diff --git a/Android.bp b/Android.bp
index 7aef46b3f5..79e860993e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,3 +1,11 @@
 subdirs = [
     "*"
 ]
+
+cc_defaults {
+    name: "hidl_defaults",
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
+}
diff --git a/bluetooth/1.0/default/Android.bp b/bluetooth/1.0/default/Android.bp
index e04c2f4c1b..292f97c51a 100644
--- a/bluetooth/1.0/default/Android.bp
+++ b/bluetooth/1.0/default/Android.bp
@@ -15,6 +15,7 @@
 
 cc_library_shared {
     name: "android.hardware.bluetooth@1.0-impl",
+    defaults: ["hidl_defaults"],
     proprietary: true,
     relative_install_path: "hw",
     srcs: [
@@ -40,6 +41,7 @@ cc_library_shared {
 
 cc_library_static {
     name: "android.hardware.bluetooth-async",
+    defaults: ["hidl_defaults"],
     srcs: [
         "async_fd_watcher.cc",
     ],
@@ -54,6 +56,7 @@ cc_library_static {
 
 cc_library_static {
     name: "android.hardware.bluetooth-hci",
+    defaults: ["hidl_defaults"],
     srcs: [
         "hci_packetizer.cc",
         "hci_protocol.cc",
@@ -72,6 +75,7 @@ cc_library_static {
 
 cc_test {
     name: "bluetooth-vendor-interface-unit-tests",
+    defaults: ["hidl_defaults"],
     srcs: [
         "test/async_fd_watcher_unittest.cc",
         "test/h4_protocol_unittest.cc",
@@ -94,6 +98,7 @@ cc_test {
 
 cc_test_host {
     name: "bluetooth-address-unit-tests",
+    defaults: ["hidl_defaults"],
     srcs: [
         "bluetooth_address.cc",
         "test/bluetooth_address_test.cc",
diff --git a/bluetooth/1.0/vts/functional/Android.bp b/bluetooth/1.0/vts/functional/Android.bp
index a57a55aec0..cb1abe81c2 100644
--- a/bluetooth/1.0/vts/functional/Android.bp
+++ b/bluetooth/1.0/vts/functional/Android.bp
@@ -16,6 +16,7 @@
 
 cc_test {
     name: "VtsHalBluetoothV1_0TargetTest",
+    defaults: ["hidl_defaults"],
     srcs: ["VtsHalBluetoothV1_0TargetTest.cpp"],
     shared_libs: [
         "libbase",
diff --git a/ir/1.0/default/Android.bp b/ir/1.0/default/Android.bp
index 151a9af5a6..2b15387a0b 100644
--- a/ir/1.0/default/Android.bp
+++ b/ir/1.0/default/Android.bp
@@ -14,6 +14,7 @@
 // limitations under the License.
 cc_library_shared {
     name: "android.hardware.ir@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: ["ConsumerIr.cpp"],
@@ -29,6 +30,7 @@ cc_library_shared {
 
 cc_binary {
     relative_install_path: "hw",
+    defaults: ["hidl_defaults"],
     name: "android.hardware.ir@1.0-service",
     proprietary: true,
     init_rc: ["android.hardware.ir@1.0-service.rc"],
diff --git a/ir/1.0/vts/functional/Android.bp b/ir/1.0/vts/functional/Android.bp
index fe0a595560..807612658a 100644
--- a/ir/1.0/vts/functional/Android.bp
+++ b/ir/1.0/vts/functional/Android.bp
@@ -16,6 +16,7 @@
 
 cc_test {
     name: "VtsHalIrV1_0TargetTest",
+    defaults: ["hidl_defaults"],
     srcs: ["VtsHalIrV1_0TargetTest.cpp"],
     shared_libs: [
         "libbase",
diff --git a/nfc/1.0/default/Android.bp b/nfc/1.0/default/Android.bp
index 051ca54d58..a157f861ce 100644
--- a/nfc/1.0/default/Android.bp
+++ b/nfc/1.0/default/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "android.hardware.nfc@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: ["Nfc.cpp"],
diff --git a/nfc/1.0/vts/functional/Android.bp b/nfc/1.0/vts/functional/Android.bp
index 0ab8dc599c..f0359dc5d3 100644
--- a/nfc/1.0/vts/functional/Android.bp
+++ b/nfc/1.0/vts/functional/Android.bp
@@ -16,6 +16,7 @@
 
 cc_test {
     name: "VtsHalNfcV1_0TargetTest",
+    defaults: ["hidl_defaults"],
     srcs: ["VtsHalNfcV1_0TargetTest.cpp"],
     shared_libs: [
         "libbase",
diff --git a/radio/1.0/vts/functional/Android.bp b/radio/1.0/vts/functional/Android.bp
index 3872932c42..7b80fa2b07 100644
--- a/radio/1.0/vts/functional/Android.bp
+++ b/radio/1.0/vts/functional/Android.bp
@@ -16,6 +16,7 @@
 
