1*fae548d3Szrj // dirsearch.h -- directory searching for gold -*- C++ -*- 2*fae548d3Szrj 3*fae548d3Szrj // Copyright (C) 2006-2020 Free Software Foundation, Inc. 4*fae548d3Szrj // Written by Ian Lance Taylor <iant@google.com>. 5*fae548d3Szrj 6*fae548d3Szrj // This file is part of gold. 7*fae548d3Szrj 8*fae548d3Szrj // This program is free software; you can redistribute it and/or modify 9*fae548d3Szrj // it under the terms of the GNU General Public License as published by 10*fae548d3Szrj // the Free Software Foundation; either version 3 of the License, or 11*fae548d3Szrj // (at your option) any later version. 12*fae548d3Szrj 13*fae548d3Szrj // This program is distributed in the hope that it will be useful, 14*fae548d3Szrj // but WITHOUT ANY WARRANTY; without even the implied warranty of 15*fae548d3Szrj // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16*fae548d3Szrj // GNU General Public License for more details. 17*fae548d3Szrj 18*fae548d3Szrj // You should have received a copy of the GNU General Public License 19*fae548d3Szrj // along with this program; if not, write to the Free Software 20*fae548d3Szrj // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21*fae548d3Szrj // MA 02110-1301, USA. 22*fae548d3Szrj 23*fae548d3Szrj #ifndef GOLD_DIRSEARCH_H 24*fae548d3Szrj #define GOLD_DIRSEARCH_H 25*fae548d3Szrj 26*fae548d3Szrj #include <string> 27*fae548d3Szrj #include <list> 28*fae548d3Szrj 29*fae548d3Szrj #include "options.h" 30*fae548d3Szrj #include "token.h" 31*fae548d3Szrj 32*fae548d3Szrj namespace gold 33*fae548d3Szrj { 34*fae548d3Szrj 35*fae548d3Szrj class General_options; 36*fae548d3Szrj class Workqueue; 37*fae548d3Szrj 38*fae548d3Szrj // A simple interface to manage directories to be searched for 39*fae548d3Szrj // libraries. 40*fae548d3Szrj 41*fae548d3Szrj class Dirsearch 42*fae548d3Szrj { 43*fae548d3Szrj public: Dirsearch()44*fae548d3Szrj Dirsearch() 45*fae548d3Szrj : directories_(NULL), token_(true) 46*fae548d3Szrj { } 47*fae548d3Szrj 48*fae548d3Szrj // Set the list of directories to search. 49*fae548d3Szrj void 50*fae548d3Szrj initialize(Workqueue*, const General_options::Dir_list*); 51*fae548d3Szrj 52*fae548d3Szrj // Search for a file, giving one or two names to search for (the 53*fae548d3Szrj // second one may be empty). Return a full path name for the file, 54*fae548d3Szrj // or the empty string if it could not be found. This may only be 55*fae548d3Szrj // called if the token is not blocked. Set *IS_IN_SYSROOT if the 56*fae548d3Szrj // file was found in a directory which is in the sysroot. *PINDEX 57*fae548d3Szrj // should be set to zero the first time this is called; it will be 58*fae548d3Szrj // updated with the index of the directory where the file is found, 59*fae548d3Szrj // and that value plus one may be used to find the next file with 60*fae548d3Szrj // the same name(s). 61*fae548d3Szrj std::string 62*fae548d3Szrj find(const std::vector<std::string>& names, bool* is_in_sysroot, 63*fae548d3Szrj int* pindex, std::string *found_name) const; 64*fae548d3Szrj 65*fae548d3Szrj // Return the blocker token which controls access. 66*fae548d3Szrj Task_token* token()67*fae548d3Szrj token() 68*fae548d3Szrj { return &this->token_; } 69*fae548d3Szrj 70*fae548d3Szrj // Search for a file in a directory list. This is a low-level function and 71*fae548d3Szrj // therefore can be used before options and parameters are set. 72*fae548d3Szrj static std::string 73*fae548d3Szrj find_file_in_dir_list(const std::string& name, 74*fae548d3Szrj const General_options::Dir_list& directories, 75*fae548d3Szrj const std::string& extra_search_dir); 76*fae548d3Szrj 77*fae548d3Szrj private: 78*fae548d3Szrj // We can not copy this class. 79*fae548d3Szrj Dirsearch(const Dirsearch&); 80*fae548d3Szrj Dirsearch& operator=(const Dirsearch&); 81*fae548d3Szrj 82*fae548d3Szrj // Directories to search. 83*fae548d3Szrj const General_options::Dir_list* directories_; 84*fae548d3Szrj // Blocker token to control access from tasks. 85*fae548d3Szrj Task_token token_; 86*fae548d3Szrj }; 87*fae548d3Szrj 88*fae548d3Szrj } // End namespace gold. 89*fae548d3Szrj 90*fae548d3Szrj #endif // !defined(GOLD_DIRSEARCH_H) 91