Do not invoke finalizers during thread creation or destruction

* finalize.c [THREADS] (GC_notify_or_invoke_finalizers): Do not call
GC_check_finalizer_nested() and GC_invoke_finalizers() if
GC_in_thread_creation.

1 files changed, 9 insertions, 1 deletions

diff --git a/finalize.c b/finalize.c
index 1dac0ec9..0a4353d0 100644
--- a/finalize.c
+++ b/finalize.c
@@ -1349,7 +1349,15 @@ GC_INNER void GC_notify_or_invoke_finalizers(void)
     }
 
     if (!GC_finalize_on_demand) {
-      unsigned char *pnested = GC_check_finalizer_nested();
+      unsigned char *pnested;
+
+#     ifdef THREADS
+        if (EXPECT(GC_in_thread_creation, FALSE)) {
+          UNLOCK();
+          return;
+        }
+#     endif
+      pnested = GC_check_finalizer_nested();
       UNLOCK();
       /* Skip GC_invoke_finalizers() if nested */
       if (pnested != NULL) {