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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /stdlib/cxa_finalize.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'stdlib/cxa_finalize.c')
-rw-r--r--stdlib/cxa_finalize.c33
1 files changed, 27 insertions, 6 deletions
diff --git a/stdlib/cxa_finalize.c b/stdlib/cxa_finalize.c
index 2339c7b5bd..bb49f36ddd 100644
--- a/stdlib/cxa_finalize.c
+++ b/stdlib/cxa_finalize.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1999,2001,2002,2003,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,7 @@
#include <atomic.h>
#include "exit.h"
#include <fork.h>
+#include <sysdep.h>
/* If D is non-NULL, call all functions registered with `__cxa_atexit'
with the same dso handle. Otherwise, if D is NULL, call all of the
@@ -30,16 +31,36 @@ __cxa_finalize (void *d)
{
struct exit_function_list *funcs;
+ restart:
for (funcs = __exit_funcs; funcs; funcs = funcs->next)
{
struct exit_function *f;
for (f = &funcs->fns[funcs->idx - 1]; f >= &funcs->fns[0]; --f)
- if ((d == NULL || d == f->func.cxa.dso_handle)
- /* We don't want to run this cleanup more than once. */
- && ! atomic_compare_and_exchange_bool_acq (&f->flavor, ef_free,
- ef_cxa))
- (*f->func.cxa.fn) (f->func.cxa.arg, 0);
+ {
+ void (*cxafn) (void *arg, int status);
+ void *cxaarg;
+
+ if ((d == NULL || d == f->func.cxa.dso_handle)
+ /* We don't want to run this cleanup more than once. */
+ && (cxafn = f->func.cxa.fn,
+ cxaarg = f->func.cxa.arg,
+ ! atomic_compare_and_exchange_bool_acq (&f->flavor, ef_free,
+ ef_cxa)))
+ {
+ uint64_t check = __new_exitfn_called;
+
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (cxafn);
+#endif
+ cxafn (cxaarg, 0);
+
+ /* It is possible that that last exit function registered
+ more exit functions. Start the loop over. */
+ if (__builtin_expect (check != __new_exitfn_called, 0))
+ goto restart;
+ }
+ }
}
/* Remove the registered fork handlers. We do not have to