buildroot

Fix ld segfault for microblaze when --gc-sections is used

Upstream: pending

https://sourceware.org/bugzilla/show_bug.cgi?id=21180

​

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

​

diff -Nur binutils-2.27.orig/bfd/elf32-microblaze.c binutils-2.27/bfd/elf32-microblaze.c

--- binutils-2.27.orig/bfd/elf32-microblaze.c   2016-08-03 09:36:50.000000000 +0200

+++ binutils-2.27/bfd/elf32-microblaze.c    2017-02-23 19:43:12.612313590 +0100

@@ -3297,13 +3297,20 @@

          || h->dynindx == -1))

         {

           asection *sec = h->root.u.def.section;

+     bfd_vma value;

+

+     value = h->root.u.def.value;

+     if (sec->output_section != NULL)

+       /* PR 21180: If the output section is NULL, then the symbol is no

+          longer needed, and in theory the GOT entry is redundant.  But

+          it is too late to change our minds now...  */

+       value += sec->output_section->vma + sec->output_offset;

+

           microblaze_elf_output_dynamic_relocation (output_bfd,

                                                     srela, srela->reloc_count++,

                                                     /* symindex= */ 0,

                                                     R_MICROBLAZE_REL, offset,

-                                                    h->root.u.def.value

-                                                    + sec->output_section->vma

-                                                    + sec->output_offset);

+                                                    value);

         }

       else

         {