[src/nathanw_sa]: src/lib/libpthread Align space for new ucontext_t, if neces...

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

details:   https://anonhg.NetBSD.org/src/rev/dc1d248b2856
branches:  nathanw_sa
changeset: 506614:dc1d248b2856
user:      nathanw <nathanw%NetBSD.org@localhost>
date:      Fri Dec 20 01:07:58 2002 +0000

description:
Align space for new ucontext_t, if necessary.

diffstat:

 lib/libpthread/pthread_stack.c |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (19 lines):

diff -r 8031e11221b7 -r dc1d248b2856 lib/libpthread/pthread_stack.c
--- a/lib/libpthread/pthread_stack.c    Fri Dec 20 01:06:16 2002 +0000
+++ b/lib/libpthread/pthread_stack.c    Fri Dec 20 01:07:58 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pthread_stack.c,v 1.1.2.7 2002/11/03 12:23:05 skrll Exp $      */
+/*     $NetBSD: pthread_stack.c,v 1.1.2.8 2002/12/20 01:07:58 nathanw Exp $    */
 
 /*-
  * Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -137,6 +137,9 @@
        /* Set up an initial ucontext pointer to a "safe" area */
        t->pt_uc =(ucontext_t *) ((char *)t->pt_stack.ss_sp + 
            t->pt_stack.ss_size - (pagesize/2));
+#ifdef _UC_UCONTEXT_ALIGN
+       t->pt_uc = (ucontext_t *)((uintptr_t)t->pt_uc & _UC_UCONTEXT_ALIGN);
+#endif
 
        return t;
 }