Oct 15, 2014 · (gdb) In short, the following commands are all you need to get started using gdb: break file:lineno - sets a breakpoint in the file at lineno. set args - sets the command line arguments. run - executes the debugged program with the given command line arguments. next (n) and step (s) - step program and step program until it reaches a different ...

When using arguments having themself prefix like --or -, I was not sure to conflict with gdb one. It seems gdb takes all after args option as arguments for the program. At first I wanted to be sure, I ran gdb with quotes around your args, it is removed at launch. This works too, but optional: gdb --args executablename "--arg1" "--arg2" "--arg3"

Mar 11, 2014 · i use the gdb -tui switch for a great 'text user interface' (a kind of gui in text mode). It supports multiple windows and is generally much more friendly than using the 'list' command (since it shows the source in a sep window)

Yes. Use the attach command. Check out this link for more information. Typing help attach at a GDB console gives the following: (gdb) help attach Attach to a process or file outside of GDB. This command attaches to another target, of the same type as your last "target" command ("info files" will show your target stack). The command may take as ...

Aug 30, 2013 · I can't get gdb to use registers as command arguments on GDB 7.7-0ubuntu3.1 – nightpool. Commented Nov ...

Feb 25, 2011 · To load the corefile use. gdb binary path of corefile This will load the corefile. Then you can get the information using the bt command. For a detailed backtrace use bt full. To print the variables, use print variable-name or p variable-name. To get any help on GDB, use the help option or use apropos search-topic

Sep 14, 2011 · Another thing is that in case of a segfault, gdb stops on its own, and we can issue a backtrace (note: use Ctrl-X A to exit the gdb TUI mode after layout asm): $ gdb --args python python-subversion-test.py ./AudioFPGA/ (gdb) r Starting program: /usr/bin/python python-subversion-test.py ./MyRepoWCDir ...

Oct 11, 2009 · gdb program core > where This should tell you where the program was when the crash occurred. What else is available depends on how the server was compiled. If possible, you should recompile with debugging enabled (that would be with the '-g' flag with GCC). This would give you more information from the stack backtrace.

Jul 10, 2015 · Last but not least, you can just use your trusty old print command, since it evaluates an expression. The only difference being that he also prints the result of the expression. (gdb) p idx = 1 $1 = 1 You can read more about gdb here.

Apr 7, 2017 · You can also run your program first, then attach GDB to it: gdb --pid $(pgrep your_program) This way you will be able to run your program interactively in a separate terminal. Note: attaching GDB to another process might require using sudo or changing permissions.