I get SIGSEGV when my C and C++ programs exits. I have tracked it down to the __do_global_dtors_aux function. The newly added code under HIDDEN_DTOR_LIST_END does not check if the function ptr from the list is 0 - which the old code below does. On my platform (no-mmu ARM, uclibc, uclinux) at least there are zero-pointers in that __DTOR_LIST__.

This patch solved the issue for me:

--- gcc-4.3.1.org/gcc/crtstuff.c        2008-07-02 15:52:23.000000000 +0200
+++ gcc-4.3.1/gcc/crtstuff.c    2008-07-02 17:03:35.000000000 +0200
@@ -298,6 +298,7 @@
     while (dtor_idx < max_idx)
       {
        f = __DTOR_LIST__[++dtor_idx];
+       if (!f) break;
        f ();
       }
   }