Add __cxa_atexit() support for gcc3. This provides support for shared object destructors called at dlclose() time. Inspired by similar changes in FreeBSD and NetBSD.

1 files changed, 6 insertions, 3 deletions

diff --git a/src/lib/libc/stdlib/abort.c b/src/lib/libc/stdlib/abort.c
index 072a9fa8c1..244e3b28aa 100644
--- a/src/lib/libc/stdlib/abort.c
+++ b/src/lib/libc/stdlib/abort.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: abort.c,v 1.14 2005/08/08 08:05:36 espie Exp $ */
+/*      $OpenBSD: abort.c,v 1.15 2007/09/03 14:40:16 millert Exp $ */
 /*
  * Copyright (c) 1985 Regents of the University of California.
  * All rights reserved.
@@ -54,11 +54,14 @@ abort(void)
          * POSIX requires we flush stdio buffers on abort
          */
         if (cleanup_called == 0) {
+                /* the cleanup routine lives in fns[0] on the last page */
                 while (p != NULL && p->next != NULL)
                         p = p->next;
-                if (p != NULL && p->fns[0] != NULL) {
+                /* the check for fn_dso == NULL is mostly paranoia */
+                if (p != NULL && p->fns[0].fn_dso == NULL &&
+                    p->fns[0].fn_ptr.std_func != NULL) {
                         cleanup_called = 1;
-                        (*p->fns[0])();
+                        (*p->fns[0].fn_ptr.std_func)();
                 }
         }