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