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Asked: 2026-06-13T13:35:47+00:00

I have a CS project that I need to diffuse a bomb (the Mr.Evil

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I have a CS project that I need to diffuse a bomb (the Mr.Evil bomb if you have ever heard about it), but I am having problems with gdb when I want to set break points to lines. After I open the file in gdb and try to break a t a random line I get this problem: 

 gdb bomb 
 (gdb) break 15
 No symbol table is loaded.  Use the "file" command.

In addition, even when i use the “file” command I get 

 "/auto/bunter_usr/bomb": not in executable format: File format not recognized

I realized that the problem is because my professor has not used the -g flag when he has compiled the file. In the situation I am, is there a way to set breakpoints to lines?

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1 Answer

  1. Editorial Team

    “/auto/bunter_usr/bomb”: not in executable format: File format not recognized
    I realized that the problem is because my professor has not used the -g flag

    Your realization is incorrect. An executable compiled without -g would not produce above message.

    Most likely, the file you are pointing GDB at is a shell script, which invokes the real executable (perhaps after setting some environment variables, or adding some command line flags). You want to debug the real executable, not the shell script.

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