gdb/python/py-symbol.c

   1 /* Python interface to symbols.
   2
   3    Copyright (C) 2008-2016 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "block.h"
  22 #include "frame.h"
  23 #include "symtab.h"
  24 #include "python-internal.h"
  25 #include "objfiles.h"
  26
  27 typedef struct sympy_symbol_object {
  28   PyObject_HEAD
  29   /* The GDB symbol structure this object is wrapping.  */
  30   struct symbol *symbol;
  31   /* A symbol object is associated with an objfile, so keep track with
  32      doubly-linked list, rooted in the objfile.  This lets us
  33      invalidate the underlying struct symbol when the objfile is
  34      deleted.  */
  35   struct sympy_symbol_object *prev;
  36   struct sympy_symbol_object *next;
  37 } symbol_object;
  38
  39 /* Require a valid symbol.  All access to symbol_object->symbol should be
  40    gated by this call.  */
  41 #define SYMPY_REQUIRE_VALID(symbol_obj, symbol)         \
  42   do {                                                  \
  43     symbol = symbol_object_to_symbol (symbol_obj);      \
  44     if (symbol == NULL)                                 \
  45       {                                                 \
  46         PyErr_SetString (PyExc_RuntimeError,            \
  47                          _("Symbol is invalid."));      \
  48         return NULL;                                    \
  49       }                                                 \
  50   } while (0)
  51
  52 static const struct objfile_data *sympy_objfile_data_key;
  53
  54 static PyObject *
  55 sympy_str (PyObject *self)
  56 {
  57   PyObject *result;
  58   struct symbol *symbol = NULL;
  59
  60   SYMPY_REQUIRE_VALID (self, symbol);
  61
  62   result = PyString_FromString (SYMBOL_PRINT_NAME (symbol));
  63
  64   return result;
  65 }
  66
  67 static PyObject *
  68 sympy_get_type (PyObject *self, void *closure)
  69 {
  70   struct symbol *symbol = NULL;
  71
  72   SYMPY_REQUIRE_VALID (self, symbol);
  73
  74   if (SYMBOL_TYPE (symbol) == NULL)
  75     {
  76       Py_INCREF (Py_None);
  77       return Py_None;
  78     }
  79
  80   return type_to_type_object (SYMBOL_TYPE (symbol));
  81 }
  82
  83 static PyObject *
  84 sympy_get_symtab (PyObject *self, void *closure)
  85 {
  86   struct symbol *symbol = NULL;
  87
  88   SYMPY_REQUIRE_VALID (self, symbol);
  89
  90   if (!SYMBOL_OBJFILE_OWNED (symbol))
  91     Py_RETURN_NONE;
  92
  93   return symtab_to_symtab_object (symbol_symtab (symbol));
  94 }
  95
  96 static PyObject *
  97 sympy_get_name (PyObject *self, void *closure)
  98 {
  99   struct symbol *symbol = NULL;
 100
 101   SYMPY_REQUIRE_VALID (self, symbol);
 102
 103   return PyString_FromString (SYMBOL_NATURAL_NAME (symbol));
 104 }
 105
 106 static PyObject *
 107 sympy_get_linkage_name (PyObject *self, void *closure)
 108 {
 109   struct symbol *symbol = NULL;
 110
 111   SYMPY_REQUIRE_VALID (self, symbol);
 112
 113   return PyString_FromString (SYMBOL_LINKAGE_NAME (symbol));
 114 }
 115
 116 static PyObject *
 117 sympy_get_print_name (PyObject *self, void *closure)
 118 {
 119   struct symbol *symbol = NULL;
 120
 121   SYMPY_REQUIRE_VALID (self, symbol);
 122
 123   return sympy_str (self);
 124 }
 125
 126 static PyObject *
 127 sympy_get_addr_class (PyObject *self, void *closure)
 128 {
 129   struct symbol *symbol = NULL;
 130
 131   SYMPY_REQUIRE_VALID (self, symbol);
 132
 133   return PyInt_FromLong (SYMBOL_CLASS (symbol));
 134 }
 135
 136 static PyObject *
 137 sympy_is_argument (PyObject *self, void *closure)
 138 {
 139   struct symbol *symbol = NULL;
 140
 141   SYMPY_REQUIRE_VALID (self, symbol);
 142
 143   return PyBool_FromLong (SYMBOL_IS_ARGUMENT (symbol));
 144 }
 145
 146 static PyObject *
 147 sympy_is_constant (PyObject *self, void *closure)
 148 {
 149   struct symbol *symbol = NULL;
 150   enum address_class theclass;
 151
 152   SYMPY_REQUIRE_VALID (self, symbol);
 153
 154   theclass = SYMBOL_CLASS (symbol);
 155
 156   return PyBool_FromLong (theclass == LOC_CONST || theclass == LOC_CONST_BYTES);
 157 }
 158
 159 static PyObject *
 160 sympy_is_function (PyObject *self, void *closure)
 161 {
 162   struct symbol *symbol = NULL;
 163   enum address_class theclass;
 164
 165   SYMPY_REQUIRE_VALID (self, symbol);
 166
 167   theclass = SYMBOL_CLASS (symbol);
 168
 169   return PyBool_FromLong (theclass == LOC_BLOCK);
 170 }
 171
 172 static PyObject *
 173 sympy_is_variable (PyObject *self, void *closure)
 174 {
 175   struct symbol *symbol = NULL;
 176   enum address_class theclass;
 177
 178   SYMPY_REQUIRE_VALID (self, symbol);
 179
 180   theclass = SYMBOL_CLASS (symbol);
 181
 182   return PyBool_FromLong (!SYMBOL_IS_ARGUMENT (symbol)
 183                           && (theclass == LOC_LOCAL || theclass == LOC_REGISTER
 184                               || theclass == LOC_STATIC || theclass == LOC_COMPUTED
 185                               || theclass == LOC_OPTIMIZED_OUT));
 186 }
 187
 188 /* Implementation of gdb.Symbol.needs_frame -> Boolean.
 189    Returns true iff the symbol needs a frame for evaluation.  */
 190
 191 static PyObject *
 192 sympy_needs_frame (PyObject *self, void *closure)
 193 {
 194   struct symbol *symbol = NULL;
 195   int result = 0;
 196
 197   SYMPY_REQUIRE_VALID (self, symbol);
 198
 199   TRY
 200     {
 201       result = symbol_read_needs_frame (symbol);
 202     }
 203   CATCH (except, RETURN_MASK_ALL)
 204     {
 205       GDB_PY_HANDLE_EXCEPTION (except);
 206     }
 207   END_CATCH
 208
 209   if (result)
 210     Py_RETURN_TRUE;
 211   Py_RETURN_FALSE;
 212 }
 213
 214 /* Implementation of gdb.Symbol.line -> int.
 215    Returns the line number at which the symbol was defined.  */
 216
 217 static PyObject *
 218 sympy_line (PyObject *self, void *closure)
 219 {
 220   struct symbol *symbol = NULL;
 221
 222   SYMPY_REQUIRE_VALID (self, symbol);
 223
 224   return PyInt_FromLong (SYMBOL_LINE (symbol));
 225 }
 226
 227 /* Implementation of gdb.Symbol.is_valid (self) -> Boolean.
