Enable mainline prebuilts on tm-dev branch.
Except for santizer and framework Java coverage tests as they require
specialized prebuilts built from a matching configuration and we do not
provide them.
Bug: 230478310
Bug: 223592962
Test: presubmit
Merged-In: I3ed091156c4b39dad6eaf578144ac3d070025988
Merged-In: I9731400acfade95b3eab8f2d99fddb4cf856aa91
Change-Id: Ibc3ea584b95f8186c63e29f71b5164451dc433cd
diff --git a/core/android_soong_config_vars.mk b/core/android_soong_config_vars.mk
index 329847f..144edd0 100644
--- a/core/android_soong_config_vars.mk
+++ b/core/android_soong_config_vars.mk
@@ -39,7 +39,14 @@
# Default behavior for the tree wrt building modules or using prebuilts. This
# can always be overridden by setting the environment variable
# MODULE_BUILD_FROM_SOURCE.
-BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true
+ifneq ($(SANITIZE_TARGET)$(EMMA_INSTRUMENT_FRAMEWORK),)
+ # Always use sources when building the framework with Java coverage or
+ # sanitized builds as they both require purpose built prebuilts which we do
+ # not provide.
+ BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := true
+else
+ BRANCH_DEFAULT_MODULE_BUILD_FROM_SOURCE := false
+endif
ifneq (,$(MODULE_BUILD_FROM_SOURCE))
# Keep an explicit setting.