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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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240
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <list> |
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29 |
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3325
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30 #include "oct-time.h" |
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31 #include "file-stat.h" |
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32 |
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2492
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33 #include <defaults.h> |
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34 |
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35 #include "defun.h" |
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1352
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36 #include "dynamic-ld.h" |
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37 #include "parse.h" |
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38 #include "unwind-prot.h" |
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39 #include "utils.h" |
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40 #include "variables.h" |
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41 |
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5864
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42 #define STRINGIFY(s) STRINGIFY1(s) |
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43 #define STRINGIFY1(s) #s |
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44 |
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45 class |
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46 octave_shlib_list |
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47 { |
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48 public: |
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49 |
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50 static void append (const octave_shlib& shl); |
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51 |
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52 static void remove (octave_shlib& shl); |
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53 |
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54 static void *search (const std::string& fcn_name, octave_shlib& shl, |
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55 octave_shlib::name_mangler mangler = 0); |
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56 |
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57 private: |
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58 |
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59 octave_shlib_list (void) { } |
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60 |
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61 ~octave_shlib_list (void) { } |
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62 |
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63 void do_append (const octave_shlib& shl); |
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64 |
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65 void do_remove (octave_shlib& shl); |
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66 |
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67 void *do_search (const std::string& fcn_name, octave_shlib& shl, |
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68 octave_shlib::name_mangler mangler = 0); |
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69 |
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70 static octave_shlib_list *instance; |
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71 |
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72 static bool instance_ok (void); |
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73 |
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74 // List of libraries we have loaded. |
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75 std::list<octave_shlib> lib_list; |
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76 |
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77 // No copying! |
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78 |
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79 octave_shlib_list (const octave_shlib_list&); |
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80 |
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81 octave_shlib_list& operator = (const octave_shlib_list&); |
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82 }; |
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83 |
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84 octave_shlib_list *octave_shlib_list::instance = 0; |
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85 |
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86 void |
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87 octave_shlib_list::do_append (const octave_shlib& shl) |
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88 { |
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89 lib_list.push_back (shl); |
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90 } |
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91 |
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92 void |
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93 octave_shlib_list::do_remove (octave_shlib& shl) |
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94 { |
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95 |
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96 for (std::list<octave_shlib>::iterator p = lib_list.begin (); |
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97 p != lib_list.end (); |
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98 p++) |
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99 { |
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100 if (*p == shl) |
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101 { |
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102 shl.close (); |
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103 |
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104 lib_list.erase (p); |
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105 |
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106 break; |
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107 } |
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108 } |
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109 } |
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110 |
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111 void * |
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112 octave_shlib_list::do_search (const std::string& fcn_name, octave_shlib& shl, |
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113 octave_shlib::name_mangler mangler) |
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114 { |
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115 void *function = 0; |
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116 |
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117 shl = octave_shlib (); |
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118 |
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119 for (std::list<octave_shlib>::iterator p = lib_list.begin (); |
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120 p != lib_list.end (); |
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121 p++) |
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122 { |
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123 function = p->search (fcn_name, mangler); |
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124 |
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125 if (function) |
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126 { |
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127 shl = *p; |
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128 |
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129 break; |
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130 } |
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131 } |
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132 |
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133 return function; |
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134 } |
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135 |
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136 bool |
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137 octave_shlib_list::instance_ok (void) |
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138 { |
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139 bool retval = true; |
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140 |
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141 if (! instance) |
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142 instance = new octave_shlib_list (); |
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143 |
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144 if (! instance) |
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145 { |
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146 ::error ("unable to create shared library list object!"); |
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147 |
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148 retval = false; |
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149 } |
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150 |
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151 return retval; |
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152 } |
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153 |
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154 void |
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155 octave_shlib_list::append (const octave_shlib& shl) |
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156 { |
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157 if (instance_ok ()) |
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158 instance->do_append (shl); |
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159 } |
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160 |
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161 void |
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162 octave_shlib_list::remove (octave_shlib& shl) |
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163 { |
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164 if (instance_ok ()) |
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165 instance->do_remove (shl); |
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166 } |
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167 |
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168 void * |
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169 octave_shlib_list::search (const std::string& fcn_name, octave_shlib& shl, |
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170 octave_shlib::name_mangler mangler) |
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171 { |
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172 return (instance_ok ()) ? instance->do_search (fcn_name, shl, mangler) : 0; |
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173 } |
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174 |
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5864
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175 class |
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176 octave_mex_file_list |
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177 { |
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178 public: |
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179 |
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180 static void append (const octave_shlib& shl); |
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181 |
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182 static void remove (octave_shlib& shl); |
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183 |
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184 private: |
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185 |
