1 | /* |
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2 | * Copyright (c) 2011-2014, 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 | #include <string.h> |
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18 | |
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19 | #include <fstream> |
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20 | |
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21 | #include <rld.h> |
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22 | #include <rld-cc.h> |
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23 | #include <rld-process.h> |
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24 | #include <rld-rtems.h> |
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25 | |
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26 | namespace rld |
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27 | { |
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28 | namespace cc |
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29 | { |
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30 | static std::string cc; //< The CC executable as absolute path. |
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31 | static bool cc_set; //< True when the CC has been set. |
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32 | static std::string cc_name = "gcc"; //< The CC name, ie gcc, clang. |
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33 | static std::string exec_prefix; //< The CC executable prefix. |
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34 | |
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35 | static std::string cppflags; //< The CPP flags. |
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36 | static std::string cflags; //< The CC flags. |
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37 | static std::string cxxflags; //< The CXX flags. |
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38 | static std::string ldflags; //< The LD flags. |
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39 | |
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40 | static std::string warning_cflags; //< The warning flags in cflags. |
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41 | static std::string include_cflags; //< The include flags in cflags. |
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42 | static std::string machine_cflags; //< The machine flags in cflags. |
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43 | static std::string spec_cflags; //< The spec flags in cflags. |
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44 | |
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45 | static std::string install_path; //< The CC reported install path. |
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46 | static std::string programs_path; //< The CC reported programs path. |
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47 | static std::string libraries_path; //< The CC reported libraries path. |
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48 | |
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49 | /** |
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50 | * The list of standard libraries. |
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51 | */ |
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52 | #define RPS RLD_PATHSTR_SEPARATOR_STR |
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53 | static const char* std_lib_c = "libgcc.a" RPS "libssp.a" RPS "libc.a"; |
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54 | static const char* std_lib_cplusplus = "libstdc++.a"; |
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55 | |
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56 | const std::string |
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57 | strip_cflags (const std::string& flags) |
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58 | { |
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59 | std::string oflags; |
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60 | rld::strings flags_; |
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61 | rld::split (flags_, flags); |
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62 | |
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63 | for (rld::strings::iterator si = flags_.begin (); |
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64 | si != flags_.end (); |
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65 | ++si) |
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66 | { |
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67 | if (!rld::starts_with ((*si), "-O") && !rld::starts_with ((*si), "-g")) |
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68 | oflags += ' ' + *si; |
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69 | } |
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70 | |
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71 | return rld::trim (oflags); |
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72 | } |
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73 | |
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74 | const std::string |
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75 | filter_flags (const std::string& flags, |
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76 | const std::string& , |
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77 | const std::string& , |
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78 | flag_type type, |
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79 | std::string& warnings, |
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80 | std::string& includes, |
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81 | std::string& machines, |
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82 | std::string& specs) |
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83 | { |
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84 | /* |
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85 | * Defintion of flags to be filtered. |
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86 | */ |
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87 | enum flag_group |
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88 | { |
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89 | fg_warning, |
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90 | fg_include, |
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91 | fg_machine, |
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92 | fg_specs |
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93 | }; |
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94 | struct flag_def |
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95 | { |
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96 | flag_group group; ///< The group this flag belong to. |
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97 | const char* opt; ///< Option start. |
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98 | int count; ///< Number of arguments with the option. |
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99 | bool path; ///< Is this a path ? |
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100 | int out; ///< If the flag type is set drop the opt.. |
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101 | }; |
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102 | const flag_def flag_defs[] = |
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103 | { |
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104 | { fg_warning, "-W", 1, false, ft_cppflags | ft_cflags | ft_ldflags }, |
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105 | { fg_include, "-I", 2, true, 0 }, |
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106 | { fg_include, "-isystem", 2, true, 0 }, |
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107 | { fg_include, "-sysroot", 2, true, 0 }, |
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108 | { fg_machine, "-O", 1, false, 0 }, |
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109 | { fg_machine, "-m", 1, false, 0 }, |
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110 | { fg_machine, "-f", 1, false, 0 }, |
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111 | { fg_specs, "-q", 1, false, 0 }, |
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112 | { fg_specs, "-B", 2, true, 0 }, |
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113 | { fg_specs, "--specs", 2, false, 0 } |
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114 | }; |
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115 | const int flag_def_size = sizeof (flag_defs) / sizeof (flag_def); |
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116 | |
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117 | std::string oflags; |
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118 | rld::strings flags_; |
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119 | |
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120 | rld::split (flags_, strip_cflags (flags)); |
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121 | |
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122 | warnings.clear (); |
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123 | includes.clear (); |
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124 | machines.clear (); |
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125 | specs.clear (); |
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126 | |
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127 | for (rld::strings::iterator si = flags_.begin (); |
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128 | si != flags_.end (); |
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129 | ++si) |
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130 | { |
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131 | std::string opts; |
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132 | std::string& opt = *(si); |
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133 | bool in = true; |
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134 | |
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135 | for (int fd = 0; fd < flag_def_size; ++fd) |
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136 | { |
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137 | if (rld::starts_with (opt, flag_defs[fd].opt)) |
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138 | { |
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139 | int opt_count = flag_defs[fd].count; |
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140 | if (opt_count > 1) |
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141 | { |
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142 | /* |
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143 | * See if the flag is just the option. If is not take one less |
