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Intro to Debugging

SBE201 – Data Structures and Algorithms in C. Intro to Debugging. Marwan H. Hussein, TA B.Sc., Systems & Biomedical Engineering Department, Cairo University Egypt. C ontents. Potential of debugging Features of a typical debugger. Potential of debugging.

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Intro to Debugging

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  1. SBE201 – Data Structures and Algorithms in C Intro to Debugging Marwan H. Hussein, TA B.Sc., Systems & Biomedical Engineering Department, Cairo University Egypt

  2. Contents • Potential of debugging • Features of a typical debugger

  3. Potential of debugging • Imagine there’s a big code that you want to know many intermediate values of its variables while its running.. • You can use printf() several time, but this is going to be time consuming

  4. A Debugger • A debugger is a program (separate from the compiler & linker) that allows you to run your binaries while giving you the ability of a ProgramCntr!!  • Like compilers, many debuggers exist: • VS debugger • GNU debugger (what we gonna use  open source)

  5. Abilities of a debugger • Continuous running • But stopping @ breakpoints • Single stepping • Step over • Step into • Step out • Function call stack • Several other things (advanced) Let’s see this in Eclipse

  6. drills • For pointers on 32-bit OS • Why pointer values appear in 8 numbers? • For call stack What you think this is ??

  7. Gdb shortcuts

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