PANIC: File foo.c is critically damaged on line 23!

2. Write a "hello world" program in C, compile it, and step through it line by line without using a terminal window or even a *Shell* buffer.

3. Create a GUD command to display the details of a data type. This is the ptype command in gdb. To display the structure Foo in gdb, then, you type the command ptype struct Foo.