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How To Debug Linux C Programs Effectively Using The Debugger

Posted 02-20-2019 at 02:23 PM by rtmistler
Updated 02-25-2019 at 10:23 AM by rtmistler

Introduction

The purpose of this blog is to provide a guide to Linux C (and C++) programmers as to how to use the Gnu DebuGger, GDB, effectively.

My reasons for writing this are because I participate a great deal in the Linux Questions site and view, plus respond to a number of questions in the Programming forum, and I notice that programmers of various experience seem to be lacking in either experience+knowledge, or initiative, to use the debugger.

This blog...
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Old

An Alternate Glade Build.

Posted 04-25-2015 at 01:03 PM by rainbowsally

An Alternate Glade Build. Yes, this actually pertains to the parser, but nevermind that for now.

Need to build glade with -g3 flags? The Computer Mad Science Team does, and so today's marvelous adventure starts here. [Only needs 'make' and the original glade sources d/load to do it.]

Features:
  • An alternate build system generated with Computer Mad Science tools.

Our attempt to use the standard ./configure-make sources to get glade to compile with debug flags...
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Old

See source code intermixed with assembly

Posted 01-16-2012 at 03:25 AM by hydraMax (Bits and Pixels)

Maybe everybody else already knows this, but I thought it was pretty neat anyway:

If you compile some C code with -g option (to include debugging symbols), you can then use objdump on the binary, with the -S switch, to get source code intermixed with assembly. For example, here is a snippet from one of my binaries:

Code:
int main() {
  401163:       55                      push   %rbp
  401164:       48 89 e5                mov    %rsp,%rbp
  401167:
...
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