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186 octave_mex_file_list (void) { } |
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187 |
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188 ~octave_mex_file_list (void) { } |
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189 |
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190 void do_append (const octave_shlib& shl); |
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191 |
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192 void do_remove (octave_shlib& shl); |
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193 |
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194 static octave_mex_file_list *instance; |
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195 |
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196 static bool instance_ok (void); |
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197 |
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198 // List of libraries we have loaded. |
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199 std::list<octave_shlib> file_list; |
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200 |
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201 // No copying! |
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202 |
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203 octave_mex_file_list (const octave_mex_file_list&); |
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204 |
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205 octave_mex_file_list& operator = (const octave_mex_file_list&); |
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206 }; |
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207 |
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208 octave_mex_file_list *octave_mex_file_list::instance = 0; |
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209 |
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210 void |
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211 octave_mex_file_list::do_append (const octave_shlib& shl) |
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212 { |
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213 file_list.push_back (shl); |
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214 } |
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215 |
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216 void |
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217 octave_mex_file_list::do_remove (octave_shlib& shl) |
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218 { |
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219 |
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220 for (std::list<octave_shlib>::iterator p = file_list.begin (); |
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221 p != file_list.end (); |
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222 p++) |
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223 { |
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224 if (*p == shl) |
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225 { |
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226 shl.close (); |
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227 |
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228 file_list.erase (p); |
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229 |
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230 break; |
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231 } |
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232 } |
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233 } |
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234 |
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235 bool |
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236 octave_mex_file_list::instance_ok (void) |
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237 { |
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238 bool retval = true; |
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239 |
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240 if (! instance) |
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241 instance = new octave_mex_file_list (); |
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242 |
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243 if (! instance) |
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244 { |
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245 ::error ("unable to create shared library list object!"); |
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246 |
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247 retval = false; |
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248 } |
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249 |
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250 return retval; |
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251 } |
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252 |
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253 void |
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254 octave_mex_file_list::append (const octave_shlib& shl) |
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255 { |
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256 if (instance_ok ()) |
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257 instance->do_append (shl); |
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258 } |
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259 |
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260 void |
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261 octave_mex_file_list::remove (octave_shlib& shl) |
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262 { |
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263 if (instance_ok ()) |
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264 instance->do_remove (shl); |
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265 } |
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266 |
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267 octave_dynamic_loader *octave_dynamic_loader::instance = 0; |
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268 |
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269 bool octave_dynamic_loader::doing_load = false; |
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270 |
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2969
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271 bool |
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272 octave_dynamic_loader::instance_ok (void) |
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273 { |
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274 bool retval = true; |
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275 |
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276 if (! instance) |
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277 instance = new octave_dynamic_loader (); |
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278 |
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279 if (! instance) |
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280 { |
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281 ::error ("unable to create dynamic loader object!"); |
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282 |
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283 retval = false; |
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284 } |
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285 |
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286 return retval; |
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287 } |
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288 |
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289 static |
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290 void do_clear_function (const std::string& fcn_name) |
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291 { |
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292 warning_with_id ("Octave:reload-forces-clear", " %s", fcn_name.c_str ()); |
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293 |
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294 curr_sym_tab->clear (fcn_name); |
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295 |
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296 if (curr_sym_tab != top_level_sym_tab) |
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297 top_level_sym_tab->clear (fcn_name); |
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298 |
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4009
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299 fbi_sym_tab->clear (fcn_name); |
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3325
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300 } |
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301 |
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302 bool |
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303 octave_dynamic_loader::do_load_oct (const std::string& fcn_name, |
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304 const std::string& file_name) |
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305 { |
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306 bool retval = false; |
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307 |
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308 octave_shlib oct_file; |
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309 |
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310 unwind_protect::begin_frame ("octave_dynamic_loader::do_load"); |
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311 |
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312 unwind_protect_bool (octave_dynamic_loader::doing_load); |
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313 |
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314 doing_load = true; |
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315 |
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316 void *function |
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317 = octave_shlib_list::search (fcn_name, oct_file, mangle_name); |
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318 |
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319 if (! error_state) |
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320 { |
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321 if (function && oct_file.is_out_of_date ()) |
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322 { |
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323 int n = oct_file.number_of_functions_loaded (); |
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324 |
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5781
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325 if (n > 0) |
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326 warning_with_id ("Octave:reload-forces-clear", |
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327 "reloading %s clears the following functions:", |
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328 oct_file.file_name().c_str ()); |
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329 |
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330 oct_file.close (do_clear_function); |
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331 |
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332 function = 0; |
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333 } |
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334 |
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335 if (! function) |
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336 { |
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337 std::string oct_file_name |
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338 = file_name.empty () ? oct_file_in_path (fcn_name) : file_name; |
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339 |
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340 if (! oct_file_name.empty ()) |
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341 { |
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5781
