| 1 | /* General python/gdb code |
| 2 | |
| 3 | Copyright (C) 2008-2013 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 "arch-utils.h" |
| 22 | #include "command.h" |
| 23 | #include "ui-out.h" |
| 24 | #include "cli/cli-script.h" |
| 25 | #include "gdbcmd.h" |
| 26 | #include "progspace.h" |
| 27 | #include "objfiles.h" |
| 28 | #include "value.h" |
| 29 | #include "language.h" |
| 30 | #include "exceptions.h" |
| 31 | #include "event-loop.h" |
| 32 | #include "serial.h" |
| 33 | #include "readline/tilde.h" |
| 34 | #include "python.h" |
| 35 | #include "cli/cli-utils.h" |
| 36 | |
| 37 | #include <ctype.h> |
| 38 | |
| 39 | /* Declared constants and enum for python stack printing. */ |
| 40 | static const char python_excp_none[] = "none"; |
| 41 | static const char python_excp_full[] = "full"; |
| 42 | static const char python_excp_message[] = "message"; |
| 43 | |
| 44 | /* "set python print-stack" choices. */ |
| 45 | static const char *const python_excp_enums[] = |
| 46 | { |
| 47 | python_excp_none, |
| 48 | python_excp_full, |
| 49 | python_excp_message, |
| 50 | NULL |
| 51 | }; |
| 52 | |
| 53 | /* The exception printing variable. 'full' if we want to print the |
| 54 | error message and stack, 'none' if we want to print nothing, and |
| 55 | 'message' if we only want to print the error message. 'message' is |
| 56 | the default. */ |
| 57 | static const char *gdbpy_should_print_stack = python_excp_message; |
| 58 | |
| 59 | #ifdef HAVE_PYTHON |
| 60 | |
| 61 | #include "libiberty.h" |
| 62 | #include "cli/cli-decode.h" |
| 63 | #include "charset.h" |
| 64 | #include "top.h" |
| 65 | #include "solib.h" |
| 66 | #include "python-internal.h" |
| 67 | #include "linespec.h" |
| 68 | #include "source.h" |
| 69 | #include "version.h" |
| 70 | #include "target.h" |
| 71 | #include "gdbthread.h" |
| 72 | #include "observer.h" |
| 73 | #include "interps.h" |
| 74 | #include "event-top.h" |
| 75 | |
| 76 | static PyMethodDef GdbMethods[]; |
| 77 | |
| 78 | #ifdef IS_PY3K |
| 79 | static struct PyModuleDef GdbModuleDef; |
| 80 | #endif |
| 81 | |
| 82 | PyObject *gdb_module; |
| 83 | PyObject *gdb_python_module; |
| 84 | |
| 85 | /* Some string constants we may wish to use. */ |
| 86 | PyObject *gdbpy_to_string_cst; |
| 87 | PyObject *gdbpy_children_cst; |
| 88 | PyObject *gdbpy_display_hint_cst; |
| 89 | PyObject *gdbpy_doc_cst; |
| 90 | PyObject *gdbpy_enabled_cst; |
| 91 | PyObject *gdbpy_value_cst; |
| 92 | |
| 93 | /* The GdbError exception. */ |
| 94 | PyObject *gdbpy_gdberror_exc; |
| 95 | |
| 96 | /* The `gdb.error' base class. */ |
| 97 | PyObject *gdbpy_gdb_error; |
| 98 | |
| 99 | /* The `gdb.MemoryError' exception. */ |
| 100 | PyObject *gdbpy_gdb_memory_error; |
| 101 | |
| 102 | /* Architecture and language to be used in callbacks from |
| 103 | the Python interpreter. */ |
| 104 | struct gdbarch *python_gdbarch; |
| 105 | const struct language_defn *python_language; |
| 106 | |
| 107 | /* Restore global language and architecture and Python GIL state |
| 108 | when leaving the Python interpreter. */ |
| 109 | |
| 110 | struct python_env |
| 111 | { |
| 112 | PyGILState_STATE state; |
| 113 | struct gdbarch *gdbarch; |
| 114 | const struct language_defn *language; |
| 115 | PyObject *error_type, *error_value, *error_traceback; |
| 116 | }; |
| 117 | |
| 118 | static void |
| 119 | restore_python_env (void *p) |
| 120 | { |
| 121 | struct python_env *env = (struct python_env *)p; |
| 122 | |
| 123 | /* Leftover Python error is forbidden by Python Exception Handling. */ |
| 124 | if (PyErr_Occurred ()) |
| 125 | { |
| 126 | /* This order is similar to the one calling error afterwards. */ |
| 127 | gdbpy_print_stack (); |
| 128 | warning (_("internal error: Unhandled Python exception")); |
| 129 | } |
| 130 | |
| 131 | PyErr_Restore (env->error_type, env->error_value, env->error_traceback); |
| 132 | |
| 133 | PyGILState_Release (env->state); |
| 134 | python_gdbarch = env->gdbarch; |
| 135 | python_language = env->language; |
| 136 | xfree (env); |
| 137 | } |
| 138 | |
| 139 | /* Called before entering the Python interpreter to install the |
| 140 | current language and architecture to be used for Python values. */ |
| 141 | |
| 142 | struct cleanup * |
| 143 | ensure_python_env (struct gdbarch *gdbarch, |
| 144 | const struct language_defn *language) |
| 145 | { |
| 146 | struct python_env *env = xmalloc (sizeof *env); |
| 147 | |
| 148 | env->state = PyGILState_Ensure (); |
| 149 | env->gdbarch = python_gdbarch; |
| 150 | env->language = python_language; |
| 151 | |
| 152 | python_gdbarch = gdbarch; |
| 153 | python_language = language; |
| 154 | |
| 155 | /* Save it and ensure ! PyErr_Occurred () afterwards. */ |
| 156 | PyErr_Fetch (&env->error_type, &env->error_value, &env->error_traceback); |
| 157 | |
| 158 | return make_cleanup (restore_python_env, env); |
| 159 | } |
| 160 | |
| 161 | /* Clear the quit flag. */ |
| 162 | |
| 163 | void |
| 164 | clear_quit_flag (void) |
| 165 | { |
| 166 | /* This clears the flag as a side effect. */ |
| 167 | PyOS_InterruptOccurred (); |
| 168 | } |
| 169 | |
| 170 | /* Set the quit flag. */ |
| 171 | |
| 172 | void |
| 173 | set_quit_flag (void) |
| 174 | { |
| 175 | PyErr_SetInterrupt (); |
| 176 | } |
| 177 | |
| 178 | /* Return true if the quit flag has been set, false otherwise. */ |
| 179 | |
| 180 | int |
| 181 | check_quit_flag (void) |
| 182 | { |
| 183 | return PyOS_InterruptOccurred (); |
| 184 | } |
| 185 | |
| 186 | /* Evaluate a Python command like PyRun_SimpleString, but uses |
| 187 | Py_single_input which prints the result of expressions, and does |
| 188 | not automatically print the stack on errors. */ |
| 189 | |
| 190 | static int |
| 191 | eval_python_command (const char *command) |
| 192 | { |
| 193 | PyObject *m, *d, *v; |
| 194 | |
| 195 | m = PyImport_AddModule ("__main__"); |
| 196 | if (m == NULL) |
| 197 | return -1; |
| 198 | |
| 199 | d = PyModule_GetDict (m); |
| 200 | if (d == NULL) |
| 201 | return -1; |
| 202 | v = PyRun_StringFlags (command, Py_single_input, d, d, NULL); |
| 203 | if (v == NULL) |
| 204 | return -1; |
| 205 | |
| 206 | Py_DECREF (v); |
| 207 | #ifndef IS_PY3K |
| 208 | if (Py_FlushLine ()) |
| 209 | PyErr_Clear (); |
| 210 | #endif |
| 211 | |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | /* Implementation of the gdb "python-interactive" command. */ |
| 216 | |
| 217 | static void |
| 218 | python_interactive_command (char *arg, int from_tty) |
| 219 | { |
| 220 | struct cleanup *cleanup; |
| 221 | int err; |
| 222 | |
| 223 | cleanup = make_cleanup_restore_integer (&interpreter_async); |
| 224 | interpreter_async = 0; |
| 225 | |
| 226 | arg = skip_spaces (arg); |
| 227 | |
| 228 | ensure_python_env (get_current_arch (), current_language); |
| 229 | |
| 230 | if (arg && *arg) |
| 231 | { |
| 232 | int len = strlen (arg); |
| 233 | char *script = xmalloc (len + 2); |
| 234 | |
| 235 | strcpy (script, arg); |
| 236 | script[len] = '\n'; |
| 237 | script[len + 1] = '\0'; |
| 238 | err = eval_python_command (script); |
| 239 | xfree (script); |
| 240 | } |
| 241 | else |
| 242 | { |
| 243 | err = PyRun_InteractiveLoop (instream, "<stdin>"); |
| 244 | dont_repeat (); |
| 245 | } |
| 246 | |
| 247 | if (err) |
| 248 | { |
| 249 | gdbpy_print_stack (); |
| 250 | error (_("Error while executing Python code.")); |
| 251 | } |
| 252 | |
| 253 | do_cleanups (cleanup); |
| 254 | } |
| 255 | |
| 256 | /* A wrapper around PyRun_SimpleFile. FILE is the Python script to run |
| 257 | named FILENAME. |
| 258 | |
| 259 | On Windows hosts few users would build Python themselves (this is no |
| 260 | trivial task on this platform), and thus use binaries built by |
| 261 | someone else instead. There may happen situation where the Python |
