Mercurial > hg > octave-lyh
annotate src/dynamic-ld.cc @ 9401:6c421f2355b5
load-path.cc (Faddpath): preserve order of prepended elements
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 26 Jun 2009 09:15:31 -0400 |
| parents | 610bf90fce2a |
| children | 80432f0ee895 |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
| 8920 | 4 2002, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
| 1 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 1 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 1 | 21 |
| 22 */ | |
| 23 | |
| 240 | 24 #ifdef HAVE_CONFIG_H |
| 1192 | 25 #include <config.h> |
| 1 | 26 #endif |
| 27 | |
|
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28 #include <iostream> |
| 4219 | 29 #include <list> |
| 30 | |
| 6323 | 31 #include "oct-env.h" |
| 3325 | 32 #include "oct-time.h" |
| 33 #include "file-stat.h" | |
| 707 | 34 |
| 2492 | 35 #include <defaults.h> |
| 3325 | 36 |
| 37 #include "defun.h" | |
| 1352 | 38 #include "dynamic-ld.h" |
| 7336 | 39 #include "ov-fcn.h" |
| 40 #include "ov-dld-fcn.h" | |
| 41 #include "ov-mex-fcn.h" | |
| 3325 | 42 #include "parse.h" |
| 43 #include "unwind-prot.h" | |
| 1352 | 44 #include "utils.h" |
| 707 | 45 #include "variables.h" |
| 1 | 46 |
| 5864 | 47 #define STRINGIFY(s) STRINGIFY1(s) |
| 48 #define STRINGIFY1(s) #s | |
| 49 | |
| 2894 | 50 class |
| 3325 | 51 octave_shlib_list |
| 1664 | 52 { |
| 2894 | 53 public: |
| 54 | |
| 7748 | 55 typedef std::list<octave_shlib>::iterator iterator; |
| 56 typedef std::list<octave_shlib>::const_iterator const_iterator; | |
| 57 | |
| 3325 | 58 static void append (const octave_shlib& shl); |
| 2894 | 59 |
| 6063 | 60 static void remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
| 3325 | 61 |
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62 static octave_shlib find_file (const std::string& file_name); |
| 2894 | 63 |
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64 static void display (void); |
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65 |
| 2894 | 66 private: |
| 67 | |
| 3325 | 68 octave_shlib_list (void) { } |
| 69 | |
| 70 ~octave_shlib_list (void) { } | |
| 71 | |
| 72 void do_append (const octave_shlib& shl); | |
| 73 | |
| 6063 | 74 void do_remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
| 3325 | 75 |
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76 octave_shlib do_find_file (const std::string& file_name) const; |
| 3325 | 77 |
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78 void do_display (void) const; |
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79 |
| 3325 | 80 static octave_shlib_list *instance; |
| 81 | |
| 82 static bool instance_ok (void); | |
| 83 | |
| 84 // List of libraries we have loaded. | |
| 4219 | 85 std::list<octave_shlib> lib_list; |
| 2894 | 86 |
| 87 // No copying! | |
| 88 | |
| 3325 | 89 octave_shlib_list (const octave_shlib_list&); |
| 2894 | 90 |
| 3325 | 91 octave_shlib_list& operator = (const octave_shlib_list&); |
| 2894 | 92 }; |
| 93 | |
| 3325 | 94 octave_shlib_list *octave_shlib_list::instance = 0; |
| 3321 | 95 |
| 3325 | 96 void |
| 97 octave_shlib_list::do_append (const octave_shlib& shl) | |
| 98 { | |
| 4219 | 99 lib_list.push_back (shl); |
| 1664 | 100 } |
| 101 | |
| 3325 | 102 void |
| 6063 | 103 octave_shlib_list::do_remove (octave_shlib& shl, |
| 104 octave_shlib::close_hook cl_hook) | |
| 1664 | 105 { |
| 7748 | 106 for (iterator p = lib_list.begin (); p != lib_list.end (); p++) |
| 3325 | 107 { |
| 4219 | 108 if (*p == shl) |
| 3325 | 109 { |
| 6063 | 110 shl.close (cl_hook); |
| 1664 | 111 |
| 4219 | 112 lib_list.erase (p); |
| 3033 | 113 |
| 3325 | 114 break; |
| 1664 | 115 } |
| 116 } | |
| 117 } | |
| 118 | |
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119 octave_shlib |
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120 octave_shlib_list::do_find_file (const std::string& file_name) const |
| 3325 | 121 { |
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122 octave_shlib retval; |
| 1664 | 123 |
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124 for (const_iterator p = lib_list.begin (); p != lib_list.end (); p++) |
| 3325 | 125 { |
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126 if (p->file_name () == file_name) |
| 3325 | 127 { |
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128 retval = *p; |
| 3325 | 129 break; |
| 130 } | |
| 131 } | |
| 132 | |
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133 return retval; |
| 3325 | 134 } |
| 2926 | 135 |
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136 void |
