[Alan Turing]

Meaning the disassembler you used put ret< +25 >? Different disassemblers will do different things, but you can always find the stack size by looking for the subtraction.

PHP Code:

0x080484b4 <+0>:    push   %ebp
   0x080484b5 <+1>:    mov    %esp,%ebp
   0x080484b7 <+3>:    sub    $0x4,%esp
   0x080484ba <+6>:    movl   $0x8048620,(%esp)
   0x080484c1 <+13>:    call   0x80483dc <puts@plt>
   0x080484c6 <+18>:    movl   $0x0,(%esp)
   0x080484cd <+25>:    call   0x80483ec <exit@plt> 


0x08048cd <+25>: call 0x080483ec <exit@plt>

That's disassembling the function.