如何在 ESP32 中跟踪堆内存泄漏问题？

Question

Sorry for the newbie question and I am new to the embedded system development.

I am using ESP32 chip to develop a project, but found that the heap size seem steadily decrease. I have use the

MDF_LOGD("the free heap size is %d --root_write_task(start)", esp_get_minimum_free_heap_size());

to check every function in the main program but still cannot find any leakage point and the IDF APP Tracer seem not working at all. Basically no output at all.

I am quite worry that I have clone some driver to my program and cause this issue. Any other way to check such issue? I am using vscode with esp-idf extension.

Answer 1

Here are some great resources which could help you on this.

Memory Management - FreeRTOS

Mastering the FreeRTOS Real Time Kernel

Heap Memory Debugging - Espressif

Answer 2

The correct function to call to get the heap size is esp_get_free_heap_size() . The best way to check for memory leaks is to connect your device with JTAG and debug it in that way.