Make bfd.link_next field a union

This field of struct bfd is currently only used to chain together
linker input files.  This patch prepares to use the field to stash
the linker hash table, which is always created on the linker output
file.

bfd/
	* bfd.c (struct bfd): Replace link_next with a union.
	* aoutx.h, * bfd.c, * coff-ppc.c, * coff-rs6000.c, * cofflink.c,
	* ecoff.c, * elf-m10300.c, * elf32-arm.c, * elf32-avr.c,
	* elf32-hppa.c, * elf32-i386.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc1x.c, * elf32-metag.c,
	* elf32-microblaze.c, * elf32-nds32.c, * elf32-nios2.c,
	* elf32-or1k.c, * elf32-ppc.c, * elf32-rl78.c, * elf32-s390.c,
	* elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-spu.c,
	* elf32-tic6x.c, * elf32-tilepro.c, * elf32-xstormy16.c,
	* elf32-xtensa.c, * elf64-alpha.c, * elf64-hppa.c, * elf64-ia64-vms.c,
	* elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-x86-64.c,
	* elflink.c, * elfnn-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c,
	* elfxx-tilegx.c, * linker.c, * pdp11.c, * peXXigen.c, * simple.c,
	* sunos.c, * vms-alpha.c, * xcofflink.c: Update for above.
	* bfd-in2.h: Regenerate.
include/
	* bfdlink.h: Update for bfd.link_next change.
ld/
	* emultempl/cr16elf.em, * emultempl/elf32.em, * emultempl/genelf.em,
	* emultempl/m68kcoff.em, * emultempl/m68kelf.em,
	* emultempl/nds32elf.em, * emultempl/pe.em, * emultempl/pep.em,
	* ldlang.c, * ldmain.c, * pe-dll.c: Update for bfd.link_next change.

1 files changed, 3 insertions, 3 deletions

diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c
index 1d2250e..66a1999 100644
--- a/bfd/vms-alpha.c
+++ b/bfd/vms-alpha.c
@@ -8652,7 +8652,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
     {
       bfd *startbfd = NULL;
 
-      for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+      for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
         {
           /* Consider only VMS object files.  */
           if (sub->xvec != abfd->xvec)
@@ -8756,7 +8756,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
     dmt = NULL;
 
   /* Read all sections from the inputs.  */
-  for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+  for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
     {
       if (sub->flags & DYNAMIC)
         {
@@ -8807,7 +8807,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
           unsigned int off = 0;
 
           /* For each object file (ie for each module).  */
-          for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+          for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
             {
               asection *sub_dst;
               struct vms_dmt_header *dmth = NULL;