2000-05-03 Martin v. Löwis <loewis@informatik.hu-berlin.de>

	* elflink.h (elf_link_add_object_symbols): Reset dynindx for
	hidden and internal symbols.
	(elf_fix_symbol_flags): Clear NEEDS_PLT for symbols with
	visibility.
	* elflink.c (_bfd_elf_link_record_dynamic_symbol): Do not
	assign a PLT or GOT entry to symbols with hidden and
	internal visibility.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 31db2ae..1d2e135 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+2000-05-03  Martin v. Löwis  <loewis@informatik.hu-berlin.de>
+
+       * elflink.h (elf_link_add_object_symbols): Reset dynindx for
+       hidden and internal symbols.
+       (elf_fix_symbol_flags): Clear NEEDS_PLT for symbols with
+       visibility.
+       * elflink.c (_bfd_elf_link_record_dynamic_symbol): Do not
+       assign a PLT or GOT entry to symbols with hidden and
+       internal visibility.
+
 2000-05-03  Mark Elbrecht  <snowball3@bigfoot.com>
 
        * bfd/coff-go32.c (COFF_SECTION_ALIGNMENT_ENTRIES): Add entry for

diff --git a/bfd/elflink.c b/bfd/elflink.c
index 6534d84..1b1548a 100644 (file)
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -238,8 +238,8 @@ _bfd_elf_link_record_dynamic_symbol (info, h)
            }
          
          h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
-         break;
-         
+         return true;
+
        default:
          break;
        }

diff --git a/bfd/elflink.h b/bfd/elflink.h
index b5e4eee..16f2f98 100644 (file)
--- a/bfd/elflink.h
+++ b/bfd/elflink.h
@@ -891,6 +891,7 @@ elf_link_add_object_symbols (abfd, info)
   Elf_External_Sym *esym;
   Elf_External_Sym *esymend;
   struct elf_backend_data *bed;
+  boolean visibility_changed = false;
 
   bed = get_elf_backend_data (abfd);
   add_symbol_hook = bed->elf_add_symbol_hook;
@@ -1581,7 +1582,10 @@ elf_link_add_object_symbols (abfd, info)
              unsigned char symvis = ELF_ST_VISIBILITY (sym.st_other);
              
              if (symvis && (hvis > symvis || hvis == 0))
-               h->other = sym.st_other;
+               {
+                 visibility_changed = true;
+                 h->other = sym.st_other;
+               }
              
              /* If neither has visibility, use the st_other of the
                 definition.  This is an arbitrary choice, since the
@@ -1852,6 +1856,18 @@ elf_link_add_object_symbols (abfd, info)
                    goto error_return;
                }
            }
+         else if (dynsym && h->dynindx != -1 && visibility_changed)
+           /* If the symbol already has a dynamic index, but
+              visibility says it should not be visible, turn it into
+              a local symbol.  */
+           switch (ELF_ST_VISIBILITY (h->other))
+             {
+             case STV_INTERNAL:
+             case STV_HIDDEN:  
+               h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
+               (*bed->elf_backend_hide_symbol) (h);
+               break;
+             }
        }
     }
 
@@ -3339,10 +3355,12 @@ elf_fix_symbol_flags (h, eif)
   /* If -Bsymbolic was used (which means to bind references to global
      symbols to the definition within the shared object), and this
      symbol was defined in a regular object, then it actually doesn't
-     need a PLT entry.  */
+     need a PLT entry.  Likewise, if the symbol has any kind of
+     visibility (internal, hidden, or protected), it doesn't need a
+     PLT.  */
   if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
       && eif->info->shared
-      && eif->info->symbolic
+      && (eif->info->symbolic || ELF_ST_VISIBILITY (h->other))
       && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
     {
       h->elf_link_hash_flags &=~ ELF_LINK_HASH_NEEDS_PLT;