diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2016-09-16 04:03:28 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2016-09-16 04:03:28 +0000 |
| commit | b2e2cbb422caf2caab2669fed752cfcceabd5734 (patch) | |
| tree | 911ab396da14f0882c5fef2a3716402e042d1fb0 /lib | |
| parent | 9ecbc3cc1a6c1c5621c0c9637139b6e27169a125 (diff) | |
handle fallout of moving the address maps to RBT code.
because userland doesnt have subr_tree, and the tree traversal in
this file is simple, this inlines the logic that the functions in
the kernel do.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libkvm/kvm_proc.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c index 0a027bb4b4e..c98b3be2159 100644 --- a/lib/libkvm/kvm_proc.c +++ b/lib/libkvm/kvm_proc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kvm_proc.c,v 1.56 2016/05/26 13:37:26 stefan Exp $ */ +/* $OpenBSD: kvm_proc.c,v 1.57 2016/09/16 04:03:27 dlg Exp $ */ /* $NetBSD: kvm_proc.c,v 1.30 1999/03/24 05:50:50 mrg Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. @@ -166,6 +166,7 @@ _kvm_ureadm(kvm_t *kd, const struct kinfo_proc *p, u_long va, u_long *cnt) struct vm_anon *anonp, anon; struct vm_map_entry vme; struct vm_page pg; + unsigned long rboff; if (kd->swapspc == 0) { kd->swapspc = _kvm_malloc(kd, kd->nbpg); @@ -173,23 +174,26 @@ _kvm_ureadm(kvm_t *kd, const struct kinfo_proc *p, u_long va, u_long *cnt) return (NULL); } + rboff = (unsigned long)&vme.daddrs.addr_entry - (unsigned long)&vme; + /* * Look through the address map for the memory object * that corresponds to the given virtual address. */ if (KREAD(kd, (u_long)p->p_vmspace, &vm)) return (NULL); - addr = (u_long)RB_ROOT(&vm.vm_map.addr); + addr = (u_long)&vm.vm_map.addr.rbh_root.rbt_root; while (1) { if (addr == 0) return (NULL); + addr -= rboff; if (KREAD(kd, addr, &vme)) return (NULL); if (va < vme.start) - addr = (u_long)RB_LEFT(&vme, daddrs.addr_entry); + addr = (u_long)vme.daddrs.addr_entry.rbt_left; else if (va >= vme.end + vme.guard + vme.fspace) - addr = (u_long)RB_RIGHT(&vme, daddrs.addr_entry); + addr = (u_long)vme.daddrs.addr_entry.rbt_right; else if (va >= vme.end) return (NULL); else |