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Asked: 2026-05-11T16:12:16+00:00

I am a beginner in GDB and I got it working correctly. However, I

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I am a beginner in GDB and I got it working correctly. However, I am wondering how this is used in big projects. I have a project where build is done using makefile and g++. For GDB to work, we need to compile with debug symbols on, right (g++ -g files)?

Question

  1. Do I need to create a new target in makefile something like “debug”, so that I can make a debug build like make debug. Is this the best practice?
  2. Suppose, I need to debug only foo.cpp and is it possible to generate debug symbols only for that other than building whole program including main?

Any thoughts?

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1 Answer

  1. Editorial Team

    1. Not needed, although you may want to consider always building with -g (sometimes, you may even need to try and debug optimized (-O1, -O2, etc) code; why not leave -g on? For releases, you can always just run strip on the binary.

    2. Yes. Build just that file with -g .

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