 cc_test {
     name: "VtsHalRadioV1_0TargetTest",
+    defaults: ["hidl_defaults"],
     srcs: ["radio_hidl_hal_test.cpp",
            "radio_response.cpp",
            "radio_hidl_hal_icc.cpp",
diff --git a/renderscript/1.0/default/Android.bp b/renderscript/1.0/default/Android.bp
index 564d6db199..29b781e0db 100644
--- a/renderscript/1.0/default/Android.bp
+++ b/renderscript/1.0/default/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "android.hardware.renderscript@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/bar/1.0/default/Android.bp b/tests/bar/1.0/default/Android.bp
index 14506c543e..2a9607be90 100644
--- a/tests/bar/1.0/default/Android.bp
+++ b/tests/bar/1.0/default/Android.bp
@@ -2,6 +2,7 @@
 
 cc_library_shared {
     name: "android.hardware.tests.bar@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/baz/1.0/default/Android.bp b/tests/baz/1.0/default/Android.bp
index e160d8aa82..794cdf5980 100644
--- a/tests/baz/1.0/default/Android.bp
+++ b/tests/baz/1.0/default/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "android.hardware.tests.baz@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/foo/1.0/default/Android.bp b/tests/foo/1.0/default/Android.bp
index 77e617ca61..f8acf9dbf5 100644
--- a/tests/foo/1.0/default/Android.bp
+++ b/tests/foo/1.0/default/Android.bp
@@ -2,6 +2,7 @@
 
 cc_library_shared {
     name: "android.hardware.tests.foo@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/foo/1.0/default/lib/Android.bp b/tests/foo/1.0/default/lib/Android.bp
index 708cf43f1d..895582c583 100644
--- a/tests/foo/1.0/default/lib/Android.bp
+++ b/tests/foo/1.0/default/lib/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "libfootest",
+    defaults: ["hidl_defaults"],
     srcs: [
         "FooHelper.cpp"
     ],
diff --git a/tests/inheritance/1.0/default/Android.bp b/tests/inheritance/1.0/default/Android.bp
index a67dc09d7f..f6ca88a046 100644
--- a/tests/inheritance/1.0/default/Android.bp
+++ b/tests/inheritance/1.0/default/Android.bp
@@ -2,6 +2,7 @@
 
 cc_library_shared {
     name: "android.hardware.tests.inheritance@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/libhwbinder/1.0/default/Android.bp b/tests/libhwbinder/1.0/default/Android.bp
index 6e8fbb1c9a..e690ca5a77 100644
--- a/tests/libhwbinder/1.0/default/Android.bp
+++ b/tests/libhwbinder/1.0/default/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "android.hardware.tests.libhwbinder@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/memory/1.0/default/Android.bp b/tests/memory/1.0/default/Android.bp
index 40716da979..e889bd8b06 100644
--- a/tests/memory/1.0/default/Android.bp
+++ b/tests/memory/1.0/default/Android.bp
@@ -14,6 +14,7 @@
 
 cc_library_shared {
     name: "android.hardware.tests.memory@1.0-impl",
+    defaults: ["hidl_defaults"],
     proprietary: true,
     relative_install_path: "hw",
     srcs: [
diff --git a/tests/msgq/1.0/default/Android.bp b/tests/msgq/1.0/default/Android.bp
index b53fcd38df..692eddacba 100644
--- a/tests/msgq/1.0/default/Android.bp
+++ b/tests/msgq/1.0/default/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "android.hardware.tests.msgq@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/pointer/1.0/default/Android.bp b/tests/pointer/1.0/default/Android.bp
index c4dc0134f6..4615463c47 100644
--- a/tests/pointer/1.0/default/Android.bp
+++ b/tests/pointer/1.0/default/Android.bp
@@ -2,6 +2,7 @@
 
 cc_library_shared {
     name: "android.hardware.tests.pointer@1.0-impl",
+    defaults: ["hidl_defaults"],
     relative_install_path: "hw",
     proprietary: true,
     srcs: [
diff --git a/tests/pointer/1.0/default/lib/Android.bp b/tests/pointer/1.0/default/lib/Android.bp
index 77379327de..ae07b046af 100644
--- a/tests/pointer/1.0/default/lib/Android.bp
+++ b/tests/pointer/1.0/default/lib/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "libpointertest",
+    defaults: ["hidl_defaults"],
     srcs: [
         "PointerHelper.cpp"
     ],
diff --git a/wifi/1.0/vts/functional/Android.bp b/wifi/1.0/vts/functional/Android.bp
index de917c0bd2..11d0619ced 100644
--- a/wifi/1.0/vts/functional/Android.bp
+++ b/wifi/1.0/vts/functional/Android.bp
@@ -16,6 +16,7 @@
 
 cc_test {
     name: "VtsHalWifiV1_0TargetTest",
+    defaults: ["hidl_defaults"],
     srcs: [
         "VtsHalWifiV1_0TargetTest.cpp",
         "wifi_ap_iface_hidl_test.cpp",