gdb-multiarch ./factorial.out
Process ./factorial.out created; pid = 229
Listening on port 8080

(gdb) target remote localhost:3624
Remote debugging using localhost:3624
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
0x76fcfb00 in ?? ()

• b main：mainファンクションでブレークポイントを設定します
• c：ブレークポイントに至るまで継続します
• s：ステップ・ワン・インストラクション
• b 14：行14にブレークポイントを挿入します
• c typed multiple times：ループの繰り返しを実行します
• l：List code

ホスト・コンソールは以下に類似します。

<name>@ubuntu-12:~$ gdb-multiarch ./factorial.out
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1)7.4-2012.04
Copyright (C) 2012 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 "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/<name>/factorial.out...done.
(gdb) target remote localhost:3624
Remote debugging using localhost:3624
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
0x76fcfb00 in ?? ()
(gdb) b main
Cannot access memory at address 0x0
Breakpoint 1 at 0x83ce: file factorial.c, line 12.
(gdb) c
Continuing.
warning: Could not load shared library symbols for 2 libraries, e.g. 
/lib/libc.so.6.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"? 

Breakpoint 1, main () at factorial.c:12
12         for (i = 0; i < 10; ++i) {
(gdb) l
7     }
8     
9     int main () {
10         int i;
11         int n;
12         for (i = 0; i < 10; ++i) {
13                n = factorial (i);
14                printf ("factorial(%d) = %d\n", i, n);
15         }
16         return 0;
(gdb) b 14
Breakpoint 2 at 0x83de: file factorial.c, line 14.
(gdb) c
Continuing. 
Breakpoint 2, main () at factorial.c:14
14                printf ("factorial(%d) = %d\n", i, n);
(gdb) s
Cannot access memory at address 0x0 
Breakpoint 2, main () at factorial.c:14
14                printf ("factorial(%d) = %d\n", i, n);
(gdb) c
Continuing. 
Breakpoint 2, main () at factorial.c:14
14                printf ("factorial(%d) = %d\n", i, n);
(gdb) c
Continuing. 
Breakpoint 2, main () at factorial.c:14
14                printf ("factorial(%d) = %d\n", i, n);
(gdb) c
Continuing. Breakpoint 2, main () at factorial.c:14
14                printf ("factorial(%d) = %d\n", i, n);
(gdb) c
Continuing. 
Breakpoint 2, main () at factorial.c:14
14                printf ("factorial(%d) = %d\n", i, n);
(gdb) c

ターゲット・コンソールは以下に類似します。

root@host:~# gdbserver :8080 ./factorial.out
Process ./factorial.out created; pid = 229
Listening on port 8080
Remote debugging from host 192.168.0.1
factorial(0) = 1
factorial(1) = 1
factorial(2) = 2
factorial(3) = 6
factorial(4) = 24
factorial(5) = 120
factorial(6) = 720
factorial(7) = 5040
factorial(8) = 40320
factorial(9) = 362880 

Child exited with status 0