diff --git a/core/sysprop.mk b/core/sysprop.mk
index f1311ed..002e1b5 100644
--- a/core/sysprop.mk
+++ b/core/sysprop.mk
@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-# sysprop.mk defines rules for generating <partition>/build.prop files
+# sysprop.mk defines rules for generating <partition>/[etc/]build.prop files
 
 # -----------------------------------------------------------------
 # property_overrides_split_enabled
@@ -59,7 +59,7 @@
 
 endef
 
-# Rule for generating <partition>/build.prop file
+# Rule for generating <partition>/[etc/]build.prop file
 #
 # $(1): partition name
 # $(2): path to the output
@@ -313,7 +313,6 @@
 $(_prop_files_),$(_prop_vars_),\
 $(_blacklist_names_)))
 
-
 # -----------------------------------------------------------------
 # vendor/build.prop
 #
@@ -351,7 +350,7 @@
     $(PRODUCT_VENDOR_PROPERTY_BLACKLIST)))
 
 # -----------------------------------------------------------------
-# product/build.prop
+# product/etc/build.prop
 #
 
 _prop_files_ := $(if $(TARGET_PRODUCT_PROP),\
@@ -364,7 +363,7 @@
     ADDITIONAL_PRODUCT_PROPERTIES \
     PRODUCT_PRODUCT_PROPERTIES
 
-INSTALLED_PRODUCT_BUILD_PROP_TARGET := $(TARGET_OUT_PRODUCT)/build.prop
+INSTALLED_PRODUCT_BUILD_PROP_TARGET := $(TARGET_OUT_PRODUCT)/etc/build.prop
 $(eval $(call build-properties,\
     product,\
     $(INSTALLED_PRODUCT_BUILD_PROP_TARGET),\
@@ -385,8 +384,6 @@
     ADDITIONAL_ODM_PROPERTIES \
     PRODUCT_ODM_PROPERTIES
 
-# Note the 'etc' sub directory. For the reason, see
-# I0733c277baa67c549bb45599abb70aba13fbdbcf
 INSTALLED_ODM_BUILD_PROP_TARGET := $(TARGET_OUT_ODM)/etc/build.prop
 $(eval $(call build-properties,\
     odm,\
@@ -396,7 +393,7 @@
     $(empty)))
 
 # -----------------------------------------------------------------
-# system_ext/build.prop
+# system_ext/etc/build.prop
 #
 _prop_files_ := $(if $(TARGET_SYSTEM_EXT_PROP),\
     $(TARGET_SYSTEM_EXT_PROP),\
@@ -406,7 +403,7 @@
 # TODO(b/117892318): don't allow duplicates so that the ordering doesn't matter
 _prop_vars_ := PRODUCT_SYSTEM_EXT_PROPERTIES
 