| 262 | library and GDB are using two different versions of the C runtime |
| 263 | library. Python, being built with VC, would use one version of the |
| 264 | msvcr DLL (Eg. msvcr100.dll), while MinGW uses msvcrt.dll. |
| 265 | A FILE * from one runtime does not necessarily operate correctly in |
| 266 | the other runtime. |
| 267 | |
| 268 | To work around this potential issue, we create on Windows hosts the |
| 269 | FILE object using Python routines, thus making sure that it is |
| 270 | compatible with the Python library. */ |
| 271 | |
| 272 | static void |
| 273 | python_run_simple_file (FILE *file, const char *filename) |
| 274 | { |
| 275 | #ifndef _WIN32 |
| 276 | |
| 277 | PyRun_SimpleFile (file, filename); |
| 278 | |
| 279 | #else /* _WIN32 */ |
| 280 | |
| 281 | char *full_path; |
| 282 | PyObject *python_file; |
| 283 | struct cleanup *cleanup; |
| 284 | |
| 285 | /* Because we have a string for a filename, and are using Python to |
| 286 | open the file, we need to expand any tilde in the path first. */ |
| 287 | full_path = tilde_expand (filename); |
| 288 | cleanup = make_cleanup (xfree, full_path); |
| 289 | python_file = PyFile_FromString (full_path, "r"); |
| 290 | if (! python_file) |
| 291 | { |
| 292 | do_cleanups (cleanup); |
| 293 | gdbpy_print_stack (); |
| 294 | error (_("Error while opening file: %s"), full_path); |
| 295 | } |
| 296 | |
| 297 | make_cleanup_py_decref (python_file); |
| 298 | PyRun_SimpleFile (PyFile_AsFile (python_file), filename); |
| 299 | do_cleanups (cleanup); |
| 300 | |
| 301 | #endif /* _WIN32 */ |
| 302 | } |
| 303 | |
| 304 | /* Given a command_line, return a command string suitable for passing |
| 305 | to Python. Lines in the string are separated by newlines. The |
| 306 | return value is allocated using xmalloc and the caller is |
| 307 | responsible for freeing it. */ |
| 308 | |
| 309 | static char * |
| 310 | compute_python_string (struct command_line *l) |
| 311 | { |
| 312 | struct command_line *iter; |
| 313 | char *script = NULL; |
| 314 | int size = 0; |
| 315 | int here; |
| 316 | |
| 317 | for (iter = l; iter; iter = iter->next) |
| 318 | size += strlen (iter->line) + 1; |
| 319 | |
| 320 | script = xmalloc (size + 1); |
| 321 | here = 0; |
| 322 | for (iter = l; iter; iter = iter->next) |
| 323 | { |
| 324 | int len = strlen (iter->line); |
| 325 | |
| 326 | strcpy (&script[here], iter->line); |
| 327 | here += len; |
| 328 | script[here++] = '\n'; |
| 329 | } |
| 330 | script[here] = '\0'; |
| 331 | return script; |
| 332 | } |
| 333 | |
| 334 | /* Take a command line structure representing a 'python' command, and |
| 335 | evaluate its body using the Python interpreter. */ |
| 336 | |
| 337 | void |
| 338 | eval_python_from_control_command (struct command_line *cmd) |
| 339 | { |
| 340 | int ret; |
| 341 | char *script; |
| 342 | struct cleanup *cleanup; |
| 343 | |
| 344 | if (cmd->body_count != 1) |
| 345 | error (_("Invalid \"python\" block structure.")); |
| 346 | |
| 347 | cleanup = ensure_python_env (get_current_arch (), current_language); |
| 348 | |
| 349 | script = compute_python_string (cmd->body_list[0]); |
| 350 | ret = PyRun_SimpleString (script); |
| 351 | xfree (script); |
| 352 | if (ret) |
| 353 | error (_("Error while executing Python code.")); |
| 354 | |
| 355 | do_cleanups (cleanup); |
| 356 | } |
| 357 | |
| 358 | /* Implementation of the gdb "python" command. */ |
| 359 | |
| 360 | static void |
| 361 | python_command (char *arg, int from_tty) |
| 362 | { |
| 363 | struct cleanup *cleanup; |
| 364 | |
| 365 | cleanup = ensure_python_env (get_current_arch (), current_language); |
| 366 | |
| 367 | make_cleanup_restore_integer (&interpreter_async); |
| 368 | interpreter_async = 0; |
| 369 | |
| 370 | arg = skip_spaces (arg); |
| 371 | if (arg && *arg) |
| 372 | { |
| 373 | if (PyRun_SimpleString (arg)) |
| 374 | error (_("Error while executing Python code.")); |
| 375 | } |
| 376 | else |
| 377 | { |
| 378 | struct command_line *l = get_command_line (python_control, ""); |
| 379 | |
| 380 | make_cleanup_free_command_lines (&l); |
| 381 | execute_control_command_untraced (l); |
| 382 | } |
| 383 | |
| 384 | do_cleanups (cleanup); |
| 385 | } |
| 386 | |
| 387 | \f |
| 388 | |
| 389 | /* Transform a gdb parameters's value into a Python value. May return |
| 390 | NULL (and set a Python exception) on error. Helper function for |
| 391 | get_parameter. */ |
| 392 | PyObject * |
| 393 | gdbpy_parameter_value (enum var_types type, void *var) |
| 394 | { |
| 395 | switch (type) |
| 396 | { |
| 397 | case var_string: |
| 398 | case var_string_noescape: |
| 399 | case var_optional_filename: |
| 400 | case var_filename: |
| 401 | case var_enum: |
| 402 | { |
| 403 | char *str = * (char **) var; |
| 404 | |
| 405 | if (! str) |
| 406 | str = ""; |
| 407 | return PyString_Decode (str, strlen (str), host_charset (), NULL); |
| 408 | } |
| 409 | |
| 410 | case var_boolean: |
| 411 | { |
| 412 | if (* (int *) var) |
| 413 | Py_RETURN_TRUE; |
| 414 | else |
| 415 | Py_RETURN_FALSE; |
| 416 | } |
| 417 | |
| 418 | case var_auto_boolean: |
| 419 | { |
| 420 | enum auto_boolean ab = * (enum auto_boolean *) var; |
| 421 | |
| 422 | if (ab == AUTO_BOOLEAN_TRUE) |
| 423 | Py_RETURN_TRUE; |
| 424 | else if (ab == AUTO_BOOLEAN_FALSE) |
| 425 | Py_RETURN_FALSE; |
| 426 | else |
| 427 | Py_RETURN_NONE; |
| 428 | } |
| 429 | |
| 430 | case var_integer: |
| 431 | if ((* (int *) var) == INT_MAX) |
| 432 | Py_RETURN_NONE; |
| 433 | /* Fall through. */ |
| 434 | case var_zinteger: |
| 435 | return PyLong_FromLong (* (int *) var); |
| 436 | |
| 437 | case var_uinteger: |
| 438 | { |
| 439 | unsigned int val = * (unsigned int *) var; |
| 440 | |
| 441 | if (val == UINT_MAX) |
| 442 | Py_RETURN_NONE; |
| 443 | return PyLong_FromUnsignedLong (val); |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | return PyErr_Format (PyExc_RuntimeError, |
| 448 | _("Programmer error: unhandled type.")); |
| 449 | } |
| 450 | |
| 451 | /* A Python function which returns a gdb parameter's value as a Python |
| 452 | value. */ |
| 453 | |
| 454 | PyObject * |
| 455 | gdbpy_parameter (PyObject *self, PyObject *args) |
| 456 | { |
| 457 | struct cmd_list_element *alias, *prefix, *cmd; |
| 458 | const char *arg; |
| 459 | char *newarg; |
| 460 | int found = -1; |
| 461 | volatile struct gdb_exception except; |
| 462 | |
| 463 | if (! PyArg_ParseTuple (args, "s", &arg)) |
| 464 | return NULL; |
| 465 | |
| 466 | newarg = concat ("show ", arg, (char *) NULL); |
| 467 | |
| 468 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 469 | { |
| 470 | found = lookup_cmd_composition (newarg, &alias, &prefix, &cmd); |
| 471 | } |
| 472 | xfree (newarg); |
| 473 | GDB_PY_HANDLE_EXCEPTION (except); |
| 474 | if (!found) |
| 475 | return PyErr_Format (PyExc_RuntimeError, |
| 476 | _("Could not find parameter `%s'."), arg); |
| 477 | |
| 478 | if (! cmd->var) |
| 479 | return PyErr_Format (PyExc_RuntimeError, |
| 480 | _("`%s' is not a parameter."), arg); |
| 481 | return gdbpy_parameter_value (cmd->var_type, cmd->var); |
| 482 | } |
| 483 | |
| 484 | /* Wrapper for target_charset. */ |
| 485 | |
| 486 | static PyObject * |
| 487 | gdbpy_target_charset (PyObject *self, PyObject *args) |
| 488 | { |
| 489 | const char *cset = target_charset (python_gdbarch); |
| 490 | |
| 491 | return PyUnicode_Decode (cset, strlen (cset), host_charset (), NULL); |
| 492 | } |
| 493 | |
| 494 | /* Wrapper for target_wide_charset. */ |
| 495 | |
| 496 | static PyObject * |
| 497 | gdbpy_target_wide_charset (PyObject *self, PyObject *args) |
| 498 | { |
| 499 | const char *cset = target_wide_charset (python_gdbarch); |
| 500 | |
| 501 | return PyUnicode_Decode (cset, strlen (cset), host_charset (), NULL); |
