HardFault with exceptions c++

[HispaEmo]

Hello ST Community,

I'm working on implementing C++ exceptions in my project. My setup includes an STM32H735 board and I'm using FreeRTOS. Here’s a snippet of my code that involves try and catch blocks:

 

 

 

extern "C" void myTaskFunction(void* pvParameters) noexcept {
 try {
 	//throw exp seems work fine with debug 
 } catch (const std::exception& e) {
 // print something that I cant see in console
 }
 
 // HARDFAULT
	 
}

 

 

 

 

From my research, it seems that I need to disable the --specs=nano.specs option.

However, in the IDE, under Runtime library options, I have the following choices:

 

 

1. Standard C, Standard C++
2. Standard C, Reduced C++ (--specs=standard_c_nano_cpp.specs)
3. Reduced C, Standard C++ (--specs=nano_c_standard_cpp.specs)
4. Reduced C, Reduced C++ (--specs=nano.specs)

With the first option, the compilation fails because it can't find the asserts. I'm currently using the third option, but I encounter a hard fault when exiting the catch block.

I've tried modifying the makefile, but some script seems to re-include the specs after building.

 

I need guidance on how to avoid this error and properly handle exceptions. Any help would be greatly appreciated.

Thank you for your assistance.

Best regards,

Emo

[TDK]

Use Standard C, Standard C++ to enable exception handling. What asserts can it not find?

Exception handling is typically not used on embedded platforms as it vastly complicates the code.