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1 /* |
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2 |
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3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
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4 2002, 2004, 2005, 2006, 2007 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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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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30 #include "oct-env.h" |
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31 #include "oct-time.h" |
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32 #include "file-stat.h" |
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33 |
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34 #include <defaults.h> |
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35 |
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36 #include "defun.h" |
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37 #include "dynamic-ld.h" |
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38 #include "parse.h" |
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39 #include "unwind-prot.h" |
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40 #include "utils.h" |
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41 #include "variables.h" |
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42 |
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43 #define STRINGIFY(s) STRINGIFY1(s) |
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44 #define STRINGIFY1(s) #s |
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45 |
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46 class |
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47 octave_shlib_list |
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48 { |
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49 public: |
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50 |
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51 static void append (const octave_shlib& shl); |
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52 |
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53 static void remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
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54 |
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55 static void *search (const std::string& fcn_name, octave_shlib& shl, |
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56 octave_shlib::name_mangler mangler = 0); |
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57 |
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58 private: |
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59 |
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60 octave_shlib_list (void) { } |
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61 |
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62 ~octave_shlib_list (void) { } |
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63 |
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64 void do_append (const octave_shlib& shl); |
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65 |
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66 void do_remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
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67 |
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68 void *do_search (const std::string& fcn_name, octave_shlib& shl, |
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69 octave_shlib::name_mangler mangler = 0); |
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70 |
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71 static octave_shlib_list *instance; |
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72 |
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73 static bool instance_ok (void); |
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74 |
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75 // List of libraries we have loaded. |
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76 std::list<octave_shlib> lib_list; |
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77 |
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78 // No copying! |
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79 |
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80 octave_shlib_list (const octave_shlib_list&); |
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81 |
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82 octave_shlib_list& operator = (const octave_shlib_list&); |
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83 }; |
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84 |
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85 octave_shlib_list *octave_shlib_list::instance = 0; |
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86 |
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87 void |
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88 octave_shlib_list::do_append (const octave_shlib& shl) |
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89 { |
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90 lib_list.push_back (shl); |
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91 } |
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92 |
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93 void |
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94 octave_shlib_list::do_remove (octave_shlib& shl, |
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95 octave_shlib::close_hook cl_hook) |
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96 { |
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97 for (std::list<octave_shlib>::iterator p = lib_list.begin (); |
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98 p != lib_list.end (); |
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99 p++) |
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100 { |
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101 if (*p == shl) |
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102 { |
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103 shl.close (cl_hook); |
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104 |
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105 lib_list.erase (p); |
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106 |
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107 break; |
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108 } |
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109 } |
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110 } |
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111 |
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112 void * |
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113 octave_shlib_list::do_search (const std::string& fcn_name, octave_shlib& shl, |
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114 octave_shlib::name_mangler mangler) |
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115 { |
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116 void *function = 0; |
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117 |
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118 shl = octave_shlib (); |
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119 |
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120 for (std::list<octave_shlib>::iterator p = lib_list.begin (); |
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121 p != lib_list.end (); |
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122 p++) |
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123 { |
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124 function = p->search (fcn_name, mangler); |
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125 |
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126 if (function) |
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127 { |
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128 shl = *p; |
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129 |
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130 break; |
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131 } |
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132 } |
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133 |
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134 return function; |
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135 } |
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136 |
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137 bool |
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138 octave_shlib_list::instance_ok (void) |
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139 { |
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140 bool retval = true; |
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141 |
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142 if (! instance) |
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143 instance = new octave_shlib_list (); |
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144 |
