Add Android.mk for the NDK.
Bug: http://b/19149083
Bug: https://github.com/android-ndk/ndk/issues/106
Change-Id: I0024ee61dcc7b56443c275b7d6192f039a1f8c9d
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..bf74d5b
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,57 @@
+#
+# 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 := $(call my-dir)
+
+libunwind_src_files := \
+ src/libunwind.cpp \
+ src/Unwind-EHABI.cpp \
+ src/Unwind-sjlj.c \
+ src/UnwindLevel1.c \
+ src/UnwindLevel1-gcc-ext.c \
+ src/UnwindRegistersRestore.S \
+ src/UnwindRegistersSave.S \
+
+ifneq (,$(filter armeabi%,$(TARGET_ARCH_ABI)))
+ use_llvm_unwinder := true
+else
+ use_llvm_unwinder := false
+endif
+
+ifneq ($(LIBCXX_FORCE_REBUILD),true) # Using prebuilt
+
+ifeq ($(use_llvm_unwinder),true)
+include $(CLEAR_VARS)
+LOCAL_MODULE := libunwind
+LOCAL_SRC_FILES := ../llvm-libc++/libs/$(TARGET_ARCH_ABI)/$(LOCAL_MODULE)$(TARGET_LIB_EXTENSION)
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
+include $(PREBUILT_STATIC_LIBRARY)
+endif
+
+else # Building
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libunwind
+LOCAL_SRC_FILES := $(libunwind_src_files)
+LOCAL_C_INCLUDES := $(libcxxabi_includes)
+LOCAL_CFLAGS := -D__STDC_FORMAT_MACROS
+LOCAL_CPPFLAGS := -std=c++11
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
+include $(BUILD_STATIC_LIBRARY)
+
+endif # Prebuilt/building
+
+$(call import-module, android/support)
