diff options
| author | Marco S Hyman <marc@cvs.openbsd.org> | 2004-04-13 01:09:56 +0000 |
|---|---|---|
| committer | Marco S Hyman <marc@cvs.openbsd.org> | 2004-04-13 01:09:56 +0000 |
| commit | d7f62b0b2e3bd0136f993bec4f9c0b1c02ae274d (patch) | |
| tree | 98a5c87eae021a8f2bb6f192ac11e1404b2c1b48 /lib/libpthread | |
| parent | 924ef43b43ab8494440fa1921eadb9d83640d1a9 (diff) | |
refresh curthread after a thread switch so it points to the real
current thread. ok deraadt@
Diffstat (limited to 'lib/libpthread')
| -rw-r--r-- | lib/libpthread/uthread/uthread_kern.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libpthread/uthread/uthread_kern.c b/lib/libpthread/uthread/uthread_kern.c index c14810d0943..0b907306f1f 100644 --- a/lib/libpthread/uthread/uthread_kern.c +++ b/lib/libpthread/uthread/uthread_kern.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uthread_kern.c,v 1.28 2004/04/09 23:57:17 brad Exp $ */ +/* $OpenBSD: uthread_kern.c,v 1.29 2004/04/13 01:09:55 marc Exp $ */ /* * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> * All rights reserved. @@ -470,6 +470,16 @@ _thread_kern_sched(struct sigcontext * scp) /* Restore the new thread, saving current. */ _thread_machdep_switch(&curthread->_machdep, &old_thread_run->_machdep); + + /* + * DANGER WILL ROBINSON + * All stack local variables now contain the values + * they had when this thread was last running. In + * particular, curthread is NOT pointing to the + * current thread. Make it point to the current + * before use. + */ + curthread = _get_curthread(); _thread_kern_in_sched = 0; /* run any installed switch-hooks */ |