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, 4 insertions, 4 deletions

diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 344845d..bc793d7 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -2629,7 +2629,7 @@ ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
   apuinfo_list_init ();
 
   /* Read in the input sections contents.  */
-  for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
+  for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
     {
       unsigned long datum;
 
@@ -4828,7 +4828,7 @@ ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
 	     --secure-plt and we never see REL16 relocs.  */
 	  if (plt_type == PLT_UNSET)
 	    plt_type = PLT_OLD;
-	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
 	    if (is_ppc_elf (ibfd))
 	      {
 		if (ppc_elf_tdata (ibfd)->has_rel16)
@@ -5197,7 +5197,7 @@ ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
      notify relocate_section that optimization can be done, and
      adjust got and plt refcounts.  */
   for (pass = 0; pass < 2; ++pass)
-    for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+    for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
       {
 	Elf_Internal_Sym *locsyms = NULL;
 	Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
@@ -6130,7 +6130,7 @@ ppc_elf_size_dynamic_sections (bfd *output_bfd,
 
   /* Set up .got offsets for local syms, and space for local dynamic
      relocs.  */
-  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
     {
       bfd_signed_vma *local_got;
       bfd_signed_vma *end_local_got;