_sources) $(full_jack_deps) \
         $(jar_manifest_file) $(proto_java_sources_file_stamp) \

core/host_dalvik_static_java_library.mk

@@ -37,6 +37,7 @@ include $(BUILD_SYSTEM)/host_java_library.mk
 # *.proto files are not supported
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_MIN_SDK_VERSION := $(PLATFORM_JACK_MIN_SDK_VERSION)
 
 $(full_classes_jack): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
 $(full_classes_jack): \

core/java.mk

@@ -29,14 +29,18 @@ ifneq ($(LOCAL_SDK_VERSION),)
       ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),current)
         # Use android_stubs_current if LOCAL_SDK_VERSION is current and no TARGET_BUILD_APPS.
         LOCAL_JAVA_LIBRARIES := android_stubs_current $(LOCAL_JAVA_LIBRARIES)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
       else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
         LOCAL_JAVA_LIBRARIES := android_system_stubs_current $(LOCAL_JAVA_LIBRARIES)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
       else
         LOCAL_JAVA_LIBRARIES := sdk_v$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
+        my_jack_min_sdk_version := $(LOCAL_SDK_VERSION)
       endif
     endif
   endif
 else
+  my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
   ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
     LOCAL_JAVA_LIBRARIES := $(TARGET_DEFAULT_JAVA_LIBRARIES) $(LOCAL_JAVA_LIBRARIES)
   endif
@@ -371,6 +375,9 @@ $(error $(LOCAL_PATH): Target java module does not define any source or resource
 endif
 endif
 
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_MIN_SDK_VERSION := $(my_jack_min_sdk_version)
+my_jack_min_sdk_version :=
+
 # Since we're using intermediates.COMMON, make sure that it gets cleaned
 # properly.
 $(cleantarget): PRIVATE_CLEAN_FILES += $(intermediates.COMMON)

core/prebuilt_internal.mk

@@ -339,6 +339,7 @@ endif
 
 # 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 := 1
 $(intermediates.COMMON)/classes.jack : $(my_src_jar) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK) | setup-jack-server
 	$(transform-jar-to-jack)

core/version_defaults.mk

@@ -58,6 +58,15 @@ ifeq "" "$(PLATFORM_SDK_VERSION)"
   PLATFORM_SDK_VERSION := 23
 endif
 
+ifeq "" "$(PLATFORM_JACK_MIN_SDK_VERSION)"
+  # This is definition of the min SDK version given to Jack for the current
+  # platform. For released version it should be the same as
+  # PLATFORM_SDK_VERSION. During development, this number may be incremented
+  # before PLATFORM_SDK_VERSION if the plateform starts to add new java
+  # language supports.
+  PLATFORM_JACK_MIN_SDK_VERSION := 24
+endif
+
 ifeq "" "$(PLATFORM_VERSION_CODENAME)"
   # This is the current development code-name, if the build is not a final
   # release build.  If this is a final release build, it is simply "REL".