-INSTALLED_SYSTEM_EXT_BUILD_PROP_TARGET := $(TARGET_OUT_SYSTEM_EXT)/build.prop
+INSTALLED_SYSTEM_EXT_BUILD_PROP_TARGET := $(TARGET_OUT_SYSTEM_EXT)/etc/build.prop
 $(eval $(call build-properties,\
     system_ext,\
     $(INSTALLED_SYSTEM_EXT_BUILD_PROP_TARGET),\
diff --git a/core/tasks/tools/compatibility.mk b/core/tasks/tools/compatibility.mk
index 89b0b9b..5d820d5 100644
--- a/core/tasks/tools/compatibility.mk
+++ b/core/tasks/tools/compatibility.mk
@@ -30,6 +30,7 @@
 test_artifacts := $(COMPATIBILITY.$(test_suite_name).FILES)
 test_tools := $(HOST_OUT_JAVA_LIBRARIES)/hosttestlib.jar \
   $(HOST_OUT_JAVA_LIBRARIES)/tradefed.jar \
+  $(HOST_OUT_JAVA_LIBRARIES)/tradefed-no-fwk.jar \
   $(HOST_OUT_JAVA_LIBRARIES)/tradefed-test-framework.jar \
   $(HOST_OUT_JAVA_LIBRARIES)/loganalysis.jar \
   $(HOST_OUT_JAVA_LIBRARIES)/compatibility-host-util.jar \
diff --git a/target/product/gsi/current.txt b/target/product/gsi/current.txt
index cd4d750..d66136e 100644
--- a/target/product/gsi/current.txt
+++ b/target/product/gsi/current.txt
@@ -50,172 +50,29 @@
 VNDK-SP: libutils.so
 VNDK-SP: libutilscallstack.so
 VNDK-SP: libz.so
-VNDK-core: android.frameworks.cameraservice.common@2.0.so
-VNDK-core: android.frameworks.cameraservice.device@2.0.so
-VNDK-core: android.frameworks.cameraservice.service@2.0.so
-VNDK-core: android.frameworks.displayservice@1.0.so
-VNDK-core: android.frameworks.schedulerservice@1.0.so
-VNDK-core: android.frameworks.sensorservice@1.0.so
-VNDK-core: android.frameworks.stats@1.0.so
-VNDK-core: android.hardware.atrace@1.0.so
 VNDK-core: android.hardware.audio.common@2.0.so
-VNDK-core: android.hardware.audio.common@4.0.so
-VNDK-core: android.hardware.audio.common@5.0.so
-VNDK-core: android.hardware.audio.common@6.0.so
-VNDK-core: android.hardware.audio.effect@2.0.so
-VNDK-core: android.hardware.audio.effect@4.0.so
-VNDK-core: android.hardware.audio.effect@5.0.so
-VNDK-core: android.hardware.audio.effect@6.0.so
-VNDK-core: android.hardware.audio@2.0.so
-VNDK-core: android.hardware.audio@4.0.so
-VNDK-core: android.hardware.audio@5.0.so
-VNDK-core: android.hardware.audio@6.0.so
-VNDK-core: android.hardware.authsecret@1.0.so
-VNDK-core: android.hardware.automotive.audiocontrol@1.0.so
-VNDK-core: android.hardware.automotive.evs@1.0.so
-VNDK-core: android.hardware.automotive.vehicle@2.0.so
-VNDK-core: android.hardware.biometrics.face@1.0.so
-VNDK-core: android.hardware.biometrics.fingerprint@2.1.so
-VNDK-core: android.hardware.bluetooth.a2dp@1.0.so
-VNDK-core: android.hardware.bluetooth.audio@2.0.so
-VNDK-core: android.hardware.bluetooth@1.0.so
-VNDK-core: android.hardware.bluetooth@1.1.so
-VNDK-core: android.hardware.boot@1.0.so
-VNDK-core: android.hardware.boot@1.1.so
-VNDK-core: android.hardware.broadcastradio@1.0.so
-VNDK-core: android.hardware.broadcastradio@1.1.so
-VNDK-core: android.hardware.broadcastradio@2.0.so
-VNDK-core: android.hardware.camera.common@1.0.so
-VNDK-core: android.hardware.camera.device@1.0.so
-VNDK-core: android.hardware.camera.device@3.2.so
-VNDK-core: android.hardware.camera.device@3.3.so
-VNDK-core: android.hardware.camera.device@3.4.so
-VNDK-core: android.hardware.camera.device@3.5.so
-VNDK-core: android.hardware.camera.metadata@3.2.so
-VNDK-core: android.hardware.camera.metadata@3.3.so
-VNDK-core: android.hardware.camera.metadata@3.4.so
-VNDK-core: android.hardware.camera.provider@2.4.so
-VNDK-core: android.hardware.camera.provider@2.5.so
-VNDK-core: android.hardware.cas.native@1.0.so
-VNDK-core: android.hardware.cas@1.0.so
