Unfortunately, this is very difficult to do above the assembly level because it requires a custom calling convention that doesn’t yet seem to be supported by an

Unfortunately, this is very difficult to do above the assembly level because it requires a custom calling convention that doesn’t yet seem to be supported by any systems programming language compiler. You have to use an assembler macro, or pipe the assembler output through sed, to patch the call and ret instructions: https://stackoverflow.com/questions/43894511 https://stackoverflow.com/questions/43894511