// 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
class Output_data
{
public:
- explicit Output_data(off_t data_size = 0)
- : address_(0), data_size_(data_size), offset_(-1)
+ explicit Output_data()
+ : address_(0), data_size_(0), offset_(-1),
+ is_address_valid_(false), is_data_size_valid_(false),
+ is_offset_valid_(false),
+ dynamic_reloc_count_(0)
{ }
virtual
~Output_data();
- // Return the address. This is only valid after Layout::finalize is
- // finished.
+ // Return the address. For allocated sections, this is only valid
+ // after Layout::finalize is finished.
uint64_t
address() const
- { return this->address_; }
+ {
+ gold_assert(this->is_address_valid_);
+ return this->address_;
+ }
- // Return the size of the data. This must be valid after
- // Layout::finalize calls set_address, but need not be valid before
- // then.
+ // Return the size of the data. For allocated sections, this must
+ // be valid after Layout::finalize calls set_address, but need not
+ // be valid before then.
off_t
data_size() const
- { return this->data_size_; }
+ {
+ gold_assert(this->is_data_size_valid_);
+ return this->data_size_;
+ }
// Return the file offset. This is only valid after
- // Layout::finalize is finished.
+ // Layout::finalize is finished. For some non-allocated sections,
+ // it may not be valid until near the end of the link.
off_t
offset() const
- { return this->offset_; }
+ {
+ gold_assert(this->is_offset_valid_);
+ return this->offset_;
+ }
// Return the required alignment.
uint64_t
set_out_shndx(unsigned int shndx)
{ this->do_set_out_shndx(shndx); }
- // Set the address and file offset of this data. This is called
- // during Layout::finalize.
+ // Set the address and file offset of this data, and finalize the
+ // size of the data. This is called during Layout::finalize for
+ // allocated sections.
+ void
+ set_address_and_file_offset(uint64_t addr, off_t off)
+ {
+ this->set_address(addr);
+ this->set_file_offset(off);
+ this->finalize_data_size();
+ }
+
+ // Set the address.
void
- set_address(uint64_t addr, off_t off);
+ set_address(uint64_t addr)
+ {
+ gold_assert(!this->is_address_valid_);
+ this->address_ = addr;
+ this->is_address_valid_ = true;
+ }
+
+ // Set the file offset.
+ void
+ set_file_offset(off_t off)
+ {
+ gold_assert(!this->is_offset_valid_);
+ this->offset_ = off;
+ this->is_offset_valid_ = true;
+ }
+
+ // Finalize the data size.
+ void
+ finalize_data_size()
+ {
+ if (!this->is_data_size_valid_)
+ {
+ // Tell the child class to set the data size.
+ this->set_final_data_size();
+ gold_assert(this->is_data_size_valid_);
+ }
+ }
+
+ // Set the TLS offset. Called only for SHT_TLS sections.
+ void
+ set_tls_offset(uint64_t tls_base)
+ { this->do_set_tls_offset(tls_base); }
+
+ // Return the TLS offset, relative to the base of the TLS segment.
+ // Valid only for SHT_TLS sections.
+ uint64_t
+ tls_offset() const
+ { return this->do_tls_offset(); }
// Write the data to the output file. This is called after
// Layout::finalize is complete.
write(Output_file* file)
{ this->do_write(file); }
- // This is called by Layout::finalize to note that all sizes must
- // now be fixed.
+ // This is called by Layout::finalize to note that the sizes of
+ // allocated sections must now be fixed.
static void
layout_complete()
- { Output_data::sizes_are_fixed = true; }
+ { Output_data::allocated_sizes_are_fixed = true; }
+
+ // Used to check that layout has been done.
+ static bool
+ is_layout_complete()
+ { return Output_data::allocated_sizes_are_fixed; }
+
+ // Count the number of dynamic relocations applied to this section.
+ void
+ add_dynamic_reloc()
+ { ++this->dynamic_reloc_count_; }
+
+ // Return the number of dynamic relocations applied to this section.
+ unsigned int
+ dynamic_reloc_count() const
+ { return this->dynamic_reloc_count_; }
protected:
// Functions that child classes may or in some cases must implement.
do_set_out_shndx(unsigned int)
{ gold_unreachable(); }
- // Set the address and file offset of the data. This only needs to
- // be implemented if the child needs to know. The child class can
- // set its size in this call.
+ // This is a hook for derived classes to set the data size. This is
+ // called by finalize_data_size, normally called during
+ // Layout::finalize, when the section address is set.
virtual void
- do_set_address(uint64_t, off_t)
- { }
+ set_final_data_size()
+ { gold_unreachable(); }
+
+ // Set the TLS offset. Called only for SHT_TLS sections.
+ virtual void
+ do_set_tls_offset(uint64_t)
+ { gold_unreachable(); }
+
+ // Return the TLS offset, relative to the base of the TLS segment.
+ // Valid only for SHT_TLS sections.
+ virtual uint64_t
+ do_tls_offset() const
+ { gold_unreachable(); }
// Functions that child classes may call.
+ // Whether the address is valid.
+ bool
+ is_address_valid() const
+ { return this->is_address_valid_; }
+
+ // Whether the file offset is valid.
+ bool
+ is_offset_valid() const
+ { return this->is_offset_valid_; }
+
+ // Whether the data size is valid.
+ bool
+ is_data_size_valid() const
+ { return this->is_data_size_valid_; }
+
// Set the size of the data.
void
set_data_size(off_t data_size)
{
- gold_assert(!Output_data::sizes_are_fixed);
+ gold_assert(!this->is_data_size_valid_);
+ this->data_size_ = data_size;
+ this->is_data_size_valid_ = true;
+ }
+
+ // Get the current data size--this is for the convenience of
+ // sections which build up their size over time.
+ off_t
+ current_data_size_for_child() const
+ { return this->data_size_; }
+
+ // Set the current data size--this is for the convenience of
+ // sections which build up their size over time.
+ void
+ set_current_data_size_for_child(off_t data_size)
+ {
+ gold_assert(!this->is_data_size_valid_);
this->data_size_ = data_size;
}
- // Return default alignment for a size--32 or 64.
+ // Return default alignment for the target size.
+ static uint64_t
+ default_alignment();
+
+ // Return default alignment for a specified size--32 or 64.
static uint64_t
- default_alignment(int size);
+ default_alignment_for_size(int size);
private:
Output_data(const Output_data&);
Output_data& operator=(const Output_data&);
// This is used for verification, to make sure that we don't try to
- // change any sizes after we set the section addresses.
- static bool sizes_are_fixed;
+ // change any sizes of allocated sections after we set the section
+ // addresses.
+ static bool allocated_sizes_are_fixed;
- // Memory address in file (not always meaningful).
+ // Memory address in output file.
uint64_t address_;
- // Size of data in file.
+ // Size of data in output file.
off_t data_size_;
- // Offset within file.
+ // File offset of contents in output file.
off_t offset_;
+ // Whether address_ is valid.
+ bool is_address_valid_;
+ // Whether data_size_ is valid.
+ bool is_data_size_valid_;
+ // Whether offset_ is valid.
+ bool is_offset_valid_;
+ // Count of dynamic relocations applied to this section.
+ unsigned int dynamic_reloc_count_;
};
// Output the section headers.
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*);
+ protected:
// Write the data to the file.
void
do_write(Output_file*);
// Return the required alignment.
uint64_t
do_addralign() const
- { return Output_data::default_alignment(this->size_); }
+ { return Output_data::default_alignment(); }
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);
+ protected:
// Write the data to the file.
void
do_write(Output_file*);
// Return the required alignment.
uint64_t
do_addralign() const
- { return Output_data::default_alignment(this->size_); }
+ { return Output_data::default_alignment(); }
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*);
void set_section_info(const Output_section_headers*,
const Output_section* shstrtab);
+ protected:
// Write the data to the file.
void
do_write(Output_file*);
// Return the required alignment.
uint64_t
do_addralign() const
- { return Output_data::default_alignment(this->size_); }
-
- // Set the address and offset--we only implement this for error
- // checking.
- void
- do_set_address(uint64_t, off_t off) const
- { gold_assert(off == 0); }
+ { return Output_data::default_alignment(); }
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 General_options& options_;
const Target* target_;
const Symbol_table* symtab_;
const Output_segment_headers* segment_header_;
{
public:
Output_section_data(off_t data_size, uint64_t addralign)
- : Output_data(data_size), output_section_(NULL), addralign_(addralign)
- { }
+ : Output_data(), output_section_(NULL), addralign_(addralign)
+ { this->set_data_size(data_size); }
Output_section_data(uint64_t addralign)
- : Output_data(0), output_section_(NULL), addralign_(addralign)
+ : Output_data(), output_section_(NULL), addralign_(addralign)
{ }
// Return the output section.
// Given an input OBJECT, an input section index SHNDX within that
// object, and an OFFSET relative to the start of that input
- // section, return whether or not the output address is known.
- // OUTPUT_SECTION_ADDRESS is the address of the output section which
- // this is a part of. If this function returns true, it sets
- // *POUTPUT to the output address.
- virtual bool
- output_address(const Relobj* object, unsigned int shndx, off_t offset,
- uint64_t output_section_address, uint64_t *poutput) const
- {
- return this->do_output_address(object, shndx, offset,
- output_section_address, poutput);
- }
+ // section, return whether or not the corresponding offset within
+ // the output section is known. If this function returns true, it
+ // sets *POUTPUT to the output offset. The value -1 indicates that
+ // this input offset is being discarded.
+ bool
+ output_offset(const Relobj* object, unsigned int shndx,
+ section_offset_type offset,
+ section_offset_type *poutput) const
+ { return this->do_output_offset(object, shndx, offset, poutput); }
+
+ // Write the contents to a buffer. This is used for sections which
+ // require postprocessing, such as compression.
+ void
+ write_to_buffer(unsigned char* buffer)
+ { this->do_write_to_buffer(buffer); }
+
+ // Print merge stats to stderr. This should only be called for
+ // SHF_MERGE sections.
+ void
+ print_merge_stats(const char* section_name)
+ { this->do_print_merge_stats(section_name); }
protected:
// The child class must implement do_write.
do_add_input_section(Relobj*, unsigned int)
{ gold_unreachable(); }
- // The child class may implement output_address.
+ // The child class may implement output_offset.
virtual bool
- do_output_address(const Relobj*, unsigned int, off_t, uint64_t,
- uint64_t*) const
+ do_output_offset(const Relobj*, unsigned int, section_offset_type,
+ section_offset_type*) const
{ return false; }
+ // The child class may implement write_to_buffer. Most child
+ // classes can not appear in a compressed section, and they do not
+ // implement this.
+ virtual void
+ do_write_to_buffer(unsigned char*)
+ { gold_unreachable(); }
+
+ // Print merge statistics.
+ virtual void
+ do_print_merge_stats(const char*)
+ { gold_unreachable(); }
+
// Return the required alignment.
uint64_t
do_addralign() const
uint64_t addralign_;
};
+// Some Output_section_data classes build up their data step by step,
+// rather than all at once. This class provides an interface for
+// them.
+
+class Output_section_data_build : public Output_section_data
+{
+ public:
+ Output_section_data_build(uint64_t addralign)
+ : Output_section_data(addralign)
+ { }
+
+ // Get the current data size.
+ off_t
+ current_data_size() const
+ { return this->current_data_size_for_child(); }
+
+ // Set the current data size.
+ void
+ set_current_data_size(off_t data_size)
+ { this->set_current_data_size_for_child(data_size); }
+
+ protected:
+ // Set the final data size.
+ virtual void
+ set_final_data_size()
+ { this->set_data_size(this->current_data_size_for_child()); }
+};
+
// A simple case of Output_data in which we have constant data to
// output.
data_(reinterpret_cast<const char*>(p), len)
{ }
- // Add more data.
- void
- add_data(const std::string& add)
- {
- this->data_.append(add);
- this->set_data_size(this->data_.size());
- }
-
+ protected:
// Write the data to the output file.
void
do_write(Output_file*);
+ // Write the data to a buffer.
+ void
+ do_write_to_buffer(unsigned char* buffer)
+ { memcpy(buffer, this->data_.data(), this->data_.size()); }
+
private:
std::string data_;
};
: Output_section_data(len, addralign), p_(p)
{ }
+ protected:
// Write the data the output file.
void
do_write(Output_file*);
+ // Write the data to a buffer.
+ void
+ do_write_to_buffer(unsigned char* buffer)
+ { memcpy(buffer, this->p_, this->data_size()); }
+
private:
const unsigned char* p_;
};
-// A place holder for data written out via some other mechanism.
+// A place holder for a fixed amount of data written out via some
+// other mechanism.
-class Output_data_space : public Output_section_data
+class Output_data_fixed_space : public Output_section_data
{
public:
- Output_data_space(off_t data_size, uint64_t addralign)
+ Output_data_fixed_space(off_t data_size, uint64_t addralign)
: Output_section_data(data_size, addralign)
{ }
- explicit Output_data_space(uint64_t addralign)
- : Output_section_data(addralign)
+ protected:
+ // Write out the data--the actual data must be written out
+ // elsewhere.
+ void
+ do_write(Output_file*)
{ }
+};
- // Set the size.
- void
- set_space_size(off_t space_size)
- { this->set_data_size(space_size); }
+// A place holder for variable sized data written out via some other
+// mechanism.
+
+class Output_data_space : public Output_section_data_build
+{
+ public:
+ explicit Output_data_space(uint64_t addralign)
+ : Output_section_data_build(addralign)
+ { }
// Set the alignment.
void
set_space_alignment(uint64_t align)
{ this->set_addralign(align); }
- // Write out the data--this must be handled elsewhere.
+ protected:
+ // Write out the data--the actual data must be written out
+ // elsewhere.
void
do_write(Output_file*)
{ }
: Output_section_data(1), strtab_(strtab)
{ }
+ protected:
// This is called to set the address and file offset. Here we make
// sure that the Stringpool is finalized.
void
- do_set_address(uint64_t, off_t);
+ set_final_data_size();
// Write out the data.
void
do_write(Output_file*);
+ // Write the data to a buffer.
+ void
+ do_write_to_buffer(unsigned char* buffer)
+ { this->strtab_->write_to_buffer(buffer, this->data_size()); }
+
private:
Stringpool* strtab_;
};
// A reloc against a global symbol.
Output_reloc(Symbol* gsym, unsigned int type, Output_data* od,
- Address address)
- : address_(address), local_sym_index_(GSYM_CODE), type_(type),
- shndx_(INVALID_CODE)
- {
- this->u1_.gsym = gsym;
- this->u2_.od = od;
- }
+ Address address, bool is_relative);
Output_reloc(Symbol* gsym, unsigned int type, Relobj* relobj,
- unsigned int shndx, Address address)
- : address_(address), local_sym_index_(GSYM_CODE), type_(type),
- shndx_(shndx)
- {
- gold_assert(shndx != INVALID_CODE);
- this->u1_.gsym = gsym;
- this->u2_.relobj = relobj;
- }
+ unsigned int shndx, Address address, bool is_relative);
// A reloc against a local symbol.
Output_reloc(Sized_relobj<size, big_endian>* relobj,
- unsigned int local_sym_index,
- unsigned int type,
- Output_data* od,
- Address address)
- : address_(address), local_sym_index_(local_sym_index), type_(type),
- shndx_(INVALID_CODE)
- {
- gold_assert(local_sym_index != GSYM_CODE
- && local_sym_index != INVALID_CODE);
- this->u1_.relobj = relobj;
- this->u2_.od = od;
- }
+ unsigned int local_sym_index, unsigned int type,
+ Output_data* od, Address address, bool is_relative);
Output_reloc(Sized_relobj<size, big_endian>* relobj,
- unsigned int local_sym_index,
- unsigned int type,
- unsigned int shndx,
- Address address)
- : address_(address), local_sym_index_(local_sym_index), type_(type),
- shndx_(shndx)
- {
- gold_assert(local_sym_index != GSYM_CODE
- && local_sym_index != INVALID_CODE);
- gold_assert(shndx != INVALID_CODE);
- this->u1_.relobj = relobj;
- this->u2_.relobj = relobj;
- }
+ unsigned int local_sym_index, unsigned int type,
+ unsigned int shndx, Address address, bool is_relative);
// A reloc against the STT_SECTION symbol of an output section.
Output_reloc(Output_section* os, unsigned int type, Output_data* od,
- Address address)
- : address_(address), local_sym_index_(SECTION_CODE), type_(type),
- shndx_(INVALID_CODE)
- {
- this->u1_.os = os;
- this->u2_.od = od;
- }
+ Address address);
Output_reloc(Output_section* os, unsigned int type, Relobj* relobj,
- unsigned int shndx, Address address)
- : address_(address), local_sym_index_(SECTION_CODE), type_(type),
- shndx_(shndx)
- {
- gold_assert(shndx != INVALID_CODE);
- this->u1_.os = os;
- this->u2_.relobj = relobj;
- }
+ unsigned int shndx, Address address);
+
+ // Return TRUE if this is a RELATIVE relocation.
+ bool
+ is_relative() const
+ { return this->is_relative_; }
+
+ // Get the value of the symbol referred to by a Rel relocation.
+
+ Address
+ symbol_value() const;
// Write the reloc entry to an output view.
void
// for a global symbol, or INVALID_CODE for an uninitialized value.
unsigned int local_sym_index_;
// The reloc type--a processor specific code.
- unsigned int type_;
+ unsigned int type_ : 31;
+ // True if the relocation is a RELATIVE relocation.
+ bool is_relative_ : 1;
// If the reloc address is an input section in an object, the
// section index. This is INVALID_CODE if the reloc address is
// specified in some other way.
// A reloc against a global symbol.
Output_reloc(Symbol* gsym, unsigned int type, Output_data* od,
- Address address, Addend addend)
- : rel_(gsym, type, od, address), addend_(addend)
+ Address address, Addend addend, bool is_relative)
+ : rel_(gsym, type, od, address, is_relative), addend_(addend)
{ }
Output_reloc(Symbol* gsym, unsigned int type, Relobj* relobj,
- unsigned int shndx, Address address, Addend addend)
- : rel_(gsym, type, relobj, shndx, address), addend_(addend)
+ unsigned int shndx, Address address, Addend addend,
+ bool is_relative)
+ : rel_(gsym, type, relobj, shndx, address, is_relative), addend_(addend)
{ }
// A reloc against a local symbol.
Output_reloc(Sized_relobj<size, big_endian>* relobj,
- unsigned int local_sym_index,
- unsigned int type, Output_data* od, Address address,
- Addend addend)
- : rel_(relobj, local_sym_index, type, od, address), addend_(addend)
+ unsigned int local_sym_index, unsigned int type,
+ Output_data* od, Address address,
+ Addend addend, bool is_relative)
+ : rel_(relobj, local_sym_index, type, od, address, is_relative),
+ addend_(addend)
{ }
Output_reloc(Sized_relobj<size, big_endian>* relobj,
- unsigned int local_sym_index,
- unsigned int type,
- unsigned int shndx,
- Address address,
- Addend addend)
- : rel_(relobj, local_sym_index, type, shndx, address),
+ unsigned int local_sym_index, unsigned int type,
+ unsigned int shndx, Address address,
+ Addend addend, bool is_relative)
+ : rel_(relobj, local_sym_index, type, shndx, address, is_relative),
addend_(addend)
{ }
// the reloc type.
template<int sh_type, bool dynamic, int size, bool big_endian>
-class Output_data_reloc_base : public Output_section_data
+class Output_data_reloc_base : public Output_section_data_build
{
public:
typedef Output_reloc<sh_type, dynamic, size, big_endian> Output_reloc_type;
// Construct the section.
Output_data_reloc_base()
- : Output_section_data(Output_data::default_alignment(size))
+ : Output_section_data_build(Output_data::default_alignment_for_size(size))
{ }
+ protected:
// Write out the data.
void
do_write(Output_file*);
- protected:
// Set the entry size and the link.
void
do_adjust_output_section(Output_section *os);
// Add a relocation entry.
void
- add(const Output_reloc_type& reloc)
+ add(Output_data *od, const Output_reloc_type& reloc)
{
this->relocs_.push_back(reloc);
- this->set_data_size(this->relocs_.size() * reloc_size);
+ this->set_current_data_size(this->relocs_.size() * reloc_size);
+ od->add_dynamic_reloc();
}
private:
void
add_global(Symbol* gsym, unsigned int type, Output_data* od, Address address)
- { this->add(Output_reloc_type(gsym, type, od, address)); }
+ { this->add(od, Output_reloc_type(gsym, type, od, address, false)); }
void
- add_global(Symbol* gsym, unsigned int type, Relobj* relobj,
+ add_global(Symbol* gsym, unsigned int type, Output_data* od, Relobj* relobj,
unsigned int shndx, Address address)
- { this->add(Output_reloc_type(gsym, type, relobj, shndx, address)); }
+ { this->add(od, Output_reloc_type(gsym, type, relobj, shndx, address,
+ false)); }
+
+ // Add a RELATIVE reloc against a global symbol. The final relocation
+ // will not reference the symbol.
+
+ void
+ add_global_relative(Symbol* gsym, unsigned int type, Output_data* od,
+ Address address)
+ { this->add(od, Output_reloc_type(gsym, type, od, address, true)); }
+
+ void
+ add_global_relative(Symbol* gsym, unsigned int type, Output_data* od,
+ Relobj* relobj, unsigned int shndx, Address address)
+ { this->add(od, Output_reloc_type(gsym, type, relobj, shndx, address,
+ true)); }
// Add a reloc against a local symbol.
add_local(Sized_relobj<size, big_endian>* relobj,
unsigned int local_sym_index, unsigned int type,
Output_data* od, Address address)
- { this->add(Output_reloc_type(relobj, local_sym_index, type, od, address)); }
+ { this->add(od, Output_reloc_type(relobj, local_sym_index, type, od,
+ address, false)); }
void
add_local(Sized_relobj<size, big_endian>* relobj,
unsigned int local_sym_index, unsigned int type,
- unsigned int shndx, Address address)
- { this->add(Output_reloc_type(relobj, local_sym_index, type, shndx,
- address)); }
+ Output_data* od, unsigned int shndx, Address address)
+ { this->add(od, Output_reloc_type(relobj, local_sym_index, type, shndx,
+ address, false)); }
+ // Add a RELATIVE reloc against a local symbol.
+
+ void
+ add_local_relative(Sized_relobj<size, big_endian>* relobj,
+ unsigned int local_sym_index, unsigned int type,
+ Output_data* od, Address address)
+ { this->add(od, Output_reloc_type(relobj, local_sym_index, type, od,
+ address, true)); }
+
+ void
+ add_local_relative(Sized_relobj<size, big_endian>* relobj,
+ unsigned int local_sym_index, unsigned int type,
+ Output_data* od, unsigned int shndx, Address address)
+ { this->add(od, Output_reloc_type(relobj, local_sym_index, type, shndx,
+ address, true)); }
// A reloc against the STT_SECTION symbol of an output section.
+ // OS is the Output_section that the relocation refers to; OD is
+ // the Output_data object being relocated.
void
add_output_section(Output_section* os, unsigned int type,
Output_data* od, Address address)
- { this->add(Output_reloc_type(os, type, od, address)); }
+ { this->add(od, Output_reloc_type(os, type, od, address)); }
void
- add_output_section(Output_section* os, unsigned int type,
+ add_output_section(Output_section* os, unsigned int type, Output_data* od,
Relobj* relobj, unsigned int shndx, Address address)
- { this->add(Output_reloc_type(os, type, relobj, shndx, address)); }
+ { this->add(od, Output_reloc_type(os, type, relobj, shndx, address)); }
};
// The SHT_RELA version of Output_data_reloc.
void
add_global(Symbol* gsym, unsigned int type, Output_data* od,
Address address, Addend addend)
- { this->add(Output_reloc_type(gsym, type, od, address, addend)); }
+ { this->add(od, Output_reloc_type(gsym, type, od, address, addend,
+ false)); }
+
+ void
+ add_global(Symbol* gsym, unsigned int type, Output_data* od, Relobj* relobj,
+ unsigned int shndx, Address address,
+ Addend addend)
+ { this->add(od, Output_reloc_type(gsym, type, relobj, shndx, address,
+ addend, false)); }
+
+ // Add a RELATIVE reloc against a global symbol. The final output
+ // relocation will not reference the symbol, but we must keep the symbol
+ // information long enough to set the addend of the relocation correctly
+ // when it is written.
+
+ void
+ add_global_relative(Symbol* gsym, unsigned int type, Output_data* od,
+ Address address, Addend addend)
+ { this->add(od, Output_reloc_type(gsym, type, od, address, addend, true)); }
void
- add_global(Symbol* gsym, unsigned int type, Relobj* relobj,
- unsigned int shndx, Address address, Addend addend)
- { this->add(Output_reloc_type(gsym, type, relobj, shndx, address, addend)); }
+ add_global_relative(Symbol* gsym, unsigned int type, Output_data* od,
+ Relobj* relobj, unsigned int shndx, Address address,
+ Addend addend)
+ { this->add(od, Output_reloc_type(gsym, type, relobj, shndx, address,
+ addend, true)); }
// Add a reloc against a local symbol.
unsigned int local_sym_index, unsigned int type,
Output_data* od, Address address, Addend addend)
{
- this->add(Output_reloc_type(relobj, local_sym_index, type, od, address,
- addend));
+ this->add(od, Output_reloc_type(relobj, local_sym_index, type, od, address,
+ addend, false));
}
void
add_local(Sized_relobj<size, big_endian>* relobj,
unsigned int local_sym_index, unsigned int type,
- unsigned int shndx, Address address, Addend addend)
+ Output_data* od, unsigned int shndx, Address address,
+ Addend addend)
{
- this->add(Output_reloc_type(relobj, local_sym_index, type, shndx, address,
- addend));
+ this->add(od, Output_reloc_type(relobj, local_sym_index, type, shndx,
+ address, addend, false));
+ }
+
+ // Add a RELATIVE reloc against a local symbol.
+
+ void
+ add_local_relative(Sized_relobj<size, big_endian>* relobj,
+ unsigned int local_sym_index, unsigned int type,
+ Output_data* od, Address address, Addend addend)
+ {
+ this->add(od, Output_reloc_type(relobj, local_sym_index, type, od, address,
+ addend, true));
+ }
+
+ void
+ add_local_relative(Sized_relobj<size, big_endian>* relobj,
+ unsigned int local_sym_index, unsigned int type,
+ Output_data* od, unsigned int shndx, Address address,
+ Addend addend)
+ {
+ this->add(od, Output_reloc_type(relobj, local_sym_index, type, shndx,
+ address, addend, true));
}
// A reloc against the STT_SECTION symbol of an output section.
void
add_output_section(Output_section* os, unsigned int type, Output_data* od,
Address address, Addend addend)
- { this->add(Output_reloc_type(os, type, od, address, addend)); }
+ { this->add(os, Output_reloc_type(os, type, od, address, addend)); }
void
add_output_section(Output_section* os, unsigned int type, Relobj* relobj,
unsigned int shndx, Address address, Addend addend)
- { this->add(Output_reloc_type(os, type, relobj, shndx, address, addend)); }
+ { this->add(os, Output_reloc_type(os, type, relobj, shndx, address,
+ addend)); }
};
// Output_data_got is used to manage a GOT. Each entry in the GOT is
// needed.
template<int size, bool big_endian>
-class Output_data_got : public Output_section_data
+class Output_data_got : public Output_section_data_build
{
public:
typedef typename elfcpp::Elf_types<size>::Elf_Addr Valtype;
+ typedef Output_data_reloc<elfcpp::SHT_REL, true, size, big_endian> Rel_dyn;
+ typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> Rela_dyn;
- Output_data_got(const General_options* options)
- : Output_section_data(Output_data::default_alignment(size)),
- options_(options), entries_()
+ Output_data_got()
+ : Output_section_data_build(Output_data::default_alignment_for_size(size)),
+ entries_()
{ }
// Add an entry for a global symbol to the GOT. Return true if this
bool
add_global(Symbol* gsym);
- // Add an entry for a local symbol to the GOT. This returns the
- // offset of the new entry from the start of the GOT.
- unsigned int
- add_local(Object* object, unsigned int sym_index)
- {
- this->entries_.push_back(Got_entry(object, sym_index));
- this->set_got_size();
- return this->last_got_offset();
- }
+ // Add an entry for a global symbol to the GOT, and add a dynamic
+ // relocation of type R_TYPE for the GOT entry.
+ void
+ add_global_with_rel(Symbol* gsym, Rel_dyn* rel_dyn, unsigned int r_type);
+
+ void
+ add_global_with_rela(Symbol* gsym, Rela_dyn* rela_dyn, unsigned int r_type);
+
+ // Add an entry for a local symbol to the GOT. This returns true if
+ // this is a new GOT entry, false if the symbol already has a GOT
+ // entry.
+ bool
+ add_local(Sized_relobj<size, big_endian>* object, unsigned int sym_index);
+
+ // Add an entry for a global symbol to the GOT, and add a dynamic
+ // relocation of type R_TYPE for the GOT entry.
+ void
+ add_local_with_rel(Sized_relobj<size, big_endian>* object,
+ unsigned int sym_index, Rel_dyn* rel_dyn,
+ unsigned int r_type);
+
+ void
+ add_local_with_rela(Sized_relobj<size, big_endian>* object,
+ unsigned int sym_index, Rela_dyn* rela_dyn,
+ unsigned int r_type);
+
+ // Add an entry (or pair of entries) for a global TLS symbol to the GOT.
+ // Return true if this is a new GOT entry, false if the symbol was
+ // already in the GOT.
+ bool
+ add_global_tls(Symbol* gsym, bool need_pair);
+
+ // Add an entry for a global TLS symbol to the GOT, and add a dynamic
+ // relocation of type R_TYPE.
+ void
+ add_global_tls_with_rel(Symbol* gsym, Rel_dyn* rel_dyn,
+ unsigned int r_type);
+
+ void
+ add_global_tls_with_rela(Symbol* gsym, Rela_dyn* rela_dyn,
+ unsigned int r_type);
+
+ // Add a pair of entries for a global TLS symbol to the GOT, and add
+ // dynamic relocations of type MOD_R_TYPE and DTV_R_TYPE, respectively.
+ void
+ add_global_tls_with_rel(Symbol* gsym, Rel_dyn* rel_dyn,
+ unsigned int mod_r_type,
+ unsigned int dtv_r_type);
+
+ void
+ add_global_tls_with_rela(Symbol* gsym, Rela_dyn* rela_dyn,
+ unsigned int mod_r_type,
+ unsigned int dtv_r_type);
+
+ // Add an entry (or pair of entries) for a local TLS symbol to the GOT.
+ // This returns true if this is a new GOT entry, false if the symbol
+ // already has a GOT entry.
+ bool
+ add_local_tls(Sized_relobj<size, big_endian>* object,
+ unsigned int sym_index, bool need_pair);
+
+ // Add an entry (or pair of entries) for a local TLS symbol to the GOT,
+ // and add a dynamic relocation of type R_TYPE for the first GOT entry.
+ // Because this is a local symbol, the first GOT entry can be relocated
+ // relative to a section symbol, and the second GOT entry will have an
+ // dtv-relative value that can be computed at link time.
+ void
+ add_local_tls_with_rel(Sized_relobj<size, big_endian>* object,
+ unsigned int sym_index, unsigned int shndx,
+ bool need_pair, Rel_dyn* rel_dyn,
+ unsigned int r_type);
+
+ void
+ add_local_tls_with_rela(Sized_relobj<size, big_endian>* object,
+ unsigned int sym_index, unsigned int shndx,
+ bool need_pair, Rela_dyn* rela_dyn,
+ unsigned int r_type);
// Add a constant to the GOT. This returns the offset of the new
// entry from the start of the GOT.
return this->last_got_offset();
}
+ protected:
// Write out the GOT table.
void
do_write(Output_file*);
{ this->u_.gsym = gsym; }
// Create a local symbol entry.
- Got_entry(Object* object, unsigned int local_sym_index)
+ Got_entry(Sized_relobj<size, big_endian>* object,
+ unsigned int local_sym_index)
: local_sym_index_(local_sym_index)
{
gold_assert(local_sym_index != GSYM_CODE
// Write the GOT entry to an output view.
void
- write(const General_options*, unsigned char* pov) const;
+ write(unsigned char* pov) const;
private:
enum
union
{
// For a local symbol, the object.
- Object* object;
+ Sized_relobj<size, big_endian>* object;
// For a global symbol, the symbol.
Symbol* gsym;
// For a constant, the constant.
// Set the size of the section.
void
set_got_size()
- { this->set_data_size(this->got_offset(this->entries_.size())); }
+ { this->set_current_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()),
+ entries_(), pool_(pool)
{ }
// Add a new dynamic entry with a fixed numeric value.
// Add a new dynamic entry with a string.
void
add_string(elfcpp::DT tag, const char* str)
- { this->add_entry(Dynamic_entry(tag, this->pool_->add(str, NULL))); }
+ { this->add_entry(Dynamic_entry(tag, this->pool_->add(str, true, NULL))); }
void
add_string(elfcpp::DT tag, const std::string& str)
{ this->add_string(tag, str.c_str()); }
+ protected:
+ // Adjust the output section to set the entry size.
+ void
+ do_adjust_output_section(Output_section*);
+
// Set the final data size.
void
- do_set_address(uint64_t, off_t);
+ set_final_data_size();
// Write out the dynamic entries.
void
do_write(Output_file*);
- protected:
- // Adjust the output section to set the entry size.
- void
- do_adjust_output_section(Output_section*);
-
private:
// This POD class holds a single dynamic entry.
class Dynamic_entry
// 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.
virtual ~Output_section();
// Add a new input section SHNDX, named NAME, with header SHDR, from
- // object OBJECT. Return the offset within the output section.
+ // object OBJECT. RELOC_SHNDX is the index of a relocation section
+ // which applies to this section, or 0 if none, or -1U if more than
+ // one. Return the offset within the output section.
template<int size, bool big_endian>
off_t
- add_input_section(Relobj* object, unsigned int shndx, const char *name,
- const elfcpp::Shdr<size, big_endian>& shdr);
+ add_input_section(Sized_relobj<size, big_endian>* object, unsigned int shndx,
+ const char *name,
+ const elfcpp::Shdr<size, big_endian>& shdr,
+ unsigned int reloc_shndx);
// Add generated data POSD to this output section.
void
flags() const
{ return this->flags_; }
- // Return the section index in the output file.
- unsigned int
- do_out_shndx() const
- { return this->out_shndx_; }
-
- // Set the output section index.
- void
- do_set_out_shndx(unsigned int shndx)
- { this->out_shndx_ = shndx; }
-
// Return the entsize field.
uint64_t
entsize() const
this->dynsym_index_ = index;
}
+ // Return whether this section should be written after all the input
+ // sections are complete.
+ bool
+ after_input_sections() const
+ { return this->after_input_sections_; }
+
+ // Record that this section should be written after all the input
+ // sections are complete.
+ void
+ set_after_input_sections()
+ { this->after_input_sections_ = true; }
+
+ // Return whether this section requires postprocessing after all
+ // relocations have been applied.
+ bool
+ requires_postprocessing() const
+ { return this->requires_postprocessing_; }
+
+ // If a section requires postprocessing, return the buffer to use.
+ unsigned char*
+ postprocessing_buffer() const
+ {
+ gold_assert(this->postprocessing_buffer_ != NULL);
+ return this->postprocessing_buffer_;
+ }
+
+ // If a section requires postprocessing, create the buffer to use.
+ void
+ create_postprocessing_buffer();
+
+ // If a section requires postprocessing, this is the size of the
+ // buffer to which relocations should be applied.
+ off_t
+ postprocessing_buffer_size() const
+ { return this->current_data_size_for_child(); }
+
+ // Return whether the offset OFFSET in the input section SHNDX in
+ // object OBJECT is being included in the link.
+ bool
+ is_input_address_mapped(const Relobj* object, unsigned int shndx,
+ off_t offset) const;
+
+ // Return the offset within the output section of OFFSET relative to
+ // the start of input section SHNDX in object OBJECT.
+ section_offset_type
+ output_offset(const Relobj* object, unsigned int shndx,
+ section_offset_type offset) const;
+
// Return the output virtual address of OFFSET relative to the start
// of input section SHNDX in object OBJECT.
uint64_t
output_address(const Relobj* object, unsigned int shndx,
off_t offset) const;
- // Set the address of the Output_section. For a typical
+ // Write the section header into *OPHDR.
+ template<int size, bool big_endian>
+ void
+ write_header(const Layout*, const Stringpool*,
+ elfcpp::Shdr_write<size, big_endian>*) const;
+
+ // Print merge statistics to stderr.
+ void
+ print_merge_stats();
+
+ protected:
+ // Return the section index in the output file.
+ unsigned int
+ do_out_shndx() const
+ {
+ gold_assert(this->out_shndx_ != -1U);
+ return this->out_shndx_;
+ }
+
+ // Set the output section index.
+ void
+ do_set_out_shndx(unsigned int shndx)
+ {
+ gold_assert(this->out_shndx_ == -1U);
+ this->out_shndx_ = shndx;
+ }
+
+ // Set the final data size of the Output_section. For a typical
// Output_section, there is nothing to do, but if there are any
- // Output_section_data objects we need to set the final addresses
+ // Output_section_data objects we need to set their final addresses
// here.
- void
- do_set_address(uint64_t, off_t);
+ virtual void
+ set_final_data_size();
// Write the data to the file. For a typical Output_section, this
// does nothing: the data is written out by calling Object::Relocate
// on each input object. But if there are any Output_section_data
// objects we do need to write them out here.
- void
+ virtual void
do_write(Output_file*);
// Return the address alignment--function required by parent class.
do_is_section_flag_set(elfcpp::Elf_Xword flag) const
{ return (this->flags_ & flag) != 0; }
- // Write the section header into *OPHDR.
- template<int size, bool big_endian>
+ // Set the TLS offset. Called only for SHT_TLS sections.
void
- write_header(const Layout*, const Stringpool*,
- elfcpp::Shdr_write<size, big_endian>*) const;
+ do_set_tls_offset(uint64_t tls_base);
+
+ // Return the TLS offset, relative to the base of the TLS segment.
+ // Valid only for SHT_TLS sections.
+ uint64_t
+ do_tls_offset() const
+ { return this->tls_offset_; }
+
+ // Modify the section name. This is only permitted for an
+ // unallocated section, and only before the size has been finalized.
+ // Otherwise the name will not get into Layout::namepool_.
+ void
+ set_name(const char* newname)
+ {
+ gold_assert((this->flags_ & elfcpp::SHF_ALLOC) == 0);
+ gold_assert(!this->is_data_size_valid());
+ this->name_ = newname;
+ }
+
+ // This may be implemented by a child class.
+ virtual void
+ do_finalize_name(Layout*)
+ { }
+
+ // Record that this section requires postprocessing after all
+ // relocations have been applied. This is called by a child class.
+ void
+ set_requires_postprocessing()
+ {
+ this->requires_postprocessing_ = true;
+ this->after_input_sections_ = true;
+ }
+
+ // Write all the data of an Output_section into the postprocessing
+ // buffer.
+ void
+ write_to_postprocessing_buffer();
private:
// In some cases we need to keep a list of the input sections
// Return whether this is a merge section which matches the
// parameters.
bool
- is_merge_section(bool is_string, uint64_t entsize) const
+ is_merge_section(bool is_string, uint64_t entsize,
+ uint64_t addralign) const
{
return (this->shndx_ == (is_string
? MERGE_STRING_SECTION_CODE
: MERGE_DATA_SECTION_CODE)
- && this->u1_.entsize == entsize);
+ && this->u1_.entsize == entsize
+ && this->addralign() == addralign);
}
// Set the output section.
}
// Set the address and file offset. This is called during
- // Layout::finalize. SECOFF is the file offset of the enclosing
- // section.
+ // Layout::finalize. SECTION_FILE_OFFSET is the file offset of
+ // the enclosing section.
+ void
+ set_address_and_file_offset(uint64_t address, off_t file_offset,
+ off_t section_file_offset);
+
+ // Finalize the data size.
void
- set_address(uint64_t addr, off_t off, off_t secoff);
+ finalize_data_size();
// Add an input section, for SHF_MERGE sections.
bool
// Given an input OBJECT, an input section index SHNDX within that
// object, and an OFFSET relative to the start of that input
- // section, return whether or not the output address is known.
- // OUTPUT_SECTION_ADDRESS is the address of the output section
- // which this is a part of. If this function returns true, it
- // sets *POUTPUT to the output address.
+ // section, return whether or not the output offset is known. If
+ // this function returns true, it sets *POUTPUT to the offset in
+ // the output section, relative to the start of the input section
+ // in the output section. *POUTPUT may be different from OFFSET
+ // for a merged section.
bool
- output_address(const Relobj* object, unsigned int shndx, off_t offset,
- uint64_t output_section_address, uint64_t *poutput) const;
+ output_offset(const Relobj* object, unsigned int shndx,
+ section_offset_type offset,
+ section_offset_type *poutput) const;
// Write out the data. This does nothing for an input section.
void
write(Output_file*);
+ // Write the data to a buffer. This does nothing for an input
+ // section.
+ void
+ write_to_buffer(unsigned char*);
+
+ // Print statistics about merge sections to stderr.
+ void
+ print_merge_stats(const char* section_name)
+ {
+ if (this->shndx_ == MERGE_DATA_SECTION_CODE
+ || this->shndx_ == MERGE_STRING_SECTION_CODE)
+ this->u2_.posd->print_merge_stats(section_name);
+ }
+
private:
// Code values which appear in shndx_. If the value is not one of
// these codes, it is the input section index in the object file.
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*);
// If info_section_ is NULL, this is the section info field.
unsigned int info_;
// The section type.
- elfcpp::Elf_Word type_;
+ const elfcpp::Elf_Word type_;
// The section flags.
- elfcpp::Elf_Xword flags_;
+ const elfcpp::Elf_Xword flags_;
// The section index.
unsigned int out_shndx_;
// If there is a STT_SECTION for this output section in the normal
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_;
+ // If the section requires postprocessing, this buffer holds the
+ // section contents during relocation.
+ unsigned char* postprocessing_buffer_;
// 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.
// Whether the link field of this output section should point to the
// dynamic symbol table.
bool should_link_to_dynsym_ : 1;
+ // Whether this section should be written after all the input
+ // sections are complete.
+ bool after_input_sections_ : 1;
+ // Whether this section requires post processing after all
+ // relocations have been applied.
+ bool requires_postprocessing_ : 1;
+ // For SHT_TLS sections, the offset of this section relative to the base
+ // of the TLS segment.
+ uint64_t tls_offset_;
};
// An output segment. PT_LOAD segments are built from collections of
void
add_initial_output_data(Output_data*);
+ // Return the number of dynamic relocations applied to this segment.
+ unsigned int
+ dynamic_reloc_count() const;
+
// Set the address of the segment to ADDR and the offset to *POFF
// (aligned if necessary), and set the addresses and offsets of all
// contained output sections accordingly. Set the section indexes
void
set_offset();
+ // Set the TLS offsets of the sections contained in the PT_TLS segment.
+ void
+ set_tls_offsets();
+
// Return the number of output sections.
unsigned int
output_section_count() const;
unsigned int
output_section_count_list(const Output_data_list*) const;
+ // Return the number of dynamic relocs in an Output_data_list.
+ unsigned int
+ dynamic_reloc_count_list(const Output_data_list*) const;
+
// Write the section headers in the list into V.
template<int size, bool big_endian>
unsigned char*
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
open(off_t file_size);
- // Close the output file and make sure there are no error.
+ // Resize the output file.
+ void
+ resize(off_t file_size);
+
+ // Close the output file (flushing all buffered data) and make sure
+ // there are no errors.
void
close();
// Write data to the output file.
void
- write(off_t offset, const void* data, off_t len)
+ write(off_t offset, const void* data, size_t len)
{ memcpy(this->base_ + offset, data, len); }
// Get a buffer to use to write to the file, given the offset into
// the file and the size.
unsigned char*
- get_output_view(off_t start, off_t size)
+ get_output_view(off_t start, size_t size)
{
- gold_assert(start >= 0 && size >= 0 && start + size <= this->file_size_);
+ gold_assert(start >= 0 && start + size <= this->file_size_);
return this->base_ + start;
}
// VIEW must have been returned by get_output_view. Write the
// buffer to the file, passing in the offset and the size.
void
- write_output_view(off_t, off_t, unsigned char*)
+ write_output_view(off_t, size_t, unsigned char*)
+ { }
+
+ // Get a read/write buffer. This is used when we want to write part
+ // of the file, read it in, and write it again.
+ unsigned char*
+ get_input_output_view(off_t start, size_t size)
+ { return this->get_output_view(start, size); }
+
+ // Write a read/write buffer back to the file.
+ void
+ write_input_output_view(off_t, size_t, unsigned char*)
+ { }
+
+ // Get a read buffer. This is used when we just want to read part
+ // of the file back it in.
+ const unsigned char*
+ get_input_view(off_t start, size_t size)
+ { return this->get_output_view(start, size); }
+
+ // Release a read bfufer.
+ void
+ free_input_view(off_t, size_t, const unsigned char*)
{ }
private:
+ // Map the file into memory and return a pointer to the map.
+ void
+ map();
+
+ // Unmap the file from memory (and flush to disk buffers).
+ void
+ unmap();
+
+
// General options.
const General_options& options_;
+ // Target.
+ Target* target_;
// File name.
const char* name_;
// File descriptor.
off_t file_size_;
// Base of file mapped into memory.
unsigned char* base_;
+ // True iff base_ points to a memory buffer rather than an output file.
+ bool map_is_anonymous_;
};
} // End namespace gold.
projects / deliverable / binutils-gdb.git / blobdiff