| 502 | } |
| 503 | |
| 504 | /* A Python function which evaluates a string using the gdb CLI. */ |
| 505 | |
| 506 | static PyObject * |
| 507 | execute_gdb_command (PyObject *self, PyObject *args, PyObject *kw) |
| 508 | { |
| 509 | const char *arg; |
| 510 | PyObject *from_tty_obj = NULL, *to_string_obj = NULL; |
| 511 | int from_tty, to_string; |
| 512 | volatile struct gdb_exception except; |
| 513 | static char *keywords[] = {"command", "from_tty", "to_string", NULL }; |
| 514 | char *result = NULL; |
| 515 | |
| 516 | if (! PyArg_ParseTupleAndKeywords (args, kw, "s|O!O!", keywords, &arg, |
| 517 | &PyBool_Type, &from_tty_obj, |
| 518 | &PyBool_Type, &to_string_obj)) |
| 519 | return NULL; |
| 520 | |
| 521 | from_tty = 0; |
| 522 | if (from_tty_obj) |
| 523 | { |
| 524 | int cmp = PyObject_IsTrue (from_tty_obj); |
| 525 | if (cmp < 0) |
| 526 | return NULL; |
| 527 | from_tty = cmp; |
| 528 | } |
| 529 | |
| 530 | to_string = 0; |
| 531 | if (to_string_obj) |
| 532 | { |
| 533 | int cmp = PyObject_IsTrue (to_string_obj); |
| 534 | if (cmp < 0) |
| 535 | return NULL; |
| 536 | to_string = cmp; |
| 537 | } |
| 538 | |
| 539 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 540 | { |
| 541 | /* Copy the argument text in case the command modifies it. */ |
| 542 | char *copy = xstrdup (arg); |
| 543 | struct cleanup *cleanup = make_cleanup (xfree, copy); |
| 544 | |
| 545 | make_cleanup_restore_integer (&interpreter_async); |
| 546 | interpreter_async = 0; |
| 547 | |
| 548 | prevent_dont_repeat (); |
| 549 | if (to_string) |
| 550 | result = execute_command_to_string (copy, from_tty); |
| 551 | else |
| 552 | { |
| 553 | result = NULL; |
| 554 | execute_command (copy, from_tty); |
| 555 | } |
| 556 | |
| 557 | do_cleanups (cleanup); |
| 558 | } |
| 559 | GDB_PY_HANDLE_EXCEPTION (except); |
| 560 | |
| 561 | /* Do any commands attached to breakpoint we stopped at. */ |
| 562 | bpstat_do_actions (); |
| 563 | |
| 564 | if (result) |
| 565 | { |
| 566 | PyObject *r = PyString_FromString (result); |
| 567 | xfree (result); |
| 568 | return r; |
| 569 | } |
| 570 | Py_RETURN_NONE; |
| 571 | } |
| 572 | |
| 573 | /* Implementation of gdb.solib_name (Long) -> String. |
| 574 | Returns the name of the shared library holding a given address, or None. */ |
| 575 | |
| 576 | static PyObject * |
| 577 | gdbpy_solib_name (PyObject *self, PyObject *args) |
| 578 | { |
| 579 | char *soname; |
| 580 | PyObject *str_obj; |
| 581 | gdb_py_longest pc; |
| 582 | |
| 583 | if (!PyArg_ParseTuple (args, GDB_PY_LL_ARG, &pc)) |
| 584 | return NULL; |
| 585 | |
| 586 | soname = solib_name_from_address (current_program_space, pc); |
| 587 | if (soname) |
| 588 | str_obj = PyString_Decode (soname, strlen (soname), host_charset (), NULL); |
| 589 | else |
| 590 | { |
| 591 | str_obj = Py_None; |
| 592 | Py_INCREF (Py_None); |
| 593 | } |
| 594 | |
| 595 | return str_obj; |
| 596 | } |
| 597 | |
| 598 | /* A Python function which is a wrapper for decode_line_1. */ |
| 599 | |
| 600 | static PyObject * |
| 601 | gdbpy_decode_line (PyObject *self, PyObject *args) |
| 602 | { |
| 603 | struct symtabs_and_lines sals = { NULL, 0 }; /* Initialize to |
| 604 | appease gcc. */ |
| 605 | struct symtab_and_line sal; |
| 606 | const char *arg = NULL; |
| 607 | char *copy_to_free = NULL, *copy = NULL; |
| 608 | struct cleanup *cleanups; |
| 609 | PyObject *result = NULL; |
| 610 | PyObject *return_result = NULL; |
| 611 | PyObject *unparsed = NULL; |
| 612 | volatile struct gdb_exception except; |
| 613 | |
| 614 | if (! PyArg_ParseTuple (args, "|s", &arg)) |
| 615 | return NULL; |
| 616 | |
| 617 | cleanups = make_cleanup (null_cleanup, NULL); |
| 618 | |
| 619 | sals.sals = NULL; |
| 620 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 621 | { |
| 622 | if (arg) |
| 623 | { |
| 624 | copy = xstrdup (arg); |
| 625 | copy_to_free = copy; |
| 626 | sals = decode_line_1 (©, 0, 0, 0); |
| 627 | } |
| 628 | else |
| 629 | { |
| 630 | set_default_source_symtab_and_line (); |
| 631 | sal = get_current_source_symtab_and_line (); |
| 632 | sals.sals = &sal; |
| 633 | sals.nelts = 1; |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | if (sals.sals != NULL && sals.sals != &sal) |
| 638 | { |
| 639 | make_cleanup (xfree, copy_to_free); |
| 640 | make_cleanup (xfree, sals.sals); |
| 641 | } |
| 642 | |
| 643 | if (except.reason < 0) |
| 644 | { |
| 645 | do_cleanups (cleanups); |
| 646 | /* We know this will always throw. */ |
| 647 | GDB_PY_HANDLE_EXCEPTION (except); |
| 648 | } |
| 649 | |
| 650 | if (sals.nelts) |
| 651 | { |
| 652 | int i; |
| 653 | |
| 654 | result = PyTuple_New (sals.nelts); |
| 655 | if (! result) |
| 656 | goto error; |
| 657 | for (i = 0; i < sals.nelts; ++i) |
| 658 | { |
| 659 | PyObject *obj; |
| 660 | |
| 661 | obj = symtab_and_line_to_sal_object (sals.sals[i]); |
| 662 | if (! obj) |
| 663 | { |
| 664 | Py_DECREF (result); |
| 665 | goto error; |
| 666 | } |
| 667 | |
| 668 | PyTuple_SetItem (result, i, obj); |
| 669 | } |
| 670 | } |
| 671 | else |
| 672 | { |
| 673 | result = Py_None; |
| 674 | Py_INCREF (Py_None); |
| 675 | } |
| 676 | |
| 677 | return_result = PyTuple_New (2); |
| 678 | if (! return_result) |
| 679 | { |
| 680 | Py_DECREF (result); |
| 681 | goto error; |
| 682 | } |
| 683 | |
| 684 | if (copy && strlen (copy) > 0) |
| 685 | { |
| 686 | unparsed = PyString_FromString (copy); |
| 687 | if (unparsed == NULL) |
| 688 | { |
| 689 | Py_DECREF (result); |
| 690 | Py_DECREF (return_result); |
| 691 | return_result = NULL; |
| 692 | goto error; |
| 693 | } |
| 694 | } |
| 695 | else |
| 696 | { |
| 697 | unparsed = Py_None; |
| 698 | Py_INCREF (Py_None); |
| 699 | } |
| 700 | |
| 701 | PyTuple_SetItem (return_result, 0, unparsed); |
| 702 | PyTuple_SetItem (return_result, 1, result); |
| 703 | |
| 704 | error: |
| 705 | do_cleanups (cleanups); |
| 706 | |
| 707 | return return_result; |
| 708 | } |
| 709 | |
| 710 | /* Parse a string and evaluate it as an expression. */ |
| 711 | static PyObject * |
| 712 | gdbpy_parse_and_eval (PyObject *self, PyObject *args) |
| 713 | { |
| 714 | const char *expr_str; |
| 715 | struct value *result = NULL; |
| 716 | volatile struct gdb_exception except; |
| 717 | |
| 718 | if (!PyArg_ParseTuple (args, "s", &expr_str)) |
| 719 | return NULL; |
| 720 | |
| 721 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 722 | { |
| 723 | result = parse_and_eval (expr_str); |
| 724 | } |
| 725 | GDB_PY_HANDLE_EXCEPTION (except); |
| 726 | |
| 727 | return value_to_value_object (result); |
| 728 | } |
| 729 | |
| 730 | /* Implementation of gdb.find_pc_line function. |
| 731 | Returns the gdb.Symtab_and_line object corresponding to a PC value. */ |
| 732 | |
| 733 | static PyObject * |
| 734 | gdbpy_find_pc_line (PyObject *self, PyObject *args) |
| 735 | { |
| 736 | gdb_py_ulongest pc_llu; |
| 737 | volatile struct gdb_exception except; |
| 738 | PyObject *result = NULL; /* init for gcc -Wall */ |
| 739 | |
| 740 | if (!PyArg_ParseTuple (args, GDB_PY_LLU_ARG, &pc_llu)) |
| 741 | return NULL; |
| 742 | |
| 743 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 744 | { |
| 745 | struct symtab_and_line sal; |
| 746 | CORE_ADDR pc; |
| 747 | |
| 748 | pc = (CORE_ADDR) pc_llu; |
| 749 | sal = find_pc_line (pc, 0); |
| 750 | result = symtab_and_line_to_sal_object (sal); |
| 751 | } |
| 752 | GDB_PY_HANDLE_EXCEPTION (except); |
| 753 | |
| 754 | return result; |
| 755 | } |
| 756 | |
| 757 | /* Read a file as Python code. |
| 758 | FILE is the file to run. FILENAME is name of the file FILE. |
| 759 | This does not throw any errors. If an exception occurs python will print |
| 760 | the traceback and clear the error indicator. */ |
| 761 | |
| 762 | void |
