gdb: add target_ops::supports_displaced_step

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

diff --git a/gold/script.h b/gold/script.h
index 4f2f4fd4d694497a914d96ba43c43828a4aabedb..81e45a2df20df2c30f1837537b9d2790dfeb2738 100644 (file)
--- a/gold/script.h
+++ b/gold/script.h
@@ -1,6 +1,6 @@
 // script.h -- handle linker scripts for gold   -*- C++ -*-
 
-// Copyright (C) 2006-2017 Free Software Foundation, Inc.
+// Copyright (C) 2006-2020 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -129,13 +129,17 @@ class Expression
   virtual uint64_t
   value(const Expression_eval_info*) = 0;
 
+  // Sets all symbols used in expressions as seen in a real ELF object.
+  virtual void
+  set_expr_sym_in_real_elf(Symbol_table*) const
+  { return; }
+
  private:
   // May not be copied.
   Expression(const Expression&);
   Expression& operator=(const Expression&);
 };
 
-
 // Version_script_info stores information parsed from the version
 // script, either provided by --version-script or as part of a linker
 // script.  A single Version_script_info object per target is owned by
@@ -344,6 +348,14 @@ class Symbol_assignment
   void
   finalize(Symbol_table*, const Layout*);
 
+  bool
+  is_defsym() const
+  { return is_defsym_; }
+
+  Expression *
+  value() const
+  { return val_; }
+
   // Finalize the symbol value when it can refer to the dot symbol.
   void
   finalize_with_dot(Symbol_table*, const Layout*, uint64_t dot_value,
@@ -454,6 +466,13 @@ class Script_options
   bool
   define_symbol(const char* definition);
 
+  // Populates the set with symbol names used in LHS of defsym.
+  void
+  find_defsym_defs(Unordered_set<std::string>&);
+
+  // Set symbols used in defsym expressions as seen in a real ELF object.
+  void set_defsym_uses_in_real_elf(Symbol_table*) const;
+
   // Create sections required by any linker scripts.
   void
   create_script_sections(Layout*);