PR21910, segfault in common symbol override test when hash-style=gnu

	PR 21910
	* elflink.c (bfd_elf_final_link): Don't segfault when sections
	needed to define various dynamic tags have been discarded.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 694675f..5d04571 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2017-08-07  Alan Modra  <amodra@gmail.com>
+
+       PR 21910
+       * elflink.c (bfd_elf_final_link): Don't segfault when sections
+       needed to define various dynamic tags have been discarded.
+
 2017-08-07  Nick Clifton  <nickc@redhat.com>
 
        PR 21884

diff --git a/bfd/elflink.c b/bfd/elflink.c
index 0cc5f87..b89d537 100644 (file)
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -12342,7 +12342,7 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
            get_vma:
              o = bfd_get_linker_section (dynobj, name);
            do_vma:
-             if (o == NULL)
+             if (o == NULL || bfd_is_abs_section (o->output_section))
                {
                  _bfd_error_handler
                    (_("could not find section %s"), name);