X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gold%2Fsymtab.h;h=5cee458f1a20f89749df976d522968f356b76cf0;hb=945e0f82dad31db89a107b496532886fe215c011;hp=b6366d4c9d2747529862e8e2930e002d1a61ae85;hpb=d1bddd3c4b9c17736bf6c59aa336670a589ca844;p=deliverable%2Fbinutils-gdb.git

diff --git a/gold/symtab.h b/gold/symtab.h
index b6366d4c9d..5cee458f1a 100644
--- a/gold/symtab.h
+++ b/gold/symtab.h
@@ -1,6 +1,6 @@
 // symtab.h -- the gold symbol table   -*- C++ -*-
 
-// Copyright (C) 2006-2014 Free Software Foundation, Inc.
+// Copyright (C) 2006-2016 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -140,6 +140,11 @@ class Symbol
   set_is_default()
   { this->is_def_ = true; }
 
+  // Set that this version is not the default for this symbol name.
+  void
+  set_is_not_default()
+  { this->is_def_ = false; }
+
   // Return the symbol's name as name@version (or name@@version).
   std::string
   versioned_name() const;
@@ -215,6 +220,11 @@ class Symbol
   type() const
   { return this->type_; }
 
+  // Set the symbol type.
+  void
+  set_type(elfcpp::STT type)
+  { this->type_ = type; }
+
   // Return true for function symbol.
   bool
   is_func() const
@@ -521,7 +531,8 @@ class Symbol
   {
     return (this->is_undefined()
 	    && (this->binding() == elfcpp::STB_WEAK
-		|| this->is_undef_binding_weak()));
+		|| this->is_undef_binding_weak()
+		|| parameters->options().weak_unresolved_symbols()));
   }
 
   // Return whether this is a strong undefined symbol.
@@ -530,7 +541,8 @@ class Symbol
   {
     return (this->is_undefined()
 	    && this->binding() != elfcpp::STB_WEAK
-	    && !this->is_undef_binding_weak());
+	    && !this->is_undef_binding_weak()
+	    && !parameters->options().weak_unresolved_symbols());
   }
 
   // Return whether this is an absolute symbol.
@@ -550,8 +562,6 @@ class Symbol
   {
     if (this->source_ != FROM_OBJECT)
       return false;
-    if (this->type_ == elfcpp::STT_COMMON)
-      return true;
     bool is_ordinary;
     unsigned int shndx = this->shndx(&is_ordinary);
     return !is_ordinary && Symbol::is_common_shndx(shndx);
@@ -599,10 +609,8 @@ class Symbol
     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())
+    // If the user used -Bsymbolic, then nothing (else) is preemptible.
+    if (parameters->options().Bsymbolic())
       return false;
 
     // If the user used -Bsymbolic-functions, then functions are not
@@ -847,8 +855,7 @@ class Symbol
   bool
   may_need_copy_reloc() const
   {
-    return (!parameters->options().output_is_position_independent()
-	    && parameters->options().copyreloc()
+    return (parameters->options().copyreloc()
 	    && this->is_from_dynobj()
 	    && !this->is_func());
   }
@@ -1106,8 +1113,8 @@ class Sized_symbol : public Symbol
 
   // Initialize fields for an undefined symbol.
   void
-  init_undefined(const char* name, const char* version, elfcpp::STT,
-		 elfcpp::STB, elfcpp::STV, unsigned char nonvis);
+  init_undefined(const char* name, const char* version, Value_type value,
+		 elfcpp::STT, elfcpp::STB, elfcpp::STV, unsigned char nonvis);
 
   // Override existing symbol.
   template<bool big_endian>
@@ -1368,7 +1375,7 @@ class Symbol_table
  
   // Returns true if ICF determined that this is a duplicate section. 
   bool
-  is_section_folded(Object* obj, unsigned int shndx) const;
+  is_section_folded(Relobj* obj, unsigned int shndx) const;
 
   void
   set_gc(Garbage_collection* gc)
@@ -1474,6 +1481,12 @@ class Symbol_table
   define_symbols(const Layout*, int count, const Define_symbol_in_segment*,
 		 bool only_if_ref);
 
+  // Add a target-specific global symbol.
+  // (Used by SPARC backend to add STT_SPARC_REGISTER symbols.)
+  void
+  add_target_global_symbol(Symbol* sym)
+  { this->target_symbols_.push_back(sym); }
+
   // Define SYM using a COPY reloc.  POSD is the Output_data where the
   // symbol should be defined--typically a .dyn.bss section.  VALUE is
   // the offset within POSD.
@@ -1704,7 +1717,8 @@ class Symbol_table
 	  const elfcpp::Sym<size, big_endian>& sym,
 	  unsigned int st_shndx, bool is_ordinary,
 	  unsigned int orig_st_shndx,
-	  Object*, const char* version);
+	  Object*, const char* version,
+	  bool is_default_version);
 
   template<int size, bool big_endian>
   void
@@ -1723,7 +1737,7 @@ class Symbol_table
   // resolve.cc.
   static bool
   should_override(const Symbol*, unsigned int, elfcpp::STT, Defined,
-		  Object*, bool*, bool*);
+		  Object*, bool*, bool*, bool);
 
   // Report a problem in symbol resolution.
   static void
@@ -1943,6 +1957,8 @@ class Symbol_table
   const Version_script_info& version_script_;
   Garbage_collection* gc_;
   Icf* icf_;
+  // Target-specific symbols, if any.
+  std::vector<Symbol*> target_symbols_;
 };
 
 // We inline get_sized_symbol for efficiency.