[Linux] C++ gdb debugging - breakpoints don't work

Type: Debugger

Hello everyone,
I can't get the gdb debugger to run in my c++ makefile project. vscode does not stop at breakpoints. The program just runs through. If I build a single cpp file without makefile everything works. A plain C project with makefile also works. I also tried to copy all *.o. *.cpp and *.h files into the bin directory. Unfortunately this doesn't help either. Can you please help me.

Version: 1.44.2
Commit: ff915844119ce9485abfe8aa9076ec76b5300ddd
Date: 2020-04-23T19:32:05.786Z
Electron: 7.1.14
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Linux x64 5.4.39-1-MANJARO
C/C++ Extension Version: 0.28.0 / Downgrading to 0.27.1 or 0.27.0 does not solve the problem.
Other extensions: C/C++ Project Generator / C/C++ Snippets Pro / PlatformIO IDE / Python / systemd-unit-file / Disabling them does not solve the problem.

The sample project is located here
https://github.com/axel-dd/cpptest

debug logs are here
https://github.com/axel-dd/cpptest/blob/master/debug.txt