CLONE_UNTRACED
DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
CLONE_IO|CLONE_VM|CLONE_UNTRACED;
if (!(clone_flags & CLONE_UNTRACED)) {
.flags = ((flags | CLONE_VM | CLONE_UNTRACED) & ~CSIGNAL),
.flags = ((flags | CLONE_VM | CLONE_UNTRACED) & ~CSIGNAL),
.flags = CLONE_FS | CLONE_UNTRACED | CLONE_VM |