* sunos.c (SUNOS_CONSTRUCTOR): Define.

	(sunos_add_one_symbol): Don't let a symbol from a dynamic object
	override a constructor symbol.  Set SUNOS_CONSTRUCTOR when
	appropriate.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index ceaefd3..a99d863 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -5,6 +5,11 @@ Tue Feb 20 16:22:44 1996  J.T. Conklin  <jtc@rtl.cygnus.com>
 
 Tue Feb 20 16:50:02 1996  Ian Lance Taylor  <ian@cygnus.com>
 
+       * sunos.c (SUNOS_CONSTRUCTOR): Define.
+       (sunos_add_one_symbol): Don't let a symbol from a dynamic object
+       override a constructor symbol.  Set SUNOS_CONSTRUCTOR when
+       appropriate.
+
        * bout.c (b_out_squirt_out_relocs): Use udata.i rather than flags
        to get the symbol index, matching 14 Jul 95 change.
 

diff --git a/bfd/sunos.c b/bfd/sunos.c
index e0c7a88..d0b8797 100644 (file)
--- a/bfd/sunos.c
+++ b/bfd/sunos.c
@@ -1,5 +1,5 @@
 /* BFD backend for SunOS binaries.
-   Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
+   Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
    Written by Cygnus Support.
 
 This file is part of BFD, the Binary File Descriptor library.
@@ -620,9 +620,11 @@ struct sunos_link_hash_entry
   /* Symbol is defined by a regular object.  */
 #define SUNOS_DEF_REGULAR 02
   /* Symbol is referenced by a dynamic object.  */
-#define SUNOS_REF_DYNAMIC 010
+#define SUNOS_REF_DYNAMIC 04
   /* Symbol is defined by a dynamic object.  */
-#define SUNOS_DEF_DYNAMIC 020
+#define SUNOS_DEF_DYNAMIC 010
+  /* Symbol is a constructor symbol in a regular object.  */
+#define SUNOS_CONSTRUCTOR 020
 };
 
 /* The SunOS linker hash table.  */
@@ -1077,6 +1079,29 @@ sunos_add_one_symbol (info, abfd, name, flags, section, value, string,
        }
     }
 
+  if ((abfd->flags & DYNAMIC) != 0
+      && abfd->xvec == info->hash->creator
+      && (h->flags & SUNOS_CONSTRUCTOR) != 0)
+    {
+      /* The existing symbol is a constructor symbol, and this symbol
+         is from a dynamic object.  A constructor symbol is actually a
+         definition, although the type will be bfd_link_hash_undefined
+         at this point.  We want to ignore the definition from the
+         dynamic object.  */
+      section = bfd_und_section_ptr;
+    }
+  else if ((flags & BSF_CONSTRUCTOR) != 0
+          && (abfd->flags & DYNAMIC) == 0
+          && h->root.root.type == bfd_link_hash_defined
+          && h->root.root.u.def.section->owner != NULL
+          && (h->root.root.u.def.section->owner->flags & DYNAMIC) != 0)
+    {
+      /* The existing symbol is defined by a dynamic object, and this
+         is a constructor symbol.  As above, we want to force the use
+         of the constructor symbol from the regular object.  */
+      h->root.root.type = bfd_link_hash_new;
+    }
+
   /* Do the usual procedure for adding a symbol.  */
   if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
                                          value, string, copy, collect,
@@ -1112,6 +1137,10 @@ sunos_add_one_symbol (info, abfd, name, flags, section, value, string,
          ++sunos_hash_table (info)->dynsymcount;
          h->dynindx = -2;
        }
+
+      if ((flags & BSF_CONSTRUCTOR) != 0
+         && (abfd->flags & DYNAMIC) == 0)
+       h->flags |= SUNOS_CONSTRUCTOR;
     }
 
   return true;