[src/trunk]: src/sys/arch/arm/arm32 add MD part of SA/pthread pagefault handl...

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

details:   https://anonhg.NetBSD.org/src/rev/a5ac8f7da682
branches:  trunk
changeset: 552099:a5ac8f7da682
user:      cl <cl%NetBSD.org@localhost>
date:      Thu Sep 18 22:37:38 2003 +0000

description:
add MD part of SA/pthread pagefault handling on arm

diffstat:

 sys/arch/arm/arm32/fault.c |  14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diffs (43 lines):

diff -r b3faf410a73c -r a5ac8f7da682 sys/arch/arm/arm32/fault.c
--- a/sys/arch/arm/arm32/fault.c        Thu Sep 18 22:36:32 2003 +0000
+++ b/sys/arch/arm/arm32/fault.c        Thu Sep 18 22:37:38 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fault.c,v 1.31 2003/07/09 20:14:15 thorpej Exp $       */
+/*     $NetBSD: fault.c,v 1.32 2003/09/18 22:37:38 cl Exp $    */
 
 /*
  * Copyright 2003 Wasabi Systems, Inc.
@@ -82,7 +82,7 @@
 #include "opt_pmap_debug.h"
 
 #include <sys/types.h>
-__KERNEL_RCSID(0, "$NetBSD: fault.c,v 1.31 2003/07/09 20:14:15 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fault.c,v 1.32 2003/09/18 22:37:38 cl Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -469,8 +469,14 @@
                        return;
                }
                map = kernel_map;
-       } else
+       } else {
                map = &vm->vm_map;
+               if (l->l_flag & L_SA) {
+                       KDASSERT(p != NULL && p->p_sa != NULL);
+                       p->p_sa->sa_vp_faultaddr = (vaddr_t)fault_address;
+                       l->l_flag |= L_SA_PAGEFAULT;
+               }
+       }
 
 #ifdef PMAP_DEBUG
        if (pmap_debug_level >= 0)
@@ -526,6 +532,8 @@
        pcb->pcb_onfault = NULL;
        rv = uvm_fault(map, va, 0, ftype);
        pcb->pcb_onfault = onfault;
+       if (map != kernel_map)
+               l->l_flag &= ~L_SA_PAGEFAULT;
        if (rv == 0) {
                if (user != 0) /* Record any stack growth... */
                        uvm_grow(p, trunc_page(va));