``ptrace()`` system call is invoked as ``ptrace(request, pid, addr,
data)`` where:
-- ``request`` - one of ``PTRACE_PEEKMTETAGS`` or ``PTRACE_PEEKMTETAGS``.
+- ``request`` - one of ``PTRACE_PEEKMTETAGS`` or ``PTRACE_POKEMTETAGS``.
- ``pid`` - the tracee's PID.
- ``addr`` - address in the tracee's address space.
- ``data`` - pointer to a ``struct iovec`` where ``iov_base`` points to