Function kern_mmap_maxprot

freebsd/vm/vm_mmap.c:186–197

}

int
kern_mmap_maxprot(struct proc *p, int prot)
{

	if ((p->p_flag2 & P2_PROTMAX_DISABLE) != 0 ||
	    (p->p_fctl0 & NT_FREEBSD_FCTL_PROTMAX_DISABLE) != 0)
		return (_PROT_ALL);
	if (((p->p_flag2 & P2_PROTMAX_ENABLE) != 0 || imply_prot_max) &&
	    prot != PROT_NONE)
		 return (prot);
	return (_PROT_ALL);
}

int
kern_mmap(struct thread *td, uintptr_t addr0, size_t len, int prot, int flags,