darwin: handle recent version of dyld

[deliverable/binutils-gdb.git] / gold / symtab.h

diff --git a/gold/symtab.h b/gold/symtab.h
index 689d99f5bf0442479034defe542cb121729f32d8..b06c7b4b18c2dd01b98c01b47cfcf8da6f42ca28 100644 (file)
--- a/gold/symtab.h
+++ b/gold/symtab.h
@@ -1,6 +1,6 @@
 // symtab.h -- the gold symbol table   -*- C++ -*-
 
-// Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+// Copyright (C) 2006-2014 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -259,6 +259,11 @@ class Symbol
   nonvis() const
   { return this->nonvis_; }
 
+  // Set the non-visibility part of the st_other field.
+  void
+  set_nonvis(unsigned int nonvis)
+  { this->nonvis_ = nonvis; }
+
   // Return whether this symbol is a forwarder.  This will never be
   // true of a symbol found in the hash table, but may be true of
   // symbol pointers attached to object files.
@@ -576,8 +581,14 @@ class Symbol
     if (!parameters->options().shared())
       return false;
 
-    // If the user used -Bsymbolic, then nothing is preemptible.
-    if (parameters->options().Bsymbolic())
+    // If the symbol was named in a --dynamic-list script, it is preemptible.
+    if (parameters->options().in_dynamic_list(this->name()))
+      return true;
+
+    // If the user used -Bsymbolic or provided a --dynamic-list script,
+    // then nothing (else) is preemptible.
+    if (parameters->options().Bsymbolic()
+        || parameters->options().have_dynamic_list())
       return false;
 
     // If the user used -Bsymbolic-functions, then functions are not
@@ -638,7 +649,10 @@ class Symbol
     // A TLS-related reference.
     TLS_REF = 4,
     // A reference that can always be treated as a function call.
-    FUNCTION_CALL = 8
+    FUNCTION_CALL = 8,
+    // When set, says that dynamic relocations are needed even if a
+    // symbol has a plt entry.
+    FUNC_DESC_ABI = 16,
   };
 
   // Given a direct absolute or pc-relative static relocation against
@@ -675,7 +689,8 @@ class Symbol
 
     // A reference to any PLT entry in a non-position-independent executable
     // does not need a dynamic relocation.
-    if (!parameters->options().output_is_position_independent()
+    if (!(flags & FUNC_DESC_ABI)
+       && !parameters->options().output_is_position_independent()
         && this->has_plt_offset())
       return false;
 
@@ -817,6 +832,11 @@ class Symbol
   is_predefined() const
   { return this->is_predefined_; }
 
+  // Return true if this is a C++ vtable symbol.
+  bool
+  is_cxx_vtable() const
+  { return is_prefix_of("_ZTV", this->name_); }
+
  protected:
   // Instances of this class should always be created at a specific
   // size.