=> 0x7fc42449871b <vfprintf+155>:	callq  0x7fc4244e3790 <strchrnul>
   0x7fc424498720 <vfprintf+160>:	and    $0x8000,%r14d
   0x7fc424498727 <vfprintf+167>:	mov    %rax,-0x538(%rbp)
   0x7fc42449872e <vfprintf+174>:	movl   $0x0,-0x524(%rbp)
   0x7fc424498738 <vfprintf+184>:	je     0x7fc4244988e8 <vfprintf+616>
   0x7fc42449873e <vfprintf+190>:	mov    -0x538(%rbp),%rcx
   0x7fc424498745 <vfprintf+197>:	mov    0xd8(%rbx),%rax
   0x7fc42449874c <vfprintf+204>:	mov    %r13,%rsi
   0x7fc42449874f <vfprintf+207>:	mov    %rbx,%rdi
   0x7fc424498752 <vfprintf+210>:	xor    %r14d,%r14d
   0x7fc424498755 <vfprintf+213>:	mov    $0xffffffff,%r15d
   0x7fc42449875b <vfprintf+219>:	sub    %r13,%rcx
   0x7fc42449875e <vfprintf+222>:	mov    %rcx,%rdx
   0x7fc424498761 <vfprintf+225>:	mov    %rcx,-0x658(%rbp)
   0x7fc424498768 <vfprintf+232>:	callq  *0x38(%rax)
   0x7fc42449876b <vfprintf+235>:	mov    -0x658(%rbp),%rcx