// output.h -- manage the output file for gold -*- C++ -*-
+// Copyright 2006, 2007 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.
+
#ifndef GOLD_OUTPUT_H
#define GOLD_OUTPUT_H
#include "elfcpp.h"
#include "layout.h"
#include "reloc-types.h"
+#include "parameters.h"
namespace gold
{
class Output_section_headers : public Output_data
{
public:
- Output_section_headers(int size,
- bool big_endian,
- const Layout*,
+ Output_section_headers(const Layout*,
const Layout::Segment_list*,
const Layout::Section_list*,
const Stringpool*);
// Return the required alignment.
uint64_t
do_addralign() const
- { return Output_data::default_alignment(this->size_); }
+ { return Output_data::default_alignment(parameters->get_size()); }
private:
// Write the data to the file with the right size and endianness.
void
do_sized_write(Output_file*);
- int size_;
- bool big_endian_;
const Layout* layout_;
const Layout::Segment_list* segment_list_;
const Layout::Section_list* unattached_section_list_;
class Output_segment_headers : public Output_data
{
public:
- Output_segment_headers(int size, bool big_endian,
- const Layout::Segment_list& segment_list);
+ Output_segment_headers(const Layout::Segment_list& segment_list);
// Write the data to the file.
void
// Return the required alignment.
uint64_t
do_addralign() const
- { return Output_data::default_alignment(this->size_); }
+ { return Output_data::default_alignment(parameters->get_size()); }
private:
// Write the data to the file with the right size and endianness.
void
do_sized_write(Output_file*);
- int size_;
- bool big_endian_;
const Layout::Segment_list& segment_list_;
};
class Output_file_header : public Output_data
{
public:
- Output_file_header(int size,
- bool big_endian,
- const General_options&,
- const Target*,
+ Output_file_header(const Target*,
const Symbol_table*,
const Output_segment_headers*);
// Return the required alignment.
uint64_t
do_addralign() const
- { return Output_data::default_alignment(this->size_); }
+ { return Output_data::default_alignment(parameters->get_size()); }
// Set the address and offset--we only implement this for error
// checking.
void
do_sized_write(Output_file*);
- int size_;
- bool big_endian_;
- const General_options& options_;
const Target* target_;
const Symbol_table* symtab_;
const Output_segment_headers* segment_header_;
public:
typedef typename elfcpp::Elf_types<size>::Elf_Addr Valtype;
- Output_data_got(const General_options* options)
- : Output_section_data(Output_data::default_alignment(size)),
- options_(options), entries_()
+ Output_data_got()
+ : Output_section_data(Output_data::default_alignment(size)), entries_()
{ }
// Add an entry for a global symbol to the GOT. Return true if this
// Write the GOT entry to an output view.
void
- write(const General_options*, unsigned char* pov) const;
+ write(unsigned char* pov) const;
private:
enum
set_got_size()
{ this->set_data_size(this->got_offset(this->entries_.size())); }
- // Options.
- const General_options* options_;
// The list of GOT entries.
Got_entries entries_;
};
class Output_data_dynamic : public Output_section_data
{
public:
- Output_data_dynamic(const Target* target, Stringpool* pool)
- : Output_section_data(Output_data::default_alignment(target->get_size())),
- target_(target), entries_(), pool_(pool)
+ Output_data_dynamic(Stringpool* pool)
+ : Output_section_data(Output_data::default_alignment(
+ parameters->get_size())),
+ entries_(), pool_(pool)
{ }
// Add a new dynamic entry with a fixed numeric value.
// The type of the list of entries.
typedef std::vector<Dynamic_entry> Dynamic_entries;
- // The target.
- const Target* target_;
// The entries.
Dynamic_entries entries_;
// The pool used for strings.
typedef std::vector<Input_section> Input_section_list;
+ // Fill data. This is used to fill in data between input sections.
+ // When we have to keep track of the input sections, we can use an
+ // Output_data_const, but we don't want to have to keep track of
+ // input sections just to implement fills. For a fill we record the
+ // offset, and the actual data to be written out.
+ class Fill
+ {
+ public:
+ Fill(off_t section_offset, off_t length)
+ : section_offset_(section_offset), length_(length)
+ { }
+
+ // Return section offset.
+ off_t
+ section_offset() const
+ { return this->section_offset_; }
+
+ // Return fill length.
+ off_t
+ length() const
+ { return this->length_; }
+
+ private:
+ // The offset within the output section.
+ off_t section_offset_;
+ // The length of the space to fill.
+ off_t length_;
+ };
+
+ typedef std::vector<Fill> Fill_list;
+
// Add a new output section by Input_section.
void
add_output_section_data(Input_section*);
Input_section_list input_sections_;
// The offset of the first entry in input_sections_.
off_t first_input_offset_;
+ // The fill data. This is separate from input_sections_ because we
+ // often will need fill sections without needing to keep track of
+ // input sections.
+ Fill_list fills_;
// Whether this output section needs a STT_SECTION symbol in the
// normal symbol table. This will be true if there is a relocation
// which needs it.
uint64_t
set_section_addresses(uint64_t addr, off_t* poff, unsigned int* pshndx);
+ // Set the minimum alignment of this segment. This may be adjusted
+ // upward based on the section alignments.
+ void
+ set_minimum_addralign(uint64_t align)
+ {
+ gold_assert(!this->is_align_known_);
+ this->align_ = align;
+ }
+
// Set the offset of this segment based on the section. This should
// only be called for a non-PT_LOAD segment.
void
uint64_t paddr_;
// The size of the segment in memory.
uint64_t memsz_;
- // The segment alignment.
+ // The segment alignment. The is_align_known_ field indicates
+ // whether this has been finalized. It can be set to a minimum
+ // value before it is finalized.
uint64_t align_;
// The offset of the segment data within the file.
off_t offset_;
elfcpp::Elf_Word type_;
// The segment flags.
elfcpp::Elf_Word flags_;
- // Whether we have set align_.
+ // Whether we have finalized align_.
bool is_align_known_;
};
class Output_file
{
public:
- Output_file(const General_options& options);
+ Output_file(const General_options& options, Target*);
+
+ // Get a pointer to the target.
+ Target*
+ target() const
+ { return this->target_; }
// Open the output file. FILE_SIZE is the final size of the file.
void
private:
// General options.
const General_options& options_;
+ // Target.
+ Target* target_;
// File name.
const char* name_;
// File descriptor.
projects / deliverable / binutils-gdb.git / blobdiff