problem in using gdb

[ramsavi]

while using gdb for a big code having various module i face a lot of problem . how to use it.

[kbw]

What do you want to do?

[ramsavi]

when debugging larrge codes having various modules i am not able to link the m and understand whats happening

[kbw]

I don't really understand. Are you saying you can't step thru the code?

[ramsavi]

yes ,

[kbw]

1. Build your code for debug.

2. Pass it to gdb the command line.
gdb ./prog

3. Set a break point:
break main

4. Start the app with args, it'll stop at the break point:
run arg1 arg2

5a: Step into functions with:
step

5b: Step over functions with:
next

6. View variables with:
print varname

7. Look at the call stack with backtrace:
bt

That's plenty to begin with.

[ramsavi]

thanks

[D4S8vCM9]

On Linux you can use DDD (data display debugger), a frontend for gdb: http://www.gnu.org/software/ddd/