Merge "Remove the empty property of attestation." into main
diff --git a/core/Makefile b/core/Makefile
index 82dd770..9dfdcd0 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -5323,6 +5323,7 @@
   toybox \
   tune2fs \
   unpack_bootimg \
+  update_device \
   update_host_simulator \
   validate_target_files \
   verity_signer \
diff --git a/core/config.mk b/core/config.mk
index e919be3..2a30dd9 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -439,19 +439,14 @@
     ifeq ($(TARGET_ARCH),arm64)
       TARGET_MAX_PAGE_SIZE_SUPPORTED := 65536
     endif
-    ifeq ($(TARGET_ARCH),arm)
-      TARGET_MAX_PAGE_SIZE_SUPPORTED := 65536
-    endif
   endif
 endif
 .KATI_READONLY := TARGET_MAX_PAGE_SIZE_SUPPORTED
 
-# Check that TARGET_MAX_PAGE_SIZE_SUPPORTED is greater than 4096 only for ARM arch.
+# Only arm64 arch supports TARGET_MAX_PAGE_SIZE_SUPPORTED greater than 4096.
 ifneq ($(TARGET_MAX_PAGE_SIZE_SUPPORTED),4096)
   ifneq ($(TARGET_ARCH),arm64)
-    ifneq ($(TARGET_ARCH),arm)
-      $(error TARGET_MAX_PAGE_SIZE_SUPPORTED=$(TARGET_MAX_PAGE_SIZE_SUPPORTED) is greater than 4096. Only supported in ARM arch)
-    endif
+    $(error TARGET_MAX_PAGE_SIZE_SUPPORTED=$(TARGET_MAX_PAGE_SIZE_SUPPORTED) is greater than 4096. Only supported in arm64 arch)
   endif
 endif
 
diff --git a/core/definitions.mk b/core/definitions.mk
index 62d482b..8a24f4c 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1547,10 +1547,10 @@
 #
 # You must call this with $(eval).
 define define-aidl-java-rule
-define-aidl-java-rule-src := $(patsubst %.aidl,%.java,$(subst ../,dotdot/,$(addprefix $(2)/,$(1))))
-$$(define-aidl-java-rule-src) : $(call clean-path,$(LOCAL_PATH)/$(1)) $(AIDL)
+define_aidl_java_rule_src := $(patsubst %.aidl,%.java,$(subst ../,dotdot/,$(addprefix $(2)/,$(1))))
+$$(define_aidl_java_rule_src) : $(call clean-path,$(LOCAL_PATH)/$(1)) $(AIDL)
 	$$(transform-aidl-to-java)
-$(3) += $$(define-aidl-java-rule-src)
+$(3) += $$(define_aidl_java_rule_src)
 endef
 
 ## Given a .aidl file path generate the rule to compile it a .cpp file.
@@ -1560,10 +1560,10 @@
 #
 # You must call this with $(eval).
 define define-aidl-cpp-rule
-define-aidl-cpp-rule-src := $(patsubst %.aidl,%$(LOCAL_CPP_EXTENSION),$(subst ../,dotdot/,$(addprefix $(2)/,$(1))))
-$$(define-aidl-cpp-rule-src) : $(call clean-path,$(LOCAL_PATH)/$(1)) $(AIDL_CPP)
+define_aidl_cpp_rule_src := $(patsubst %.aidl,%$(LOCAL_CPP_EXTENSION),$(subst ../,dotdot/,$(addprefix $(2)/,$(1))))
+$$(define_aidl_cpp_rule_src) : $(call clean-path,$(LOCAL_PATH)/$(1)) $(AIDL_CPP)
 	$$(transform-aidl-to-cpp)
-$(3) += $$(define-aidl-cpp-rule-src)
+$(3) += $$(define_aidl_cpp_rule_src)
 endef
 
 ###########################################################
@@ -1585,10 +1585,10 @@
 #
 # You must call this with $(eval).
 define define-vts-cpp-rule
-define-vts-cpp-rule-src := $(patsubst %.vts,%$(LOCAL_CPP_EXTENSION),$(subst ../,dotdot/,$(addprefix $(2)/,$(1))))
-$$(define-vts-cpp-rule-src) : $(LOCAL_PATH)/$(1) $(VTSC)
+define_vts_cpp_rule_src := $(patsubst %.vts,%$(LOCAL_CPP_EXTENSION),$(subst ../,dotdot/,$(addprefix $(2)/,$(1))))
+$$(define_vts_cpp_rule_src) : $(LOCAL_PATH)/$(1) $(VTSC)
 	$$(transform-vts-to-cpp)
-$(3) += $$(define-vts-cpp-rule-src)
+$(3) += $$(define_vts_cpp_rule_src)
 endef
 
