Script started on Wed 07 Nov 2012 08:12:09 PM EST
linux1% gcc -Wall -c -g doarray.c
linux1% nasm -f elf -g main.asm
linux1% gcc main.o doarray.o
linux1% gdb a.out
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-48.el6)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /afs/umbc.edu/users/c/h/chang/home/cs313/Fall2012/proj7/ex/a.out...done.
(gdb) list
1       ; File: main.asm 
2       ;
3       ; Example that calls do_array()
4       ;
5       
6       
7       
8               SECTION .data                   ; initialized data section
9       array: dd 7, 9, 2, 4, 8
10      
(gdb) list
11      
12              SECTION .text
13              extern do_array 
14              global main
15      
16      main:
17              push    ebp             ; set up stack frame
18              mov     ebp,esp
19      
20      before:
(gdb) break before
Breakpoint 1 at 0x80483a3: file main.asm, line 21.
(gdb) list
21              push    add3            ; function "pointer"
22              push    dword 5
23              push    array
24              call    do_array
25              add     esp, 12
26      
27      after:
28      
29              mov     esp, ebp        ; takedown stack frame
30              pop     ebp
(gdb) list
31              ret
32      
33      ;
34      ;  End of main()
35      ;
36      
37      
38      ; function prototype for add1 is:
39      ;   int add3(int n) 
40      
(gdb) break after
Breakpoint 2 at 0x80483bd: file main.asm, line 29.
(gdb) run
Starting program: /afs/umbc.edu/users/c/h/chang/home/cs313/Fall2012/proj7/ex/a.out 

Breakpoint 1, before () at main.asm:21
21              push    add3            ; function "pointer"
(gdb) x/5wd &array
0x804967c <array>:      7       9       2       4
0x804968c:      8
(gdb) cont
Continuing.

Breakpoint 2, after () at main.asm:29
29              mov     esp, ebp        ; takedown stack frame
(gdb) x/5wd &array
0x804967c <array>:      10      12      5       7
0x804968c:      11
(gdb) cont
Continuing.

Program exited with code 05.
(gdb) quit
linux1% exit

Script done on Wed 07 Nov 2012 08:14:03 PM EST