commit b17f2851697e1cc81ef7c21052770404fdd7ac74
author Colin Cross <ccross@android.com> Thu Apr 27 13:34:02 2017 -0700
committer Colin Cross <ccross@android.com> Fri Apr 28 13:39:12 2017 -0700
tree 3476551e608eec005546ca617e3018c74d8f4f28
parent 7928afb83d6439fee7439fc081d816a3ddb572b0

Support LOCAL_JACK_ENABLED := javac_frontend

Allow working around Jack bugs by using javac to compile *.java
to class files, and then pass through Jack for desugaring,
proguarding, and dexing.

Also make ANDROID_COMPILE_WITH_JACK=false override LOCAL_JACK_ENABLED.

Bug: 37483961
Test: m -j checkbuild
Test: Add LOCAL_JACK_ENABLED := javac_frontend to a target
Change-Id: I2189055aac9deccc36b8eab8e949796dddadf7a1

core/configure_local_jack.mk

diff --git a/core/configure_local_jack.mk b/core/configure_local_jack.mk
index 2270c88..f8049a3 100644
--- a/core/configure_local_jack.mk
+++ b/core/configure_local_jack.mk
@@ -18,18 +18,23 @@
 LOCAL_JACK_ENABLED := $(ANDROID_FORCE_JACK_ENABLED)
 endif
 
+ifneq ($(ANDROID_COMPILE_WITH_JACK),true)
+LOCAL_JACK_ENABLED :=
+endif
+
 LOCAL_JACK_ENABLED := $(strip $(LOCAL_JACK_ENABLED))
 LOCAL_MODULE := $(strip $(LOCAL_MODULE))
 
-ifneq ($(LOCAL_JACK_ENABLED),full)
-ifneq ($(LOCAL_JACK_ENABLED),incremental)
+valid_jack_enabled_values := full incremental javac_frontend disabled
+
 ifdef LOCAL_JACK_ENABLED
-ifneq ($(LOCAL_JACK_ENABLED),disabled)
-$(error $(LOCAL_PATH): invalid LOCAL_JACK_ENABLED "$(LOCAL_JACK_ENABLED)" for $(LOCAL_MODULE))
-endif
-endif
-LOCAL_JACK_ENABLED :=
-endif
+  ifneq ($(LOCAL_JACK_ENABLED),$(filter $(firstword $(LOCAL_JACK_ENABLED)),$(valid_jack_enabled_values)))
+    $(error $(LOCAL_PATH): invalid LOCAL_JACK_ENABLED "$(LOCAL_JACK_ENABLED)" for $(LOCAL_MODULE))
+  endif
+
+  ifeq ($(LOCAL_JACK_ENABLED),disabled)
+    LOCAL_JACK_ENABLED :=
+  endif
 endif
 
 ifdef $(LOCAL_MODULE).JACK_VERSION