Tensorflow Lite错误未定义对`tflite :: DefaultErrorReporter'的引用

如何解决Tensorflow Lite错误未定义对`tflite :: DefaultErrorReporter'的引用

我想在ARM Linux板上运行tflite模型。这是我遵循的步骤：

1-使用python API使用select ops将我的Tensorflow 2线性估计器模型转换为tflite：

import tensorflow as tf
loaded = tf.saved_model.load(saved_model_path,tags = None)
converter = tf.lite.TFLiteConverter.from_saved_model(saved_model_dir = saved_model_dir,signature_keys=['serving_default'])
converter.experimental_new_converter = True
converter.target_spec.supported_ops = [tf.lite.OpsSet.TFLITE_BUILTINS,tf.lite.OpsSet.SELECT_TF_OPS]
tflite_model = converter.convert()
with open('model.tflite','wb') as f:
  f.write(tflite_model)

2-在/ tensorflow / lite / Build中的tensorflowlite的deps []中添加了“ // tensorflow / lite / delegates / flex：delegate”，用于依赖关系，如here所述。

3-使用以下命令在我的电脑上构建tflite共享库：

bazel-3.1.0 build --config=elinux_armhf --config=monolithic -c opt --config=v2 //tensorflow/lite/c:libtensorflowlite_c.so

4-将位于bazel-bin / tensorflow / lite / libtensorflowlite_c.so的输出共享库重命名为libtensorflow-lite.so

将5.model.tflite，demo.cc和libtensorflow-lite.so复制到我的设备上的/opt/demo，demo.cc的内容为：

#include <stdio.h>
#include "tensorflow/lite/interpreter.h"
#include "tensorflow/lite/kernels/register.h"
#include "tensorflow/lite/model.h"
#include "tensorflow/lite/tools/gen_op_registration.h"

int main(){

    std::unique_ptr<tflite::FlatBufferModel> model = tflite::FlatBufferModel::BuildFromFile("model.tflite");

    if(!model){
        printf("Failed to mmap model\n");
        exit(0);
    }

    tflite::ops::builtin::BuiltinopResolver resolver;
    std::unique_ptr<tflite::Interpreter> interpreter;
    tflite::InterpreterBuilder(*model.get(),resolver)(&interpreter);

    // Resize input tensors,if desired.
    interpreter->AllocateTensors();

    float* input = interpreter->typed_input_tensor<float>(0);
    // Dummy input for testing
    *input = 2.0;

    interpreter->Invoke();

    float* output = interpreter->typed_output_tensor<float>(0);

    printf("Result is: %f\n",*output);

    return 0;
}

6将Tensorflow源复制到我的ARM板的/ opt。

7-通过在我的设备上运行以下命令来创建目标文件：

/opt/demo# g++ demo.cc -c -I /opt/tensorflow_src -I /opt/tensorflow_src/flatbuffers/

8-当我运行g++ -L/opt/demo/ -o exec demo.o -ltensorflow-lite命令生成二进制文件时，出现以下错误：

/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.o: in function `main':
demo.cc:(.text+0xc): undefined reference to `tflite::DefaultErrorReporter()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0x24): undefined reference to `tflite::FlatBufferModel::BuildFromFile(char const*,tflite::ErrorReporter*)'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0x68): undefined reference to `tflite::ops::builtin::BuiltinopResolver::BuiltinopResolver()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0x90): undefined reference to `tflite::InterpreterBuilder::InterpreterBuilder(tflite::FlatBufferModel const&,tflite::OpResolver const&)'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0xa4): undefined reference to `tflite::InterpreterBuilder::operator()(std::unique_ptr<tflite::Interpreter,std::default_delete<tflite::Interpreter> >*)'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0xb0): undefined reference to `tflite::InterpreterBuilder::~InterpreterBuilder()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0xc8): undefined reference to `tflite::Interpreter::AllocateTensors()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0x110): undefined reference to `tflite::Interpreter::Invoke()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.cc:(.text+0x190): undefined reference to `tflite::InterpreterBuilder::~InterpreterBuilder()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.o: in function `tflite::MutableOpResolver::~MutableOpResolver()':
demo.cc:(.text._ZN6tflite17MutableOpResolverD2Ev[_ZN6tflite17MutableOpResolverD5Ev]+0x6c): undefined reference to `vtable for tflite::MutableOpResolver'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.o: in function `tflite::ops::builtin::BuiltinopResolver::~BuiltinopResolver()':
demo.cc:(.text._ZN6tflite3ops7builtin17BuiltinopResolverD2Ev[_ZN6tflite3ops7builtin17BuiltinopResolverD5Ev]+0x4c): undefined reference to `vtable for tflite::ops::builtin::BuiltinopResolver'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.o: in function `std::default_delete<tflite::FlatBufferModel>::operator()(tflite::FlatBufferModel*) const':
demo.cc:(.text._ZNKSt14default_deleteIN6tflite15FlatBufferModelEEclEPS1_[_ZNKSt14default_deleteIN6tflite15FlatBufferModelEEclEPS1_]+0x24): undefined reference to `tflite::FlatBufferModel::~FlatBufferModel()'
/usr/lib/gcc/arm-poky-linux-gnueabi/9.3.0/../../../../arm-poky-linux-gnueabi/bin/ld: demo.o: in function `std::default_delete<tflite::Interpreter>::operator()(tflite::Interpreter*) const':
demo.cc:(.text._ZNKSt14default_deleteIN6tflite11InterpreterEEclEPS1_[_ZNKSt14default_deleteIN6tflite11InterpreterEEclEPS1_]+0x24): undefined reference to `tflite::Interpreter::~Interpreter()'
collect2: error: ld returned 1 exit status

如何解决此问题并编译我的解释器二进制文件？

解决方法

我重新检查了步骤，发现bazel build命令出现问题，我正在为C而不是C ++构建.so库。我可以通过使用以下命令为C ++构建libtensorflow来解决该问题：

bazel-3.1.0 build --config=elinux_armhf --config=monolithic -c opt //tensorflow/lite:libtensorflowlite.so --local_ram_resources=10240 --config=noaws

起初，我尝试构建时没有noaws标志，但是由于在bazel的依赖项下载阶段，aws相关的软件包链接被破坏，因此构建失败，但是我通过添加noaws标志解决了该问题。

对于试图将Tensorflow2线性估计器模型转换为TensorFlow精简模型并希望使用Bazel为ARM体系结构使用选定的TensorFlow ops构建C ++库的人来说，这篇文章可能会有用。