gdb/python/python-internal.h

   1 /* Gdb/Python header for private use by Python module.
   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 #ifndef GDB_PYTHON_INTERNAL_H
  21 #define GDB_PYTHON_INTERNAL_H
  22
  23 #include "extension.h"
  24 #include "extension-priv.h"
  25
  26 /* These WITH_* macros are defined by the CPython API checker that
  27    comes with the Python plugin for GCC.  See:
  28    https://gcc-python-plugin.readthedocs.org/en/latest/cpychecker.html
  29    The checker defines a WITH_ macro for each attribute it
  30    exposes.  */
  31
  32 #ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE
  33 #define CPYCHECKER_RETURNS_BORROWED_REF                 \
  34   __attribute__ ((cpychecker_returns_borrowed_ref))
  35 #else
  36 #define CPYCHECKER_RETURNS_BORROWED_REF
  37 #endif
  38
  39 #ifdef WITH_CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF_ATTRIBUTE
  40 #define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(ARG)         \
  41   __attribute__ ((cpychecker_type_object_for_typedef (ARG)))
  42 #else
  43 #define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(ARG)
  44 #endif
  45
  46 #ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE
  47 #define CPYCHECKER_STEALS_REFERENCE_TO_ARG(n) \
  48    __attribute__ ((cpychecker_steals_reference_to_arg (n)))
  49 #else
  50 #define CPYCHECKER_STEALS_REFERENCE_TO_ARG(n)
  51 #endif
  52
  53 #ifdef WITH_CPYCHECKER_SETS_EXCEPTION_ATTRIBUTE
  54 #define CPYCHECKER_SETS_EXCEPTION __attribute__ ((cpychecker_sets_exception))
  55 #else
  56 #define CPYCHECKER_SETS_EXCEPTION
  57 #endif
  58
  59 #ifdef WITH_CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION_ATTRIBUTE
  60 #define CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION               \
  61   __attribute__ ((cpychecker_negative_result_sets_exception))
  62 #else
  63 #define CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION
  64 #endif
  65
  66 /* Python 2.4 doesn't include stdint.h soon enough to get {u,}intptr_t
  67    needed by pyport.h.  */
  68 /* /usr/include/features.h on linux systems will define _POSIX_C_SOURCE
  69    if it sees _GNU_SOURCE (which config.h will define).
  70    pyconfig.h defines _POSIX_C_SOURCE to a different value than
  71    /usr/include/features.h does causing compilation to fail.
  72    To work around this, undef _POSIX_C_SOURCE before we include Python.h.
  73
  74    Same problem with _XOPEN_SOURCE.  */
  75 #undef _POSIX_C_SOURCE
  76 #undef _XOPEN_SOURCE
  77
  78 /* On sparc-solaris, /usr/include/sys/feature_tests.h defines
  79    _FILE_OFFSET_BITS, which pyconfig.h also defines.  Same work
  80    around technique as above.  */
  81 #undef _FILE_OFFSET_BITS
  82
  83 /* A kludge to avoid redefinition of snprintf on Windows by pyerrors.h.  */
  84 #if defined(_WIN32) && defined(HAVE_DECL_SNPRINTF)
  85 #define HAVE_SNPRINTF 1
  86 #endif
  87
  88 /* Request clean size types from Python.  */
  89 #define PY_SSIZE_T_CLEAN
  90
  91 /* Include the Python header files using angle brackets rather than
  92    double quotes.  On case-insensitive filesystems, this prevents us
  93    from including our python/python.h header file.  */
  94 #include <Python.h>
  95 #include <frameobject.h>
  96
  97 #if PY_MAJOR_VERSION >= 3
  98 #define IS_PY3K 1
  99 #endif
 100
 101 #ifdef IS_PY3K
 102 #define Py_TPFLAGS_HAVE_ITER 0
 103 #define Py_TPFLAGS_CHECKTYPES 0
 104
 105 #define PyInt_Check PyLong_Check
 106 #define PyInt_FromLong PyLong_FromLong
 107 #define PyInt_AsLong PyLong_AsLong
 108
 109 #define PyString_FromString PyUnicode_FromString
 110 #define PyString_Decode PyUnicode_Decode
 111 #define PyString_FromFormat PyUnicode_FromFormat
 112 #define PyString_Check PyUnicode_Check
 113 #endif
 114
 115 #if HAVE_LIBPYTHON2_4
 116 /* Py_ssize_t is not defined until 2.5.
