Optimize _bfd_elf_allocate_ifunc_dyn_relocs.

2011-01-06  H.J. Lu  <hongjiu.lu@intel.com>

	* elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Optimized.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index afa0a44ff56e18738a656b358d624c9c7b804e46..c2c015708dfa8a487e974438b9f64e5b25247343 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,7 @@
+2011-01-06  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Optimized.
+
 2011-01-06  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR ld/12366

diff --git a/bfd/elf-ifunc.c b/bfd/elf-ifunc.c
index 17b23c2ffc0e7688d1cbde0bd705c276f7cb08e6..81429b84334ca067439f3942e1cfdd1e8b335a08 100644 (file)
--- a/bfd/elf-ifunc.c
+++ b/bfd/elf-ifunc.c
@@ -194,25 +194,20 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
          where it is marked with regular reference, but not non-GOT
         reference.  It may happen if we didn't see STT_GNU_IFUNC
         symbol at the time when checking relocations.  */
-      bfd_size_type count = 0;
-
       if (info->shared
          && !h->non_got_ref
          && h->ref_regular)
-       {
-         for (p = *head; p != NULL; p = p->next)
-           count += p->count;
-         if (count != 0)
-           h->non_got_ref = 1;
-       }
+       for (p = *head; p != NULL; p = p->next)
+         if (p->count)
+           {
+             h->non_got_ref = 1;
+             goto keep;
+           }
 
-      if (count == 0)
-       {
-         h->got = htab->init_got_offset;
-         h->plt = htab->init_plt_offset;
-         *head = NULL;
-         return TRUE;
-       }
+      h->got = htab->init_got_offset;
+      h->plt = htab->init_plt_offset;
+      *head = NULL;
+      return TRUE;
     }
 
   /* Return and discard space for dynamic relocations against it if
@@ -228,6 +223,7 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
       return TRUE;
     }
 
+keep:
   bed = get_elf_backend_data (info->output_bfd);
   if (bed->rela_plts_and_copies_p)
     sizeof_reloc = bed->s->sizeof_rela;
@@ -277,10 +273,20 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
     *head = NULL;
 
   /* Finally, allocate space.  */
-  for (p = *head; p != NULL; p = p->next)
-    htab->irelifunc->size += p->count * sizeof_reloc;
+  p = *head;
+  if (p != NULL)
+    {
+      bfd_size_type count = 0;
+      do
+       {
+         count += p->count;
+         p = p->next;
+       }
+      while (p != NULL);
+      htab->irelifunc->size += count * sizeof_reloc;
+    }
 
-  /* For STT_GNU_IFUNC symbol, .got.plt has the real function addres
+  /* For STT_GNU_IFUNC symbol, .got.plt has the real function address
      and .got has the PLT entry adddress.  We will load the GOT entry
      with the PLT entry in finish_dynamic_symbol if it is used.  For
      branch, it uses .got.plt.  For symbol value,