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144 | * because the option's argument is joined to the option. |
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145 | */ |
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146 | if (opt != flag_defs[fd].opt) |
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147 | { |
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148 | opt_count -= 1; |
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149 | /* |
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150 | * @todo Path processing here. Not sure what it is needed for. |
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151 | */ |
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152 | } |
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153 | } |
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154 | opts += ' ' + opt; |
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155 | while (opt_count > 1) |
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156 | { |
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157 | ++si; |
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158 | /* |
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159 | * @todo Path processing here. Not sure what it is needed for. |
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160 | */ |
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161 | opts += ' ' + (*si); |
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162 | --opt_count; |
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163 | } |
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164 | switch (flag_defs[fd].group) |
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165 | { |
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166 | case fg_warning: |
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167 | warnings += ' ' + opts; |
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168 | break; |
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169 | case fg_include: |
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170 | includes += ' ' + opts; |
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171 | break; |
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172 | case fg_machine: |
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173 | machines += ' ' + opts; |
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174 | break; |
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175 | case fg_specs: |
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176 | specs += ' ' + opts; |
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177 | break; |
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178 | default: |
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179 | throw rld::error ("Invalid group", "flag group"); |
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180 | } |
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181 | if ((flag_defs[fd].out & type) != 0) |
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182 | in = false; |
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183 | break; |
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184 | } |
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185 | } |
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186 | |
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187 | if (in) |
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188 | oflags += ' ' + opts; |
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189 | } |
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190 | |
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191 | rld::trim (warnings); |
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192 | rld::trim (includes); |
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193 | rld::trim (machines); |
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194 | rld::trim (specs); |
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195 | |
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196 | return rld::trim (oflags); |
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197 | } |
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198 | |
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199 | const std::string |
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200 | filter_flags (const std::string& flags, |
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201 | const std::string& arch, |
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202 | const std::string& path, |
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203 | flag_type type) |
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204 | { |
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205 | if (type != ft_cflags) |
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206 | { |
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207 | std::string warnings; |
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208 | std::string includes; |
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209 | std::string machines; |
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210 | std::string specs; |
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211 | return filter_flags (flags, |
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212 | arch, |
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213 | path, |
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214 | type, |
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215 | warnings, |
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216 | includes, |
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217 | machines, |
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218 | specs); |
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219 | } |
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220 | else |
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221 | { |
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222 | return filter_flags (flags, |
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223 | arch, |
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224 | path, |
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225 | type, |
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226 | warning_cflags, |
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227 | include_cflags, |
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228 | machine_cflags, |
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229 | spec_cflags); |
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230 | } |
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231 | } |
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232 | |
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233 | void |
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234 | set_cc (const std::string& cc_) |
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235 | { |
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236 | cc = cc_; |
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237 | cc_set = true; |
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238 | } |
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239 | |
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240 | const std::string |
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241 | get_cc () |
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242 | { |
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243 | return cc; |
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244 | } |
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245 | |
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246 | bool |
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247 | is_cc_set () |
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248 | { |
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249 | return cc_set; |
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250 | } |
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251 | |
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252 | void |
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253 | set_exec_prefix (const std::string& exec_prefix_) |
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254 | { |
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255 | exec_prefix = exec_prefix_; |
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256 | } |
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257 | |
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258 | const std::string |
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259 | get_exec_prefix () |
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260 | { |
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261 | return exec_prefix; |
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262 | } |
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263 | |
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264 | bool is_exec_prefix_set () |
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265 | { |
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266 | return !exec_prefix.empty (); |
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267 | } |
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268 | |
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269 | void |
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270 | set_flags (const std::string& flags, |
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271 | const std::string& arch, |
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272 | const std::string& path, |
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273 | flag_type type) |
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274 | { |
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275 | std::string* oflags; |
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276 | switch (type) |
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277 | { |
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278 | case ft_cppflags: |
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279 | oflags = &cppflags; |
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280 | break; |
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281 | case ft_cflags: |
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282 | oflags = &cflags; |
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283 | break; |
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284 | case ft_cxxflags: |
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285 | oflags = &cxxflags; |
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286 | break; |
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287 | case ft_ldflags: |
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288 | oflags = &ldflags; |
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289 | break; |
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290 | default: |
