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// options.h -- handle command line options for gold -*- C++ -*-
// Command_line
// Holds everything we get from the command line.
// General_options (from Command_line::options())
// Options which are not position dependent.
// Input_argument (from Command_line::inputs())
// The list of input files, including -l options.
// Position_dependent_options (from Input_argument::options())
// Position dependent options which apply to this argument.
#ifndef GOLD_OPTIONS_H
#define GOLD_OPTIONS_H
#include <list>
#include "gold.h"
namespace gold
{
class Command_line;
namespace options {
class Command_line_options;
struct One_option;
} // End namespace gold::options.
// The position independent options which apply to the whole link.
// There are a lot of them.
class General_options
{
public:
General_options();
// -L: Library search path.
typedef std::list<const char*> Dir_list;
const Dir_list&
search_path() const
{ return this->search_path_; }
// -r: Whether we are doing a relocatable link.
bool
is_relocatable() const
{ return this->is_relocatable_; }
// --static: Whether doing a static link.
bool
is_static() const
{ return this->is_static_; }
private:
friend class Command_line;
friend class options::Command_line_options;
void
add_to_search_path(const char* arg)
{ this->search_path_.push_back(arg); }
void
set_relocatable()
{ this->is_relocatable_ = true; }
void
set_static()
{ this->is_static_ = true; }
Dir_list search_path_;
bool is_relocatable_;
bool is_static_;
// Don't copy this structure.
General_options(const General_options&);
General_options& operator=(const General_options&);
};
// The current state of the position dependent options.
class Position_dependent_options
{
public:
Position_dependent_options();
// -Bstatic: Whether we are searching for a static archive rather
// -than a shared object.
bool
do_static_search()
{ return this->do_static_search_; }
private:
friend class Command_line;
friend class options::Command_line_options;
void
set_static_search()
{ this->do_static_search_ = true; }
void
set_dynamic_search()
{ this->do_static_search_ = false; }
bool do_static_search_;
};
// A single file or library argument from the command line.
class Input_argument
{
public:
Input_argument(const char* name, const Position_dependent_options& options)
: name_(name), options_(options)
{ }
const char*
name() const
{ return this->name_; }
const Position_dependent_options&
options() const
{ return this->options_; }
bool
is_lib() const
{ return this->name_[0] == '-' && this->name_[1] == 'l'; }
const char*
lib_basename() const
{ return this->name_ + 2; }
private:
const char* name_;
Position_dependent_options options_;
};
// All the information read from the command line.
class Command_line
{
public:
Command_line();
// Process the command line options. This will exit with an
// appropriate error message if an unrecognized option is seen.
void
process(int argc, char** argv);
const General_options&
options() const
{ return this->options_; }
typedef std::list<Input_argument> Input_argument_list;
const Input_argument_list&
inputs() const
{ return this->inputs_; }
private:
void usage() ATTRIBUTE_NORETURN;
void usage(const char* msg, const char* opt) ATTRIBUTE_NORETURN;
void usage(const char* msg, char opt) ATTRIBUTE_NORETURN;
void apply_option(const gold::options::One_option&, const char*);
General_options options_;
Position_dependent_options position_options_;
Input_argument_list inputs_;
};
} // End namespace gold.
#endif // !defined(GOLD_OPTIONS_H)
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