Like i said: it needs cooperation with both kernel and libc. You have libc, which does mean it's in sync with dynamically compiled binaries against your libc,

Like i said: it needs cooperation with both kernel and libc. You have libc, which does mean it's in sync with dynamically compiled binaries against your libc, with the other drawbacks I mentioned too. And you need kernel maintainer cooperation too to "bring pledge to Linux".