// gold.h -- general definitions 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_GOLD_H #define GOLD_GOLD_H #include "config.h" #include "ansidecl.h" #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) #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 #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); } }; } #else // The fallback is to just use set and map. #include <set> #include <map> #define Unordered_set std::set #define Unordered_map std::map #endif #ifndef HAVE_PREAD extern "C" ssize_t pread(int, void*, size_t, off_t); #endif namespace gold { // This is a hack to work around a problem with older versions of g++. // The problem is that they don't support calling a member template by // specifying the template parameters. It works to pass in an // argument for argument dependent lookup. // To use this, the member template method declaration should put // ACCEPT_SIZE or ACCEPT_SIZE_ENDIAN after the last parameter. If the // method takes no parameters, use ACCEPT_SIZE_ONLY or // ACCEPT_SIZE_ENDIAN_ONLY. // When calling the method, instead of using fn<size>, use fn // SELECT_SIZE_NAME or SELECT_SIZE_ENDIAN_NAME. And after the last // argument, put SELECT_SIZE(size) or SELECT_SIZE_ENDIAN(size, // big_endian). If there is only one argment, use the _ONLY variants. #ifdef HAVE_MEMBER_TEMPLATE_SPECIFICATIONS #define SELECT_SIZE_NAME(size) <size> #define SELECT_SIZE(size) #define SELECT_SIZE_ONLY(size) #define ACCEPT_SIZE #define ACCEPT_SIZE_ONLY #define ACCEPT_SIZE_EXPLICIT(size) #define SELECT_SIZE_ENDIAN_NAME(size, big_endian) <size, big_endian> #define SELECT_SIZE_ENDIAN(size, big_endian) #define SELECT_SIZE_ENDIAN_ONLY(size, big_endian) #define ACCEPT_SIZE_ENDIAN #define ACCEPT_SIZE_ENDIAN_ONLY #define ACCEPT_SIZE_ENDIAN_EXPLICIT(size, big_endian) #else // !defined(HAVE_MEMBER_TEMPLATE_SPECIFICATIONS) template<int size> class Select_size { }; template<int size, bool big_endian> class Select_size_endian { }; #define SELECT_SIZE_NAME(size) #define SELECT_SIZE(size) , Select_size<size>() #define SELECT_SIZE_ONLY(size) Select_size<size>() #define ACCEPT_SIZE , Select_size<size> #define ACCEPT_SIZE_ONLY Select_size<size> #define ACCEPT_SIZE_EXPLICIT(size) , Select_size<size> #define SELECT_SIZE_ENDIAN_NAME(size, big_endian) #define SELECT_SIZE_ENDIAN(size, big_endian) \ , Select_size_endian<size, big_endian>() #define SELECT_SIZE_ENDIAN_ONLY(size, big_endian) \ Select_size_endian<size, big_endian>() #define ACCEPT_SIZE_ENDIAN , Select_size_endian<size, big_endian> #define ACCEPT_SIZE_ENDIAN_ONLY Select_size_endian<size, big_endian> #define ACCEPT_SIZE_ENDIAN_EXPLICIT(size, big_endian) \ , Select_size_endian<size, big_endian> #endif // !defined(HAVE_MEMBER_TEMPLATE_SPECIFICATIONS) // General declarations. class General_options; class Command_line; class Input_argument_list; class Dirsearch; class Input_objects; 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 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, ...) 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, ...) ATTRIBUTE_PRINTF_4; // This function is called to report an undefined symbol. template<int size, bool big_endian> extern void gold_undefined_symbol(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*); // Queue up the middle set of tasks. extern void queue_middle_tasks(const General_options&, const Task*, const Input_objects*, Symbol_table*, Layout*, Workqueue*); // 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); } // End namespace gold. #endif // !defined(GOLD_GOLD_H)