=> 0x7f2b54231cf0:	mov    (%rdi),%rax
   0x7f2b54231cf3:	movzbl 0x1(%rax),%eax
   0x7f2b54231cf7:	retq   
   0x7f2b54231cf8:	nopl   0x0(%rax,%rax,1)
   0x7f2b54231d00:	push   %rbp
   0x7f2b54231d01:	push   %rbx
   0x7f2b54231d02:	mov    %esi,%ebp
   0x7f2b54231d04:	mov    %rdi,%rbx
   0x7f2b54231d07:	sub    $0x8,%rsp
   0x7f2b54231d0b:	callq  0x7f2b54231ae0 <_dbus_header_get_byte_order>
   0x7f2b54231d10:	add    $0x8,%rsp
   0x7f2b54231d14:	mov    %ebp,%edx
   0x7f2b54231d16:	mov    %rbx,%rdi
   0x7f2b54231d19:	pop    %rbx
   0x7f2b54231d1a:	pop    %rbp
   0x7f2b54231d1b:	movsbl %al,%ecx