0x7f30caa7bf3b : cmp $0xfffffffffffff000,%rax 0x7f30caa7bf41 : mov %eax,%edx 0x7f30caa7bf43 : ja 0x7f30caa7bf48 0x7f30caa7bf45 : mov %edx,%eax 0x7f30caa7bf47 : retq 0x7f30caa7bf48 : mov %eax,%edx 0x7f30caa7bf4a : mov 0x20804f(%rip),%rax # 0x7f30cac83fa0 0x7f30caa7bf51 : neg %edx 0x7f30caa7bf53 : mov %edx,%fs:(%rax) 0x7f30caa7bf56 : mov $0xffffffff,%edx 0x7f30caa7bf5b : jmp 0x7f30caa7bf45 0x7f30caa7bf5d: nop 0x7f30caa7bf5e: nop 0x7f30caa7bf5f: nop 0x7f30caa7bf60 : jmpq 0x7f30caa71e98 <__libc_system@plt> 0x7f30caa7bf65: nop