disassemble _start

gdb-peda$ disassemble _start
Dump of assembler code for function _start:
   0x08048380 <+0>:	xor    ebp,ebp
   0x08048382 <+2>:	pop    esi
   0x08048383 <+3>:	mov    ecx,esp
   0x08048385 <+5>:	and    esp,0xfffffff0
   0x08048388 <+8>:	push   eax
   0x08048389 <+9>:	push   esp
   0x0804838a <+10>:	push   edx
   0x0804838b <+11>:	push   0x8048570
   0x08048390 <+16>:	push   0x8048500
   0x08048395 <+21>:	push   ecx
   0x08048396 <+22>:	push   esi
   0x08048397 <+23>:	push   0x80484e5
   0x0804839c <+28>:	call   0x8048360 <__libc_start_main@plt>
   0x080483a1 <+33>:	hlt    
   0x080483a2 <+34>:	xchg   ax,ax
   0x080483a4 <+36>:	xchg   ax,ax
   0x080483a6 <+38>:	xchg   ax,ax
   0x080483a8 <+40>:	xchg   ax,ax
   0x080483aa <+42>:	xchg   ax,ax
   0x080483ac <+44>:	xchg   ax,ax
   0x080483ae <+46>:	xchg   ax,ax
End of assembler dump.