 ###########################################################
diff --git a/core/packaging/flags.mk b/core/packaging/flags.mk
index cb43741..697fe24 100644
--- a/core/packaging/flags.mk
+++ b/core/packaging/flags.mk
@@ -75,7 +75,7 @@
 define generate-partition-aconfig-flag-file
 $(eval $(strip $(1)): PRIVATE_OUT := $(strip $(1)))
 $(eval $(strip $(1)): PRIVATE_IN := $(strip $(3)))
-$(strip $(1)): $(ACONFIG)
+$(strip $(1)): $(ACONFIG) $(strip $(3))
 	mkdir -p $$(dir $$(PRIVATE_OUT))
 	$$(if $$(PRIVATE_IN), \
 		$$(ACONFIG) dump --format textproto --out $$(PRIVATE_OUT) \
diff --git a/core/proguard_basic_keeps.flags b/core/proguard_basic_keeps.flags
index b59527a..f6b34b8 100644
--- a/core/proguard_basic_keeps.flags
+++ b/core/proguard_basic_keeps.flags
@@ -10,6 +10,12 @@
 # and RuntimeVisibleTypeAnnotations, as well as associated defaults.
 -keepattributes RuntimeVisible*Annotation*,AnnotationDefault
 
+# With R8 full mode, certain attributes are only kept when matched with an
+# explicit keep rule for that target, even with a global -keepattributes rule.
+# As such, we can add the global keep rule here with minimal cost while
+# simplifying incremental development.
+-keepattributes Exceptions
+
 # For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
 -keepclassmembers enum * {
     public static **[] values();
diff --git a/core/release_config.mk b/core/release_config.mk
index b72ee89..4f9daaf 100644
--- a/core/release_config.mk
+++ b/core/release_config.mk
@@ -76,6 +76,12 @@
 ifeq ($(filter $(_all_release_configs), $(TARGET_RELEASE)),)
     $(error No release config found for TARGET_RELEASE: $(TARGET_RELEASE). Available releases are: $(_all_release_configs))
 else
+# TODO(b/294161396): Remove this logic
+ifeq ($(TARGET_RELEASE),next)
+ifndef TESTING_TARGET_RELEASE_NEXT
+   $(error "next" releases are not supported yet.  b/294161396)
+endif
+endif
     # Choose flag files
     # Don't sort this, use it in the order they gave us.
     flag_value_files := $(_all_release_configs.$(TARGET_RELEASE).FILES)
diff --git a/core/tasks/cts.mk b/core/tasks/cts.mk
index c8b1183..593b7b6 100644
--- a/core/tasks/cts.mk
+++ b/core/tasks/cts.mk
@@ -37,16 +37,18 @@
   cts_platform_release_path := cts/tests/tests/os/assets/platform_releases.txt
   cts_platform_release_string := $(shell cat $(cts_platform_release_path))
 
-  ifeq (,$(findstring $(PLATFORM_VERSION),$(cts_platform_version_string)))
-    define error_msg
-      ============================================================
-      Could not find version "$(PLATFORM_VERSION)" in CTS platform version file:
-      $(cts_platform_version_path)
-      Most likely PLATFORM_VERSION in build/core/version_defaults.mk
-      has changed and a new version must be added to this CTS file.
-      ============================================================
-    endef
-    $(error $(error_msg))
+  ifeq ($(RELEASE_PLATFORM_VERSION_CODENAME_REL),)
+    ifeq (,$(findstring $(PLATFORM_VERSION),$(cts_platform_version_string)))
+      define error_msg
+        ============================================================
+        Could not find version "$(PLATFORM_VERSION)" in CTS platform version file:
+        $(cts_platform_version_path)
+        Most likely PLATFORM_VERSION in build/core/version_defaults.mk
+        has changed and a new version must be added to this CTS file.
+        ============================================================
+      endef
+      $(error $(error_msg))
+    endif
   endif
   ifeq (,$(findstring $(PLATFORM_VERSION_LAST_STABLE),$(cts_platform_release_string)))
     define error_msg
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index e288779..99d69d1 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -52,6 +52,8 @@
 
