gold/parameters.h

   1 // parameters.h -- general parameters for a link using gold  -*- C++ -*-
   2
   3 #ifndef GOLD_PARAMETERS_H
   4 #define GOLD_PARAMETERS_H
   5
   6 namespace gold
   7 {
   8
   9 class General_options;
  10
  11 // Here we define the Parameters class which simply holds simple
  12 // general parameters which apply to the entire link.  We use a global
  13 // variable for this.  This is in contrast to the General_options
  14 // class, which holds the complete state of position independent
  15 // command line options.  The hope is that Parameters will stay fairly
  16 // simple, so that if this turns into a library it will be clear how
  17 // these parameters should be set.
  18
  19 class Parameters
  20 {
  21  public:
  22   Parameters(const General_options*);
  23
  24   // Whether we are generating a regular executable.
  25   bool
  26   output_is_executable() const
  27   { return this->output_file_type_ == OUTPUT_EXECUTABLE; }
  28
  29   // Whether we are generating a shared library.
  30   bool
  31   output_is_shared() const
  32   { return this->output_file_type_ == OUTPUT_SHARED; }
  33
  34   // Whether we are generating an object file.
  35   bool
  36   output_is_object() const
  37   { return this->output_file_type_ == OUTPUT_OBJECT; }
  38
  39   // The general linker optimization level.
  40   int
  41   optimization_level() const
  42   { return this->optimization_level_; }
  43
  44  private:
  45   // The types of output files.
  46   enum Output_file_type
  47     {
  48       // Generating executable.
  49       OUTPUT_EXECUTABLE,
  50       // Generating shared library.
  51       OUTPUT_SHARED,
  52       // Generating object file.
  53       OUTPUT_OBJECT
  54     };
  55
  56   // The type of the output file.
  57   Output_file_type output_file_type_;
  58   // The optimization level.
  59   int optimization_level_;
  60 };
  61
  62 // This is a global variable.
  63 extern const Parameters* parameters;
  64
  65 // Initialize the global variable.
  66 extern void initialize_parameters(const General_options*);
  67
  68 } // End namespace gold.
  69
  70 #endif // !defined(GOLD_PARAMATERS_H)