--- binutils.orig/bfd/dwarf2.c 2018-07-11 14:28:44.557235916 +0100
+++ binutils-2.29.1/bfd/dwarf2.c 2018-07-11 14:38:37.611875790 +0100
@@ -1593,7 +1593,7 @@ concat_filename (struct line_info_table
{
char *filename;
- if (file - 1 >= table->num_files)
+ if (table == NULL || file - 1 >= table->num_files)
{
/* FILE == 0 means unknown. */
if (file)