-VNDK-core: android.hardware.cas@1.1.so
-VNDK-core: android.hardware.cas@1.2.so
 VNDK-core: android.hardware.configstore-utils.so
 VNDK-core: android.hardware.configstore@1.0.so
 VNDK-core: android.hardware.configstore@1.1.so
 VNDK-core: android.hardware.confirmationui-support-lib.so
-VNDK-core: android.hardware.confirmationui@1.0.so
-VNDK-core: android.hardware.contexthub@1.0.so
-VNDK-core: android.hardware.drm@1.0.so
-VNDK-core: android.hardware.drm@1.1.so
-VNDK-core: android.hardware.drm@1.2.so
-VNDK-core: android.hardware.dumpstate@1.0.so
-VNDK-core: android.hardware.dumpstate@1.1.so
-VNDK-core: android.hardware.fastboot@1.0.so
-VNDK-core: android.hardware.gatekeeper@1.0.so
-VNDK-core: android.hardware.gnss.measurement_corrections@1.0.so
-VNDK-core: android.hardware.gnss.visibility_control@1.0.so
-VNDK-core: android.hardware.gnss@1.0.so
-VNDK-core: android.hardware.gnss@1.1.so
-VNDK-core: android.hardware.gnss@2.0.so
 VNDK-core: android.hardware.graphics.allocator@2.0.so
 VNDK-core: android.hardware.graphics.allocator@3.0.so
 VNDK-core: android.hardware.graphics.bufferqueue@1.0.so
 VNDK-core: android.hardware.graphics.bufferqueue@2.0.so
-VNDK-core: android.hardware.graphics.composer@2.1.so
-VNDK-core: android.hardware.graphics.composer@2.2.so
-VNDK-core: android.hardware.graphics.composer@2.3.so
-VNDK-core: android.hardware.health.storage@1.0.so
-VNDK-core: android.hardware.health@1.0.so
-VNDK-core: android.hardware.health@2.0.so
-VNDK-core: android.hardware.health@2.1.so
 VNDK-core: android.hardware.identity-V2-ndk_platform.so
-VNDK-core: android.hardware.input.classifier@1.0.so
-VNDK-core: android.hardware.input.common@1.0.so
-VNDK-core: android.hardware.ir@1.0.so
 VNDK-core: android.hardware.keymaster-V2-ndk_platform.so
-VNDK-core: android.hardware.keymaster@3.0.so
-VNDK-core: android.hardware.keymaster@4.0.so
-VNDK-core: android.hardware.keymaster@4.1.so
 VNDK-core: android.hardware.light-V1-ndk_platform.so
-VNDK-core: android.hardware.light@2.0.so
-VNDK-core: android.hardware.media.bufferpool@1.0.so
 VNDK-core: android.hardware.media.bufferpool@2.0.so
-VNDK-core: android.hardware.media.c2@1.0.so
 VNDK-core: android.hardware.media.omx@1.0.so
 VNDK-core: android.hardware.media@1.0.so
 VNDK-core: android.hardware.memtrack@1.0.so
-VNDK-core: android.hardware.neuralnetworks@1.0.so
-VNDK-core: android.hardware.neuralnetworks@1.1.so
-VNDK-core: android.hardware.neuralnetworks@1.2.so
-VNDK-core: android.hardware.neuralnetworks@1.3.so
-VNDK-core: android.hardware.nfc@1.0.so
-VNDK-core: android.hardware.nfc@1.1.so
-VNDK-core: android.hardware.nfc@1.2.so
-VNDK-core: android.hardware.oemlock@1.0.so
 VNDK-core: android.hardware.power-V1-ndk_platform.so
-VNDK-core: android.hardware.power.stats@1.0.so
-VNDK-core: android.hardware.power@1.0.so
-VNDK-core: android.hardware.power@1.1.so
-VNDK-core: android.hardware.power@1.2.so
-VNDK-core: android.hardware.power@1.3.so
-VNDK-core: android.hardware.radio.config@1.0.so
-VNDK-core: android.hardware.radio.config@1.1.so
-VNDK-core: android.hardware.radio.config@1.2.so
-VNDK-core: android.hardware.radio.deprecated@1.0.so
-VNDK-core: android.hardware.radio@1.0.so
-VNDK-core: android.hardware.radio@1.1.so
-VNDK-core: android.hardware.radio@1.2.so
-VNDK-core: android.hardware.radio@1.3.so
-VNDK-core: android.hardware.radio@1.4.so
-VNDK-core: android.hardware.radio@1.5.so
-VNDK-core: android.hardware.secure_element@1.0.so
-VNDK-core: android.hardware.secure_element@1.1.so
