Alpha DT_RELA

	* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Only emit
	DT_RELA, DT_RELASZ, and DT_RELAENT when DT_RELASZ is non-zero.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 3e90624353e1272a09d0d8cd8d9dfcbf2bc26b78..ac3f160b0781b018767011116137dccaad0710eb 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2017-02-21  Alan Modra  <amodra@gmail.com>
+
+       * elf64-alpha.c (elf64_alpha_size_dynamic_sections): Only emit
+       DT_RELA, DT_RELASZ, and DT_RELAENT when DT_RELASZ is non-zero.
+
 2017-02-20  Alan Modra  <amodra@gmail.com>
 
        PR 21181

diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c
index b4a50f4e7773a657679ba8375cce3bde4fa73901..43c6ed8d3d0b8290bc13ba8099ecf238c0b5c511 100644 (file)
--- a/bfd/elf64-alpha.c
+++ b/bfd/elf64-alpha.c
@@ -2879,7 +2879,7 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
 {
   bfd *dynobj;
   asection *s;
-  bfd_boolean relplt;
+  bfd_boolean relplt, relocs;
   struct alpha_elf_link_hash_table * htab;
 
   htab = alpha_elf_hash_table (info);
@@ -2916,6 +2916,7 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
      determined the sizes of the various dynamic sections.  Allocate
      memory for them.  */
   relplt = FALSE;
+  relocs = FALSE;
   for (s = dynobj->sections; s != NULL; s = s->next)
     {
       const char *name;
@@ -2933,6 +2934,8 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
            {
              if (strcmp (name, ".rela.plt") == 0)
                relplt = TRUE;
+             else
+               relocs = TRUE;
 
              /* We use the reloc_count field as a counter if we need
                 to copy relocs into the output file.  */
@@ -2997,15 +3000,18 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
            return FALSE;
        }
 
-      if (!add_dynamic_entry (DT_RELA, 0)
-         || !add_dynamic_entry (DT_RELASZ, 0)
-         || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
-       return FALSE;
-
-      if (info->flags & DF_TEXTREL)
+      if (relocs)
        {
-         if (!add_dynamic_entry (DT_TEXTREL, 0))
+         if (!add_dynamic_entry (DT_RELA, 0)
+             || !add_dynamic_entry (DT_RELASZ, 0)
+             || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
            return FALSE;
+
+         if (info->flags & DF_TEXTREL)
+           {
+             if (!add_dynamic_entry (DT_TEXTREL, 0))
+               return FALSE;
+           }
        }
     }
 #undef add_dynamic_entry