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145 if (! instance) |
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146 { |
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147 ::error ("unable to create shared library list object!"); |
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148 |
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149 retval = false; |
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150 } |
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151 |
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152 return retval; |
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153 } |
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154 |
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155 void |
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156 octave_shlib_list::append (const octave_shlib& shl) |
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157 { |
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158 if (instance_ok ()) |
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159 instance->do_append (shl); |
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160 } |
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161 |
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162 void |
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163 octave_shlib_list::remove (octave_shlib& shl, |
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164 octave_shlib::close_hook cl_hook) |
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165 { |
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166 if (instance_ok ()) |
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167 instance->do_remove (shl, cl_hook); |
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168 } |
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169 |
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170 void * |
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171 octave_shlib_list::search (const std::string& fcn_name, octave_shlib& shl, |
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172 octave_shlib::name_mangler mangler) |
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173 { |
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174 return (instance_ok ()) ? instance->do_search (fcn_name, shl, mangler) : 0; |
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175 } |
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176 |
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177 class |
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178 octave_mex_file_list |
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179 { |
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180 public: |
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181 |
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182 static void append (const octave_shlib& shl); |
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183 |
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184 static void remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
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185 |
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186 private: |
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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 ~octave_mex_file_list (void) { } |
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191 |
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192 void do_append (const octave_shlib& shl); |
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193 |
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194 void do_remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
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195 |
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196 static octave_mex_file_list *instance; |
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197 |
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198 static bool instance_ok (void); |
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199 |
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200 // List of libraries we have loaded. |
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201 std::list<octave_shlib> file_list; |
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202 |
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203 // No copying! |
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204 |
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205 octave_mex_file_list (const octave_mex_file_list&); |
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206 |
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207 octave_mex_file_list& operator = (const octave_mex_file_list&); |
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208 }; |
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209 |
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210 octave_mex_file_list *octave_mex_file_list::instance = 0; |
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211 |
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212 void |
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213 octave_mex_file_list::do_append (const octave_shlib& shl) |
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214 { |
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215 file_list.push_back (shl); |
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216 } |
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217 |
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218 void |
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219 octave_mex_file_list::do_remove (octave_shlib& shl, |
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220 octave_shlib::close_hook cl_hook) |
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221 { |
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222 |
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223 for (std::list<octave_shlib>::iterator p = file_list.begin (); |
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224 p != file_list.end (); |
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225 p++) |
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226 { |
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227 if (*p == shl) |
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228 { |
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229 shl.close (cl_hook); |
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230 |
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231 file_list.erase (p); |
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232 |
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233 break; |
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234 } |
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235 } |
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236 } |
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237 |
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238 bool |
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239 octave_mex_file_list::instance_ok (void) |
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240 { |
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241 bool retval = true; |
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242 |
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243 if (! instance) |
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244 instance = new octave_mex_file_list (); |
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245 |
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246 if (! instance) |
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247 { |
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248 ::error ("unable to create shared library list object!"); |
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249 |
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250 retval = false; |
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251 } |
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252 |
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253 return retval; |
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254 } |
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255 |
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256 void |
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257 octave_mex_file_list::append (const octave_shlib& shl) |
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258 { |
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259 if (instance_ok ()) |
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260 instance->do_append (shl); |
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261 } |
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262 |
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263 void |
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264 octave_mex_file_list::remove (octave_shlib& shl, |
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265 octave_shlib::close_hook cl_hook) |
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266 { |
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267 if (instance_ok ()) |