| 763 | source_python_script (FILE *file, const char *filename) |
| 764 | { |
| 765 | struct cleanup *cleanup; |
| 766 | |
| 767 | cleanup = ensure_python_env (get_current_arch (), current_language); |
| 768 | python_run_simple_file (file, filename); |
| 769 | do_cleanups (cleanup); |
| 770 | } |
| 771 | |
| 772 | \f |
| 773 | |
| 774 | /* Posting and handling events. */ |
| 775 | |
| 776 | /* A single event. */ |
| 777 | struct gdbpy_event |
| 778 | { |
| 779 | /* The Python event. This is just a callable object. */ |
| 780 | PyObject *event; |
| 781 | /* The next event. */ |
| 782 | struct gdbpy_event *next; |
| 783 | }; |
| 784 | |
| 785 | /* All pending events. */ |
| 786 | static struct gdbpy_event *gdbpy_event_list; |
| 787 | /* The final link of the event list. */ |
| 788 | static struct gdbpy_event **gdbpy_event_list_end; |
| 789 | |
| 790 | /* We use a file handler, and not an async handler, so that we can |
| 791 | wake up the main thread even when it is blocked in poll(). */ |
| 792 | static struct serial *gdbpy_event_fds[2]; |
| 793 | |
| 794 | /* The file handler callback. This reads from the internal pipe, and |
| 795 | then processes the Python event queue. This will always be run in |
| 796 | the main gdb thread. */ |
| 797 | |
| 798 | static void |
| 799 | gdbpy_run_events (struct serial *scb, void *context) |
| 800 | { |
| 801 | struct cleanup *cleanup; |
| 802 | |
| 803 | cleanup = ensure_python_env (get_current_arch (), current_language); |
| 804 | |
| 805 | /* Flush the fd. Do this before flushing the events list, so that |
| 806 | any new event post afterwards is sure to re-awake the event |
| 807 | loop. */ |
| 808 | while (serial_readchar (gdbpy_event_fds[0], 0) >= 0) |
| 809 | ; |
| 810 | |
| 811 | while (gdbpy_event_list) |
| 812 | { |
| 813 | /* Dispatching the event might push a new element onto the event |
| 814 | loop, so we update here "atomically enough". */ |
| 815 | struct gdbpy_event *item = gdbpy_event_list; |
| 816 | gdbpy_event_list = gdbpy_event_list->next; |
| 817 | if (gdbpy_event_list == NULL) |
| 818 | gdbpy_event_list_end = &gdbpy_event_list; |
| 819 | |
| 820 | /* Ignore errors. */ |
| 821 | if (PyObject_CallObject (item->event, NULL) == NULL) |
| 822 | PyErr_Clear (); |
| 823 | |
| 824 | Py_DECREF (item->event); |
| 825 | xfree (item); |
| 826 | } |
| 827 | |
| 828 | do_cleanups (cleanup); |
| 829 | } |
| 830 | |
| 831 | /* Submit an event to the gdb thread. */ |
| 832 | static PyObject * |
| 833 | gdbpy_post_event (PyObject *self, PyObject *args) |
| 834 | { |
| 835 | struct gdbpy_event *event; |
| 836 | PyObject *func; |
| 837 | int wakeup; |
| 838 | |
| 839 | if (!PyArg_ParseTuple (args, "O", &func)) |
| 840 | return NULL; |
| 841 | |
| 842 | if (!PyCallable_Check (func)) |
| 843 | { |
| 844 | PyErr_SetString (PyExc_RuntimeError, |
| 845 | _("Posted event is not callable")); |
| 846 | return NULL; |
| 847 | } |
| 848 | |
| 849 | Py_INCREF (func); |
| 850 | |
| 851 | /* From here until the end of the function, we have the GIL, so we |
| 852 | can operate on our global data structures without worrying. */ |
| 853 | wakeup = gdbpy_event_list == NULL; |
| 854 | |
| 855 | event = XNEW (struct gdbpy_event); |
| 856 | event->event = func; |
| 857 | event->next = NULL; |
| 858 | *gdbpy_event_list_end = event; |
| 859 | gdbpy_event_list_end = &event->next; |
| 860 | |
| 861 | /* Wake up gdb when needed. */ |
| 862 | if (wakeup) |
| 863 | { |
| 864 | char c = 'q'; /* Anything. */ |
| 865 | |
| 866 | if (serial_write (gdbpy_event_fds[1], &c, 1)) |
| 867 | return PyErr_SetFromErrno (PyExc_IOError); |
| 868 | } |
| 869 | |
| 870 | Py_RETURN_NONE; |
| 871 | } |
| 872 | |
| 873 | /* Initialize the Python event handler. */ |
| 874 | static void |
| 875 | gdbpy_initialize_events (void) |
| 876 | { |
| 877 | if (serial_pipe (gdbpy_event_fds) == 0) |
| 878 | { |
| 879 | gdbpy_event_list_end = &gdbpy_event_list; |
| 880 | serial_async (gdbpy_event_fds[0], gdbpy_run_events, NULL); |
| 881 | } |
| 882 | } |
| 883 | |
| 884 | \f |
| 885 | |
| 886 | static void |
| 887 | before_prompt_hook (const char *current_gdb_prompt) |
| 888 | { |
| 889 | struct cleanup *cleanup; |
| 890 | char *prompt = NULL; |
| 891 | |
| 892 | cleanup = ensure_python_env (get_current_arch (), current_language); |
| 893 | |
| 894 | if (gdb_python_module |
| 895 | && PyObject_HasAttrString (gdb_python_module, "prompt_hook")) |
| 896 | { |
| 897 | PyObject *hook; |
| 898 | |
| 899 | hook = PyObject_GetAttrString (gdb_python_module, "prompt_hook"); |
| 900 | if (hook == NULL) |
| 901 | goto fail; |
| 902 | |
| 903 | if (PyCallable_Check (hook)) |
| 904 | { |
| 905 | PyObject *result; |
| 906 | PyObject *current_prompt; |
| 907 | |
| 908 | current_prompt = PyString_FromString (current_gdb_prompt); |
| 909 | if (current_prompt == NULL) |
| 910 | goto fail; |
| 911 | |
| 912 | result = PyObject_CallFunctionObjArgs (hook, current_prompt, NULL); |
| 913 | |
| 914 | Py_DECREF (current_prompt); |
| 915 | |
| 916 | if (result == NULL) |
| 917 | goto fail; |
| 918 | |
| 919 | make_cleanup_py_decref (result); |
| 920 | |
| 921 | /* Return type should be None, or a String. If it is None, |
| 922 | fall through, we will not set a prompt. If it is a |
| 923 | string, set PROMPT. Anything else, set an exception. */ |
| 924 | if (result != Py_None && ! PyString_Check (result)) |
| 925 | { |
| 926 | PyErr_Format (PyExc_RuntimeError, |
| 927 | _("Return from prompt_hook must " \ |
| 928 | "be either a Python string, or None")); |
| 929 | goto fail; |
| 930 | } |
| 931 | |
| 932 | if (result != Py_None) |
| 933 | { |
| 934 | prompt = python_string_to_host_string (result); |
| 935 | |
| 936 | if (prompt == NULL) |
| 937 | goto fail; |
| 938 | else |
| 939 | make_cleanup (xfree, prompt); |
| 940 | } |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | /* If a prompt has been set, PROMPT will not be NULL. If it is |
| 945 | NULL, do not set the prompt. */ |
| 946 | if (prompt != NULL) |
| 947 | set_prompt (prompt); |
| 948 | |
| 949 | do_cleanups (cleanup); |
| 950 | return; |
| 951 | |
| 952 | fail: |
| 953 | gdbpy_print_stack (); |
| 954 | do_cleanups (cleanup); |
| 955 | return; |
| 956 | } |
| 957 | |
| 958 | \f |
| 959 | |
| 960 | /* Printing. */ |
| 961 | |
| 962 | /* A python function to write a single string using gdb's filtered |
| 963 | output stream . The optional keyword STREAM can be used to write |
| 964 | to a particular stream. The default stream is to gdb_stdout. */ |
| 965 | |
| 966 | static PyObject * |
| 967 | gdbpy_write (PyObject *self, PyObject *args, PyObject *kw) |
| 968 | { |
| 969 | const char *arg; |
| 970 | static char *keywords[] = {"text", "stream", NULL }; |
| 971 | int stream_type = 0; |
| 972 | volatile struct gdb_exception except; |
| 973 | |
| 974 | if (! PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &arg, |
| 975 | &stream_type)) |
| 976 | return NULL; |
| 977 | |
| 978 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 979 | { |
| 980 | switch (stream_type) |
| 981 | { |
| 982 | case 1: |
| 983 | { |
| 984 | fprintf_filtered (gdb_stderr, "%s", arg); |
| 985 | break; |
| 986 | } |
| 987 | case 2: |
| 988 | { |
| 989 | fprintf_filtered (gdb_stdlog, "%s", arg); |
| 990 | break; |
| 991 | } |
| 992 | default: |
| 993 | fprintf_filtered (gdb_stdout, "%s", arg); |
| 994 | } |
| 995 | } |
| 996 | GDB_PY_HANDLE_EXCEPTION (except); |
| 997 | |
| 998 | Py_RETURN_NONE; |
| 999 | } |
| 1000 | |
| 1001 | /* A python function to flush a gdb stream. The optional keyword |
| 1002 | STREAM can be used to flush a particular stream. The default stream |
| 1003 | is gdb_stdout. */ |
| 1004 | |
| 1005 | static PyObject * |
| 1006 | gdbpy_flush (PyObject *self, PyObject *args, PyObject *kw) |
| 1007 | { |
| 1008 | static char *keywords[] = {"stream", NULL }; |
