diff --git a/bootstat/Android.bp b/bootstat/Android.bp
new file mode 100644
index 0000000..89b4598
--- /dev/null
+++ b/bootstat/Android.bp
@@ -0,0 +1,94 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+bootstat_lib_src_files = [
+    "boot_event_record_store.cpp",
+    "event_log_list_builder.cpp",
+    "histogram_logger.cpp",
+    "uptime_parser.cpp",
+]
+
+cc_defaults {
+    name: "bootstat_defaults",
+
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+
+        // 524291 corresponds to sysui_histogram, from
+        // frameworks/base/core/java/com/android/internal/logging/EventLogTags.logtags
+        "-DHISTOGRAM_LOG_TAG=524291",
+    ],
+    shared_libs: [
+        "libbase",
+        "libcutils",
+        "liblog",
+    ],
+    whole_static_libs: ["libgtest_prod"],
+    // Clang is required because of C++14
+    clang: true,
+}
+
+// bootstat static library
+// -----------------------------------------------------------------------------
+cc_library_static {
+    name: "libbootstat",
+    defaults: ["bootstat_defaults"],
+    srcs: bootstat_lib_src_files,
+}
+
+// bootstat static library, debug
+// -----------------------------------------------------------------------------
+cc_library_static {
+    name: "libbootstat_debug",
+    defaults: ["bootstat_defaults"],
+    host_supported: true,
+    srcs: bootstat_lib_src_files,
+
+    target: {
+        host: {
+            cflags: ["-UNDEBUG"],
+        },
+    },
+}
+
+// bootstat binary
+// -----------------------------------------------------------------------------
+cc_binary {
+    name: "bootstat",
+    defaults: ["bootstat_defaults"],
+    static_libs: ["libbootstat"],
+    init_rc: ["bootstat.rc"],
+    srcs: ["bootstat.cpp"],
+}
+
+// Native tests
+// -----------------------------------------------------------------------------
+cc_test {
+    name: "bootstat_tests",
+    defaults: ["bootstat_defaults"],
+    host_supported: true,
+    static_libs: [
+        "libbootstat_debug",
+        "libgmock",
+    ],
+    srcs: [
+        "boot_event_record_store_test.cpp",
+        "event_log_list_builder_test.cpp",
+        "testrunner.cpp",
+    ],
+}
diff --git a/bootstat/Android.mk b/bootstat/Android.mk
deleted file mode 100644
index bdd680d..0000000
--- a/bootstat/Android.mk
+++ /dev/null
@@ -1,141 +0,0 @@
-#
-# Copyright (C) 2016 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-LOCAL_PATH := $(call my-dir)
-
-bootstat_lib_src_files := \
-        boot_event_record_store.cpp \
-        event_log_list_builder.cpp \
-        histogram_logger.cpp \
-        uptime_parser.cpp \
-
-bootstat_src_files := \
-        bootstat.cpp \
-
-bootstat_test_src_files := \
-        boot_event_record_store_test.cpp \
-        event_log_list_builder_test.cpp \
-        testrunner.cpp \
-
-bootstat_shared_libs := \
-        libbase \
-        libcutils \
-        liblog \
-
-bootstat_cflags := \
-        -Wall \
-        -Wextra \
-        -Werror \
-
-# 524291 corresponds to sysui_histogram, from
-# frameworks/base/core/java/com/android/internal/logging/EventLogTags.logtags
-bootstat_cflags += -DHISTOGRAM_LOG_TAG=524291
-
-bootstat_debug_cflags := \
-        $(bootstat_cflags) \
-        -UNDEBUG \
-
-# bootstat static library
-# -----------------------------------------------------------------------------
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := libbootstat
-LOCAL_CFLAGS := $(bootstat_cflags)
-LOCAL_WHOLE_STATIC_LIBRARIES := libgtest_prod
-LOCAL_SHARED_LIBRARIES := $(bootstat_shared_libs)
-LOCAL_SRC_FILES := $(bootstat_lib_src_files)
-# Clang is required because of C++14
-LOCAL_CLANG := true
-
-include $(BUILD_STATIC_LIBRARY)
-
-# bootstat static library, debug
-# -----------------------------------------------------------------------------
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := libbootstat_debug
-LOCAL_CFLAGS := $(bootstat_cflags)
-LOCAL_WHOLE_STATIC_LIBRARIES := libgtest_prod
-LOCAL_SHARED_LIBRARIES := $(bootstat_shared_libs)
-LOCAL_SRC_FILES := $(bootstat_lib_src_files)
-# Clang is required because of C++14
-LOCAL_CLANG := true
-
-include $(BUILD_STATIC_LIBRARY)
-
-# bootstat host static library, debug
-# -----------------------------------------------------------------------------
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := libbootstat_host_debug
-LOCAL_CFLAGS := $(bootstat_debug_cflags)
-LOCAL_WHOLE_STATIC_LIBRARIES := libgtest_prod
-LOCAL_SHARED_LIBRARIES := $(bootstat_shared_libs)
-LOCAL_SRC_FILES := $(bootstat_lib_src_files)
-# Clang is required because of C++14
-LOCAL_CLANG := true
-