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268 instance->do_remove (shl, cl_hook); |
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269 } |
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270 |
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271 octave_dynamic_loader *octave_dynamic_loader::instance = 0; |
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272 |
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273 bool octave_dynamic_loader::doing_load = false; |
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274 |
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275 bool |
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276 octave_dynamic_loader::instance_ok (void) |
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277 { |
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278 bool retval = true; |
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279 |
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280 if (! instance) |
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281 instance = new octave_dynamic_loader (); |
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282 |
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283 if (! instance) |
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284 { |
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285 ::error ("unable to create dynamic loader object!"); |
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286 |
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287 retval = false; |
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288 } |
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289 |
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290 return retval; |
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291 } |
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292 |
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293 static |
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294 void do_clear_function (const std::string& fcn_name) |
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295 { |
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296 warning_with_id ("Octave:reload-forces-clear", " %s", fcn_name.c_str ()); |
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297 |
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298 curr_sym_tab->clear (fcn_name); |
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299 |
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300 if (curr_sym_tab != top_level_sym_tab) |
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301 top_level_sym_tab->clear (fcn_name); |
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302 |
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303 fbi_sym_tab->clear (fcn_name); |
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304 } |
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305 |
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306 static void |
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307 clear (octave_shlib& oct_file) |
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308 { |
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309 if (oct_file.number_of_functions_loaded () > 1) |
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310 warning_with_id ("Octave:reload-forces-clear", |
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311 "reloading %s clears the following functions:", |
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312 oct_file.file_name().c_str ()); |
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313 |
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314 octave_shlib_list::remove (oct_file, do_clear_function); |
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315 } |
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316 |
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317 bool |
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318 octave_dynamic_loader::do_load_oct (const std::string& fcn_name, |
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319 const std::string& file_name, |
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320 bool relative) |
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321 { |
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322 bool retval = false; |
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323 |
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324 octave_shlib oct_file; |
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325 |
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326 unwind_protect::begin_frame ("octave_dynamic_loader::do_load"); |
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327 |
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328 unwind_protect_bool (octave_dynamic_loader::doing_load); |
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329 |
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330 doing_load = true; |
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331 |
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332 void *function |
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333 = octave_shlib_list::search (fcn_name, oct_file, mangle_name); |
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334 |
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335 if (! error_state) |
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336 { |
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337 if (function |
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338 && (! same_file (file_name, oct_file.file_name ()) |
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339 || oct_file.is_out_of_date ())) |
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340 { |
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341 clear (oct_file); |
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342 function = 0; |
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343 } |
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344 |
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345 if (! function) |
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346 { |
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347 std::string oct_file_name = file_name; |
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348 |
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349 if (oct_file_name.empty ()) |
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350 { |
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351 oct_file_name = oct_file_in_path (fcn_name); |
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352 |
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353 if (! oct_file_name.empty ()) |
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354 relative = ! octave_env::absolute_pathname (oct_file_name); |
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355 } |
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356 |
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357 if (oct_file_name.empty ()) |
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358 { |
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359 if (oct_file.is_relative ()) |
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360 { |
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361 // Can't see this function from current |
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362 // directory, so we should clear it. |
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363 clear (oct_file); |
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364 function = 0; |
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365 } |
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366 } |
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367 else |
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368 { |
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369 oct_file.open (oct_file_name); |
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370 |
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371 if (! error_state) |
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372 { |
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373 if (oct_file) |
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374 { |
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375 if (relative) |
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376 oct_file.mark_relative (); |
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377 |
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378 octave_shlib_list::append (oct_file); |
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379 |
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380 function = oct_file.search (fcn_name, mangle_name); |
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381 } |
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382 else |
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383 ::error ("%s is not a valid shared library", |
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384 oct_file_name.c_str ()); |
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385 } |
