diff options
| author | Ariane van der Steldt <ariane@cvs.openbsd.org> | 2012-03-09 13:02:46 +0000 |
|---|---|---|
| committer | Ariane van der Steldt <ariane@cvs.openbsd.org> | 2012-03-09 13:02:46 +0000 |
| commit | bbf7a61211f58dbe1e5f862b98b675d12e2c964a (patch) | |
| tree | 577a2bca95e8d49e35bba7daf6495c049e09b584 /lib/libkvm/kvm_proc.c | |
| parent | 193e3efb70083a72f3d299ea5f129cf83d547115 (diff) | |
Userspace counterpart of new vmmap.
Allows memory walks to function.
Diffstat (limited to 'lib/libkvm/kvm_proc.c')
| -rw-r--r-- | lib/libkvm/kvm_proc.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c index 8bc0745b638..a2555fb77d9 100644 --- a/lib/libkvm/kvm_proc.c +++ b/lib/libkvm/kvm_proc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kvm_proc.c,v 1.45 2012/01/07 05:38:12 guenther Exp $ */ +/* $OpenBSD: kvm_proc.c,v 1.46 2012/03/09 13:02:45 ariane Exp $ */ /* $NetBSD: kvm_proc.c,v 1.30 1999/03/24 05:50:50 mrg Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. @@ -131,7 +131,7 @@ static void ps_str_e(struct ps_strings *, u_long *, int *); static char * _kvm_ureadm(kvm_t *kd, const struct miniproc *p, u_long va, u_long *cnt) { - u_long addr, head, offset, slot; + u_long addr, offset, slot; struct vm_anon *anonp, anon; struct vm_map_entry vme; struct vm_amap amap; @@ -140,27 +140,28 @@ _kvm_ureadm(kvm_t *kd, const struct miniproc *p, u_long va, u_long *cnt) if (kd->swapspc == 0) { kd->swapspc = _kvm_malloc(kd, kd->nbpg); if (kd->swapspc == 0) - return (0); + return (NULL); } /* * Look through the address map for the memory object * that corresponds to the given virtual address. - * The header just has the entire valid range. */ - head = (u_long)&p->p_vmspace->vm_map.header; - addr = head; + addr = (u_long)RB_ROOT(&p->p_vmspace->vm_map.addr); while (1) { + if (addr == 0) + return (NULL); if (KREAD(kd, addr, &vme)) - return (0); + return (NULL); - if (va >= vme.start && va < vme.end && - vme.aref.ar_amap != NULL) + if (va < vme.start) + addr = (u_long)RB_LEFT(&vme, daddrs.addr_entry); + else if (va >= vme.end + vme.guard + vme.fspace) + addr = (u_long)RB_RIGHT(&vme, daddrs.addr_entry); + else if (va >= vme.end) + return (NULL); + else break; - - addr = (u_long)vme.next; - if (addr == head) - return (0); } /* |