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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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40
gold/options.h
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@ -1,6 +1,6 @@
// options.h -- handle command line options 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.
@ -106,12 +106,12 @@ class Search_directory
class General_options
{
public:
General_options();
General_options(Script_options*);
// -e: set entry address.
const char*
entry() const
{ return this->entry_; }
{ return this->script_options_->entry(); }
// -E: export dynamic symbols.
bool
@ -277,6 +277,15 @@ class General_options
debug() const
{ return this->debug_; }
// Return the options which may be set from a linker script.
Script_options*
script_options()
{ return this->script_options_; }
const Script_options*
script_options() const
{ return this->script_options_; }
private:
// Don't copy this structure.
General_options(const General_options&);
@ -318,7 +327,7 @@ class General_options
void
set_entry(const char* arg)
{ this->entry_ = arg; }
{ this->script_options_->set_entry(arg, strlen(arg)); }
void
set_export_dynamic()
@ -396,6 +405,9 @@ class General_options
arg);
}
void
define_symbol(const char* arg);
void
set_demangle()
{ this->demangle_ = true; }
@ -518,7 +530,6 @@ class General_options
void
add_sysroot();
const char* entry_;
bool export_dynamic_;
const char* soname_;
const char* dynamic_linker_;
@ -546,6 +557,9 @@ class General_options
int thread_count_final_;
Execstack execstack_;
unsigned int debug_;
// Some options can also be set from linker scripts. Those are
// stored here.
Script_options* script_options_;
};
// The current state of the position dependent options.
@ -810,7 +824,7 @@ class Command_line
public:
typedef Input_arguments::const_iterator const_iterator;
Command_line();
Command_line(Script_options*);
// Process the command line options. This will exit with an
// appropriate error message if an unrecognized option is seen.
@ -834,11 +848,6 @@ class Command_line
void
end_group(const char* arg);
// Set the entry symbol from a linker script.
void
set_entry(const char* entry)
{ this->options_.set_entry(entry); }
// Get an option argument--a helper function for special processing.
const char*
get_special_argument(const char* longname, int argc, char** argv,
@ -855,6 +864,15 @@ class Command_line
position_dependent_options() const
{ return this->position_options_; }
// Get the options which may be set from a linker script.
Script_options*
script_options()
{ return this->options_.script_options(); }
const Script_options*
script_options() const
{ return this->options_.script_options(); }
// The number of input files.
int
number_of_input_files() const