How can I use GDB for debugging my C programs?
GDB, the GNU Debugger, allows you to see what is going on inside your C program while it executes. You can set breakpoints, inspect variables, and control the execution flow.
What are the basic commands I should know?
Some basic GDB commands include: run
to start your program, break
to set a breakpoint, next
to step over functions, and print
to display variable values.
How do I set a breakpoint at a specific line?
You can set a breakpoint at a specific line by using the command break filename.c:line_number
, replacing filename.c
with your file name and line_number
with the desired line.
Can I debug a program that has already crashed?
Yes, you can debug a core dump file generated by a crashed program using GDB with the command gdb ./your_program core
, where core
is the core dump file.
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