52 lines
2.3 KiB
C++
52 lines
2.3 KiB
C++
/* Copyright 2023 The TensorFlow Authors. All Rights Reserved.
|
|
|
|
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.
|
|
==============================================================================*/
|
|
|
|
// Reference implementation of the DebugLog() function that's required for a
|
|
// platform to support the TensorFlow Lite for Microcontrollers library. This is
|
|
// the only function that's absolutely required to be available on a target
|
|
// device, since it's used for communicating test results back to the host so
|
|
// that we can verify the implementation is working correctly.
|
|
// This function should support standard C/C++ stdio style formatting
|
|
// operations. It's designed to be as easy as possible to supply an
|
|
// implementation though. On platforms that have a POSIX stack or C library, it
|
|
// can be written as a single call to `vfprintf(stderr, format, args)` to output
|
|
// a string to the error stream of the console, but if there's no OS or C
|
|
// library available, there's almost always an equivalent way to write out a
|
|
// string to some serial interface that can be used instead. To add an
|
|
// equivalent function for your own platform, create your own implementation
|
|
// file, and place it in a subfolder with named after the OS you're targeting.
|
|
// For example, see the Cortex M bare metal version in the
|
|
// tensorflow/lite/micro/bluepill/debug_log.cc file.
|
|
|
|
#include "tensorflow/lite/micro/debug_log.h"
|
|
|
|
#ifndef TF_LITE_STRIP_ERROR_STRINGS
|
|
#include <cstdio>
|
|
#endif
|
|
|
|
extern "C" void DebugLog(const char* format, va_list args) {
|
|
#ifndef TF_LITE_STRIP_ERROR_STRINGS
|
|
vfprintf(stderr, format, args);
|
|
#endif
|
|
}
|
|
|
|
#ifndef TF_LITE_STRIP_ERROR_STRINGS
|
|
// Only called from MicroVsnprintf (micro_log.h)
|
|
extern "C" int DebugVsnprintf(char* buffer, size_t buf_size, const char* format,
|
|
va_list vlist) {
|
|
return vsnprintf(buffer, buf_size, format, vlist);
|
|
}
|
|
#endif
|