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137 octave_shlib_list::do_display (void) const |
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138 { |
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139 std::cerr << "current shared libraries:" << std::endl; |
| 7748 | 140 for (const_iterator p = lib_list.begin (); p != lib_list.end (); p++) |
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141 std::cerr << " " << p->file_name () << std::endl; |
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142 } |
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143 |
| 2926 | 144 bool |
| 3325 | 145 octave_shlib_list::instance_ok (void) |
| 2926 | 146 { |
| 147 bool retval = true; | |
| 148 | |
| 149 if (! instance) | |
| 3325 | 150 instance = new octave_shlib_list (); |
| 2926 | 151 |
| 152 if (! instance) | |
| 153 { | |
| 3325 | 154 ::error ("unable to create shared library list object!"); |
| 2926 | 155 |
| 156 retval = false; | |
| 157 } | |
| 158 | |
| 159 return retval; | |
| 160 } | |
| 161 | |
| 162 void | |
| 3325 | 163 octave_shlib_list::append (const octave_shlib& shl) |
| 164 { | |
| 165 if (instance_ok ()) | |
| 166 instance->do_append (shl); | |
| 167 } | |
| 168 | |
| 169 void | |
| 6063 | 170 octave_shlib_list::remove (octave_shlib& shl, |
| 171 octave_shlib::close_hook cl_hook) | |
| 2894 | 172 { |
| 3325 | 173 if (instance_ok ()) |
| 6063 | 174 instance->do_remove (shl, cl_hook); |
| 2894 | 175 } |
| 176 | |
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177 octave_shlib |
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178 octave_shlib_list::find_file (const std::string& file_name) |
| 3325 | 179 { |
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180 return (instance_ok ()) |
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181 ? instance->do_find_file (file_name) : octave_shlib (); |
| 3325 | 182 } |
| 183 | |
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184 void |
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185 octave_shlib_list::display (void) |
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186 { |
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187 if (instance_ok ()) |
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188 instance->do_display (); |
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189 } |
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190 |
| 5864 | 191 class |
| 192 octave_mex_file_list | |
| 193 { | |
| 194 public: | |
| 195 | |
| 7748 | 196 typedef std::list<octave_shlib>::iterator iterator; |
| 197 typedef std::list<octave_shlib>::const_iterator const_iterator; | |
| 198 | |
| 5864 | 199 static void append (const octave_shlib& shl); |
| 200 | |
| 6063 | 201 static void remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
| 5864 | 202 |
| 203 private: | |
| 204 | |
| 205 octave_mex_file_list (void) { } | |
| 206 | |
| 207 ~octave_mex_file_list (void) { } | |
| 208 | |
| 209 void do_append (const octave_shlib& shl); | |
| 210 | |
| 6063 | 211 void do_remove (octave_shlib& shl, octave_shlib::close_hook cl_hook = 0); |
| 5864 | 212 |
| 213 static octave_mex_file_list *instance; | |
| 214 | |
| 215 static bool instance_ok (void); | |
| 216 | |
| 217 // List of libraries we have loaded. | |
| 218 std::list<octave_shlib> file_list; | |
| 219 | |
| 220 // No copying! | |
| 221 | |
| 222 octave_mex_file_list (const octave_mex_file_list&); | |
| 223 | |
| 224 octave_mex_file_list& operator = (const octave_mex_file_list&); | |
| 225 }; | |
| 226 | |
| 227 octave_mex_file_list *octave_mex_file_list::instance = 0; | |
| 228 | |
| 229 void | |
| 230 octave_mex_file_list::do_append (const octave_shlib& shl) | |
| 231 { | |
| 232 file_list.push_back (shl); | |
| 233 } | |
| 234 | |
| 235 void | |
| 6063 | 236 octave_mex_file_list::do_remove (octave_shlib& shl, |
| 237 octave_shlib::close_hook cl_hook) | |
| 5864 | 238 { |
| 7748 | 239 for (iterator p = file_list.begin (); p != file_list.end (); p++) |
| 5864 | 240 { |
| 241 if (*p == shl) | |
| 242 { | |
| 6063 | 243 shl.close (cl_hook); |
| 5864 | 244 |
| 245 file_list.erase (p); | |
| 246 | |
| 247 break; | |
| 248 } | |
| 249 } | |
| 250 } | |
| 251 | |
| 252 bool | |
| 253 octave_mex_file_list::instance_ok (void) | |
| 254 { | |
| 255 bool retval = true; | |
| 256 | |
| 257 if (! instance) | |
| 258 instance = new octave_mex_file_list (); | |
| 259 | |
| 260 if (! instance) | |
| 261 { | |
| 262 ::error ("unable to create shared library list object!"); | |
| 263 | |
| 264 retval = false; | |
| 265 } | |
| 266 | |
| 267 return retval; | |