 228    Returns True if this Symbol still exists in GDB.  */
 229
 230 static PyObject *
 231 sympy_is_valid (PyObject *self, PyObject *args)
 232 {
 233   struct symbol *symbol = NULL;
 234
 235   symbol = symbol_object_to_symbol (self);
 236   if (symbol == NULL)
 237     Py_RETURN_FALSE;
 238
 239   Py_RETURN_TRUE;
 240 }
 241
 242 /* Implementation of gdb.Symbol.value (self[, frame]) -> gdb.Value.  Returns
 243    the value of the symbol, or an error in various circumstances.  */
 244
 245 static PyObject *
 246 sympy_value (PyObject *self, PyObject *args)
 247 {
 248   struct symbol *symbol = NULL;
 249   struct frame_info *frame_info = NULL;
 250   PyObject *frame_obj = NULL;
 251   struct value *value = NULL;
 252
 253   if (!PyArg_ParseTuple (args, "|O", &frame_obj))
 254     return NULL;
 255
 256   if (frame_obj != NULL && !PyObject_TypeCheck (frame_obj, &frame_object_type))
 257     {
 258       PyErr_SetString (PyExc_TypeError, "argument is not a frame");
 259       return NULL;
 260     }
 261
 262   SYMPY_REQUIRE_VALID (self, symbol);
 263   if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
 264     {
 265       PyErr_SetString (PyExc_TypeError, "cannot get the value of a typedef");
 266       return NULL;
 267     }
 268
 269   TRY
 270     {
 271       if (frame_obj != NULL)
 272         {
 273           frame_info = frame_object_to_frame_info (frame_obj);
 274           if (frame_info == NULL)
 275             error (_("invalid frame"));
 276         }
 277
 278       if (symbol_read_needs_frame (symbol) && frame_info == NULL)
 279         error (_("symbol requires a frame to compute its value"));
 280
 281       /* TODO: currently, we have no way to recover the block in which SYMBOL
 282          was found, so we have no block to pass to read_var_value.  This will
 283          yield an incorrect value when symbol is not local to FRAME_INFO (this
 284          can happen with nested functions).  */
 285       value = read_var_value (symbol, NULL, frame_info);
 286     }
 287   CATCH (except, RETURN_MASK_ALL)
 288     {
 289       GDB_PY_HANDLE_EXCEPTION (except);
 290     }
 291   END_CATCH
 292
 293   return value_to_value_object (value);
 294 }
 295
 296 /* Given a symbol, and a symbol_object that has previously been
 297    allocated and initialized, populate the symbol_object with the
 298    struct symbol data.  Also, register the symbol_object life-cycle
 299    with the life-cycle of the object file associated with this
 300    symbol, if needed.  */
 301 static void
 302 set_symbol (symbol_object *obj, struct symbol *symbol)
 303 {
 304   obj->symbol = symbol;
 305   obj->prev = NULL;
 306   if (SYMBOL_OBJFILE_OWNED (symbol)
 307       && symbol_symtab (symbol) != NULL)
 308     {
 309       struct objfile *objfile = symbol_objfile (symbol);
 310
 311       obj->next = ((struct sympy_symbol_object *)
 312                    objfile_data (objfile, sympy_objfile_data_key));
 313       if (obj->next)
 314         obj->next->prev = obj;
 315       set_objfile_data (objfile, sympy_objfile_data_key, obj);
 316     }
 317   else
 318     obj->next = NULL;
 319 }
 320
 321 /* Create a new symbol object (gdb.Symbol) that encapsulates the struct
 322    symbol object from GDB.  */
 323 PyObject *
 324 symbol_to_symbol_object (struct symbol *sym)
 325 {
 326   symbol_object *sym_obj;
 327
 328   sym_obj = PyObject_New (symbol_object, &symbol_object_type);
 329   if (sym_obj)
 330     set_symbol (sym_obj, sym);
 331
 332   return (PyObject *) sym_obj;
 333 }
 334
 335 /* Return the symbol that is wrapped by this symbol object.  */
 336 struct symbol *
 337 symbol_object_to_symbol (PyObject *obj)
 338 {
 339   if (! PyObject_TypeCheck (obj, &symbol_object_type))
 340     return NULL;
 341   return ((symbol_object *) obj)->symbol;
 342 }
 343
 344 static void
 345 sympy_dealloc (PyObject *obj)
 346 {
 347   symbol_object *sym_obj = (symbol_object *) obj;
 348
 349   if (sym_obj->prev)
 350     sym_obj->prev->next = sym_obj->next;
 351   else if (sym_obj->symbol != NULL
 352            && SYMBOL_OBJFILE_OWNED (sym_obj->symbol)
 353            && symbol_symtab (sym_obj->symbol) != NULL)
 354     {
 355       set_objfile_data (symbol_objfile (sym_obj->symbol),
 356                         sympy_objfile_data_key, sym_obj->next);
 357     }
 358   if (sym_obj->next)
 359     sym_obj->next->prev = sym_obj->prev;
 360   sym_obj->symbol = NULL;
 361 }
 362
 363 /* Implementation of
 364    gdb.lookup_symbol (name [, block] [, domain]) -> (symbol, is_field_of_this)
 365    A tuple with 2 elements is always returned.  The first is the symbol
 366    object or None, the second is a boolean with the value of
 367    is_a_field_of_this (see comment in lookup_symbol_in_language).  */
 368
 369 PyObject *
 370 gdbpy_lookup_symbol (PyObject *self, PyObject *args, PyObject *kw)
 371 {
 372   int domain = VAR_DOMAIN;
 373   struct field_of_this_result is_a_field_of_this;
 374   const char *name;
 375   static char *keywords[] = { "name", "block", "domain", NULL };
 376   struct symbol *symbol = NULL;
 377   PyObject *block_obj = NULL, *ret_tuple, *sym_obj, *bool_obj;
 378   const struct block *block = NULL;
 379
 380   if (! PyArg_ParseTupleAndKeywords (args, kw, "s|O!i", keywords, &name,
 381                                      &block_object_type, &block_obj, &domain))
 382     return NULL;
 383
 384   if (block_obj)
 385     block = block_object_to_block (block_obj);
 386   else
 387     {
 388       struct frame_info *selected_frame;
 389
 390       TRY
 391         {
 392           selected_frame = get_selected_frame (_("No frame selected."));
 393           block = get_frame_block (selected_frame, NULL);
 394         }
 395       CATCH (except, RETURN_MASK_ALL)
 396         {
 397           GDB_PY_HANDLE_EXCEPTION (except);
 398         }
 399       END_CATCH
 400     }
 401
 402   TRY
 403     {
 404       symbol = lookup_symbol (name, block, (domain_enum) domain,
 405                               &is_a_field_of_this).symbol;
 406     }
 407   CATCH (except, RETURN_MASK_ALL)
 408     {
 409       GDB_PY_HANDLE_EXCEPTION (except);
 410     }
 411   END_CATCH
 412
 413   ret_tuple = PyTuple_New (2);
 414   if (!ret_tuple)
 415     return NULL;
 416
 417   if (symbol)
 418     {
 419       sym_obj = symbol_to_symbol_object (symbol);
 420       if (!sym_obj)
 421         {
 422           Py_DECREF (ret_tuple);
 423           return NULL;
 424         }
 425     }
 426   else
 427     {
 428       sym_obj = Py_None;
 429       Py_INCREF (Py_None);
 430     }
 431   PyTuple_SET_ITEM (ret_tuple, 0, sym_obj);
 432
 433   bool_obj = (is_a_field_of_this.type != NULL) ? Py_True : Py_False;
 434   Py_INCREF (bool_obj);
 435   PyTuple_SET_ITEM (ret_tuple, 1, bool_obj);
 436
 437   return ret_tuple;
 438 }
 439
 440 /* Implementation of
 441    gdb.lookup_global_symbol (name [, domain]) -> symbol or None.  */
 442
 443 PyObject *
 444 gdbpy_lookup_global_symbol (PyObject *self, PyObject *args, PyObject *kw)
 445 {
 446   int domain = VAR_DOMAIN;
 447   const char *name;
 448   static char *keywords[] = { "name", "domain", NULL };
 449   struct symbol *symbol = NULL;
 450   PyObject *sym_obj;
 451
 452   if (! PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &name,
 453                                      &domain))
 454     return NULL;
 455
 456   TRY
 457     {
 458       symbol = lookup_global_symbol (name, NULL, (domain_enum) domain).symbol;
 459     }
 460   CATCH (except, RETURN_MASK_ALL)
 461     {
 462       GDB_PY_HANDLE_EXCEPTION (except);
 463     }
 464   END_CATCH
 465
 466   if (symbol)
 467     {
 468       sym_obj = symbol_to_symbol_object (symbol);
 469       if (!sym_obj)
 470         return NULL;
 471     }
 472   else
 473     {
 474       sym_obj = Py_None;
 475       Py_INCREF (Py_None);
 476     }
 477
 478   return sym_obj;
 479 }
 480
 481 /* This function is called when an objfile is about to be freed.
 482    Invalidate the symbol as further actions on the symbol would result
 483    in bad data.  All access to obj->symbol should be gated by
 484    SYMPY_REQUIRE_VALID which will raise an exception on invalid
 485    symbols.  */
 486 static void
 487 del_objfile_symbols (struct objfile *objfile, void *datum)
 488 {
 489   symbol_object *obj = (symbol_object *) datum;
 490   while (obj)
 491     {
 492       symbol_object *next = obj->next;
 493
 494       obj->symbol = NULL;
 495       obj->next = NULL;
 496       obj->prev = NULL;
 497
 498       obj = next;
 499     }
 500 }
 501
 502 int
 503 gdbpy_initialize_symbols (void)
 504 {
 505   if (PyType_Ready (&symbol_object_type) < 0)
 506     return -1;
 507
 508   /* Register an objfile "free" callback so we can properly
 509      invalidate symbol when an object file that is about to be
 510      deleted.  */
 511   sympy_objfile_data_key
 512     = register_objfile_data_with_cleanup (NULL, del_objfile_symbols);
 513
 514   if (PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_UNDEF", LOC_UNDEF) < 0
 515       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_CONST",
 516                                   LOC_CONST) < 0
 517       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_STATIC",
 518                                   LOC_STATIC) < 0
 519       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_REGISTER",
 520                                   LOC_REGISTER) < 0
 521       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_ARG",
 522                                   LOC_ARG) < 0
 523       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_REF_ARG",
 524                                   LOC_REF_ARG) < 0
 525       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_LOCAL",
 526                                   LOC_LOCAL) < 0
 527       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_TYPEDEF",
 528                                   LOC_TYPEDEF) < 0
 529       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_LABEL",
 530                                   LOC_LABEL) < 0
 531       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_BLOCK",
 532                                   LOC_BLOCK) < 0
 533       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_CONST_BYTES",
 534                                   LOC_CONST_BYTES) < 0
 535       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_UNRESOLVED",
 536                                   LOC_UNRESOLVED) < 0
 537       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_OPTIMIZED_OUT",
 538                                   LOC_OPTIMIZED_OUT) < 0
 539       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_COMPUTED",
 540                                   LOC_COMPUTED) < 0
 541       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_REGPARM_ADDR",
 542                                   LOC_REGPARM_ADDR) < 0
 543       || PyModule_AddIntConstant (gdb_module, "SYMBOL_UNDEF_DOMAIN",
 544                                   UNDEF_DOMAIN) < 0
 545       || PyModule_AddIntConstant (gdb_module, "SYMBOL_VAR_DOMAIN",
 546                                   VAR_DOMAIN) < 0
 547       || PyModule_AddIntConstant (gdb_module, "SYMBOL_STRUCT_DOMAIN",
 548                                   STRUCT_DOMAIN) < 0
 549       || PyModule_AddIntConstant (gdb_module, "SYMBOL_LABEL_DOMAIN",
 550                                   LABEL_DOMAIN) < 0
 551       || PyModule_AddIntConstant (gdb_module, "SYMBOL_VARIABLES_DOMAIN",
 552                                   VARIABLES_DOMAIN) < 0
 553       || PyModule_AddIntConstant (gdb_module, "SYMBOL_FUNCTIONS_DOMAIN",
 554                                   FUNCTIONS_DOMAIN) < 0
 555       || PyModule_AddIntConstant (gdb_module, "SYMBOL_TYPES_DOMAIN",
 556                                   TYPES_DOMAIN) < 0)
 557     return -1;
 558
 559   return gdb_pymodule_addobject (gdb_module, "Symbol",
 560                                  (PyObject *) &symbol_object_type);
 561 }
 562
 563 \f
 564
 565 static PyGetSetDef symbol_object_getset[] = {
 566   { "type", sympy_get_type, NULL,
 567     "Type of the symbol.", NULL },
 568   { "symtab", sympy_get_symtab, NULL,
 569     "Symbol table in which the symbol appears.", NULL },
 570   { "name", sympy_get_name, NULL,
 571     "Name of the symbol, as it appears in the source code.", NULL },
 572   { "linkage_name", sympy_get_linkage_name, NULL,
 573     "Name of the symbol, as used by the linker (i.e., may be mangled).",
 574     NULL },
 575   { "print_name", sympy_get_print_name, NULL,
 576     "Name of the symbol in a form suitable for output.\n\
 577 This is either name or linkage_name, depending on whether the user asked GDB\n\
 578 to display demangled or mangled names.", NULL },
 579   { "addr_class", sympy_get_addr_class, NULL, "Address class of the symbol." },
 580   { "is_argument", sympy_is_argument, NULL,
 581     "True if the symbol is an argument of a function." },
 582   { "is_constant", sympy_is_constant, NULL,
 583     "True if the symbol is a constant." },
 584   { "is_function", sympy_is_function, NULL,
 585     "True if the symbol is a function or method." },
 586   { "is_variable", sympy_is_variable, NULL,
 587     "True if the symbol is a variable." },
 588   { "needs_frame", sympy_needs_frame, NULL,
 589     "True if the symbol requires a frame for evaluation." },
 590   { "line", sympy_line, NULL,
 591     "The source line number at which the symbol was defined." },
 592   { NULL }  /* Sentinel */
 593 };
 594
 595 static PyMethodDef symbol_object_methods[] = {
 596   { "is_valid", sympy_is_valid, METH_NOARGS,
 597     "is_valid () -> Boolean.\n\
 598 Return true if this symbol is valid, false if not." },
 599   { "value", sympy_value, METH_VARARGS,
 600     "value ([frame]) -> gdb.Value\n\
 601 Return the value of the symbol." },
 602   {NULL}  /* Sentinel */
 603 };
 604
 605 PyTypeObject symbol_object_type = {
 606   PyVarObject_HEAD_INIT (NULL, 0)
 607   "gdb.Symbol",                   /*tp_name*/
 608   sizeof (symbol_object),         /*tp_basicsize*/
 609   0,                              /*tp_itemsize*/
 610   sympy_dealloc,                  /*tp_dealloc*/
 611   0,                              /*tp_print*/
 612   0,                              /*tp_getattr*/
 613   0,                              /*tp_setattr*/
 614   0,                              /*tp_compare*/
 615   0,                              /*tp_repr*/
 616   0,                              /*tp_as_number*/
 617   0,                              /*tp_as_sequence*/
 618   0,                              /*tp_as_mapping*/
 619   0,                              /*tp_hash */
 620   0,                              /*tp_call*/
 621   sympy_str,                      /*tp_str*/
 622   0,                              /*tp_getattro*/
 623   0,                              /*tp_setattro*/
 624   0,                              /*tp_as_buffer*/
 625   Py_TPFLAGS_DEFAULT,             /*tp_flags*/
 626   "GDB symbol object",            /*tp_doc */
 627   0,                              /*tp_traverse */
 628   0,                              /*tp_clear */
 629   0,                              /*tp_richcompare */
 630   0,                              /*tp_weaklistoffset */
 631   0,                              /*tp_iter */
 632   0,                              /*tp_iternext */
 633   symbol_object_methods,          /*tp_methods */
 634   0,                              /*tp_members */
 635   symbol_object_getset            /*tp_getset */
 636 };