| 1009 | int stream_type = 0; |
| 1010 | |
| 1011 | if (! PyArg_ParseTupleAndKeywords (args, kw, "|i", keywords, |
| 1012 | &stream_type)) |
| 1013 | return NULL; |
| 1014 | |
| 1015 | switch (stream_type) |
| 1016 | { |
| 1017 | case 1: |
| 1018 | { |
| 1019 | gdb_flush (gdb_stderr); |
| 1020 | break; |
| 1021 | } |
| 1022 | case 2: |
| 1023 | { |
| 1024 | gdb_flush (gdb_stdlog); |
| 1025 | break; |
| 1026 | } |
| 1027 | default: |
| 1028 | gdb_flush (gdb_stdout); |
| 1029 | } |
| 1030 | |
| 1031 | Py_RETURN_NONE; |
| 1032 | } |
| 1033 | |
| 1034 | /* Print a python exception trace, print just a message, or print |
| 1035 | nothing and clear the python exception, depending on |
| 1036 | gdbpy_should_print_stack. Only call this if a python exception is |
| 1037 | set. */ |
| 1038 | void |
| 1039 | gdbpy_print_stack (void) |
| 1040 | { |
| 1041 | volatile struct gdb_exception except; |
| 1042 | |
| 1043 | /* Print "none", just clear exception. */ |
| 1044 | if (gdbpy_should_print_stack == python_excp_none) |
| 1045 | { |
| 1046 | PyErr_Clear (); |
| 1047 | } |
| 1048 | /* Print "full" message and backtrace. */ |
| 1049 | else if (gdbpy_should_print_stack == python_excp_full) |
| 1050 | { |
| 1051 | PyErr_Print (); |
| 1052 | /* PyErr_Print doesn't necessarily end output with a newline. |
| 1053 | This works because Python's stdout/stderr is fed through |
| 1054 | printf_filtered. */ |
| 1055 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 1056 | { |
| 1057 | begin_line (); |
| 1058 | } |
| 1059 | } |
| 1060 | /* Print "message", just error print message. */ |
| 1061 | else |
| 1062 | { |
| 1063 | PyObject *ptype, *pvalue, *ptraceback; |
| 1064 | char *msg = NULL, *type = NULL; |
| 1065 | |
| 1066 | PyErr_Fetch (&ptype, &pvalue, &ptraceback); |
| 1067 | |
| 1068 | /* Fetch the error message contained within ptype, pvalue. */ |
| 1069 | msg = gdbpy_exception_to_string (ptype, pvalue); |
| 1070 | type = gdbpy_obj_to_string (ptype); |
| 1071 | |
| 1072 | TRY_CATCH (except, RETURN_MASK_ALL) |
| 1073 | { |
| 1074 | if (msg == NULL) |
| 1075 | { |
| 1076 | /* An error occurred computing the string representation of the |
| 1077 | error message. */ |
| 1078 | fprintf_filtered (gdb_stderr, |
| 1079 | _("Error occurred computing Python error" \ |
| 1080 | "message.\n")); |
| 1081 | } |
| 1082 | else |
| 1083 | fprintf_filtered (gdb_stderr, "Python Exception %s %s: \n", |
| 1084 | type, msg); |
| 1085 | } |
| 1086 | |
| 1087 | Py_XDECREF (ptype); |
| 1088 | Py_XDECREF (pvalue); |
| 1089 | Py_XDECREF (ptraceback); |
| 1090 | xfree (msg); |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | \f |
| 1095 | |
| 1096 | /* Return the current Progspace. |
| 1097 | There always is one. */ |
| 1098 | |
| 1099 | static PyObject * |
| 1100 | gdbpy_get_current_progspace (PyObject *unused1, PyObject *unused2) |
| 1101 | { |
| 1102 | PyObject *result; |
| 1103 | |
| 1104 | result = pspace_to_pspace_object (current_program_space); |
| 1105 | if (result) |
| 1106 | Py_INCREF (result); |
| 1107 | return result; |
| 1108 | } |
| 1109 | |
| 1110 | /* Return a sequence holding all the Progspaces. */ |
| 1111 | |
| 1112 | static PyObject * |
| 1113 | gdbpy_progspaces (PyObject *unused1, PyObject *unused2) |
| 1114 | { |
| 1115 | struct program_space *ps; |
| 1116 | PyObject *list; |
| 1117 | |
| 1118 | list = PyList_New (0); |
| 1119 | if (!list) |
| 1120 | return NULL; |
| 1121 | |
| 1122 | ALL_PSPACES (ps) |
| 1123 | { |
| 1124 | PyObject *item = pspace_to_pspace_object (ps); |
| 1125 | |
| 1126 | if (!item || PyList_Append (list, item) == -1) |
| 1127 | { |
| 1128 | Py_DECREF (list); |
| 1129 | return NULL; |
| 1130 | } |
| 1131 | } |
| 1132 | |
| 1133 | return list; |
| 1134 | } |
| 1135 | |
| 1136 | \f |
| 1137 | |
| 1138 | /* The "current" objfile. This is set when gdb detects that a new |
| 1139 | objfile has been loaded. It is only set for the duration of a call to |
| 1140 | source_python_script_for_objfile; it is NULL at other times. */ |
| 1141 | static struct objfile *gdbpy_current_objfile; |
| 1142 | |
| 1143 | /* Set the current objfile to OBJFILE and then read FILE named FILENAME |
| 1144 | as Python code. This does not throw any errors. If an exception |
| 1145 | occurs python will print the traceback and clear the error indicator. */ |
| 1146 | |
| 1147 | void |
| 1148 | source_python_script_for_objfile (struct objfile *objfile, FILE *file, |
| 1149 | const char *filename) |
| 1150 | { |
| 1151 | struct cleanup *cleanups; |
| 1152 | |
| 1153 | cleanups = ensure_python_env (get_objfile_arch (objfile), current_language); |
| 1154 | gdbpy_current_objfile = objfile; |
| 1155 | |
| 1156 | python_run_simple_file (file, filename); |
| 1157 | |
| 1158 | do_cleanups (cleanups); |
| 1159 | gdbpy_current_objfile = NULL; |
| 1160 | } |
| 1161 | |
| 1162 | /* Return the current Objfile, or None if there isn't one. */ |
| 1163 | |
| 1164 | static PyObject * |
| 1165 | gdbpy_get_current_objfile (PyObject *unused1, PyObject *unused2) |
| 1166 | { |
| 1167 | PyObject *result; |
| 1168 | |
| 1169 | if (! gdbpy_current_objfile) |
| 1170 | Py_RETURN_NONE; |
| 1171 | |
| 1172 | result = objfile_to_objfile_object (gdbpy_current_objfile); |
| 1173 | if (result) |
| 1174 | Py_INCREF (result); |
| 1175 | return result; |
| 1176 | } |
| 1177 | |
| 1178 | /* Return a sequence holding all the Objfiles. */ |
| 1179 | |
| 1180 | static PyObject * |
| 1181 | gdbpy_objfiles (PyObject *unused1, PyObject *unused2) |
| 1182 | { |
| 1183 | struct objfile *objf; |
| 1184 | PyObject *list; |
| 1185 | |
| 1186 | list = PyList_New (0); |
| 1187 | if (!list) |
| 1188 | return NULL; |
| 1189 | |
| 1190 | ALL_OBJFILES (objf) |
| 1191 | { |
| 1192 | PyObject *item = objfile_to_objfile_object (objf); |
| 1193 | |
| 1194 | if (!item || PyList_Append (list, item) == -1) |
| 1195 | { |
| 1196 | Py_DECREF (list); |
| 1197 | return NULL; |
| 1198 | } |
| 1199 | } |
| 1200 | |
| 1201 | return list; |
| 1202 | } |
| 1203 | |
| 1204 | /* Compute the list of active type printers and return it. The result |
| 1205 | of this function can be passed to apply_type_printers, and should |
| 1206 | be freed by free_type_printers. */ |
| 1207 | |
| 1208 | void * |
| 1209 | start_type_printers (void) |
| 1210 | { |
| 1211 | struct cleanup *cleanups; |
| 1212 | PyObject *type_module, *func, *result_obj = NULL; |
| 1213 | |
| 1214 | cleanups = ensure_python_env (get_current_arch (), current_language); |
| 1215 | |
| 1216 | type_module = PyImport_ImportModule ("gdb.types"); |
| 1217 | if (type_module == NULL) |
| 1218 | { |
| 1219 | gdbpy_print_stack (); |
| 1220 | goto done; |
| 1221 | } |
| 1222 | make_cleanup_py_decref (type_module); |
| 1223 | |
| 1224 | func = PyObject_GetAttrString (type_module, "get_type_recognizers"); |
| 1225 | if (func == NULL) |
| 1226 | { |
| 1227 | gdbpy_print_stack (); |
| 1228 | goto done; |
| 1229 | } |
| 1230 | make_cleanup_py_decref (func); |
| 1231 | |
| 1232 | result_obj = PyObject_CallFunctionObjArgs (func, (char *) NULL); |
| 1233 | if (result_obj == NULL) |
| 1234 | gdbpy_print_stack (); |
| 1235 | |
| 1236 | done: |
| 1237 | do_cleanups (cleanups); |
| 1238 | return result_obj; |
| 1239 | } |
| 1240 | |
| 1241 | /* If TYPE is recognized by some type printer, return a newly |
| 1242 | allocated string holding the type's replacement name. The caller |
| 1243 | is responsible for freeing the string. Otherwise, return NULL. |
| 1244 | |
| 1245 | This function has a bit of a funny name, since it actually applies |
| 1246 | recognizers, but this seemed clearer given the start_type_printers |
| 1247 | and free_type_printers functions. */ |
| 1248 | |
| 1249 | char * |
| 1250 | apply_type_printers (void *printers, struct type *type) |
| 1251 | { |
