darling-gdb/gold/parameters.h
Ian Lance Taylor 15f8229bbf * readsyms.cc (Read_symbols::incompatible_warning): New function.
(Read_symbols::requeue): New function.
	(Read_symbols::do_read_symbols): If make_elf_object fails because
	the target type is not configured, and the file was searched for,
	issue a warning and retry with the next directory.
	(Add_symbols::run): If the file has an incompatible format, and
	it was searched for, requeue the Read_symbols task.  On error,
	release the object.
	* readsyms.h (class Read_symbols): Add dirindex_ field.  Add
	dirindex parameter to constructor.  Change all callers.  Declare
	incompatible_warning and requeue.
	(class Add_symbols): Add dirpath_, dirindex_, mapfile_,
	input_argument_ and input_group_ fields.  Add them to
	constructor.  Change all callers.
	(class Read_script): Add dirindex_ field.  Add it to constructor.
	Change all callers.
	* archive.cc (Archive::setup): Remove input_objects parameter.
	Change all callers.
	(Archive::get_file_and_offset): Likewise.
	(Archive::read_all_symbols): Likewise.
	(Archive::read_symbols): Likewise.
	(Archive::get_elf_object_for_member): Remove input_objects
	parameter.  Add punconfigured parameter.  Change all callers.
	(Archive::add_symbols): Change return type to bool.  Check return
	value of include_member.
	(Archive::include_all_members): Likewise.
	(Archive::include_member): Change return type to bool.  Return
	false if first included object has incompatible target.  Set
	included_member_ field.
	(Add_archive_symbols::run): If add_symbols returns false, requeue
	Read_symbols task.
	* archive.h (class Archive): Add included_member_ field.
	Initialize it in constructor.  Add input_file and searched_for
	methods.  Update declarations.
	(class Add_archive_symbols): Add dirpath_, dirindex_, and
	input_argument_ fields.  Add them to constructor.  Change all
	callers.
	* script.cc: Include "target-select.h".
	(class Parser_closure): Add skip_on_incompatible_target_ and
	found_incompatible_target_ fields.  Add
	skip_on_incompatible_target parameter to constructor.  Change all
	callers.  Add methods skip_on_incompatible_target,
	clear_skip_on_incompatible_target, found_incompatible_target, and
	set_found_incompatible_target.
	(read_input_script): Add dirindex parameter.  Change all callers.
	If parser finds an incompatible target, requeue Read_symbols
	task.
	(script_set_symbol): Clear skip_on_incompatible_target in
	closure.
	(script_add_assertion, script_parse_option): Likewise.
	(script_start_sections, script_add_phdr): Likewise.
	(script_check_output_format): New function.
	* script.h (read_input_script): Update declaration.
	* script-c.h (script_check_output_format): Declare.
	* yyscript.y (file_cmd): Handle OUTPUT_FORMAT.
	(ignore_cmd): Remove OUTPUT_FORMAT.
	* fileread.cc (Input_file::Input_file): Add explicit this.
	(Input_file::will_search_for): New function.
	(Input_file::open): Add pindex parameter.  Change all callers.
	* fileread.h (class Input_file): Add input_file_argument method.
	Declare will_search_for.  Update declarations.
	* object.cc (make_elf_object): Add punconfigured parameter.
	Change all callers.
	* object.h (class Object): Make input_file public.  Add
	searched_for method.
	(make_elf_object): Update declaration.
	* dirsearch.cc (Dirsearch::find): Add pindex parameter.  Use it to
	restart search.
	* dirsearch.h (class Dirsearch): Update declaration.
	* options.h (class General_options): Add --warn-search-mismatch.
	* parameters.cc (Parameters::is_compatible_target): New function.
	* parameters.h (class Parameters): Declare is_compatible_target.
	* workqueue.cc (Workqueue::add_blocker): New function.
	* workqueue.h (class Workqueue): Declare add_blocker.
2009-03-14 05:56:46 +00:00

177 lines
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C++

// parameters.h -- general parameters for a link using gold -*- C++ -*-
// Copyright 2006, 2007, 2008 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_PARAMETERS_H
#define GOLD_PARAMETERS_H
namespace gold
{
class General_options;
class Errors;
class Target;
// Here we define the Parameters class which simply holds simple
// general parameters which apply to the entire link. We use a global
// variable for this. The parameters class holds three types of data:
// 1) An Errors struct. Any part of the code that wants to log an
// error can use parameters->errors().
// 2) A const General_options. These are the options as read on
// the commandline.
// 3) Target information, such as size and endian-ness. This is
// available as soon as we've decided on the Target (after
// parsing the first .o file).
// 4) Whether we're doing a static link or not. This is set
// after all inputs have been read and we know if any is a
// dynamic library.
class Parameters
{
public:
Parameters()
: errors_(NULL), options_(NULL), target_(NULL),
doing_static_link_valid_(false), doing_static_link_(false),
debug_(0)
{ }
// These should be called as soon as they are known.
void
set_errors(Errors* errors);
void
set_options(const General_options* options);
void
set_target(const Target* target);
void
set_doing_static_link(bool doing_static_link);
// Return the error object.
Errors*
errors() const
{ return this->errors_; }
// Whether the options are valid. This should not normally be
// called, but it is needed by gold_exit.
bool
options_valid() const
{ return this->options_ != NULL; }
// Return the options object.
const General_options&
options() const
{
gold_assert(this->options_valid());
return *this->options_;
}
// Return whether the target field has been set.
bool
target_valid() const
{ return this->target_ != NULL; }
// The target of the output file we are generating.
const Target&
target() const
{
gold_assert(this->target_valid());
return *this->target_;
}
// When we don't have an output file to associate a target, make a
// default one, with guesses about size and endianness.
const Target&
default_target() const;
// Return true if TARGET is compatible with the current target.
bool
is_compatible_target(const Target*) const;
bool
doing_static_link() const
{
gold_assert(this->doing_static_link_valid_);
return this->doing_static_link_;
}
// This is just a copy of options().debug(). We make a copy so we
// don't have to #include options.h in order to inline
// is_debugging_enabled, below.
int
debug() const
{
// This can be called before the options are set up.
if (!this->options_valid())
return 0;
return debug_;
}
// A convenience routine for combining size and endianness. It also
// checks the HAVE_TARGET_FOO configure options and dies if the
// current target's size/endianness is not supported according to
// HAVE_TARGET_FOO. Otherwise it returns this enum
enum Target_size_endianness
{ TARGET_32_LITTLE, TARGET_32_BIG, TARGET_64_LITTLE, TARGET_64_BIG };
Target_size_endianness
size_and_endianness() const;
private:
Errors* errors_;
const General_options* options_;
const Target* target_;
bool doing_static_link_valid_;
bool doing_static_link_;
int debug_;
};
// This is a global variable.
extern const Parameters* parameters;
// We use free functions for these since they affect a global variable
// that is internal to parameters.cc.
extern void
set_parameters_errors(Errors* errors);
extern void
set_parameters_options(const General_options* options);
extern void
set_parameters_target(const Target* target);
extern void
set_parameters_doing_static_link(bool doing_static_link);
// Return whether we are doing a particular debugging type. The
// argument is one of the flags from debug.h.
inline bool
is_debugging_enabled(unsigned int type)
{ return (parameters->debug() & type) != 0; }
} // End namespace gold.
#endif // !defined(GOLD_PARAMETERS_H)