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386 } |
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387 } |
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388 } |
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389 |
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390 if (function) |
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391 { |
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392 octave_dld_fcn_installer f |
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393 = FCN_PTR_CAST (octave_dld_fcn_installer, function); |
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394 |
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395 retval = f (oct_file, relative); |
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396 |
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397 if (! retval) |
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398 ::error ("failed to install .oct file function `%s'", |
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399 fcn_name.c_str ()); |
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400 } |
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401 |
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402 unwind_protect::run_frame ("octave_dynamic_loader::do_load"); |
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403 |
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404 return retval; |
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405 } |
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406 |
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407 bool |
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408 octave_dynamic_loader::do_load_mex (const std::string& fcn_name, |
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409 const std::string& file_name, |
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410 bool relative) |
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411 { |
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412 bool retval = false; |
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413 |
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414 octave_shlib mex_file; |
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415 |
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416 unwind_protect::begin_frame ("octave_dynamic_loader::do_load"); |
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417 |
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418 unwind_protect_bool (octave_dynamic_loader::doing_load); |
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419 |
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420 doing_load = true; |
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421 |
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6323
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422 std::string mex_file_name = file_name; |
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423 |
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424 if (mex_file_name.empty ()) |
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425 { |
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426 mex_file_name = mex_file_in_path (fcn_name); |
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427 |
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428 if (! mex_file_name.empty ()) |
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429 relative = ! octave_env::absolute_pathname (mex_file_name); |
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430 } |
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431 |
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432 void *function = 0; |
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433 |
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434 bool have_fmex = false; |
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435 |
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436 if (! mex_file_name.empty ()) |
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437 { |
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438 mex_file.open (mex_file_name); |
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439 |
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440 if (! error_state) |
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441 { |
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442 if (mex_file) |
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443 { |
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444 octave_mex_file_list::append (mex_file); |
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445 |
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446 function = mex_file.search ("mexFunction"); |
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447 |
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448 if (! function) |
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449 { |
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6221
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450 // FIXME -- can we determine this C mangling scheme |
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451 // automatically at run time or configure time? |
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452 |
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453 function = mex_file.search ("_mexFunction"); |
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454 |
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455 if (! function) |
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456 { |
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457 function = mex_file.search (STRINGIFY (F77_FUNC (mexfunction, MEXFUNCTION))); |
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458 if (function) |
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459 have_fmex = true; |
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460 } |
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5864
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461 } |
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462 } |
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463 else |
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464 ::error ("%s is not a valid shared library", |
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465 mex_file_name.c_str ()); |
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466 } |
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467 } |
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468 |
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469 if (function) |
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470 { |
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6323
|
471 install_mex_function (function, have_fmex, fcn_name, mex_file, relative); |
|
5864
|
472 |
|
|
473 retval = true; |
|
|
474 } |
|
|
475 else |
|
|
476 ::error ("failed to install .mex file function `%s'", fcn_name.c_str ()); |
|
|
477 |
|
|
478 unwind_protect::run_frame ("octave_dynamic_loader::do_load"); |
|
|
479 |
|
|
480 return retval; |
|
|
481 } |
|
|
482 |
|
|
483 bool |
|
3523
|
484 octave_dynamic_loader::do_remove (const std::string& fcn_name, octave_shlib& shl) |
|
3325
|
485 { |
|
|
486 bool retval = false; |
|
|
487 |
|
|
488 // We don't need to do anything if this is called because we are in |
|
|
489 // the process of reloading a .oct file that has changed. |
|
|
490 |
|
|
491 if (! doing_load) |
|
|
492 { |
|
|
493 retval = shl.remove (fcn_name); |
|
|
494 |
|
|
495 if (shl.number_of_functions_loaded () == 0) |
|
|
496 octave_shlib_list::remove (shl); |
|
|
497 } |
|
|
498 |
|
|
499 return retval; |
|
|
500 } |
|
|
501 |
|
|
502 bool |
|
5864
|
503 octave_dynamic_loader::load_oct (const std::string& fcn_name, |
|
6323
|
504 const std::string& file_name, |
|
|
505 bool relative) |
|
3325
|
506 { |
|
6323
|
507 return (instance_ok ()) |
|
|
508 ? instance->do_load_oct (fcn_name, file_name, relative) : false; |
|
5864
|
509 } |
|
|
510 |
|
|
511 bool |
|
|
512 octave_dynamic_loader::load_mex (const std::string& fcn_name, |
|
6323
|
513 const std::string& file_name, |
|
|
514 bool relative) |
|
5864
|
515 { |
|
6323
|
516 return (instance_ok ()) |
|
|
517 ? instance->do_load_mex (fcn_name, file_name, relative) : false; |
|
3325
|
518 } |
|
|
519 |
|
|
520 bool |
|
3523
|
521 octave_dynamic_loader::remove (const std::string& fcn_name, octave_shlib& shl) |
|
3325
|
522 { |
|
|
523 return (instance_ok ()) ? instance->do_remove (fcn_name, shl) : false; |
|
2893
|
524 } |
|
707
|
525 |
|
3536
|
526 std::string |
|
3523
|
527 octave_dynamic_loader::mangle_name (const std::string& name) |
|
2894
|
528 { |
|
3222
|
529 #if defined (CXX_PREPENDS_UNDERSCORE) |
|
3523
|
530 std::string retval ("_FS"); |
|
3222
|
531 #else |
|
3523
|
532 std::string retval ("FS"); |
|
3222
|
533 #endif |
|
2894
|
534 retval.append (name); |
|
3842
|
535 retval.append ("_"); |
|
|
536 retval.append (STRINGIFY (CXX_ABI)); |
|
2894
|
537 return retval; |
|
|
538 } |
|
707
|
539 |
|
1
|
540 /* |
|
|
541 ;;; Local Variables: *** |
|
|
542 ;;; mode: C++ *** |
|
|
543 ;;; End: *** |
|
|
544 */ |
