ntdll: Store the debug info for the initial thread next to the PEB.

dlls/ntdll/unix/debug.c

@@ -294,6 +294,5 @@ void dbg_init(void)
 {
     setbuf( stdout, NULL );
     setbuf( stderr, NULL );
-    ntdll_get_thread_data()->debug_info = &initial_info;
     init_done = TRUE;
 }

dlls/ntdll/unix/virtual.c

@@ -2890,6 +2890,7 @@ static TEB *init_teb( void *ptr, PEB *peb )
  */
 TEB *virtual_alloc_first_teb(void)
 {
+    struct ntdll_thread_data *thread_data;
     TEB *teb;
     PEB *peb;
     void *ptr;
@@ -2916,6 +2917,8 @@ TEB *virtual_alloc_first_teb(void)
     peb = init_peb( (char *)teb_block + 31 * block_size );
     teb = init_teb( ptr, peb );
     *(ULONG_PTR *)&peb->CloudFileFlags = get_image_address();
+    thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
+    thread_data->debug_info = (struct debug_info *)((char *)teb_block + 31 * block_size + 2 * page_size);
     return teb;
 }