diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/vm/vm_mmap.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c index 3beba3cbcbc1..fb955fe44f5b 100644 --- a/sys/vm/vm_mmap.c +++ b/sys/vm/vm_mmap.c @@ -38,7 +38,7 @@ * from: Utah $Hdr: vm_mmap.c 1.6 91/10/21$ * * @(#)vm_mmap.c 8.4 (Berkeley) 1/12/94 - * $Id: vm_mmap.c,v 1.25 1995/07/09 06:58:01 davidg Exp $ + * $Id: vm_mmap.c,v 1.26 1995/07/13 08:48:31 davidg Exp $ */ /* @@ -468,9 +468,31 @@ mincore(p, uap, retval) struct mincore_args *uap; int *retval; { + vm_offset_t addr; + vm_offset_t end; + char *vec; - /* Not yet implemented */ - return (EOPNOTSUPP); + addr = trunc_page((vm_offset_t) uap->addr); + end = addr + round_page((vm_size_t) uap->len); + if (VM_MAXUSER_ADDRESS > 0 && end > VM_MAXUSER_ADDRESS) + return (EINVAL); + if (end < addr) + return (EINVAL); + + vec = uap->vec; + while(addr < end) { + int error; + if (pmap_extract(&p->p_vmspace->vm_pmap, addr)) { + error = subyte( vec, 1); + } else { + error = subyte( vec, 0); + } + if (error) + return EFAULT; + vec++; + addr += PAGE_SIZE; + } + return (0); } struct mlock_args { |