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// script-sections.h -- linker script SECTIONS for gold -*- C++ -*-
// Copyright 2008 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.
// This is for the support of the SECTIONS clause in linker scripts.
#ifndef GOLD_SCRIPT_SECTIONS_H
#define GOLD_SCRIPT_SECTIONS_H
#include <cstdio>
#include <vector>
namespace gold
{
struct Parser_output_section_header;
struct Parser_output_section_trailer;
struct Input_section_spec;
class Expression;
class Sections_element;
class Output_section_definition;
class Script_sections
{
public:
Script_sections();
// Start a SECTIONS clause.
void
start_sections();
// Finish a SECTIONS clause.
void
finish_sections();
// Return whether we ever saw a SECTIONS clause. If we did, then
// all section layout needs to go through this class.
bool
saw_sections_clause() const
{ return this->saw_sections_clause_; }
// Return whether we are currently processing a SECTIONS clause.
bool
in_sections_clause() const
{ return this->in_sections_clause_; }
// Start processing entries for an output section.
void
start_output_section(const char* name, size_t namelen,
const Parser_output_section_header*);
// Finish processing entries for an output section.
void
finish_output_section(const Parser_output_section_trailer*);
// Add a data item to the current output section.
void
add_data(int size, bool is_signed, Expression* val);
// Add a symbol to be defined.
void
add_symbol_assignment(const char* name, size_t length, Expression* value,
bool provide, bool hidden);
// Add an assertion.
void
add_assertion(Expression* check, const char* message, size_t messagelen);
// Add a setting for the fill value.
void
add_fill(Expression* val);
// Add an input section specification.
void
add_input_section(const Input_section_spec* spec, bool keep);
// Print the contents to the FILE. This is for debugging.
void
print(FILE*) const;
private:
typedef std::vector<Sections_element*> Sections_elements;
// True if we ever saw a SECTIONS clause.
bool saw_sections_clause_;
// True if we are currently processing a SECTIONS clause.
bool in_sections_clause_;
// The list of elements in the SECTIONS clause.
Sections_elements* sections_elements_;
// The current output section, if there is one.
Output_section_definition* output_section_;
};
} // End namespace gold.
#endif // !defined(GOLD_SCRIPT_SECTIONS_H
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