[1/N] MTK Android library integration

backends/mediatek/CMakeLists.txt

@@ -25,10 +25,10 @@ include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/runtime/include)
 
 # targets
 add_library(neuron_backend SHARED)
+target_compile_options(neuron_backend PRIVATE "-frtti" "-fexceptions")
 target_link_libraries(neuron_backend
     PRIVATE
     executorch_core
-    portable_ops_lib
     android
     log
     ${NEURON_BUFFER_ALLOCATOR_LIB}

backends/mediatek/runtime/include/NeuronLog.h

@@ -8,7 +8,7 @@
 
 #pragma once
 
-#include <api/NeuronAdapter.h>
+#include "api/NeuronAdapter.h"
 
 #include <android/log.h>
 #include <sys/system_properties.h>

build/build_android_llm_demo.sh

@@ -30,7 +30,7 @@ build_android_native_library() {
   cmake . -DCMAKE_INSTALL_PREFIX="${CMAKE_OUT}" \
     -DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK}/build/cmake/android.toolchain.cmake" \
     -DANDROID_ABI="${ANDROID_ABI}" \
-    -DANDROID_PLATFORM=android-23 \
+    -DANDROID_PLATFORM=android-26 \
     -DEXECUTORCH_ENABLE_LOGGING=ON \
     -DEXECUTORCH_LOG_LEVEL=Info \
     -DEXECUTORCH_BUILD_XNNPACK=ON \
@@ -42,6 +42,8 @@ build_android_native_library() {
     -DEXECUTORCH_BUILD_KERNELS_OPTIMIZED=ON \
     -DEXECUTORCH_BUILD_KERNELS_QUANTIZED=ON \
     -DEXECUTORCH_BUILD_KERNELS_CUSTOM=ON \
+    -DEXECUTORCH_BUILD_NEURON="${EXECUTORCH_BUILD_NEURON}" \
+    -DNEURON_BUFFER_ALLOCATOR_LIB="${NEURON_BUFFER_ALLOCATOR_LIB}" \
     -DEXECUTORCH_BUILD_QNN="${EXECUTORCH_BUILD_QNN}" \
     -DQNN_SDK_ROOT="${QNN_SDK_ROOT}" \
     -DCMAKE_BUILD_TYPE=Release \
@@ -57,10 +59,12 @@ build_android_native_library() {
   cmake extension/android \
     -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK}/build/cmake/android.toolchain.cmake \
     -DANDROID_ABI="${ANDROID_ABI}" \
-    -DANDROID_PLATFORM=android-23 \
+    -DANDROID_PLATFORM=android-26 \
     -DCMAKE_INSTALL_PREFIX="${CMAKE_OUT}" \
     -DEXECUTORCH_ENABLE_LOGGING=ON \
     -DEXECUTORCH_LOG_LEVEL=Info \
+    -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=BOTH \
+    -DNEURON_BUFFER_ALLOCATOR_LIB="$NEURON_BUFFER_ALLOCATOR_LIB" \
     -DEXECUTORCH_BUILD_KERNELS_CUSTOM=ON \
     -DEXECUTORCH_BUILD_LLAMA_JNI=ON \
     -DCMAKE_BUILD_TYPE=Release \
@@ -84,6 +88,13 @@ build_android_native_library() {
     cp "${QNN_SDK_ROOT}"/lib/hexagon-v73/unsigned/libQnnHtpV73Skel.so "${BUILD_AAR_DIR}/jni/${ANDROID_ABI}/"
     cp "${QNN_SDK_ROOT}"/lib/hexagon-v75/unsigned/libQnnHtpV75Skel.so "${BUILD_AAR_DIR}/jni/${ANDROID_ABI}/"
   fi
+
+  # Copy MTK related so library
+  if [ -n "$NEURON_BUFFER_ALLOCATOR_LIB" ] && [ "$ANDROID_ABI" == "arm64-v8a" ]; then
+    cp "${CMAKE_OUT}"/backends/mediatek/libneuron_backend.so ${BUILD_AAR_DIR}/jni/${ANDROID_ABI}/
+    cp "$NEURON_BUFFER_ALLOCATOR_LIB"/libneuron_buffer_allocator.so ${BUILD_AAR_DIR}/jni/${ANDROID_ABI}/
+    cp "$NEURON_BUFFER_ALLOCATOR_LIB"/libneuronusdk_adapter.mtk.so ${BUILD_AAR_DIR}/jni/${ANDROID_ABI}/
+  fi
 }
 
 build_aar() {
@@ -96,7 +107,7 @@ build_aar() {
   # between Java and JNI
   find jni -type f -name "libexecutorch_jni.so" -exec bash -c 'mv "$1" "${1/_jni/}"' bash {} \;
   # Zip all necessary files into the AAR file
-  zip -r executorch.aar libs jni/*/libexecutorch.so jni/*/libqnn*.so jni/*/libQnn*.so AndroidManifest.xml
+  zip -r executorch.aar libs jni/*/libexecutorch.so jni/*/libqnn*.so jni/*/libQnn*.so jni/*/libneuron_backend.so jni/*/libneuron_buffer_allocator.so jni/*/libneuronusdk_adapter.mtk.so AndroidManifest.xml
   cp executorch.aar executorch-llama.aar
   popd
 }

build/executorch-config.cmake

@@ -72,6 +72,7 @@ else()
       ${FLATCCRT_LIB}
       coremldelegate
       mpsdelegate
+      neuron_backend
       qnn_executorch_backend
       portable_ops_lib
       extension_module