| 268 } | |
| 269 | |
| 270 void | |
| 271 octave_mex_file_list::append (const octave_shlib& shl) | |
| 272 { | |
| 273 if (instance_ok ()) | |
| 274 instance->do_append (shl); | |
| 275 } | |
| 276 | |
| 277 void | |
| 6063 | 278 octave_mex_file_list::remove (octave_shlib& shl, |
| 279 octave_shlib::close_hook cl_hook) | |
| 5864 | 280 { |
| 281 if (instance_ok ()) | |
| 6063 | 282 instance->do_remove (shl, cl_hook); |
| 5864 | 283 } |
| 284 | |
| 3325 | 285 octave_dynamic_loader *octave_dynamic_loader::instance = 0; |
| 286 | |
| 287 bool octave_dynamic_loader::doing_load = false; | |
| 288 | |
| 2969 | 289 bool |
| 3325 | 290 octave_dynamic_loader::instance_ok (void) |
| 707 | 291 { |
| 3325 | 292 bool retval = true; |
| 1664 | 293 |
| 3325 | 294 if (! instance) |
| 295 instance = new octave_dynamic_loader (); | |
| 707 | 296 |
| 3325 | 297 if (! instance) |
| 707 | 298 { |
| 3655 | 299 ::error ("unable to create dynamic loader object!"); |
| 707 | 300 |
| 3325 | 301 retval = false; |
| 707 | 302 } |
| 303 | |
| 2893 | 304 return retval; |
| 305 } | |
| 306 | |
| 3325 | 307 static |
| 4954 | 308 void do_clear_function (const std::string& fcn_name) |
| 3325 | 309 { |
| 5781 | 310 warning_with_id ("Octave:reload-forces-clear", " %s", fcn_name.c_str ()); |
| 3325 | 311 |
| 7336 | 312 symbol_table::clear_user_function (fcn_name); |
| 3325 | 313 } |
| 314 | |
| 6323 | 315 static void |
| 316 clear (octave_shlib& oct_file) | |
| 317 { | |
| 318 if (oct_file.number_of_functions_loaded () > 1) | |
| 319 warning_with_id ("Octave:reload-forces-clear", | |
| 320 "reloading %s clears the following functions:", | |
| 321 oct_file.file_name().c_str ()); | |
| 322 | |
| 323 octave_shlib_list::remove (oct_file, do_clear_function); | |
| 324 } | |
| 325 | |
| 7336 | 326 octave_function * |
| 5864 | 327 octave_dynamic_loader::do_load_oct (const std::string& fcn_name, |
| 6323 | 328 const std::string& file_name, |
| 329 bool relative) | |
| 2893 | 330 { |
| 7336 | 331 octave_function *retval = 0; |
| 3325 | 332 |
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333 unwind_protect::frame_id_t uwp_frame = unwind_protect::begin_frame (); |
| 3325 | 334 |
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335 unwind_protect::protect_var (octave_dynamic_loader::doing_load); |
| 3325 | 336 |
| 337 doing_load = true; | |
| 338 | |
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339 octave_shlib oct_file = octave_shlib_list::find_file (file_name); |
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340 |
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341 if (oct_file && oct_file.is_out_of_date ()) |
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342 clear (oct_file); |
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343 |
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344 if (! oct_file) |
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345 { |
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346 oct_file.open (file_name); |
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347 |
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348 if (! error_state && oct_file) |
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349 { |
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350 octave_shlib_list::append (oct_file); |
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351 |
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352 if (relative) |
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353 oct_file.mark_relative (); |
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354 } |
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355 } |
| 3325 | 356 |
| 357 if (! error_state) | |
| 358 { | |
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359 if (oct_file) |
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360 { |
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361 void *function = oct_file.search (fcn_name, name_mangler); |
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362 |
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363 if (! function) |
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364 { |
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365 // FIXME -- can we determine this C mangling scheme |
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366 // automatically at run time or configure time? |
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367 |
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368 function = oct_file.search (fcn_name, name_uscore_mangler); |
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369 } |