 # These are the current development codenames, if the build is not a final
 # release build.  If this is a final release build, it is simply "REL".
+# Note that this may be overridden by RELEASE_VERSION_CODENAME_REL in
+# version_util.mk.
 PLATFORM_VERSION_CODENAME.UP1A := UpsideDownCake
 PLATFORM_VERSION_CODENAME.VP1A := VanillaIceCream
 
diff --git a/core/version_util.mk b/core/version_util.mk
index d3fcdc2..457f0f7 100644
--- a/core/version_util.mk
+++ b/core/version_util.mk
@@ -56,6 +56,12 @@
 # unreleased API level targetable by this branch, not just those that are valid
 # lunch targets for this branch.
 
+# Release config flag to override the current version to REL.  Note that the
+# codename can also be locked to REL by setting it in versino_defaults.mk.
+ifneq ($(RELEASE_PLATFORM_VERSION_CODENAME_REL),)
+  PLATFORM_VERSION_CODENAME.$(TARGET_PLATFORM_VERSION) := REL
+endif
+
 PLATFORM_VERSION_CODENAME := $(PLATFORM_VERSION_CODENAME.$(TARGET_PLATFORM_VERSION))
 ifndef PLATFORM_VERSION_CODENAME
   # PLATFORM_VERSION_CODENAME falls back to TARGET_PLATFORM_VERSION
diff --git a/target/product/generic_system.mk b/target/product/generic_system.mk
index 1a639ef..f194d8b 100644
--- a/target/product/generic_system.mk
+++ b/target/product/generic_system.mk
@@ -102,6 +102,11 @@
     libaudiopolicyengineconfigurable \
     libpolicy-subsystem
 
+
+ifneq ($(KEEP_VNDK),true)
+PRODUCT_PACKAGES += llndk.libraries.txt
+endif
+
 # Include all zygote init scripts. "ro.zygote" will select one of them.
 PRODUCT_COPY_FILES += \
     system/core/rootdir/init.zygote32.rc:system/etc/init/hw/init.zygote32.rc \
diff --git a/target/product/gsi/Android.mk b/target/product/gsi/Android.mk
index 86d4622..adeb159 100644
--- a/target/product/gsi/Android.mk
+++ b/target/product/gsi/Android.mk
@@ -195,7 +195,10 @@
 include $(CLEAR_VARS)
 _vndk_versions :=
 ifeq ($(filter com.android.vndk.current.on_vendor, $(PRODUCT_PACKAGES)),)
-	_vndk_versions += $(PRODUCT_EXTRA_VNDK_VERSIONS)
+	_vndk_versions += $(if $(call math_is_number,$(PLATFORM_VNDK_VERSION)),\
+		$(foreach vndk_ver,$(PRODUCT_EXTRA_VNDK_VERSIONS),\
+			$(if $(call math_lt,$(vndk_ver),$(PLATFORM_VNDK_VERSION)),$(vndk_ver))),\
+		$(PRODUCT_EXTRA_VNDK_VERSIONS))
 endif
 ifneq ($(BOARD_VNDK_VERSION),current)
 	_vndk_versions += $(BOARD_VNDK_VERSION)
diff --git a/tools/aconfig/Android.bp b/tools/aconfig/Android.bp
index a3f63a9..296091d 100644
--- a/tools/aconfig/Android.bp
+++ b/tools/aconfig/Android.bp
@@ -160,11 +160,28 @@
 }
 
 rust_test {
-    name: "aconfig.test.rust",
+    name: "aconfig.prod_mode.test.rust",
     srcs: [
-        "tests/aconfig_test.rs"
+        "tests/aconfig_prod_mode_test.rs"
     ],
     rustlibs: [
         "libaconfig_test_rust_library",
     ],
+}
+
+rust_aconfig_library {
+    name: "libaconfig_test_rust_library_with_test_mode",
+    crate_name: "aconfig_test_rust_library",
+    aconfig_declarations: "aconfig.test.flags",
+    test: true,
+}
+
+rust_test {
+    name: "aconfig.test_mode.test.rust",
+    srcs: [
+        "tests/aconfig_test_mode_test.rs"
+    ],
+    rustlibs: [
+        "libaconfig_test_rust_library_with_test_mode",
+    ],
 }
\ No newline at end of file
diff --git a/tools/aconfig/src/codegen_cpp.rs b/tools/aconfig/src/codegen_cpp.rs
index 530af49..30e564a 100644
--- a/tools/aconfig/src/codegen_cpp.rs
+++ b/tools/aconfig/src/codegen_cpp.rs
@@ -289,7 +289,7 @@
 