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342 oct_file.open (oct_file_name); |
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343 |
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344 if (! error_state) |
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345 { |
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346 if (oct_file) |
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347 { |
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348 octave_shlib_list::append (oct_file); |
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349 |
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350 function = oct_file.search (fcn_name, mangle_name); |
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351 } |
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352 else |
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353 ::error ("%s is not a valid shared library", |
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354 oct_file_name.c_str ()); |
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355 } |
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356 } |
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357 |
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3325
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358 } |
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359 } |
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360 |
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361 if (function) |
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362 { |
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363 octave_dld_fcn_installer f |
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364 = FCN_PTR_CAST (octave_dld_fcn_installer, function); |
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365 |
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366 retval = f (oct_file); |
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3656
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367 |
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368 if (! retval) |
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369 ::error ("failed to install .oct file function `%s'", |
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370 fcn_name.c_str ()); |
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3325
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371 } |
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3655
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372 |
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3325
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373 unwind_protect::run_frame ("octave_dynamic_loader::do_load"); |
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374 |
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375 return retval; |
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376 } |
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377 |
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378 bool |
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5864
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379 octave_dynamic_loader::do_load_mex (const std::string& fcn_name, |
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380 const std::string& file_name) |
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381 { |
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382 bool retval = false; |
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383 |
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384 octave_shlib mex_file; |
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385 |
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386 unwind_protect::begin_frame ("octave_dynamic_loader::do_load"); |
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387 |
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388 unwind_protect_bool (octave_dynamic_loader::doing_load); |
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389 |
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390 doing_load = true; |
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391 |
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392 std::string mex_file_name |
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393 = file_name.empty () ? mex_file_in_path (fcn_name) : file_name; |
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394 |
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395 void *function = 0; |
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396 |
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397 bool have_fmex = false; |
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398 |
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399 if (! mex_file_name.empty ()) |
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400 { |
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401 mex_file.open (mex_file_name); |
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402 |
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403 if (! error_state) |
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404 { |
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405 if (mex_file) |
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406 { |
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407 octave_mex_file_list::append (mex_file); |
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408 |
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409 function = mex_file.search ("mexFunction"); |
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410 |
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411 if (! function) |
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412 { |
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413 function = mex_file.search (STRINGIFY (F77_FUNC (mexfunction, MEXFUNCTION))); |
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414 if (function) |
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415 have_fmex = true; |
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416 } |
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417 } |
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418 else |
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419 ::error ("%s is not a valid shared library", |
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420 mex_file_name.c_str ()); |
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421 } |
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422 } |
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423 |
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424 if (function) |
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425 { |
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426 install_mex_function (function, have_fmex, fcn_name, mex_file); |
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427 |
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428 retval = true; |
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429 } |
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430 else |
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431 ::error ("failed to install .mex file function `%s'", fcn_name.c_str ()); |
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432 |
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433 unwind_protect::run_frame ("octave_dynamic_loader::do_load"); |
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434 |
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435 return retval; |
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436 } |
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437 |
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438 bool |
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3523
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439 octave_dynamic_loader::do_remove (const std::string& fcn_name, octave_shlib& shl) |
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3325
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440 { |
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441 bool retval = false; |
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442 |
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443 // We don't need to do anything if this is called because we are in |
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444 // the process of reloading a .oct file that has changed. |
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445 |
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446 if (! doing_load) |
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447 { |
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448 retval = shl.remove (fcn_name); |
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449 |
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450 if (shl.number_of_functions_loaded () == 0) |
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451 octave_shlib_list::remove (shl); |
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452 } |
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453 |
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454 return retval; |
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455 } |
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456 |
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457 bool |
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5864
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458 octave_dynamic_loader::load_oct (const std::string& fcn_name, |
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459 const std::string& file_name) |
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3325
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460 { |
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5864
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461 return (instance_ok ()) ? instance->do_load_oct (fcn_name, file_name) : false; |
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462 } |
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463 |
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464 bool |
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465 octave_dynamic_loader::load_mex (const std::string& fcn_name, |
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466 const std::string& file_name) |
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467 { |
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468 return (instance_ok ()) ? instance->do_load_mex (fcn_name, file_name) : false; |
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3325
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469 } |
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470 |
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471 bool |
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3523
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472 octave_dynamic_loader::remove (const std::string& fcn_name, octave_shlib& shl) |
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3325
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473 { |
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474 return (instance_ok ()) ? instance->do_remove (fcn_name, shl) : false; |
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2893
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475 } |
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707
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476 |
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3536
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477 std::string |
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3523
|
478 octave_dynamic_loader::mangle_name (const std::string& name) |
|
2894
|
479 { |
|
3222
|
480 #if defined (CXX_PREPENDS_UNDERSCORE) |
|
3523
|
481 std::string retval ("_FS"); |
|
3222
|
482 #else |
|
3523
|
483 std::string retval ("FS"); |
|
3222
|
484 #endif |
|
2894
|
485 retval.append (name); |
|
3842
|
486 retval.append ("_"); |
|
|
487 retval.append (STRINGIFY (CXX_ABI)); |
|
2894
|
488 return retval; |
|
|
489 } |
|
707
|
490 |
|
1
|
491 /* |
|
|
492 ;;; Local Variables: *** |
|
|
493 ;;; mode: C++ *** |
|
|
494 ;;; End: *** |
|
|
495 */ |
