40fde48809
* configure.ac (HAVE_TR1_UNORDERED_MAP_REHASH): New define.
* configure: Regenerate.
* config.in: Regenerate.
* gold.h: Avoid std::tr1::unordered_map and std::tr1::unordered_set
if HAVE_TR1_UNORDERED_MAP_REHASH is not defined.
333 lines
8.8 KiB
C++
333 lines
8.8 KiB
C++
// gold.h -- general definitions for gold -*- C++ -*-
|
|
|
|
// Copyright 2006, 2007, 2008, 2009 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_GOLD_H
|
|
#define GOLD_GOLD_H
|
|
|
|
#include "config.h"
|
|
#include "ansidecl.h"
|
|
|
|
#include <cstddef>
|
|
#include <cstring>
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#ifndef ENABLE_NLS
|
|
// The Solaris version of locale.h always includes libintl.h. If we
|
|
// have been configured with --disable-nls then ENABLE_NLS will not
|
|
// be defined and the dummy definitions of bindtextdomain (et al)
|
|
// below will conflict with the defintions in libintl.h. So we
|
|
// define these values to prevent the bogus inclusion of libintl.h.
|
|
# define _LIBINTL_H
|
|
# define _LIBGETTEXT_H
|
|
#endif
|
|
|
|
// Always include <clocale> first to avoid conflicts with the macros
|
|
// used when ENABLE_NLS is not defined.
|
|
#include <clocale>
|
|
|
|
#ifdef ENABLE_NLS
|
|
# include <libintl.h>
|
|
# define _(String) gettext (String)
|
|
# ifdef gettext_noop
|
|
# define N_(String) gettext_noop (String)
|
|
# else
|
|
# define N_(String) (String)
|
|
# endif
|
|
#else
|
|
# define gettext(Msgid) (Msgid)
|
|
# define dgettext(Domainname, Msgid) (Msgid)
|
|
# define dcgettext(Domainname, Msgid, Category) (Msgid)
|
|
# define textdomain(Domainname) while (0) /* nothing */
|
|
# define bindtextdomain(Domainname, Dirname) while (0) /* nothing */
|
|
# define _(String) (String)
|
|
# define N_(String) (String)
|
|
#endif
|
|
|
|
// Figure out how to get a hash set and a hash map.
|
|
|
|
#if defined(HAVE_TR1_UNORDERED_SET) && defined(HAVE_TR1_UNORDERED_MAP) \
|
|
&& defined(HAVE_TR1_UNORDERED_MAP_REHASH)
|
|
|
|
#include <tr1/unordered_set>
|
|
#include <tr1/unordered_map>
|
|
|
|
// We need a template typedef here.
|
|
|
|
#define Unordered_set std::tr1::unordered_set
|
|
#define Unordered_map std::tr1::unordered_map
|
|
|
|
#define reserve_unordered_map(map, n) ((map)->rehash(n))
|
|
|
|
#elif defined(HAVE_EXT_HASH_MAP) && defined(HAVE_EXT_HASH_SET)
|
|
|
|
#include <ext/hash_map>
|
|
#include <ext/hash_set>
|
|
#include <string>
|
|
|
|
#define Unordered_set __gnu_cxx::hash_set
|
|
#define Unordered_map __gnu_cxx::hash_map
|
|
|
|
namespace __gnu_cxx
|
|
{
|
|
|
|
template<>
|
|
struct hash<std::string>
|
|
{
|
|
size_t
|
|
operator()(std::string s) const
|
|
{ return __stl_hash_string(s.c_str()); }
|
|
};
|
|
|
|
template<typename T>
|
|
struct hash<T*>
|
|
{
|
|
size_t
|
|
operator()(T* p) const
|
|
{ return reinterpret_cast<size_t>(p); }
|
|
};
|
|
|
|
}
|
|
|
|
#define reserve_unordered_map(map, n) ((map)->resize(n))
|
|
|
|
#else
|
|
|
|
// The fallback is to just use set and map.