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-# bootstat binary
-# -----------------------------------------------------------------------------
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := bootstat
-LOCAL_CFLAGS := $(bootstat_cflags)
-LOCAL_WHOLE_STATIC_LIBRARIES := libgtest_prod
-LOCAL_SHARED_LIBRARIES := $(bootstat_shared_libs)
-LOCAL_STATIC_LIBRARIES := libbootstat
-LOCAL_INIT_RC := bootstat.rc
-LOCAL_SRC_FILES := $(bootstat_src_files)
-# Clang is required because of C++14
-LOCAL_CLANG := true
-
-include $(BUILD_EXECUTABLE)
-
-# Native tests
-# -----------------------------------------------------------------------------
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := bootstat_tests
-LOCAL_CFLAGS := $(bootstat_tests_cflags)
-LOCAL_SHARED_LIBRARIES := $(bootstat_shared_libs)
-LOCAL_STATIC_LIBRARIES := libbootstat_debug libgmock
-LOCAL_SRC_FILES := $(bootstat_test_src_files)
-# Clang is required because of C++14
-LOCAL_CLANG := true
-
-include $(BUILD_NATIVE_TEST)
-
-# Host native tests
-# -----------------------------------------------------------------------------
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := bootstat_tests
-LOCAL_CFLAGS := $(bootstat_tests_cflags)
-LOCAL_SHARED_LIBRARIES := $(bootstat_shared_libs)
-LOCAL_STATIC_LIBRARIES := libbootstat_host_debug libgmock_host
-LOCAL_SRC_FILES := $(bootstat_test_src_files)
-# Clang is required because of C++14
-LOCAL_CLANG := true
-
-include $(BUILD_HOST_NATIVE_TEST)
diff --git a/libmemunreachable/Android.bp b/libmemunreachable/Android.bp
new file mode 100644
index 0000000..85bc421
--- /dev/null
+++ b/libmemunreachable/Android.bp
@@ -0,0 +1,80 @@
+cc_defaults {
+    name: "libmemunreachable_defaults",
+
+    cflags: [
+        "-std=c++14",
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+    clang: true,
+    shared_libs: [
+        "libbase",
+        "liblog",
+    ],
+}
+
+cc_library_shared {
+    name: "libmemunreachable",
+    defaults: ["libmemunreachable_defaults"],
+    srcs: [
+        "Allocator.cpp",
+        "HeapWalker.cpp",
+        "LeakFolding.cpp",
+        "LeakPipe.cpp",
+        "LineBuffer.cpp",
+        "MemUnreachable.cpp",
+        "ProcessMappings.cpp",
+        "PtracerThread.cpp",
+        "ThreadCapture.cpp",
+    ],
+
+    static_libs: [
+        "libc_malloc_debug_backtrace",
+        "libc_logging",
+    ],
+    // Only need this for arm since libc++ uses its own unwind code that
+    // doesn't mix with the other default unwind code.
+    arch: {
+        arm: {
+            static_libs: ["libunwind_llvm"],
+        },
+    },
+    export_include_dirs: ["include"],
+    local_include_dirs: ["include"],
+}
+
+cc_test {
+    name: "memunreachable_test",
+    defaults: ["libmemunreachable_defaults"],
+    host_supported: true,
+    srcs: [
+        "tests/Allocator_test.cpp",
+        "tests/HeapWalker_test.cpp",
+        "tests/LeakFolding_test.cpp",
+    ],
+
+    target: {
+        android: {
+            srcs: [
+                "tests/DisableMalloc_test.cpp",
+                "tests/MemUnreachable_test.cpp",
+                "tests/ThreadCapture_test.cpp",
+            ],
+            shared_libs: [
+                "libmemunreachable",
+            ],
+        },
+        host: {
+            srcs: [
+                "Allocator.cpp",
+                "HeapWalker.cpp",
+                "LeakFolding.cpp",
+                "tests/HostMallocStub.cpp",
+            ],
+        },
+        darwin: {
+            enabled: false,
+        },
+    },
+}
diff --git a/libmemunreachable/Android.mk b/libmemunreachable/Android.mk
deleted file mode 100644
index 7b66d44..0000000
--- a/libmemunreachable/Android.mk
+++ /dev/null
@@ -1,65 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-memunreachable_srcs := \
-   Allocator.cpp \
-   HeapWalker.cpp \
-   LeakFolding.cpp \
-   LeakPipe.cpp \
-   LineBuffer.cpp \
-   MemUnreachable.cpp \
-   ProcessMappings.cpp \
-   PtracerThread.cpp \
-   ThreadCapture.cpp \
-
-memunreachable_test_srcs := \
-   tests/Allocator_test.cpp \
-   tests/DisableMalloc_test.cpp \
-   tests/HeapWalker_test.cpp \
-   tests/LeakFolding_test.cpp \
-   tests/MemUnreachable_test.cpp \
-   tests/ThreadCapture_test.cpp \
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := libmemunreachable
-LOCAL_SRC_FILES := $(memunreachable_srcs)
-LOCAL_CFLAGS := -std=c++14 -Wall -Wextra -Werror
-LOCAL_SHARED_LIBRARIES := libbase liblog
-LOCAL_STATIC_LIBRARIES := libc_malloc_debug_backtrace libc_logging
-# Only need this for arm since libc++ uses its own unwind code that
-# doesn't mix with the other default unwind code.
