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, 6 insertions, 6 deletions

diff --git a/ld/pe-dll.c b/ld/pe-dll.c
index 0455606..d38f30d 100644
--- a/ld/pe-dll.c
+++ b/ld/pe-dll.c
@@ -654,7 +654,7 @@ process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *
 
   /* First, run around to all the objects looking for the .drectve
      sections, and push those into the def file too.  */
-  for (b = info->input_bfds; b; b = b->link_next)
+  for (b = info->input_bfds; b; b = b->link.next)
     {
       s = bfd_get_section_by_name (b, ".drectve");
       if (s)
@@ -700,7 +700,7 @@ process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *
   if ((pe_dll_export_everything || pe_def_file->num_exports == 0)
       && !pe_dll_exclude_all_symbols)
     {
-      for (b = info->input_bfds; b; b = b->link_next)
+      for (b = info->input_bfds; b; b = b->link.next)
 	{
 	  asymbol **symbols;
 	  int nsyms;
@@ -1267,7 +1267,7 @@ pe_walk_relocs_of_symbol (struct bfd_link_info *info,
   bfd *b;
   asection *s;
 
-  for (b = info->input_bfds; b; b = b->link_next)
+  for (b = info->input_bfds; b; b = b->link.next)
     {
       asymbol **symbols;
 
@@ -1330,7 +1330,7 @@ generate_reloc (bfd *abfd, struct bfd_link_info *info)
   struct bfd_section *s;
 
   total_relocs = 0;
-  for (b = info->input_bfds; b; b = b->link_next)
+  for (b = info->input_bfds; b; b = b->link.next)
     for (s = b->sections; s; s = s->next)
       total_relocs += s->reloc_count;
 
@@ -1338,7 +1338,7 @@ generate_reloc (bfd *abfd, struct bfd_link_info *info)
 
   total_relocs = 0;
   bi = 0;
-  for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next)
+  for (bi = 0, b = info->input_bfds; b; bi++, b = b->link.next)
     {
       arelent **relocs;
       int relsize, nrelocs;
@@ -2726,7 +2726,7 @@ pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_
   ar_head = make_head (outarch);
 
   /* Iterate the input BFDs, looking for exclude-modules-for-implib.  */
-  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
     {
       /* Iterate the exclude list.  */
       struct exclude_list_struct *ex;