Support 64-bit entry size in SHT_HASH (for s390).

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

diff --git a/gold/target.h b/gold/target.h
index 8dabc281ef58abc9b0c4a3ce33e4fc8fe60b8829..db093b7fe0011d717ad8200cf438bde8a2a13662 100644 (file)
--- a/gold/target.h
+++ b/gold/target.h
@@ -1,6 +1,6 @@
 // target.h -- target support for gold   -*- C++ -*-
 
-// Copyright (C) 2006-2014 Free Software Foundation, Inc.
+// Copyright (C) 2006-2015 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -36,6 +36,7 @@
 #include "elfcpp.h"
 #include "options.h"
 #include "parameters.h"
+#include "stringpool.h"
 #include "debug.h"
 
 namespace gold
@@ -61,6 +62,7 @@ class Output_section;
 class Input_objects;
 class Task;
 struct Symbol_location;
+class Versions;
 
 // The abstract class for target specific handling.
 
@@ -453,6 +455,41 @@ class Target
   entry_symbol_name() const
   { return this->pti_->entry_symbol_name; }
 
+  // Return the size in bits of SHT_HASH entry.
+  int
+  hash_entry_size() const
+  { return this->pti_->hash_entry_size; }
+
+  // Whether the target has a custom set_dynsym_indexes method.
+  bool
+  has_custom_set_dynsym_indexes() const
+  { return this->do_has_custom_set_dynsym_indexes(); }
+
+  // Custom set_dynsym_indexes method for a target.
+  unsigned int
+  set_dynsym_indexes(std::vector<Symbol*>* dyn_symbols, unsigned int index,
+                     std::vector<Symbol*>* syms, Stringpool* dynpool,
+                     Versions* versions, Symbol_table* symtab) const
+  {
+    return this->do_set_dynsym_indexes(dyn_symbols, index, syms, dynpool,
+                                       versions, symtab);
+  }
+
+  // Get the custom dynamic tag value.
+  unsigned int
+  dynamic_tag_custom_value(elfcpp::DT tag) const
+  { return this->do_dynamic_tag_custom_value(tag); }
+
+  // Adjust the value written to the dynamic symbol table.
+  void
+  adjust_dyn_symbol(const Symbol* sym, unsigned char* view) const
+  { this->do_adjust_dyn_symbol(sym, view); }
+
+  // Return whether to include the section in the link.
+  bool
+  should_include_section(elfcpp::Elf_Word sh_type) const
+  { return this->do_should_include_section(sh_type); }
+
  protected:
   // This struct holds the constant information for a child class.  We
   // use a struct to avoid the overhead of virtual function calls for
@@ -508,6 +545,9 @@ class Target
     const char* attributes_vendor;
     // Name of the main entry point to the program.
     const char* entry_symbol_name;
+    // Size (in bits) of SHT_HASH entry. Always equal to 32, except for
+    // 64-bit S/390.
+    const int hash_entry_size;
   };
 
   Target(const Target_info* pti)
@@ -724,6 +764,33 @@ class Target
   do_gc_mark_symbol(Symbol_table*, Symbol*) const
   { }
 
+  // This may be overridden by the child class.
+  virtual bool
+  do_has_custom_set_dynsym_indexes() const
+  { return false; }
+
+  // This may be overridden by the child class.
+  virtual unsigned int
+  do_set_dynsym_indexes(std::vector<Symbol*>*, unsigned int,
+                        std::vector<Symbol*>*, Stringpool*, Versions*,
+                        Symbol_table*) const
+  { gold_unreachable(); }
+
+  // This may be overridden by the child class.
+  virtual unsigned int
+  do_dynamic_tag_custom_value(elfcpp::DT) const
+  { gold_unreachable(); }
+
+  // This may be overridden by the child class.
+  virtual void
+  do_adjust_dyn_symbol(const Symbol*, unsigned char*) const
+  { }
+
+  // This may be overridden by the child class.
+  virtual bool
+  do_should_include_section(elfcpp::Elf_Word) const
+  { return true; }
+
  private:
   // The implementations of the four do_make_elf_object virtual functions are
   // almost identical except for their sizes and endianness.  We use a template.
@@ -997,9 +1064,9 @@ class Sized_target : public Target
   // and DST_OFF.
   void
   gc_add_reference(Symbol_table* symtab,
-                  Object* src_obj,
+                  Relobj* src_obj,
                   unsigned int src_shndx,
-                  Object* dst_obj,
+                  Relobj* dst_obj,
                   unsigned int dst_shndx,
                   typename elfcpp::Elf_types<size>::Elf_Addr dst_off) const
   {
@@ -1021,8 +1088,8 @@ class Sized_target : public Target
 
   // Handle target specific gc actions when adding a gc reference.
   virtual void
-  do_gc_add_reference(Symbol_table*, Object*, unsigned int,
-                     Object*, unsigned int,
+  do_gc_add_reference(Symbol_table*, Relobj*, unsigned int,
+                     Relobj*, unsigned int,
                      typename elfcpp::Elf_types<size>::Elf_Addr) const
   { }