|
|
|
|
#include <set>
|
|
#include <map>
|
|
|
|
#define Unordered_set std::set
|
|
#define Unordered_map std::map
|
|
|
|
#define reserve_unordered_map(map, n)
|
|
|
|
#endif
|
|
|
|
#ifndef HAVE_PREAD
|
|
extern "C" ssize_t pread(int, void*, size_t, off_t);
|
|
#endif
|
|
|
|
#ifndef HAVE_FTRUNCATE
|
|
extern "C" int ftruncate(int, off_t);
|
|
#endif
|
|
|
|
#ifndef HAVE_MREMAP
|
|
#define MREMAP_MAYMOVE 1
|
|
extern "C" void *mremap(void *, size_t, size_t, int, ...);
|
|
#endif
|
|
|
|
#ifndef HAVE_FFSLL
|
|
extern "C" int ffsll(long long);
|
|
#endif
|
|
|
|
namespace gold
|
|
{
|
|
|
|
// General declarations.
|
|
|
|
class General_options;
|
|
class Command_line;
|
|
class Input_argument_list;
|
|
class Dirsearch;
|
|
class Input_objects;
|
|
class Mapfile;
|
|
class Symbol;
|
|
class Symbol_table;
|
|
class Layout;
|
|
class Task;
|
|
class Workqueue;
|
|
class Output_file;
|
|
template<int size, bool big_endian>
|
|
struct Relocate_info;
|
|
|
|
// Some basic types. For these we use lower case initial letters.
|
|
|
|
// For an offset in an input or output file, use off_t. Note that
|
|
// this will often be a 64-bit type even for a 32-bit build.
|
|
|
|
// The size of a section if we are going to look at the contents.
|
|
typedef size_t section_size_type;
|
|
|
|
// An offset within a section when we are looking at the contents.
|
|
typedef ptrdiff_t section_offset_type;
|
|
|
|
// The name of the program as used in error messages.
|
|
extern const char* program_name;
|
|
|
|
// This function is called to exit the program. Status is true to
|
|
// exit success (0) and false to exit failure (1).
|
|
extern void
|
|
gold_exit(bool status) ATTRIBUTE_NORETURN;
|
|
|
|
// This function is called to emit an error message and then
|
|
// immediately exit with failure.
|
|
extern void
|
|
gold_fatal(const char* format, ...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1;
|
|
|
|
// This function is called to issue an error. This will cause gold to
|
|
// eventually exit with failure.
|
|
extern void
|
|
gold_error(const char* msg, ...) ATTRIBUTE_PRINTF_1;
|
|
|
|
// This function is called to issue a warning.
|
|
extern void
|
|
gold_warning(const char* msg, ...) ATTRIBUTE_PRINTF_1;
|
|
|
|
// This function is called to print an informational message.
|
|
extern void
|
|
gold_info(const char* msg, ...) ATTRIBUTE_PRINTF_1;
|
|
|
|
// Work around a bug in gcc 4.3.0. http://gcc.gnu.org/PR35546 . This
|
|
// can probably be removed after the bug has been fixed for a while.
|
|
#ifdef HAVE_TEMPLATE_ATTRIBUTES
|
|
#define TEMPLATE_ATTRIBUTE_PRINTF_4 ATTRIBUTE_PRINTF_4
|
|
#else
|
|
#define TEMPLATE_ATTRIBUTE_PRINTF_4
|
|
#endif
|
|
|
|
// This function is called to issue an error at the location of a
|
|
// reloc.
|
|
template<int size, bool big_endian>
|
|
extern void
|
|
gold_error_at_location(const Relocate_info<size, big_endian>*,
|
|
size_t, off_t, const char* format, ...)
|
|
TEMPLATE_ATTRIBUTE_PRINTF_4;
|
|
|
|
// This function is called to issue a warning at the location of a
|
|
// reloc.
|
|
template<int size, bool big_endian>
|
|
extern void
|
|
gold_warning_at_location(const Relocate_info<size, big_endian>*,
|
|
size_t, off_t, const char* format, ...)
