1 | /* |
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2 | * Copyright (c) 2011, Chris Johns <chrisj@rtems.org> |
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3 | * |
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4 | * Permission to use, copy, modify, and/or distribute this software for any |
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5 | * purpose with or without fee is hereby granted, provided that the above |
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6 | * copyright notice and this permission notice appear in all copies. |
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7 | * |
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8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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15 | */ |
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16 | /** |
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17 | * @file |
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18 | * |
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19 | * @ingroup rtems-ld |
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20 | * |
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21 | * @brief RTEMS Linker readies the RTEMS object files for dynamic linking. |
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22 | * |
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23 | */ |
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24 | |
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25 | #if !defined (_RLD_H_) |
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26 | #define _RLD_H_ |
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27 | |
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28 | #include <iostream> |
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29 | #include <sstream> |
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30 | #include <string> |
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31 | |
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32 | /** |
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33 | * Path handling for Windows. |
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34 | */ |
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35 | #if __WIN32__ |
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36 | #define RLD_PATH_SEPARATOR '\\' |
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37 | #define RLD_PATHSTR_SEPARATOR ';' |
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38 | #define RLD_PATHSTR_SEPARATOR_STR ";" |
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39 | #define RLD_DRIVE_SEPARATOR (1) |
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40 | #else |
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41 | #define RLD_PATH_SEPARATOR '/' |
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42 | #define RLD_PATHSTR_SEPARATOR ':' |
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43 | #define RLD_PATHSTR_SEPARATOR_STR ":" |
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44 | #define RLD_DRIVE_SEPARATOR (0) |
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45 | #endif |
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46 | |
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47 | namespace rld |
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48 | { |
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49 | /** |
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50 | * Forward declarations. |
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51 | */ |
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52 | namespace files |
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53 | { |
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54 | class file; |
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55 | class image; |
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56 | class archive; |
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57 | class object; |
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58 | } |
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59 | } |
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60 | |
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61 | #include <rld-elf-types.h> |
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62 | #include <rld-symbols.h> |
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63 | #include <rld-elf.h> |
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64 | #include <rld-files.h> |
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65 | |
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66 | /** |
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67 | * The debug levels. |
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68 | */ |
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69 | #define RLD_VERBOSE_OFF (0) |
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70 | #define RLD_VERBOSE_INFO (1) |
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71 | #define RLD_VERBOSE_DETAILS (2) |
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72 | #define RLD_VERBOSE_TRACE (3) |
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73 | #define RLD_VERBOSE_TRACE_SYMS (4) |
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74 | #define RLD_VERBOSE_TRACE_FILE (5) |
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75 | #define RLD_VERBOSE_FULL_DEBUG (6) |
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76 | |
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77 | namespace rld |
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78 | { |
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79 | /** |
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80 | * Convert a supported type to a string. |
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81 | */ |
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82 | template <class T> |
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83 | std::string to_string (T t, std::ios_base & (*f)(std::ios_base&) = std::dec) |
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84 | { |
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85 | std::ostringstream oss; |
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86 | oss << f << t; |
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87 | return oss.str(); |
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88 | } |
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89 | |
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90 | /** |
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91 | * General error. |
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92 | */ |
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93 | struct error |
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94 | { |
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95 | const std::string what; |
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96 | const std::string where; |
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97 | |
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98 | error (const std::ostringstream& what, const std::string& where) : |
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99 | what (what.str ()), where (where) { |
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100 | } |
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101 | |
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102 | error (const std::string& what, const std::string& where) : |
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103 | what (what), where (where) { |
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104 | } |
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105 | }; |
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106 | |
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107 | /** |
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108 | * A convenience macro to make where a file and line number. |
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109 | */ |
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110 | #define rld_error_at(_what) \ |
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111 | rld::error (_what, std::string (__FILE__) + ":" + to_string (__LINE__)) |
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112 | |
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113 | /** |
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114 | * Increment the verbose level. |
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115 | */ |
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116 | void verbose_inc (); |
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117 | |
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118 | /** |
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119 | * Return the verbose level. Setting the flag more than once raises the |
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120 | * level. |
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121 | */ |
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122 | int verbose (); |
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123 | |
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124 | /** |
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125 | * The version string. |
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126 | */ |
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127 | const std::string version (); |
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128 | |
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129 | /** |
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130 | * The RTEMS version string. |
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131 | */ |
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132 | const std::string rtems_version (); |
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133 | |
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134 | /** |
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135 | * Container of strings to hold the results of a split. |
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136 | */ |
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137 | typedef std::vector < std::string > strings; |
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138 | |
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139 | /** |
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140 | * Split a string into strings by the separator. |
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141 | */ |
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142 | void split (const std::string& str, strings& strs, char separator); |
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143 | |
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144 | /** |
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145 | * Map of the symbol table. |
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146 | */ |
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147 | void map (rld::files::cache& cache, rld::symbols::table& symbols); |
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148 | |
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149 | /** |
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150 | * Warn is externals in referenced object files are not used. |
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151 | */ |
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152 | void warn_unused_externals (rld::files::object_list& objects); |
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153 | } |
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154 | |
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155 | #endif |
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