[src/trunk]: src/sys/arch/arm/arm32 cpu_fork(): If PMCs are not enabled in th...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/828b561f72bf
branches:  trunk
changeset: 535080:828b561f72bf
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Fri Aug 09 23:44:17 2002 +0000

description:
cpu_fork(): If PMCs are not enabled in the parent, clear the machine-
dependent PMC state in the child.

diffstat:

 sys/arch/arm/arm32/vm_machdep.c |  6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diffs (20 lines):

diff -r 082528024a2c -r 828b561f72bf sys/arch/arm/arm32/vm_machdep.c
--- a/sys/arch/arm/arm32/vm_machdep.c   Fri Aug 09 23:08:39 2002 +0000
+++ b/sys/arch/arm/arm32/vm_machdep.c   Fri Aug 09 23:44:17 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vm_machdep.c,v 1.18 2002/08/07 05:14:58 briggs Exp $   */
+/*     $NetBSD: vm_machdep.c,v 1.19 2002/08/09 23:44:17 thorpej Exp $  */
 
 /*
  * Copyright (c) 1994-1998 Mark Brinicombe.
@@ -131,6 +131,10 @@
 #if defined(PERFCTRS)
        if (PMC_ENABLED(p1))
                pmc_md_fork(p1, p2);
+       else {
+               p2->p_md.pmc_enabled = 0;
+               p2->p_md.pmc_state = NULL;
+       }
 #endif
 
        /* Copy the pcb */