* elf-bfd.h (struct elf_link_local_dynamic_entry): Add init_refcount.

	(struct elf_backend_data): Add can_refcount.
	* elf.c (_bfd_elf_link_hash_newfunc): Get rid of a few casts.  Set
	got.refcount and plt.refcount from init_refcount.
	(_bfd_elf_link_hash_table_init): Set up init_refcount.
	(_bfd_elf_link_hash_copy_indirect): Reference got/plt.refcount
	rather than got/plt.offset, and test for <= 0 rather than -1.
	* elflink.h (size_dynamic_sections): Set init_refcount to -1.
	* elfxx-target.h (elf_backend_can_refcount): Define.
	(elfNN_bed): Init can_refcount.
	* linker.c (_bfd_link_hash_newfunc): Get rid of a few casts.
	(_bfd_generic_link_hash_newfunc): Likewise.
	* elf32-cris.c (cris_elf_check_relocs): Modify for refcounts
	starting from zero.
	(elf_backend_can_refcount): Define.
	* elf32-hppa.c (elf32_hppa_check_relocs): Modify for refcounts
	starting from zero.
	(elf32_hppa_copy_indirect_symbol): Make static to agree with
	prototype.
	(elf_backend_can_refcount): Define.
	* elf32-i386.c (elf_i386_check_relocs): Modify for refcounts
	starting from zero.
	(allocate_dynrelocs): Set plt/got.offset rather than *.refcount.
	(elf_i386_finish_dynamic_symbol): Expand SHN_UNDEF comment.
	(elf_i386_finish_dynamic_sections): Use local var so line < 80 chars.
	(elf_backend_can_refcount): Define.
	(elf_i386_copy_indirect_symbol): Make static to agree with
	prototype.  Formatting fix.
	* elf32-m68k.c (elf_m68k_check_relocs): Modify for refcounts
	starting from zero.
	(elf_backend_can_refcount): Define.
	* elf32-ppc.c (ppc_elf_check_relocs): Modify for refcounts
	starting from zero.
	(elf_backend_can_refcount): Define.
	* elf32-s390.c (elf_s390_check_relocs): Modify for refcounts
	starting from zero.
	(elf_backend_can_refcount): Define.
	* elf64-s390.c (elf_s390_check_relocs): Modify for refcounts
	starting from zero.
	(elf_backend_can_refcount): Define.
	* elf64-x86-64.c (elf64_x86_64_check_relocs): Modify for refcounts
	starting from zero.
	(elf_backend_can_refcount): Define.

1 files changed, 8 insertions, 20 deletions

diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c
index 02a436f..aeba855 100644
--- a/bfd/elf64-s390.c
+++ b/bfd/elf64-s390.c
@@ -541,10 +541,8 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
 
 	  if (h != NULL)
 	    {
-	      if (h->got.refcount == -1)
+	      if (h->got.refcount == 0)
 		{
-		  h->got.refcount = 1;
-
 		  /* Make sure this symbol is output as a dynamic symbol.  */
 		  if (h->dynindx == -1)
 		    {
@@ -555,8 +553,7 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
 		  sgot->_raw_size += 8;
 		  srelgot->_raw_size += sizeof (Elf64_External_Rela);
 		}
-	      else
-		h->got.refcount += 1;
+	      h->got.refcount += 1;
 	    }
 	  else
 	    {
@@ -567,16 +564,13 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
 
 		  size = symtab_hdr->sh_info * sizeof (bfd_vma);
 		  local_got_refcounts = ((bfd_signed_vma *)
-					 bfd_alloc (abfd, size));
+					 bfd_zalloc (abfd, size));
 		  if (local_got_refcounts == NULL)
 		    return false;
 		  elf_local_got_refcounts (abfd) = local_got_refcounts;
-		  memset (local_got_refcounts, -1, (size_t) size);
 		}
-	      if (local_got_refcounts[r_symndx] == -1)
+	      if (local_got_refcounts[r_symndx] == 0)
 		{
-		  local_got_refcounts[r_symndx] = 1;
-
 		  sgot->_raw_size += 8;
 		  if (info->shared)
 		    {
@@ -586,9 +580,7 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
 		      srelgot->_raw_size += sizeof (Elf64_External_Rela);
 		    }
 		}
-	      else
-		local_got_refcounts[r_symndx] += 1;
-
+	      local_got_refcounts[r_symndx] += 1;
 	    }
 	  break;
 
@@ -608,13 +600,8 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
 	  if (h == NULL)
 	    continue;
 
-	  if (h->plt.refcount == -1)
-	    {
-	      h->plt.refcount = 1;
-	      h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
-	    }
-	  else
-	    h->plt.refcount += 1;
+	  h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+	  h->plt.refcount += 1;
 	  break;
 
         case R_390_8:
@@ -2162,6 +2149,7 @@ const struct elf_size_info s390_elf64_size_info =
 #define elf_backend_size_info		s390_elf64_size_info
 
 #define elf_backend_can_gc_sections	1
+#define elf_backend_can_refcount	1
 #define elf_backend_want_got_plt	1
 #define elf_backend_plt_readonly	1
 #define elf_backend_want_plt_sym	0