Re: segfault in bfd_elf32_bfd_link_add_symbols (2.14.90.0.5)

[Alan Modra]

On Tue, Aug 19, 2003 at 02:07:42PM +0200, David Le Corfec wrote:
> The 2 objects are at http://dlc.nerim.net/objs/
> just doing "ld exec_library.o graphics_hidd.o" causes the segfaults with

It's a bug in handling of absolute symbols.

        * elflink.h (elf_link_add_object_symbols): Don't crash on NULL owner.

Index: bfd/elflink.h
===================================================================
RCS file: /cvs/src/src/bfd/elflink.h,v
retrieving revision 1.239
diff -u -p -r1.239 elflink.h
--- bfd/elflink.h       20 Aug 2003 08:37:19 -0000      1.239
+++ bfd/elflink.h       23 Aug 2003 04:02:17 -0000
@@ -1186,7 +1186,8 @@ elf_link_add_object_symbols (bfd *abfd, 
              bfd *common_bfd;
 
              symbol_align = ffs (h->root.u.def.value) - 1;
-             if ((h->root.u.def.section->owner->flags & DYNAMIC) == 0)
+             if (h->root.u.def.section->owner != NULL
+                 && (h->root.u.def.section->owner->flags & DYNAMIC) == 0)
                {
                  normal_align = h->root.u.def.section->alignment_power;
                  if (normal_align > symbol_align)

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre