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Support assignments and expressions in linker scripts.

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This commit is contained in:
Ian Lance Taylor 2008-01-09 19:57:45 +00:00
parent cda30489fc
commit e5756efb6d
21 changed files with 1876 additions and 444 deletions
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28
gold/layout.h
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@ -1,6 +1,6 @@
// layout.h -- lay out output file sections for gold -*- C++ -*-
// Copyright 2006, 2007 Free Software Foundation, Inc.
// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
@ -28,6 +28,7 @@
#include <utility>
#include <vector>
#include "script.h"
#include "workqueue.h"
#include "object.h"
#include "dynobj.h"
@ -84,7 +85,7 @@ class Layout_task_runner : public Task_function_runner
class Layout
{
public:
Layout(const General_options& options);
Layout(const General_options& options, Script_options*);
// Given an input section SHNDX, named NAME, with data in SHDR, from
// the object file OBJECT, return the output section where this
@ -142,6 +143,11 @@ class Layout
void
define_section_symbols(Symbol_table*, const Target*);
// Define symbols from any linker script.
void
define_script_symbols(Symbol_table* symtab, const Target* target)
{ this->script_options_->add_symbols_to_table(symtab, target); }
// Return the Stringpool used for symbol names.
const Stringpool*
sympool() const
@ -241,11 +247,14 @@ class Layout
has_static_tls() const
{ return this->has_static_tls_; }
// Set the name of the entry symbol. This is used by linker scripts
// which look like regular objects.
void
set_entry(const char* entry)
{ this->entry_ = entry; }
// Return the options which may be set by a linker script.
Script_options*
script_options()
{ return this->script_options_; }
const Script_options*
script_options() const
{ return this->script_options_; }
// Dump statistical information to stderr.
void
@ -432,9 +441,8 @@ class Layout
// A reference to the options on the command line.
const General_options& options_;
// The name of the entry symbol. This is from the command line, or
// from a linker script, or is NULL.
const char* entry_;
// Information set by scripts or by command line options.
Script_options* script_options_;
// The output section names.
Stringpool namepool_;
// The output symbol names.