| 1252 | struct cleanup *cleanups; |
| 1253 | PyObject *type_obj, *type_module, *func, *result_obj; |
| 1254 | PyObject *printers_obj = printers; |
| 1255 | char *result = NULL; |
| 1256 | |
| 1257 | if (printers_obj == NULL) |
| 1258 | return NULL; |
| 1259 | |
| 1260 | cleanups = ensure_python_env (get_current_arch (), current_language); |
| 1261 | |
| 1262 | type_obj = type_to_type_object (type); |
| 1263 | if (type_obj == NULL) |
| 1264 | { |
| 1265 | gdbpy_print_stack (); |
| 1266 | goto done; |
| 1267 | } |
| 1268 | make_cleanup_py_decref (type_obj); |
| 1269 | |
| 1270 | type_module = PyImport_ImportModule ("gdb.types"); |
| 1271 | if (type_module == NULL) |
| 1272 | { |
| 1273 | gdbpy_print_stack (); |
| 1274 | goto done; |
| 1275 | } |
| 1276 | make_cleanup_py_decref (type_module); |
| 1277 | |
| 1278 | func = PyObject_GetAttrString (type_module, "apply_type_recognizers"); |
| 1279 | if (func == NULL) |
| 1280 | { |
| 1281 | gdbpy_print_stack (); |
| 1282 | goto done; |
| 1283 | } |
| 1284 | make_cleanup_py_decref (func); |
| 1285 | |
| 1286 | result_obj = PyObject_CallFunctionObjArgs (func, printers_obj, |
| 1287 | type_obj, (char *) NULL); |
| 1288 | if (result_obj == NULL) |
| 1289 | { |
| 1290 | gdbpy_print_stack (); |
| 1291 | goto done; |
| 1292 | } |
| 1293 | make_cleanup_py_decref (result_obj); |
| 1294 | |
| 1295 | if (result_obj != Py_None) |
| 1296 | { |
| 1297 | result = python_string_to_host_string (result_obj); |
| 1298 | if (result == NULL) |
| 1299 | gdbpy_print_stack (); |
| 1300 | } |
| 1301 | |
| 1302 | done: |
| 1303 | do_cleanups (cleanups); |
| 1304 | return result; |
| 1305 | } |
| 1306 | |
| 1307 | /* Free the result of start_type_printers. */ |
| 1308 | |
| 1309 | void |
| 1310 | free_type_printers (void *arg) |
| 1311 | { |
| 1312 | struct cleanup *cleanups; |
| 1313 | PyObject *printers = arg; |
| 1314 | |
| 1315 | if (printers == NULL) |
| 1316 | return; |
| 1317 | |
| 1318 | cleanups = ensure_python_env (get_current_arch (), current_language); |
| 1319 | Py_DECREF (printers); |
| 1320 | do_cleanups (cleanups); |
| 1321 | } |
| 1322 | |
| 1323 | #else /* HAVE_PYTHON */ |
| 1324 | |
| 1325 | /* Dummy implementation of the gdb "python-interactive" and "python" |
| 1326 | command. */ |
| 1327 | |
| 1328 | static void |
| 1329 | python_interactive_command (char *arg, int from_tty) |
| 1330 | { |
| 1331 | arg = skip_spaces (arg); |
| 1332 | if (arg && *arg) |
| 1333 | error (_("Python scripting is not supported in this copy of GDB.")); |
| 1334 | else |
| 1335 | { |
| 1336 | struct command_line *l = get_command_line (python_control, ""); |
| 1337 | struct cleanup *cleanups = make_cleanup_free_command_lines (&l); |
| 1338 | |
| 1339 | execute_control_command_untraced (l); |
| 1340 | do_cleanups (cleanups); |
| 1341 | } |
| 1342 | } |
| 1343 | |
| 1344 | static void |
| 1345 | python_command (char *arg, int from_tty) |
| 1346 | { |
| 1347 | python_interactive_command (arg, from_tty); |
| 1348 | } |
| 1349 | |
| 1350 | void |
| 1351 | eval_python_from_control_command (struct command_line *cmd) |
| 1352 | { |
| 1353 | error (_("Python scripting is not supported in this copy of GDB.")); |
| 1354 | } |
| 1355 | |
| 1356 | void |
| 1357 | source_python_script (FILE *file, const char *filename) |
| 1358 | { |
| 1359 | throw_error (UNSUPPORTED_ERROR, |
| 1360 | _("Python scripting is not supported in this copy of GDB.")); |
| 1361 | } |
| 1362 | |
| 1363 | int |
| 1364 | gdbpy_should_stop (struct breakpoint_object *bp_obj) |
| 1365 | { |
| 1366 | internal_error (__FILE__, __LINE__, |
| 1367 | _("gdbpy_should_stop called when Python scripting is " \ |
| 1368 | "not supported.")); |
| 1369 | } |
| 1370 | |
| 1371 | int |
| 1372 | gdbpy_breakpoint_has_py_cond (struct breakpoint_object *bp_obj) |
| 1373 | { |
| 1374 | internal_error (__FILE__, __LINE__, |
| 1375 | _("gdbpy_breakpoint_has_py_cond called when Python " \ |
| 1376 | "scripting is not supported.")); |
| 1377 | } |
| 1378 | |
| 1379 | void * |
| 1380 | start_type_printers (void) |
| 1381 | { |
| 1382 | return NULL; |
| 1383 | } |
| 1384 | |
| 1385 | char * |
| 1386 | apply_type_printers (void *ignore, struct type *type) |
| 1387 | { |
| 1388 | return NULL; |
| 1389 | } |
| 1390 | |
| 1391 | void |
| 1392 | free_type_printers (void *arg) |
| 1393 | { |
| 1394 | } |
| 1395 | |
| 1396 | #endif /* HAVE_PYTHON */ |
| 1397 | |
| 1398 | \f |
| 1399 | |
| 1400 | /* Lists for 'set python' commands. */ |
| 1401 | |
| 1402 | static struct cmd_list_element *user_set_python_list; |
| 1403 | static struct cmd_list_element *user_show_python_list; |
| 1404 | |
| 1405 | /* Function for use by 'set python' prefix command. */ |
| 1406 | |
| 1407 | static void |
| 1408 | user_set_python (char *args, int from_tty) |
| 1409 | { |
| 1410 | help_list (user_set_python_list, "set python ", all_commands, |
| 1411 | gdb_stdout); |
| 1412 | } |
| 1413 | |
| 1414 | /* Function for use by 'show python' prefix command. */ |
| 1415 | |
| 1416 | static void |
| 1417 | user_show_python (char *args, int from_tty) |
| 1418 | { |
| 1419 | cmd_show_list (user_show_python_list, from_tty, ""); |
| 1420 | } |
| 1421 | |
| 1422 | /* Initialize the Python code. */ |
| 1423 | |
| 1424 | #ifdef HAVE_PYTHON |
| 1425 | |
| 1426 | /* This is installed as a final cleanup and cleans up the |
| 1427 | interpreter. This lets Python's 'atexit' work. */ |
| 1428 | |
| 1429 | static void |
| 1430 | finalize_python (void *ignore) |
| 1431 | { |
| 1432 | /* We don't use ensure_python_env here because if we ever ran the |
| 1433 | cleanup, gdb would crash -- because the cleanup calls into the |
| 1434 | Python interpreter, which we are about to destroy. It seems |
| 1435 | clearer to make the needed calls explicitly here than to create a |
| 1436 | cleanup and then mysteriously discard it. */ |
| 1437 | (void) PyGILState_Ensure (); |
| 1438 | python_gdbarch = target_gdbarch (); |
| 1439 | python_language = current_language; |
| 1440 | |
| 1441 | Py_Finalize (); |
| 1442 | } |
| 1443 | #endif |
| 1444 | |
| 1445 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
| 1446 | extern initialize_file_ftype _initialize_python; |
| 1447 | |
| 1448 | void |
| 1449 | _initialize_python (void) |
| 1450 | { |
| 1451 | char *progname; |
| 1452 | #ifdef IS_PY3K |
| 1453 | int i; |
| 1454 | size_t progsize, count; |
| 1455 | char *oldloc; |
| 1456 | wchar_t *progname_copy; |
| 1457 | #endif |
| 1458 | |
| 1459 | add_com ("python-interactive", class_obscure, |
| 1460 | python_interactive_command, |
| 1461 | #ifdef HAVE_PYTHON |
| 1462 | _("\ |
| 1463 | Start an interactive Python prompt.\n\ |
| 1464 | \n\ |
| 1465 | To return to GDB, type the EOF character (e.g., Ctrl-D on an empty\n\ |
| 1466 | prompt).\n\ |
| 1467 | \n\ |
| 1468 | Alternatively, a single-line Python command can be given as an\n\ |
| 1469 | argument, and if the command is an expression, the result will be\n\ |
| 1470 | printed. For example:\n\ |
| 1471 | \n\ |
| 1472 | (gdb) python-interactive 2 + 3\n\ |
| 1473 | 5\n\ |
| 1474 | ") |
| 1475 | #else /* HAVE_PYTHON */ |
| 1476 | _("\ |
| 1477 | Start a Python interactive prompt.\n\ |
| 1478 | \n\ |
| 1479 | Python scripting is not supported in this copy of GDB.\n\ |
| 1480 | This command is only a placeholder.") |
| 1481 | #endif /* HAVE_PYTHON */ |
| 1482 | ); |
| 1483 | add_com_alias ("pi", "python-interactive", class_obscure, 1); |
| 1484 | |
| 1485 | add_com ("python", class_obscure, python_command, |
| 1486 | #ifdef HAVE_PYTHON |
| 1487 | _("\ |
| 1488 | Evaluate a Python command.\n\ |
| 1489 | \n\ |
| 1490 | The command can be given as an argument, for instance:\n\ |
| 1491 | \n\ |
| 1492 | python print 23\n\ |
| 1493 | \n\ |
| 1494 | If no argument is given, the following lines are read and used\n\ |