-VNDK-core: android.hardware.secure_element@1.2.so
-VNDK-core: android.hardware.sensors@1.0.so
-VNDK-core: android.hardware.sensors@2.0.so
 VNDK-core: android.hardware.soundtrigger@2.0-core.so
 VNDK-core: android.hardware.soundtrigger@2.0.so
-VNDK-core: android.hardware.soundtrigger@2.1.so
-VNDK-core: android.hardware.soundtrigger@2.2.so
-VNDK-core: android.hardware.tetheroffload.config@1.0.so
-VNDK-core: android.hardware.tetheroffload.control@1.0.so
-VNDK-core: android.hardware.thermal@1.0.so
-VNDK-core: android.hardware.thermal@1.1.so
-VNDK-core: android.hardware.thermal@2.0.so
-VNDK-core: android.hardware.tv.cec@1.0.so
-VNDK-core: android.hardware.tv.cec@2.0.so
-VNDK-core: android.hardware.tv.input@1.0.so
-VNDK-core: android.hardware.tv.tuner@1.0.so
-VNDK-core: android.hardware.usb.gadget@1.0.so
-VNDK-core: android.hardware.usb@1.0.so
-VNDK-core: android.hardware.usb@1.1.so
-VNDK-core: android.hardware.usb@1.2.so
 VNDK-core: android.hardware.vibrator-V1-ndk_platform.so
-VNDK-core: android.hardware.vibrator@1.0.so
-VNDK-core: android.hardware.vibrator@1.1.so
-VNDK-core: android.hardware.vibrator@1.2.so
-VNDK-core: android.hardware.vibrator@1.3.so
-VNDK-core: android.hardware.vr@1.0.so
-VNDK-core: android.hardware.weaver@1.0.so
-VNDK-core: android.hardware.wifi.hostapd@1.0.so
-VNDK-core: android.hardware.wifi.hostapd@1.1.so
-VNDK-core: android.hardware.wifi.offload@1.0.so
-VNDK-core: android.hardware.wifi.supplicant@1.0.so
-VNDK-core: android.hardware.wifi.supplicant@1.1.so
-VNDK-core: android.hardware.wifi.supplicant@1.2.so
-VNDK-core: android.hardware.wifi@1.0.so
-VNDK-core: android.hardware.wifi@1.1.so
-VNDK-core: android.hardware.wifi@1.2.so
-VNDK-core: android.hardware.wifi@1.3.so
-VNDK-core: android.hidl.allocator@1.0.so
-VNDK-core: android.hidl.memory.block@1.0.so
 VNDK-core: android.hidl.token@1.0-utils.so
 VNDK-core: android.hidl.token@1.0.so
-VNDK-core: android.system.net.netd@1.0.so
-VNDK-core: android.system.net.netd@1.1.so
 VNDK-core: android.system.suspend@1.0.so
-VNDK-core: android.system.wifi.keystore@1.0.so
 VNDK-core: libadf.so
 VNDK-core: libaudioroute.so
 VNDK-core: libaudioutils.so
diff --git a/tools/releasetools/validate_target_files.py b/tools/releasetools/validate_target_files.py
index 8763825..2e3aa74 100755
--- a/tools/releasetools/validate_target_files.py
+++ b/tools/releasetools/validate_target_files.py
@@ -236,6 +236,15 @@
 
   logging.info('Done checking %s', script_path)
 
+# Symlink files in `src` to `dst`, if the files do not
+# already exists in `dst` directory.
+def symlinkIfNotExists(src, dst):
+  if not os.path.isdir(src):
+    return
+  for filename in os.listdir(src):
+    if os.path.exists(os.path.join(dst, filename)):
+      continue
+    os.symlink(os.path.join(src, filename), os.path.join(dst, filename))
 
 def ValidateVerifiedBootImages(input_tmp, info_dict, options):
   """Validates the Verified Boot related images.
@@ -257,6 +266,12 @@
   Raises:
     AssertionError: On any verification failure.
   """
+  # See bug 159299583
+  # After commit 5277d1015, some images (e.g. acpio.img and tos.img) are no
+  # longer copied from RADIO to the IMAGES folder. But avbtool assumes that
+  # images are in IMAGES folder. So we symlink them.
+  symlinkIfNotExists(os.path.join(input_tmp, "RADIO"),
+                    os.path.join(input_tmp, "IMAGES"))
   # Verified boot 1.0 (images signed with boot_signer and verity_signer).
   if info_dict.get('boot_signer') == 'true':
     logging.info('Verifying Verified Boot images...')