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291 | throw rld::error ("Invalid flag type", "CC set flags"); |
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292 | } |
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293 | (*oflags) = filter_flags (flags, arch, path, type); |
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294 | } |
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295 | |
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296 | void |
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297 | set_flags (const std::string& flags, flag_type type) |
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298 | { |
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299 | std::string arch; |
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300 | std::string path; |
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301 | set_flags (flags, arch, path, type); |
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302 | } |
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303 | |
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304 | void |
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305 | append_flags (const std::string& flags, |
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306 | const std::string& arch, |
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307 | const std::string& path, |
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308 | flag_type type) |
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309 | { |
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310 | std::string* oflags; |
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311 | switch (type) |
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312 | { |
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313 | case ft_cppflags: |
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314 | oflags = &cppflags; |
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315 | break; |
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316 | case ft_cflags: |
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317 | oflags = &cflags; |
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318 | break; |
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319 | case ft_cxxflags: |
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320 | oflags = &cxxflags; |
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321 | break; |
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322 | case ft_ldflags: |
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323 | oflags = &ldflags; |
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324 | break; |
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325 | default: |
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326 | throw rld::error ("Invalid flag type", "CC set flags"); |
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327 | } |
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328 | if (oflags->empty ()) |
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329 | *oflags += filter_flags (flags, arch, path, type); |
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330 | else |
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331 | *oflags += ' ' + filter_flags (flags, arch, path, type); |
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332 | } |
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333 | |
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334 | void |
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335 | append_flags (const std::string& flags, flag_type type) |
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336 | { |
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337 | std::string arch; |
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338 | std::string path; |
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339 | append_flags (flags, arch, path, type); |
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340 | } |
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341 | |
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342 | const std::string |
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343 | get_flags (flag_type type) |
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344 | { |
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345 | std::string* flags; |
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346 | switch (type) |
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347 | { |
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348 | case ft_cppflags: |
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349 | flags = &cppflags; |
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350 | break; |
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351 | case ft_cflags: |
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352 | flags = &cflags; |
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353 | break; |
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354 | case ft_cxxflags: |
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355 | flags = &cxxflags; |
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356 | break; |
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357 | case ft_ldflags: |
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358 | flags = &ldflags; |
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359 | break; |
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360 | default: |
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361 | throw rld::error ("Invalid flag type", "CC get flags"); |
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362 | } |
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363 | return *flags; |
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364 | } |
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365 | |
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366 | const std::string |
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367 | get_flags (flag_group group) |
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368 | { |
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369 | std::string* flags; |
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370 | switch (group) |
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371 | { |
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372 | case fg_warning_flags: |
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373 | flags = &warning_cflags; |
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374 | break; |
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375 | case fg_include_flags: |
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376 | flags = &include_cflags; |
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377 | break; |
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378 | case fg_machine_flags: |
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379 | flags = &machine_cflags; |
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380 | break; |
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381 | case fg_spec_flags: |
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382 | flags = &spec_cflags; |
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383 | break; |
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384 | default: |
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385 | throw rld::error ("Invalid flag group", "CC get flags"); |
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386 | } |
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387 | return *flags; |
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388 | } |
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389 | |
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390 | void |
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391 | append_flags (flag_type type, rld::process::arg_container& args) |
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392 | { |
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393 | const std::string* flags = 0; |
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394 | switch (type) |
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395 | { |
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396 | case ft_cppflags: |
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397 | flags = &cppflags; |
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398 | break; |
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399 | case ft_cflags: |
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400 | flags = &cflags; |
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401 | break; |
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402 | case ft_cxxflags: |
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403 | flags = &cxxflags; |
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404 | break; |
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405 | case ft_ldflags: |
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406 | flags = &ldflags; |
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407 | break; |
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408 | default: |
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409 | throw rld::error ("Invalid flag type", "CC append flags"); |
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410 | } |
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411 | if (!flags->empty ()) |
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412 | rld::process::args_append (args, *flags); |
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413 | } |
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414 | |
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415 | void |
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416 | make_cc_command (rld::process::arg_container& args) |
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417 | { |
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418 | /* |
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419 | * Use the absolute path to CC if provided. |
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420 | */ |
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421 | if (!cc.empty ()) |
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422 | args.push_back (cc); |
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423 | else |
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424 | { |
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425 | std::string cmd = cc_name; |
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426 | if (!exec_prefix.empty ()) |
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427 | cmd = exec_prefix + "-rtems" + rld::rtems::version () + '-' + cmd; |
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428 | args.push_back (cmd); |
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429 | } |
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430 | } |
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431 | |