-LOCAL_STATIC_LIBRARIES_arm := libunwind_llvm
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_CLANG := true
-
-include $(BUILD_SHARED_LIBRARY)
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := memunreachable_test
-LOCAL_SRC_FILES := $(memunreachable_test_srcs)
-LOCAL_CFLAGS := -std=c++14 -Wall -Wextra -Werror
-LOCAL_CLANG := true
-LOCAL_SHARED_LIBRARIES := libmemunreachable libbase liblog
-
-include $(BUILD_NATIVE_TEST)
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := memunreachable_test
-LOCAL_SRC_FILES := \
-   Allocator.cpp \
-   HeapWalker.cpp  \
-   LeakFolding.cpp \
-   tests/Allocator_test.cpp \
-   tests/HeapWalker_test.cpp \
-   tests/HostMallocStub.cpp \
-   tests/LeakFolding_test.cpp \
-
-LOCAL_CFLAGS := -std=c++14 -Wall -Wextra -Werror
-LOCAL_CLANG := true
-LOCAL_SHARED_LIBRARIES := libbase liblog
-LOCAL_MODULE_HOST_OS := linux
-
-include $(BUILD_HOST_NATIVE_TEST)
diff --git a/libsync/Android.bp b/libsync/Android.bp
new file mode 100644
index 0000000..4948aa5
--- /dev/null
+++ b/libsync/Android.bp
@@ -0,0 +1,42 @@
+cc_defaults {
+    name: "libsync_defaults",
+    srcs: ["sync.c"],
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+    cflags: ["-Werror"],
+}
+
+cc_library_shared {
+    name: "libsync",
+    defaults: ["libsync_defaults"],
+}
+
+// libsync_recovery is only intended for the recovery binary.
+// Future versions of the kernel WILL require an updated libsync, and will break
+// anything statically linked against the current libsync.
+cc_library_static {
+    name: "libsync_recovery",
+    defaults: ["libsync_defaults"],
+}
+
+cc_test {
+    name: "sync_test",
+    defaults: ["libsync_defaults"],
+    gtest: false,
+    srcs: ["sync_test.c"],
+}
+
+cc_test {
+    name: "sync-unit-tests",
+    shared_libs: ["libsync"],
+    srcs: ["tests/sync_test.cpp"],
+    cflags: [
+        "-g",
+        "-Wall",
+        "-Werror",
+        "-std=gnu++11",
+        "-Wno-missing-field-initializers",
+        "-Wno-sign-compare",
+    ],
+    clang: true,
+}
diff --git a/libsync/Android.mk b/libsync/Android.mk
deleted file mode 100644
index f407bd1..0000000
--- a/libsync/Android.mk
+++ /dev/null
@@ -1,30 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := sync.c
-LOCAL_MODULE := libsync
-LOCAL_MODULE_TAGS := optional
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_CFLAGS := -Werror
-include $(BUILD_SHARED_LIBRARY)
-
-# libsync_recovery is only intended for the recovery binary.
-# Future versions of the kernel WILL require an updated libsync, and will break
-# anything statically linked against the current libsync.
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := sync.c
-LOCAL_MODULE := libsync_recovery
-LOCAL_MODULE_TAGS := optional
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-LOCAL_CFLAGS := -Werror
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := sync.c sync_test.c
-LOCAL_MODULE := sync_test
-LOCAL_MODULE_TAGS := optional tests
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
-LOCAL_CFLAGS := -Werror
-include $(BUILD_EXECUTABLE)
diff --git a/libsync/tests/Android.mk b/libsync/tests/Android.mk
deleted file mode 100644
index 8137c7a..0000000
--- a/libsync/tests/Android.mk
+++ /dev/null
@@ -1,29 +0,0 @@
-#
-# Copyright 2014 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-LOCAL_CLANG := true
-LOCAL_MODULE := sync-unit-tests
-LOCAL_CFLAGS += -g -Wall -Werror -std=gnu++11 -Wno-missing-field-initializers -Wno-sign-compare
-LOCAL_SHARED_LIBRARIES += libsync
-LOCAL_STATIC_LIBRARIES += libgtest_main
-LOCAL_C_INCLUDES += $(LOCAL_PATH)/../include
-LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
-LOCAL_SRC_FILES := \
-    sync_test.cpp
-include $(BUILD_NATIVE_TEST)