1 | //####COPYRIGHTBEGIN#### |
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2 | // |
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3 | // ---------------------------------------------------------------------------- |
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4 | // Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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5 | // |
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6 | // This program is part of the eCos host tools. |
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7 | // |
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8 | // This program is free software; you can redistribute it and/or modify it |
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9 | // under the terms of the GNU General Public License as published by the Free |
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10 | // Software Foundation; either version 2 of the License, or (at your option) |
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11 | // any later version. |
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12 | // |
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13 | // This program is distributed in the hope that it will be useful, but WITHOUT |
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14 | // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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16 | // more details. |
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17 | // |
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18 | // You should have received a copy of the GNU General Public License along with |
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19 | // this program; if not, write to the Free Software Foundation, Inc., |
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20 | // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 | // |
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22 | // ---------------------------------------------------------------------------- |
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23 | // |
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24 | //####COPYRIGHTEND#### |
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25 | //========================================================================== |
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26 | // |
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27 | // flags.cxx |
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28 | // |
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29 | // The implementation of build flags extraction from CDL data |
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30 | // |
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31 | //========================================================================== |
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32 | //========================================================================== |
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33 | //#####DESCRIPTIONBEGIN#### |
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34 | // |
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35 | // Author(s): jld |
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36 | // Date: 1999-11-08 |
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37 | // |
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38 | //####DESCRIPTIONEND#### |
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39 | //========================================================================== |
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40 | |
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41 | #include "flags.hxx" |
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42 | #include <cctype> |
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43 | |
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44 | static const std::string GLOBAL_FLAGS_PREFIX = "CYGBLD_GLOBAL_"; |
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45 | static const std::string ADD_FLAGS_SUFFIX = "_ADD"; |
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46 | static const std::string REMOVE_FLAGS_SUFFIX = "_REMOVE"; |
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47 | |
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48 | // convert a string of space-separated values into a list of strings |
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49 | static void string_to_list (std::string input, std::list <std::string> & output) { |
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50 | std::string item; |
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51 | bool space = true; |
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52 | output.clear (); |
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53 | |
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54 | for (unsigned int n = 0; n < input.size (); n++) { // for each char in the string |
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55 | if (isspace (input [n])) { // if char is a space |
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56 | if (! space) { // if previous char not a space |
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57 | output.push_back (item); // add item to output list |
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58 | item.erase (); // clear item string |
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59 | space = true; |
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60 | } |
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61 | } else { // char is not a space |
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62 | item += input [n]; // add char to item string |
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63 | space = false; |
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64 | } |
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65 | } |
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66 | |
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67 | if (! space) { // if final char not a space |
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68 | output.push_back (item); // add final item to output list |
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69 | } |
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70 | } |
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71 | |
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72 | // convert a list of strings into a string of space-separated values |
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73 | static std::string list_to_string (std::list <std::string> & input) { |
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74 | std::string output; |
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75 | |
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76 | for (std::list <std::string>::iterator item = input.begin (); item != input.end (); item++) { // for each item in the list |
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77 | output += * item + " "; // add item to output string followed by a space |
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78 | } |
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79 | |
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80 | if (! output.empty ()) { // if the output string is not empty |
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81 | output.resize (output.size () - 1); // remove the trailing space |
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82 | } |
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83 | |
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84 | return output; |
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85 | } |
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86 | |
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87 | // return the build flags of the specified category |
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88 | std::string get_flags (const CdlConfiguration config, const CdlBuildInfo_Loadable * build_info, const std::string flag_category) { |
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89 | std::list <std::string> flags_list; |
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90 | |
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91 | CdlValuable global_flags = dynamic_cast <CdlValuable> (config->lookup (GLOBAL_FLAGS_PREFIX + flag_category)); |
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92 | if (global_flags) { // if there are global flags |
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93 | string_to_list (global_flags->get_value (), flags_list); |
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94 | } |
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95 | |
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96 | if (build_info) { // if the caller requires flags specific to a particular loadable |
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97 | // process flags to be removed |
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98 | CdlValuable remove_flags = dynamic_cast <CdlValuable> (config->lookup (build_info->name + "_" + flag_category + REMOVE_FLAGS_SUFFIX)); |
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99 | if (remove_flags) { // if there are flags to be removed |
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100 | std::list <std::string> remove_flags_list; |
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101 | string_to_list (remove_flags->get_value (), remove_flags_list); |
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102 | for (std::list <std::string>::iterator item = remove_flags_list.begin (); item != remove_flags_list.end (); item++) { |
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103 | flags_list.remove (* item); // remove the flag from the list |
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104 | } |
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105 | } |
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106 | |
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107 | // process flags to be added |
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108 | CdlValuable add_flags = dynamic_cast <CdlValuable> (config->lookup (build_info->name + "_" + flag_category + ADD_FLAGS_SUFFIX)); |
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109 | if (add_flags) { // if there are flags to be added |
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110 | std::list <std::string> add_flags_list; |
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111 | string_to_list (add_flags->get_value (), add_flags_list); |
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112 | flags_list.splice (flags_list.end (), add_flags_list); // splice the additional flags onto the end of the list |
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113 | } |
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114 | } |
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115 | |
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116 | return list_to_string (flags_list); |
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117 | } |
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