| 1495 | as the Python commands. Type a line containing \"end\" to indicate\n\ |
| 1496 | the end of the command.") |
| 1497 | #else /* HAVE_PYTHON */ |
| 1498 | _("\ |
| 1499 | Evaluate a Python command.\n\ |
| 1500 | \n\ |
| 1501 | Python scripting is not supported in this copy of GDB.\n\ |
| 1502 | This command is only a placeholder.") |
| 1503 | #endif /* HAVE_PYTHON */ |
| 1504 | ); |
| 1505 | add_com_alias ("py", "python", class_obscure, 1); |
| 1506 | |
| 1507 | /* Add set/show python print-stack. */ |
| 1508 | add_prefix_cmd ("python", no_class, user_show_python, |
| 1509 | _("Prefix command for python preference settings."), |
| 1510 | &user_show_python_list, "show python ", 0, |
| 1511 | &showlist); |
| 1512 | |
| 1513 | add_prefix_cmd ("python", no_class, user_set_python, |
| 1514 | _("Prefix command for python preference settings."), |
| 1515 | &user_set_python_list, "set python ", 0, |
| 1516 | &setlist); |
| 1517 | |
| 1518 | add_setshow_enum_cmd ("print-stack", no_class, python_excp_enums, |
| 1519 | &gdbpy_should_print_stack, _("\ |
| 1520 | Set mode for Python stack dump on error."), _("\ |
| 1521 | Show the mode of Python stack printing on error."), _("\ |
| 1522 | none == no stack or message will be printed.\n\ |
| 1523 | full == a message and a stack will be printed.\n\ |
| 1524 | message == an error message without a stack will be printed."), |
| 1525 | NULL, NULL, |
| 1526 | &user_set_python_list, |
| 1527 | &user_show_python_list); |
| 1528 | |
| 1529 | #ifdef HAVE_PYTHON |
| 1530 | #ifdef WITH_PYTHON_PATH |
| 1531 | /* Work around problem where python gets confused about where it is, |
| 1532 | and then can't find its libraries, etc. |
| 1533 | NOTE: Python assumes the following layout: |
| 1534 | /foo/bin/python |
| 1535 | /foo/lib/pythonX.Y/... |
| 1536 | This must be done before calling Py_Initialize. */ |
| 1537 | progname = concat (ldirname (python_libdir), SLASH_STRING, "bin", |
| 1538 | SLASH_STRING, "python", NULL); |
| 1539 | #ifdef IS_PY3K |
| 1540 | oldloc = setlocale (LC_ALL, NULL); |
| 1541 | setlocale (LC_ALL, ""); |
| 1542 | progsize = strlen (progname); |
| 1543 | if (progsize == (size_t) -1) |
| 1544 | { |
| 1545 | fprintf (stderr, "Could not convert python path to string\n"); |
| 1546 | return; |
| 1547 | } |
| 1548 | progname_copy = PyMem_Malloc ((progsize + 1) * sizeof (wchar_t)); |
| 1549 | if (!progname_copy) |
| 1550 | { |
| 1551 | fprintf (stderr, "out of memory\n"); |
| 1552 | return; |
| 1553 | } |
| 1554 | count = mbstowcs (progname_copy, progname, progsize + 1); |
| 1555 | if (count == (size_t) -1) |
| 1556 | { |
| 1557 | fprintf (stderr, "Could not convert python path to string\n"); |
| 1558 | return; |
| 1559 | } |
| 1560 | setlocale (LC_ALL, oldloc); |
| 1561 | |
| 1562 | /* Note that Py_SetProgramName expects the string it is passed to |
| 1563 | remain alive for the duration of the program's execution, so |
| 1564 | it is not freed after this call. */ |
| 1565 | Py_SetProgramName (progname_copy); |
| 1566 | #else |
| 1567 | Py_SetProgramName (progname); |
| 1568 | #endif |
| 1569 | #endif |
| 1570 | |
| 1571 | Py_Initialize (); |
| 1572 | PyEval_InitThreads (); |
| 1573 | |
| 1574 | #ifdef IS_PY3K |
| 1575 | gdb_module = PyModule_Create (&GdbModuleDef); |
| 1576 | /* Add _gdb module to the list of known built-in modules. */ |
| 1577 | _PyImport_FixupBuiltin (gdb_module, "_gdb"); |
| 1578 | #else |
| 1579 | gdb_module = Py_InitModule ("_gdb", GdbMethods); |
| 1580 | #endif |
| 1581 | |
| 1582 | /* The casts to (char*) are for python 2.4. */ |
| 1583 | PyModule_AddStringConstant (gdb_module, "VERSION", (char*) version); |
| 1584 | PyModule_AddStringConstant (gdb_module, "HOST_CONFIG", (char*) host_name); |
| 1585 | PyModule_AddStringConstant (gdb_module, "TARGET_CONFIG", |
| 1586 | (char*) target_name); |
| 1587 | |
| 1588 | /* Add stream constants. */ |
| 1589 | PyModule_AddIntConstant (gdb_module, "STDOUT", 0); |
| 1590 | PyModule_AddIntConstant (gdb_module, "STDERR", 1); |
| 1591 | PyModule_AddIntConstant (gdb_module, "STDLOG", 2); |
| 1592 | |
| 1593 | gdbpy_gdb_error = PyErr_NewException ("gdb.error", PyExc_RuntimeError, NULL); |
| 1594 | PyModule_AddObject (gdb_module, "error", gdbpy_gdb_error); |
| 1595 | |
| 1596 | gdbpy_gdb_memory_error = PyErr_NewException ("gdb.MemoryError", |
| 1597 | gdbpy_gdb_error, NULL); |
| 1598 | PyModule_AddObject (gdb_module, "MemoryError", gdbpy_gdb_memory_error); |
| 1599 | |
| 1600 | gdbpy_gdberror_exc = PyErr_NewException ("gdb.GdbError", NULL, NULL); |
| 1601 | PyModule_AddObject (gdb_module, "GdbError", gdbpy_gdberror_exc); |
| 1602 | |
| 1603 | gdbpy_initialize_gdb_readline (); |
| 1604 | gdbpy_initialize_auto_load (); |
| 1605 | gdbpy_initialize_values (); |
| 1606 | gdbpy_initialize_frames (); |
| 1607 | gdbpy_initialize_commands (); |
| 1608 | gdbpy_initialize_symbols (); |
| 1609 | gdbpy_initialize_symtabs (); |
| 1610 | gdbpy_initialize_blocks (); |
| 1611 | gdbpy_initialize_functions (); |
| 1612 | gdbpy_initialize_parameters (); |
| 1613 | gdbpy_initialize_types (); |
| 1614 | gdbpy_initialize_pspace (); |
| 1615 | gdbpy_initialize_objfile (); |
| 1616 | gdbpy_initialize_breakpoints (); |
| 1617 | gdbpy_initialize_finishbreakpoints (); |
| 1618 | gdbpy_initialize_lazy_string (); |
| 1619 | gdbpy_initialize_thread (); |
| 1620 | gdbpy_initialize_inferior (); |
| 1621 | gdbpy_initialize_events (); |
| 1622 | |
| 1623 | gdbpy_initialize_eventregistry (); |
| 1624 | gdbpy_initialize_py_events (); |
| 1625 | gdbpy_initialize_event (); |
| 1626 | gdbpy_initialize_stop_event (); |
| 1627 | gdbpy_initialize_signal_event (); |
| 1628 | gdbpy_initialize_breakpoint_event (); |
| 1629 | gdbpy_initialize_continue_event (); |
| 1630 | gdbpy_initialize_exited_event (); |
| 1631 | gdbpy_initialize_thread_event (); |
| 1632 | gdbpy_initialize_new_objfile_event () ; |
| 1633 | gdbpy_initialize_arch (); |
| 1634 | |
| 1635 | observer_attach_before_prompt (before_prompt_hook); |
| 1636 | |
| 1637 | gdbpy_to_string_cst = PyString_FromString ("to_string"); |
| 1638 | gdbpy_children_cst = PyString_FromString ("children"); |
| 1639 | gdbpy_display_hint_cst = PyString_FromString ("display_hint"); |
| 1640 | gdbpy_doc_cst = PyString_FromString ("__doc__"); |
| 1641 | gdbpy_enabled_cst = PyString_FromString ("enabled"); |
| 1642 | gdbpy_value_cst = PyString_FromString ("value"); |
| 1643 | |
| 1644 | /* Release the GIL while gdb runs. */ |
| 1645 | PyThreadState_Swap (NULL); |
| 1646 | PyEval_ReleaseLock (); |
| 1647 | |
| 1648 | make_final_cleanup (finalize_python, NULL); |
| 1649 | #endif /* HAVE_PYTHON */ |
| 1650 | } |
| 1651 | |
| 1652 | #ifdef HAVE_PYTHON |
| 1653 | |
| 1654 | /* Perform the remaining python initializations. |
| 1655 | These must be done after GDB is at least mostly initialized. |
| 1656 | E.g., The "info pretty-printer" command needs the "info" prefix |
| 1657 | command installed. */ |
| 1658 | |
| 1659 | void |
| 1660 | finish_python_initialization (void) |
| 1661 | { |
| 1662 | PyObject *m; |
| 1663 | char *gdb_pythondir; |
| 1664 | PyObject *sys_path; |
| 1665 | struct cleanup *cleanup; |
| 1666 | |
| 1667 | cleanup = ensure_python_env (get_current_arch (), current_language); |
| 1668 | |
| 1669 | /* Add the initial data-directory to sys.path. */ |
| 1670 | |
| 1671 | gdb_pythondir = concat (gdb_datadir, SLASH_STRING, "python", NULL); |
| 1672 | make_cleanup (xfree, gdb_pythondir); |
| 1673 | |
| 1674 | sys_path = PySys_GetObject ("path"); |
| 1675 | |
| 1676 | /* If sys.path is not defined yet, define it first. */ |
| 1677 | if (!(sys_path && PyList_Check (sys_path))) |
| 1678 | { |
| 1679 | #ifdef IS_PY3K |
| 1680 | PySys_SetPath (L""); |
| 1681 | #else |
| 1682 | PySys_SetPath (""); |
| 1683 | #endif |
| 1684 | sys_path = PySys_GetObject ("path"); |
| 1685 | } |
| 1686 | if (sys_path && PyList_Check (sys_path)) |
| 1687 | { |
| 1688 | PyObject *pythondir; |
| 1689 | int err; |
| 1690 | |
| 1691 | pythondir = PyString_FromString (gdb_pythondir); |
| 1692 | if (pythondir == NULL) |
| 1693 | goto fail; |
| 1694 | |
| 1695 | err = PyList_Insert (sys_path, 0, pythondir); |
| 1696 | if (err) |
| 1697 | goto fail; |
| 1698 | |
| 1699 | Py_DECREF (pythondir); |
| 1700 | } |
| 1701 | else |
| 1702 | goto fail; |
| 1703 | |
| 1704 | /* Import the gdb module to finish the initialization, and |
| 1705 | add it to __main__ for convenience. */ |
| 1706 | m = PyImport_AddModule ("__main__"); |
| 1707 | if (m == NULL) |
| 1708 | goto fail; |
| 1709 | |
| 1710 | gdb_python_module = PyImport_ImportModule ("gdb"); |
| 1711 | if (gdb_python_module == NULL) |
| 1712 | { |
| 1713 | gdbpy_print_stack (); |
| 1714 | /* This is passed in one call to warning so that blank lines aren't |
| 1715 | inserted between each line of text. */ |
| 1716 | warning (_("\n" |
| 1717 | "Could not load the Python gdb module from `%s'.\n" |
| 1718 | "Limited Python support is available from the _gdb module.\n" |
| 1719 | "Suggest passing --data-directory=/path/to/gdb/data-directory.\n"), |
| 1720 | gdb_pythondir); |
| 1721 | do_cleanups (cleanup); |
| 1722 | return; |
| 1723 | } |
| 1724 | |
| 1725 | if (PyModule_AddObject (m, "gdb", gdb_python_module)) |
| 1726 | goto fail; |
| 1727 | |
| 1728 | /* Keep the reference to gdb_python_module since it is in a global |
| 1729 | variable. */ |
| 1730 | |
| 1731 | do_cleanups (cleanup); |
| 1732 | return; |
| 1733 | |
| 1734 | fail: |
| 1735 | gdbpy_print_stack (); |
| 1736 | warning (_("internal error: Unhandled Python exception")); |
| 1737 | do_cleanups (cleanup); |
| 1738 | } |
| 1739 | |
| 1740 | #endif /* HAVE_PYTHON */ |
| 1741 | |
| 1742 | \f |
| 1743 | |
| 1744 | #ifdef HAVE_PYTHON |
| 1745 | |
| 1746 | static PyMethodDef GdbMethods[] = |
| 1747 | { |
| 1748 | { "history", gdbpy_history, METH_VARARGS, |
| 1749 | "Get a value from history" }, |
| 1750 | { "execute", (PyCFunction) execute_gdb_command, METH_VARARGS | METH_KEYWORDS, |
| 1751 | "Execute a gdb command" }, |
| 1752 | { "parameter", gdbpy_parameter, METH_VARARGS, |
| 1753 | "Return a gdb parameter's value" }, |
| 1754 | |
| 1755 | { "breakpoints", gdbpy_breakpoints, METH_NOARGS, |
| 1756 | "Return a tuple of all breakpoint objects" }, |
| 1757 | |
| 1758 | { "default_visualizer", gdbpy_default_visualizer, METH_VARARGS, |
| 1759 | "Find the default visualizer for a Value." }, |
| 1760 | |
| 1761 | { "current_progspace", gdbpy_get_current_progspace, METH_NOARGS, |
| 1762 | "Return the current Progspace." }, |
| 1763 | { "progspaces", gdbpy_progspaces, METH_NOARGS, |
| 1764 | "Return a sequence of all progspaces." }, |
| 1765 | |
| 1766 | { "current_objfile", gdbpy_get_current_objfile, METH_NOARGS, |
| 1767 | "Return the current Objfile being loaded, or None." }, |
| 1768 | { "objfiles", gdbpy_objfiles, METH_NOARGS, |
| 1769 | "Return a sequence of all loaded objfiles." }, |
| 1770 | |
| 1771 | { "newest_frame", gdbpy_newest_frame, METH_NOARGS, |
| 1772 | "newest_frame () -> gdb.Frame.\n\ |
| 1773 | Return the newest frame object." }, |
| 1774 | { "selected_frame", gdbpy_selected_frame, METH_NOARGS, |
| 1775 | "selected_frame () -> gdb.Frame.\n\ |
| 1776 | Return the selected frame object." }, |
| 1777 | { "frame_stop_reason_string", gdbpy_frame_stop_reason_string, METH_VARARGS, |
| 1778 | "stop_reason_string (Integer) -> String.\n\ |
| 1779 | Return a string explaining unwind stop reason." }, |
| 1780 | |
| 1781 | { "lookup_type", (PyCFunction) gdbpy_lookup_type, |
| 1782 | METH_VARARGS | METH_KEYWORDS, |
| 1783 | "lookup_type (name [, block]) -> type\n\ |
| 1784 | Return a Type corresponding to the given name." }, |
| 1785 | { "lookup_symbol", (PyCFunction) gdbpy_lookup_symbol, |
| 1786 | METH_VARARGS | METH_KEYWORDS, |
| 1787 | "lookup_symbol (name [, block] [, domain]) -> (symbol, is_field_of_this)\n\ |
| 1788 | Return a tuple with the symbol corresponding to the given name (or None) and\n\ |
| 1789 | a boolean indicating if name is a field of the current implied argument\n\ |
| 1790 | `this' (when the current language is object-oriented)." }, |
| 1791 | { "lookup_global_symbol", (PyCFunction) gdbpy_lookup_global_symbol, |
| 1792 | METH_VARARGS | METH_KEYWORDS, |
| 1793 | "lookup_global_symbol (name [, domain]) -> symbol\n\ |
| 1794 | Return the symbol corresponding to the given name (or None)." }, |
| 1795 | { "block_for_pc", gdbpy_block_for_pc, METH_VARARGS, |
| 1796 | "Return the block containing the given pc value, or None." }, |
| 1797 | { "solib_name", gdbpy_solib_name, METH_VARARGS, |
| 1798 | "solib_name (Long) -> String.\n\ |
| 1799 | Return the name of the shared library holding a given address, or None." }, |
| 1800 | { "decode_line", gdbpy_decode_line, METH_VARARGS, |
| 1801 | "decode_line (String) -> Tuple. Decode a string argument the way\n\ |
| 1802 | that 'break' or 'edit' does. Return a tuple containing two elements.\n\ |
| 1803 | The first element contains any unparsed portion of the String parameter\n\ |
| 1804 | (or None if the string was fully parsed). The second element contains\n\ |
| 1805 | a tuple that contains all the locations that match, represented as\n\ |
| 1806 | gdb.Symtab_and_line objects (or None)."}, |
| 1807 | { "parse_and_eval", gdbpy_parse_and_eval, METH_VARARGS, |
| 1808 | "parse_and_eval (String) -> Value.\n\ |
| 1809 | Parse String as an expression, evaluate it, and return the result as a Value." |
| 1810 | }, |
| 1811 | { "find_pc_line", gdbpy_find_pc_line, METH_VARARGS, |
| 1812 | "find_pc_line (pc) -> Symtab_and_line.\n\ |
| 1813 | Return the gdb.Symtab_and_line object corresponding to the pc value." }, |
| 1814 | |
| 1815 | { "post_event", gdbpy_post_event, METH_VARARGS, |
| 1816 | "Post an event into gdb's event loop." }, |
| 1817 | |
| 1818 | { "target_charset", gdbpy_target_charset, METH_NOARGS, |
| 1819 | "target_charset () -> string.\n\ |
| 1820 | Return the name of the current target charset." }, |
| 1821 | { "target_wide_charset", gdbpy_target_wide_charset, METH_NOARGS, |
| 1822 | "target_wide_charset () -> string.\n\ |
| 1823 | Return the name of the current target wide charset." }, |
| 1824 | |
| 1825 | { "string_to_argv", gdbpy_string_to_argv, METH_VARARGS, |
| 1826 | "string_to_argv (String) -> Array.\n\ |
| 1827 | Parse String and return an argv-like array.\n\ |
| 1828 | Arguments are separate by spaces and may be quoted." |
| 1829 | }, |
| 1830 | { "write", (PyCFunction)gdbpy_write, METH_VARARGS | METH_KEYWORDS, |
| 1831 | "Write a string using gdb's filtered stream." }, |
| 1832 | { "flush", (PyCFunction)gdbpy_flush, METH_VARARGS | METH_KEYWORDS, |
| 1833 | "Flush gdb's filtered stdout stream." }, |
| 1834 | { "selected_thread", gdbpy_selected_thread, METH_NOARGS, |
| 1835 | "selected_thread () -> gdb.InferiorThread.\n\ |
| 1836 | Return the selected thread object." }, |
| 1837 | { "selected_inferior", gdbpy_selected_inferior, METH_NOARGS, |
| 1838 | "selected_inferior () -> gdb.Inferior.\n\ |
| 1839 | Return the selected inferior object." }, |
| 1840 | { "inferiors", gdbpy_inferiors, METH_NOARGS, |
| 1841 | "inferiors () -> (gdb.Inferior, ...).\n\ |
| 1842 | Return a tuple containing all inferiors." }, |
| 1843 | {NULL, NULL, 0, NULL} |
| 1844 | }; |
| 1845 | |
| 1846 | #ifdef IS_PY3K |
| 1847 | static struct PyModuleDef GdbModuleDef = |
| 1848 | { |
| 1849 | PyModuleDef_HEAD_INIT, |
| 1850 | "_gdb", |
| 1851 | NULL, |
| 1852 | -1, |
| 1853 | GdbMethods, |
| 1854 | NULL, |
| 1855 | NULL, |
| 1856 | NULL, |
| 1857 | NULL |
| 1858 | }; |
| 1859 | #endif |
| 1860 | #endif /* HAVE_PYTHON */ |