|
|
TEMPLATE_ATTRIBUTE_PRINTF_4;
|
|
|
|
// This function is called to report an undefined symbol without
|
|
// a relocation (e.g., referenced by a dynamic object). SYM is
|
|
// the undefined symbol. The file name associated with the SYM
|
|
// is used to print a location for the undefined symbol.
|
|
extern void
|
|
gold_undefined_symbol(const Symbol*);
|
|
|
|
// This function is called to report an undefined symbol resulting
|
|
// from a relocation. SYM is the undefined symbol. RELINFO is the
|
|
// general relocation info. RELNUM is the number of the reloc,
|
|
// and RELOFFSET is the reloc's offset.
|
|
template<int size, bool big_endian>
|
|
extern void
|
|
gold_undefined_symbol_at_location(const Symbol*,
|
|
const Relocate_info<size, big_endian>*,
|
|
size_t, off_t);
|
|
|
|
// This is function is called in some cases if we run out of memory.
|
|
extern void
|
|
gold_nomem() ATTRIBUTE_NORETURN;
|
|
|
|
// This macro and function are used in cases which can not arise if
|
|
// the code is written correctly.
|
|
|
|
#define gold_unreachable() \
|
|
(gold::do_gold_unreachable(__FILE__, __LINE__, __FUNCTION__))
|
|
|
|
extern void do_gold_unreachable(const char*, int, const char*)
|
|
ATTRIBUTE_NORETURN;
|
|
|
|
// Assertion check.
|
|
|
|
#define gold_assert(expr) ((void)(!(expr) ? gold_unreachable(), 0 : 0))
|
|
|
|
// Print version information.
|
|
extern void
|
|
print_version(bool print_short);
|
|
|
|
// Get the version string.
|
|
extern const char*
|
|
get_version_string();
|
|
|
|
// Convert numeric types without unnoticed loss of precision.
|
|
template<typename To, typename From>
|
|
inline To
|
|
convert_types(const From from)
|
|
{
|
|
To to = from;
|
|
gold_assert(static_cast<From>(to) == from);
|
|
return to;
|
|
}
|
|
|
|
// A common case of convert_types<>: convert to section_size_type.
|
|
template<typename From>
|
|
inline section_size_type
|
|
convert_to_section_size_type(const From from)
|
|
{ return convert_types<section_size_type, From>(from); }
|
|
|
|
// Queue up the first set of tasks.
|
|
extern void
|
|
queue_initial_tasks(const General_options&,
|
|
Dirsearch&,
|
|
const Command_line&,
|
|
Workqueue*,
|
|
Input_objects*,
|
|
Symbol_table*,
|
|
Layout*,
|
|
Mapfile*);
|
|
|
|
// Queue up the set of tasks to be done before
|
|
// the middle set of tasks. Only used when garbage
|
|
// collection is to be done.
|
|
extern void
|
|
queue_middle_gc_tasks(const General_options&,
|
|
const Task*,
|
|
const Input_objects*,
|
|
Symbol_table*,
|
|
Layout*,
|
|
Workqueue*,
|
|
Mapfile*);
|
|
|
|
// Queue up the middle set of tasks.
|
|
extern void
|
|
queue_middle_tasks(const General_options&,
|
|
const Task*,
|
|
const Input_objects*,
|
|
Symbol_table*,
|
|
Layout*,
|
|
Workqueue*,
|
|
Mapfile*);
|
|
|
|
// Queue up the final set of tasks.
|
|
extern void
|
|
queue_final_tasks(const General_options&,
|
|
const Input_objects*,
|
|
const Symbol_table*,
|
|
Layout*,
|
|
Workqueue*,
|
|
Output_file* of);
|
|
|
|
inline bool
|
|
is_prefix_of(const char* prefix, const char* str)
|
|
{
|
|
return strncmp(prefix, str, strlen(prefix)) == 0;
|
|
}
|
|
|
|
} // End namespace gold.
|
|
|
|
#endif // !defined(GOLD_GOLD_H)
|