             virtual bool disabled_rw() override {
                 return server_configurable_flags::GetServerConfigurableFlag(
-                    "aconfig_test",
+                    "aconfig_flags.aconfig_test",
                     "com.android.aconfig.test.disabled_rw",
                     "false") == "true";
             }
@@ -300,7 +300,7 @@
 
             virtual bool enabled_rw() override {
                 return server_configurable_flags::GetServerConfigurableFlag(
-                    "aconfig_test",
+                    "aconfig_flags.aconfig_test",
                     "com.android.aconfig.test.enabled_rw",
                     "true") == "true";
             }
@@ -363,7 +363,7 @@
                       return it->second;
                 } else {
                   return server_configurable_flags::GetServerConfigurableFlag(
-                      "aconfig_test",
+                      "aconfig_flags.aconfig_test",
                       "com.android.aconfig.test.disabled_rw",
                       "false") == "true";
                 }
@@ -392,7 +392,7 @@
                       return it->second;
                 } else {
                   return server_configurable_flags::GetServerConfigurableFlag(
-                      "aconfig_test",
+                      "aconfig_flags.aconfig_test",
                       "com.android.aconfig.test.enabled_rw",
                       "true") == "true";
                 }
diff --git a/tools/aconfig/src/codegen_rust.rs b/tools/aconfig/src/codegen_rust.rs
index 053cebc..0234eb2 100644
--- a/tools/aconfig/src/codegen_rust.rs
+++ b/tools/aconfig/src/codegen_rust.rs
@@ -103,7 +103,7 @@
     /// query flag disabled_rw
     pub fn disabled_rw(&self) -> bool {
         flags_rust::GetServerConfigurableFlag(
-            "aconfig_test",
+            "aconfig_flags.aconfig_test",
             "com.android.aconfig.test.disabled_rw",
             "false") == "true"
     }
@@ -116,7 +116,7 @@
     /// query flag enabled_rw
     pub fn enabled_rw(&self) -> bool {
         flags_rust::GetServerConfigurableFlag(
-            "aconfig_test",
+            "aconfig_flags.aconfig_test",
             "com.android.aconfig.test.enabled_rw",
             "true") == "true"
     }
@@ -178,7 +178,7 @@
     pub fn disabled_rw(&self) -> bool {
         self.overrides.get("disabled_rw").copied().unwrap_or(
             flags_rust::GetServerConfigurableFlag(
-                "aconfig_test",
+                "aconfig_flags.aconfig_test",
                 "com.android.aconfig.test.disabled_rw",
                 "false") == "true"
         )
@@ -205,7 +205,7 @@
     pub fn enabled_rw(&self) -> bool {
         self.overrides.get("enabled_rw").copied().unwrap_or(
             flags_rust::GetServerConfigurableFlag(
-                "aconfig_test",
+                "aconfig_flags.aconfig_test",
                 "com.android.aconfig.test.enabled_rw",
                 "true") == "true"
         )
diff --git a/tools/aconfig/templates/cpp_source_file.template b/tools/aconfig/templates/cpp_source_file.template
index 289e299..f373bc6 100644
--- a/tools/aconfig/templates/cpp_source_file.template
+++ b/tools/aconfig/templates/cpp_source_file.template
@@ -23,7 +23,7 @@
             } else \{
               {{ if item.readwrite- }}
               return server_configurable_flags::GetServerConfigurableFlag(
-                  "{item.device_config_namespace}",
+                  "aconfig_flags.{item.device_config_namespace}",
                   "{item.device_config_flag}",
                   "{item.default_value}") == "true";
               {{ -else- }}
@@ -50,7 +50,7 @@
         virtual bool {item.flag_name}() override \{
             {{ if item.readwrite- }}
             return server_configurable_flags::GetServerConfigurableFlag(
-                "{item.device_config_namespace}",
+                "aconfig_flags.{item.device_config_namespace}",