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370 |
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371 if (function) |
| 6323 | 372 { |
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373 octave_dld_fcn_getter f |
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374 = FCN_PTR_CAST (octave_dld_fcn_getter, function); |
| 7748 | 375 |
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376 retval = f (oct_file, relative); |
| 7748 | 377 |
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378 if (! retval) |
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379 ::error ("failed to install .oct file function `%s'", |
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380 fcn_name.c_str ()); |
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381 } |
| 3325 | 382 } |
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383 else |
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384 ::error ("%s is not a valid shared library", |
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385 file_name.c_str ()); |
| 3325 | 386 } |
| 3655 | 387 |
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388 unwind_protect::run_frame (uwp_frame); |
| 3325 | 389 |
| 390 return retval; | |
| 391 } | |
| 392 | |
| 7336 | 393 octave_function * |
| 5864 | 394 octave_dynamic_loader::do_load_mex (const std::string& fcn_name, |
| 6323 | 395 const std::string& file_name, |
| 396 bool relative) | |
| 5864 | 397 { |
| 7336 | 398 octave_function *retval = 0; |
| 5864 | 399 |
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400 unwind_protect::frame_id_t uwp_frame = unwind_protect::begin_frame (); |
| 5864 | 401 |
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402 unwind_protect::protect_var (octave_dynamic_loader::doing_load); |
| 5864 | 403 |
| 404 doing_load = true; | |
| 405 | |
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406 octave_shlib mex_file = octave_shlib_list::find_file (file_name); |
| 6323 | 407 |
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408 if (mex_file && mex_file.is_out_of_date ()) |
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409 clear (mex_file); |
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410 |
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411 if (! mex_file) |
| 6323 | 412 { |
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413 mex_file.open (file_name); |
| 6323 | 414 |
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415 if (! error_state && mex_file) |
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416 { |
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417 octave_shlib_list::append (mex_file); |
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418 |
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419 if (relative) |
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420 mex_file.mark_relative (); |
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421 } |
| 6323 | 422 } |
| 5864 | 423 |
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424 if (! error_state) |
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425 { |
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426 if (mex_file) |
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427 { |
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428 void *function = 0; |
| 5864 | 429 |
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430 bool have_fmex = false; |
| 5864 | 431 |
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432 octave_mex_file_list::append (mex_file); |
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433 |
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434 function = mex_file.search (fcn_name, mex_mangler); |
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435 |
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436 if (! function) |
| 5864 | 437 { |
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438 // FIXME -- can we determine this C mangling scheme |
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439 // automatically at run time or configure time? |
| 5864 | 440 |
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441 function = mex_file.search (fcn_name, mex_uscore_mangler); |
| 5864 | 442 |
| 443 if (! function) | |
| 444 { | |
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445 function = mex_file.search (fcn_name, mex_f77_mangler); |
| 6221 | 446 |
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447 if (function) |
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448 have_fmex = true; |
| 5864 | 449 } |
| 450 } | |
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451 |
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452 if (function) |
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453 retval = new octave_mex_function (function, have_fmex, |
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454 mex_file, fcn_name); |
| 5864 | 455 else |
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456 ::error ("failed to install .mex file function `%s'", |
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457 fcn_name.c_str ()); |
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458 } |
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459 else |
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460 ::error ("%s is not a valid shared library", |
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461 file_name.c_str ()); |
| 5864 | 462 } |
| 463 | |
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464 unwind_protect::run_frame (uwp_frame); |
| 5864 | 465 |
| 466 return retval; | |
| 467 } | |
| 468 | |
| 469 bool | |
| 7872 | 470 octave_dynamic_loader::do_remove_oct (const std::string& fcn_name, |
| 471 octave_shlib& shl) | |
| 3325 | 472 { |
| 473 bool retval = false; | |
| 474 | |
| 475 // We don't need to do anything if this is called because we are in | |
| 476 // the process of reloading a .oct file that has changed. | |
| 477 | |
| 478 if (! doing_load) | |
| 479 { | |
| 480 retval = shl.remove (fcn_name); | |
| 481 | |
| 482 if (shl.number_of_functions_loaded () == 0) | |
| 483 octave_shlib_list::remove (shl); | |
| 484 } | |
| 485 | |
| 486 return retval; | |
| 487 } | |
| 488 | |
| 7872 | 489 bool |
| 490 octave_dynamic_loader::do_remove_mex (const std::string& fcn_name, | |
| 491 octave_shlib& shl) | |
| 492 { | |
| 493 bool retval = false; | |
| 494 | |
| 495 // We don't need to do anything if this is called because we are in | |
| 496 // the process of reloading a .oct file that has changed. | |
| 497 | |
| 498 if (! doing_load) | |
| 499 { | |
| 500 retval = shl.remove (fcn_name); | |
| 501 | |
| 502 if (shl.number_of_functions_loaded () == 0) | |
| 503 octave_mex_file_list::remove (shl); | |
| 504 } | |
| 505 | |
| 506 return retval; | |
| 507 } | |
| 508 | |
| 7336 | 509 octave_function * |
| 5864 | 510 octave_dynamic_loader::load_oct (const std::string& fcn_name, |
| 7336 | 511 const std::string& file_name, |
| 512 bool relative) | |
| 3325 | 513 { |
| 6323 | 514 return (instance_ok ()) |
| 7336 | 515 ? instance->do_load_oct (fcn_name, file_name, relative) : 0; |
| 5864 | 516 } |
| 517 | |
| 7336 | 518 octave_function * |
| 5864 | 519 octave_dynamic_loader::load_mex (const std::string& fcn_name, |
| 7336 | 520 const std::string& file_name, |
| 521 bool relative) | |
| 5864 | 522 { |
| 6323 | 523 return (instance_ok ()) |
| 7336 | 524 ? instance->do_load_mex (fcn_name, file_name, relative) : 0; |
| 3325 | 525 } |
| 526 | |
| 527 bool | |
| 7872 | 528 octave_dynamic_loader::remove_oct (const std::string& fcn_name, |
| 529 octave_shlib& shl) | |
| 3325 | 530 { |
| 7872 | 531 return (instance_ok ()) ? instance->do_remove_oct (fcn_name, shl) : false; |
| 532 } | |
| 533 | |
| 534 bool | |
| 535 octave_dynamic_loader::remove_mex (const std::string& fcn_name, | |
| 536 octave_shlib& shl) | |
| 537 { | |
| 538 return (instance_ok ()) ? instance->do_remove_mex (fcn_name, shl) : false; | |
| 2893 | 539 } |
| 707 | 540 |
| 3536 | 541 std::string |
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542 octave_dynamic_loader::name_mangler (const std::string& name) |
| 2894 | 543 { |
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544 return "G" + name; |
| 2894 | 545 } |
| 707 | 546 |
| 7336 | 547 std::string |
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548 octave_dynamic_loader::name_uscore_mangler (const std::string& name) |
| 7336 | 549 { |
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550 return "_G" + name; |
| 7336 | 551 } |
| 552 | |
| 7872 | 553 std::string |
| 554 octave_dynamic_loader::mex_mangler (const std::string&) | |
| 555 { | |
| 556 return "mexFunction"; | |
| 557 } | |
| 558 | |
| 559 std::string | |
| 560 octave_dynamic_loader::mex_uscore_mangler (const std::string&) | |
| 561 { | |
| 562 return "_mexFunction"; | |
| 563 } | |
| 564 | |
| 565 std::string | |
| 566 octave_dynamic_loader::mex_f77_mangler (const std::string&) | |
| 567 { | |
| 568 return STRINGIFY (F77_FUNC (mexfunction, MEXFUNCTION)); | |
| 569 } | |
| 570 | |
| 1 | 571 /* |
| 572 ;;; Local Variables: *** | |
| 573 ;;; mode: C++ *** | |
| 574 ;;; End: *** | |
| 575 */ |