ESP32: "Warning: could not set a breakpoint on main. 'Step into new instance' —

[RolfSt]

I load my

ESP-32 NodeMCU Developmantboard from AZ-Delivery via

OLMEX ARM-SB-OCD-H

and get

Warning: could not set a breakpoint on main. ‘Step into new instance’ will not work.

Nevertheless, debgging seems to work. What does this warning mean ?

I’m on the porting a STM32 app – done with VsualGDB – to ESP32 and try as a first step

Blink as built in.

 

Another question: should optimization set be set to -Og ?

[support]

Hi,

It looks like your technical support has expired. Please feel free to renew your support here and we will be happy to answer your questions.

[RolfSt]

So now I have updated my license

[support]

Thanks for renewing your license.

This message comes from the VisualGDB logic responsible for the “Step into new instance” command. It would normally set a breakpoint in main() and if you start debugging with F10 instead of F5, the program would stop once this breakpoint triggers.

Because ESP32 programs use app_main() instead of main(), this functionality won’t work by default. You can easily change the name of the function via VisualGDB Project Properties -> Advanced GDB Settings, or simply ignore the message if you are not using the “Step into new instance” command.

[Author]

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