MEX Debugging with VS code

Hi,

I'm trying to use VS Code to debug mex-files. I used the tutorial described here. However, my breakpoints seem to be simply skipped. Does somebody has similar experiences or perhaps even a solution to the problem?

For compilation I used MATLAB R2016b (tried also 2018a with no effect) and mingw64 with gcc version 7.3.0. The used gdb version is 8.0.1.

Any help would be appreciated, thank you!

[James Tursa]

This could be caused by the compiled code being out of date with your source code. Try rebuilding everything.

[mbvoyager]

Did you try to set the breakpoint at the line of the mexFunction? This is described as convenient here.

[aelray]

I tried rebuilding and I also put a breakpoint on the line of mexFunction, both had no effect.

Answer 1

[Lipi Vora]

Hi,

I followed the steps mentioned in the tutorial for an example MEX file found in my case in, “C:\Program Files\MATLAB\R2018a\extern\examples\mex\arrayProduct.c” MATLAB folder. I am able to hit breakpoints in the “arrayProduct” function in VS Code. I would recommend you try the steps with a sample MEX file to eliminate issues that might be arising specific to your source code.

Also, could you attach an image of the lines where you have issued a breakpoint? At times these breakpoints might have a warning symbol attached to it which might pre-indicate that the breakpoint would not be hit.

[mbvoyager]

What compiler version did you use? Is it possible that you provide a source?

[aelray]

Tried the example from “C:\Program Files\MATLAB\R2018a\extern\examples\mex\arrayProduct.c” and was still unable to hit the breakpoint.

g++ -v leads to gcc version 7.3.0 (Rev1, Built by MSYS2 project).

Screenshot of the example from the tutorial: