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-rw-r--r--libstdc++-v3/libsupc++/atexit_thread.cc15
1 files changed, 14 insertions, 1 deletions
diff --git a/libstdc++-v3/libsupc++/atexit_thread.cc b/libstdc++-v3/libsupc++/atexit_thread.cc
index 9346d50..cabd7c0 100644
--- a/libstdc++-v3/libsupc++/atexit_thread.cc
+++ b/libstdc++-v3/libsupc++/atexit_thread.cc
@@ -138,11 +138,24 @@ namespace {
}
}
+#if __GXX_WEAK__
+extern "C"
+int __attribute__ ((__weak__))
+__cxa_thread_atexit_impl (void (_GLIBCXX_CDTOR_CALLABI *func) (void *),
+ void *arg, void *d);
+#endif
+
+// ??? We can't make it an ifunc, can we?
extern "C" int
__cxxabiv1::__cxa_thread_atexit (void (_GLIBCXX_CDTOR_CALLABI *dtor)(void *),
- void *obj, void */*dso_handle*/)
+ void *obj, void *dso_handle)
_GLIBCXX_NOTHROW
{
+#if __GXX_WEAK__
+ if (__cxa_thread_atexit_impl)
+ return __cxa_thread_atexit_impl (dtor, obj, dso_handle);
+#endif
+
// Do this initialization once.
if (__gthread_active_p ())
{