                 "{item.device_config_flag}",
                 "{item.default_value}") == "true";
             {{ -else- }}
diff --git a/tools/aconfig/templates/rust_prod.template b/tools/aconfig/templates/rust_prod.template
index d518694..e22ad6f 100644
--- a/tools/aconfig/templates/rust_prod.template
+++ b/tools/aconfig/templates/rust_prod.template
@@ -10,7 +10,7 @@
     pub fn {flag.name}(&self) -> bool \{
     {{ if flag.readwrite -}}
         flags_rust::GetServerConfigurableFlag(
-          "{flag.device_config_namespace}",
+          "aconfig_flags.{flag.device_config_namespace}",
           "{flag.device_config_flag}",
           "{flag.default_value}") == "true"
     {{ -else- }}
diff --git a/tools/aconfig/templates/rust_test.template b/tools/aconfig/templates/rust_test.template
index 1e2c28a..fd1229b 100644
--- a/tools/aconfig/templates/rust_test.template
+++ b/tools/aconfig/templates/rust_test.template
@@ -15,7 +15,7 @@
         self.overrides.get("{flag.name}").copied().unwrap_or(
         {{ if flag.readwrite -}}
           flags_rust::GetServerConfigurableFlag(
-            "{flag.device_config_namespace}",
+            "aconfig_flags.{flag.device_config_namespace}",
             "{flag.device_config_flag}",
             "{flag.default_value}") == "true"
         {{ -else- }}
diff --git a/tools/aconfig/tests/aconfig_prod_mode_test.rs b/tools/aconfig/tests/aconfig_prod_mode_test.rs
new file mode 100644
index 0000000..708604b
--- /dev/null
+++ b/tools/aconfig/tests/aconfig_prod_mode_test.rs
@@ -0,0 +1,8 @@
+#[test]
+fn test_flags() {
+    assert!(!aconfig_test_rust_library::disabled_ro());
+    assert!(!aconfig_test_rust_library::disabled_rw());
+    // TODO: Fix template to not default both disabled and enabled to false
+    assert!(!aconfig_test_rust_library::enabled_ro());
+    assert!(!aconfig_test_rust_library::enabled_rw());
+}
diff --git a/tools/aconfig/tests/aconfig_test.rs b/tools/aconfig/tests/aconfig_test.rs
deleted file mode 100644
index dbfe141..0000000
--- a/tools/aconfig/tests/aconfig_test.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-#[test]
-fn test_flags() {
-    assert!(!aconfig_test_rust_library::disabled_ro());
-    assert!(!aconfig_test_rust_library::disabled_rw());
-    assert!(aconfig_test_rust_library::enabled_ro());
-    assert!(aconfig_test_rust_library::enabled_rw());
-}
diff --git a/tools/aconfig/tests/aconfig_test_mode_test.rs b/tools/aconfig/tests/aconfig_test_mode_test.rs
new file mode 100644
index 0000000..7d40a44
--- /dev/null
+++ b/tools/aconfig/tests/aconfig_test_mode_test.rs
@@ -0,0 +1,23 @@
+#[test]
+fn test_flags() {
+    assert!(!aconfig_test_rust_library::disabled_ro());
+    assert!(!aconfig_test_rust_library::disabled_rw());
+    // TODO: Fix template to not default both disabled and enabled to false
+    assert!(!aconfig_test_rust_library::enabled_ro());
+    assert!(!aconfig_test_rust_library::enabled_rw());
+
+    aconfig_test_rust_library::set_disabled_ro(true);
+    assert!(aconfig_test_rust_library::disabled_ro());
+    aconfig_test_rust_library::set_disabled_rw(true);
+    assert!(aconfig_test_rust_library::disabled_rw());
+    aconfig_test_rust_library::set_enabled_ro(true);
+    assert!(aconfig_test_rust_library::enabled_ro());
+    aconfig_test_rust_library::set_enabled_rw(true);
+    assert!(aconfig_test_rust_library::enabled_rw());
+
+    aconfig_test_rust_library::reset_flags();
+    assert!(!aconfig_test_rust_library::disabled_ro());
+    assert!(!aconfig_test_rust_library::disabled_rw());
+    assert!(!aconfig_test_rust_library::enabled_ro());
+    assert!(!aconfig_test_rust_library::enabled_rw());
+}
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 826ab1b..ec53a47 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -450,6 +450,10 @@
     return system_prop and system_prop.GetProp("ro.build.version.release") == "11"
 
