[CRT] Do not call atexit at process initialization

There is no guarantee that the underlying APIs are initialized at this point

CORE-17362

sdk/lib/crt/startup/crtexe.c

···
 
 extern int _MINGW_INSTALL_DEBUG_MATHERR;
 
+#ifdef __GNUC__
+extern void __do_global_dtors(void);
+#endif
+
 static int __cdecl
 pre_c_init (void)
 {
···
 #endif
   return ret;
 }
-
-void __call_atexit();
 
 static
 __declspec(noinline)
···
 #endif
     mainret = main (argc, argv, envp);
 #endif
-    __call_atexit();
+
+#ifdef __GNUC__
+    __do_global_dtors();
+#endif
+
     if (!managedapp)
       exit (mainret);
 

sdk/lib/crt/startup/gccmain.c

···
     {
       __CTOR_LIST__[i] ();
     }
-
-  atexit (__do_global_dtors);
 }
 
 static int initialized = 0;