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432 | static bool |
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433 | match_and_trim (const char* prefix, std::string& line, std::string& result) |
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434 | { |
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435 | std::string::size_type pos = ::strlen (prefix); |
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436 | if (line.substr (0, pos) == prefix) |
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437 | { |
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438 | if (line[pos] == '=') |
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439 | ++pos; |
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440 | result = line.substr (pos, line.size () - pos - 1); |
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441 | return true; |
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442 | } |
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443 | return false; |
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444 | } |
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445 | |
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446 | static void |
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447 | search_dirs () |
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448 | { |
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449 | rld::process::arg_container args; |
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450 | |
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451 | make_cc_command (args); |
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452 | append_flags (ft_cppflags, args); |
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453 | append_flags (ft_cflags, args); |
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454 | args.push_back ("-print-search-dirs"); |
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455 | |
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456 | rld::process::tempfile out; |
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457 | rld::process::tempfile err; |
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458 | rld::process::status status; |
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459 | |
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460 | status = rld::process::execute (cc_name, args, out.name (), err.name ()); |
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461 | |
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462 | if ((status.type == rld::process::status::normal) && |
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463 | (status.code == 0)) |
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464 | { |
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465 | if (rld::verbose () >= RLD_VERBOSE_DETAILS) |
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466 | out.output (cc_name, std::cout, true); |
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467 | out.open (); |
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468 | while (true) |
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469 | { |
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470 | std::string line; |
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471 | out.read_line (line); |
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472 | if (line.size () == 0) |
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473 | break; |
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474 | if (match_and_trim ("install: ", line, install_path)) |
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475 | continue; |
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476 | if (match_and_trim ("programs: ", line, programs_path)) |
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477 | continue; |
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478 | if (match_and_trim ("libraries: ", line, libraries_path)) |
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479 | continue; |
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480 | } |
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481 | out.close (); |
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482 | if (rld::verbose () >= RLD_VERBOSE_DETAILS) |
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483 | { |
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484 | std::cout << "cc::install: " << install_path << std::endl |
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485 | << "cc::programs: " << programs_path << std::endl |
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486 | << "cc::libraries: " << libraries_path << std::endl; |
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487 | } |
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488 | } |
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489 | else |
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490 | { |
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491 | err.output (cc_name, std::cout); |
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492 | } |
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493 | } |
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494 | |
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495 | void |
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496 | get_library_path (std::string& name, std::string& path) |
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497 | { |
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498 | rld::process::arg_container args; |
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499 | |
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500 | make_cc_command (args); |
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501 | append_flags (ft_cppflags, args); |
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502 | append_flags (ft_cflags, args); |
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503 | args.push_back ("-print-file-name=" + name); |
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504 | |
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505 | rld::process::tempfile out; |
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506 | rld::process::tempfile err; |
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507 | rld::process::status status; |
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508 | |
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509 | status = rld::process::execute (cc_name, args, out.name (), err.name ()); |
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510 | |
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511 | if ((status.type == rld::process::status::normal) && |
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512 | (status.code == 0)) |
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513 | { |
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514 | if (rld::verbose () >= RLD_VERBOSE_DETAILS) |
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515 | out.output ("cc", std::cout, true); |
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516 | out.open (); |
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517 | out.read (path); |
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518 | out.close (); |
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519 | if (rld::verbose () >= RLD_VERBOSE_DETAILS) |
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520 | std::cout << "cc::libpath: " << name << " -> " << path << std::endl; |
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521 | } |
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522 | else |
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523 | { |
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524 | err.output ("cc", std::cout); |
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525 | } |
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526 | } |
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527 | |
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528 | void |
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529 | get_standard_libpaths (rld::path::paths& libpaths) |
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530 | { |
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531 | search_dirs (); |
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532 | rld::split (libpaths, libraries_path, RLD_PATHSTR_SEPARATOR); |
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533 | } |
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534 | |
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535 | void |
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536 | get_standard_libs (rld::path::paths& libs, |
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537 | rld::path::paths& libpaths, |
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538 | bool cplusplus) |
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539 | { |
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540 | strings libnames; |
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541 | |
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542 | rld::split (libnames, std_lib_c, RLD_PATHSTR_SEPARATOR); |
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543 | if (cplusplus) |
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544 | rld::path::path_split (std_lib_cplusplus, libnames); |
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545 | |
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546 | for (strings::iterator lni = libnames.begin (); |
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547 | lni != libnames.end (); |
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548 | ++lni) |
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549 | { |
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550 | if (rld::verbose () >= RLD_VERBOSE_INFO) |
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551 | std::cout << "cc::stdlib: " << *lni << std::endl; |
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552 | |
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553 | std::string path; |
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554 | |
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555 | rld::path::find_file (path, *lni, libpaths); |
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556 | if (path.empty ()) |
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557 | throw rld::error ("Library not found: " + *lni, "getting standard libs"); |
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558 | |
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559 | libs.push_back (path); |
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560 | } |
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561 | } |
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562 | } |
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563 | } |
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