   @property
+  def vabc_compression_param(self):
+    return self.get("virtual_ab_compression_method", "")
+
+  @property
   def vendor_api_level(self):
     vendor_prop = self.info_dict.get("vendor.build.prop")
     if not vendor_prop:
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index 71dbde6..56ec929 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -274,7 +274,7 @@
 import care_map_pb2
 import common
 import ota_utils
-from ota_utils import (UNZIP_PATTERN, FinalizeMetadata, GetPackageMetadata,
+from ota_utils import (VABC_COMPRESSION_PARAM_SUPPORT, FinalizeMetadata, GetPackageMetadata,
                        PayloadGenerator, SECURITY_PATCH_LEVEL_PROP_NAME, ExtractTargetFiles, CopyTargetFilesDir)
 from common import DoesInputFileContain, IsSparseImage
 import target_files_diff
@@ -872,6 +872,10 @@
     if not source_info.is_vabc or not target_info.is_vabc:
       logger.info("Either source or target does not support VABC, disabling.")
       OPTIONS.disable_vabc = True
+    if source_info.vabc_compression_param != target_info.vabc_compression_param:
+      logger.info("Source build and target build use different compression methods {} vs {}, default to source builds parameter {}".format(
+          source_info.vabc_compression_param, target_info.vabc_compression_param, source_info.vabc_compression_param))
+      OPTIONS.vabc_compression_param = source_info.vabc_compression_param
 
     # Virtual AB Compression was introduced in Androd S.
     # Later, we backported VABC to Android R. But verity support was not
@@ -886,6 +890,22 @@
         "META/ab_partitions.txt is required for ab_update."
     target_info = common.BuildInfo(OPTIONS.info_dict, OPTIONS.oem_dicts)
     source_info = None
+    if target_info.vabc_compression_param:
+      minimum_api_level_required = VABC_COMPRESSION_PARAM_SUPPORT[
+          target_info.vabc_compression_param]
+      if target_info.vendor_api_level < minimum_api_level_required:
+        logger.warning(
+            "This full OTA is configured to use VABC compression algorithm"
+            " {}, which is supported since"
+            " Android API level {}, but device is "
+            "launched with {} . If this full OTA is"
+            " served to a device running old build, OTA might fail due to "
+            "unsupported compression parameter. For safety, gz is used because "
+            "it's supported since day 1.".format(
+                target_info.vabc_compression_param,
+                minimum_api_level_required,
+                target_info.vendor_api_level))
+        OPTIONS.vabc_compression_param = "gz"
 
   if OPTIONS.partial == []:
     logger.info(
diff --git a/tools/releasetools/ota_utils.py b/tools/releasetools/ota_utils.py
index 68c6887..f288a9c 100644
--- a/tools/releasetools/ota_utils.py
+++ b/tools/releasetools/ota_utils.py
@@ -51,6 +51,19 @@
 TARGET_FILES_IMAGES_SUBDIR = ["IMAGES", "PREBUILT_IMAGES", "RADIO"]
 
 
+# Key is the compression algorithm, value is minimum API level required to
+# use this compression algorithm for VABC OTA on device.
+VABC_COMPRESSION_PARAM_SUPPORT = {
+    "gz": 31,
+    "brotli": 31,
+    "none": 31,
+    # lz4 support is added in Android U
+    "lz4": 34,
+    # zstd support is added in Android V
+    "zstd": 35,
+}
+
+
 def FinalizeMetadata(metadata, input_file, output_file, needed_property_files=None, package_key=None, pw=None):
   """Finalizes the metadata and signs an A/B OTA package.
 
@@ -727,6 +740,7 @@
     logger.info("target files %s is already extracted", path)
     return path
   extracted_dir = common.MakeTempDir("target_files")
+  logger.info(f"Extracting target files {path} to {extracted_dir}")
   common.UnzipToDir(path, extracted_dir, UNZIP_PATTERN + [""])
   for subdir in TARGET_FILES_IMAGES_SUBDIR:
     image_dir = os.path.join(extracted_dir, subdir)
@@ -850,7 +864,7 @@
       cmd.extend(["--dynamic_partition_info_file", dynamic_partition_info])
 
     apex_info = os.path.join(
-      target_dir, "META", "apex_info.pb")
+        target_dir, "META", "apex_info.pb")
     if os.path.exists(apex_info):
       cmd.extend(["--apex_info_file", apex_info])