My breakout program runs (sort of) with a few bugs. When I try to use gdb to help fix them, I get this:
(gdb) break main
Breakpoint 1 at 0x804a0e3
(gdb) run
Starting program: /home/jharvard/Dropbox/pset4/breakout1
Breakpoint 1, 0x0804a0e3 in main ()
(gdb) n
Single stepping until exit from function main,
which has no line number information.
Detaching after fork from child process 15385.
Can someone help me understand what I might be doing wrong?
Thank you.
The output using "break 1" is:
(gdb) break 1
No symbol table is loaded. Use the "file" command.
Here is the output from running gdb on ./breakout:
(
gdb) break 1
Breakpoint 1 at 0x804946e: file breakout.c, line 1.
(gdb) run
Starting program: /home/jharvard/Dropbox/pset4/breakout
Breakpoint 1, main_ () at breakout.c:47
47 srand48(time(NULL));
(gdb) n
50 GWindow window = newGWindow(WIDTH, HEIGHT);
(gdb) n
Detaching after fork from child process 11442.
53 initBricks(window);
(gdb) n
Program received signal SIGPIPE, Broken pipe.
0xb7fff424 in __kernel_vsyscall ()
(gdb) n
Single stepping until exit from function __kernel_vsyscall,
which has no line number information.
_IO_new_file_write (f=0x808d2d8, data=0xb7ffc000, n=33) at fileops.c:1255
1255 if (count < 0)
(gdb) n
1257 f->_flags |= _IO_ERR_SEEN;
(gdb) n
1264 if (f->_offset >= 0)
(gdb) n
GDB excerpt from properly working breakout code:
111 else if (getY(ball) + getHeight(ball) >= getHeight(window))
(gdb) n
124 GEvent event = getNextEvent(MOUSE_EVENT);
(gdb) print getX(ball)
No symbol "getX" in current context.
(gdb) n
125 if (event != NULL)
(gdb) print event
$10 = (GEvent) 0x0
(gdb) n
138 GObject object = detectCollision(window, ball);
(gdb) n
141 if(object != NULL)
(gdb) n
153 if(object != NULL && object != paddle)
(gdb) n
167 }
(gdb) n
78 while (lives > 0 && bricks > 0)
(gdb) print bricks
$11 = 50
(gdb) print object
No symbol "object" in current context.
(gdb)
