花指令Junk Code

void noop1()
{
      int a = 3, b = 3, c;
        
    __asm__(
            "BR X11"
            );

    
      printf("%d", c);
    
}

http://malwarejake.blogspot.com/2015/12/junk-code-makes-reversing-pain.html

https://github.com/ThaisenPM/AutoJunk

https://www.praetorian.com/blog/extending-llvm-for-code-obfuscation-part-1

https://github.com/chenkaie/junkcode

svc nop

BSD System Calls Manual https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/syscall.2.html

https://stackoverflow.com/questions/56985859/ios-arm64-syscalls