 117    Logical type for Py_ssize_t is Py_intptr_t, but that fails in 64-bit
 118    compilation due to several apparent mistakes in python2.4 API, so we
 119    use 'int' instead.  */
 120 typedef int Py_ssize_t;
 121 #endif
 122
 123 #ifndef PyVarObject_HEAD_INIT
 124 /* Python 2.4 does not define PyVarObject_HEAD_INIT.  */
 125 #define PyVarObject_HEAD_INIT(type, size)       \
 126     PyObject_HEAD_INIT(type) size,
 127
 128 #endif
 129
 130 #ifndef Py_TYPE
 131 /* Python 2.4 does not define Py_TYPE.  */
 132 #define Py_TYPE(ob)             (((PyObject*)(ob))->ob_type)
 133 #endif
 134
 135 /* If Python.h does not define WITH_THREAD, then the various
 136    GIL-related functions will not be defined.  However,
 137    PyGILState_STATE will be.  */
 138 #ifndef WITH_THREAD
 139 #define PyGILState_Ensure() ((PyGILState_STATE) 0)
 140 #define PyGILState_Release(ARG) ((void)(ARG))
 141 #define PyEval_InitThreads()
 142 #define PyThreadState_Swap(ARG) ((void)(ARG))
 143 #define PyEval_ReleaseLock()
 144 #endif
 145
 146 /* Python supplies HAVE_LONG_LONG and some `long long' support when it
 147    is available.  These defines let us handle the differences more
 148    cleanly.  */
 149 #ifdef HAVE_LONG_LONG
 150
 151 #define GDB_PY_LL_ARG "L"
 152 #define GDB_PY_LLU_ARG "K"
 153 typedef PY_LONG_LONG gdb_py_longest;
 154 typedef unsigned PY_LONG_LONG gdb_py_ulongest;
 155 #define gdb_py_long_from_longest PyLong_FromLongLong
 156 #define gdb_py_long_from_ulongest PyLong_FromUnsignedLongLong
 157 #define gdb_py_long_as_ulongest PyLong_AsUnsignedLongLong
 158
 159 #else /* HAVE_LONG_LONG */
 160
 161 #define GDB_PY_LL_ARG "L"
 162 #define GDB_PY_LLU_ARG "K"
 163 typedef long gdb_py_longest;
 164 typedef unsigned long gdb_py_ulongest;
 165 #define gdb_py_long_from_longest PyLong_FromLong
 166 #define gdb_py_long_from_ulongest PyLong_FromUnsignedLong
 167 #define gdb_py_long_as_ulongest PyLong_AsUnsignedLong
 168
 169 #endif /* HAVE_LONG_LONG */
 170
 171 #if PY_VERSION_HEX < 0x03020000
 172 typedef long Py_hash_t;
 173 #endif
 174
 175 /* Python 2.6 did not wrap Py_DECREF in 'do {...} while (0)', leading
 176    to 'suggest explicit braces to avoid ambiguous ‘else’' gcc errors.
 177    Wrap it ourselves, so that callers don't need to care.  */
 178
 179 static inline void
 180 gdb_Py_DECREF (void *op) /* ARI: editCase function */
 181 {
 182   /* ... and Python 2.4 didn't cast OP to PyObject pointer on the
 183      '(op)->ob_refcnt' references within the macro.  Cast it ourselves
 184      too.  */
 185   Py_DECREF ((PyObject *) op);
 186 }
 187
 188 #undef Py_DECREF
 189 #define Py_DECREF(op) gdb_Py_DECREF (op)
 190
 191 /* The second argument to PyObject_GetAttrString was missing the 'const'
 192    qualifier in Python-2.4.  Hence, we wrap it in a function to avoid errors
 193    when compiled with -Werror.  */
 194
 195 static inline PyObject *
 196 gdb_PyObject_GetAttrString (PyObject *obj,
 197                             const char *attr) /* ARI: editCase function */
 198 {
 199   return PyObject_GetAttrString (obj, (char *) attr);
 200 }
 201
 202 #define PyObject_GetAttrString(obj, attr) gdb_PyObject_GetAttrString (obj, attr)
 203
 204 /* The second argument to PyObject_HasAttrString was also missing the 'const'
 205    qualifier in Python-2.4.  Hence, we wrap it also in a function to avoid
 206    errors when compiled with -Werror.  */
 207
 208 static inline int
 209 gdb_PyObject_HasAttrString (PyObject *obj,
 210                             const char *attr)  /* ARI: editCase function */
 211 {
 212   return PyObject_HasAttrString (obj, (char *) attr);
 213 }
 214
 215 #define PyObject_HasAttrString(obj, attr) gdb_PyObject_HasAttrString (obj, attr)
 216
 217 /* In order to be able to parse symtab_and_line_to_sal_object function
 218    a real symtab_and_line structure is needed.  */
 219 #include "symtab.h"
 220
 221 /* Also needed to parse enum var_types. */
 222 #include "command.h"
 223 #include "breakpoint.h"
 224
 225 enum gdbpy_iter_kind { iter_keys, iter_values, iter_items };
 226
 227 struct block;
 228 struct value;
 229 struct language_defn;
 230 struct program_space;
 231 struct bpstats;
 232 struct inferior;
 233
 234 extern int gdb_python_initialized;
 235
 236 extern PyObject *gdb_module;
 237 extern PyObject *gdb_python_module;
 238 extern PyTypeObject value_object_type
 239     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("value_object");
 240 extern PyTypeObject block_object_type
 241     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF("block_object");
 242 extern PyTypeObject symbol_object_type
 243     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("symbol_object");
 244 extern PyTypeObject event_object_type
 245     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
 246 extern PyTypeObject stop_event_object_type
 247     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
 248 extern PyTypeObject breakpoint_object_type
 249     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("breakpoint_object");
 250 extern PyTypeObject frame_object_type
 251     CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("frame_object");
 252
 253 typedef struct gdbpy_breakpoint_object
 254 {
 255   PyObject_HEAD
 256
 257   /* The breakpoint number according to gdb.  */
 258   int number;
 259
 260   /* The gdb breakpoint object, or NULL if the breakpoint has been
 261      deleted.  */
 262   struct breakpoint *bp;
 263
 264   /* 1 is this is a FinishBreakpoint object, 0 otherwise.  */
 265   int is_finish_bp;
 266 } gdbpy_breakpoint_object;
 267
 268 /* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
 269    exception if it is invalid.  */
 270 #define BPPY_REQUIRE_VALID(Breakpoint)                                  \
 271     do {                                                                \
 272       if ((Breakpoint)->bp == NULL)                                     \
 273         return PyErr_Format (PyExc_RuntimeError,                        \
 274                              _("Breakpoint %d is invalid."),            \
 275                              (Breakpoint)->number);                     \
 276     } while (0)
 277
 278 /* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
 279    exception if it is invalid.  This macro is for use in setter functions.  */
 280 #define BPPY_SET_REQUIRE_VALID(Breakpoint)                              \
 281     do {                                                                \
 282       if ((Breakpoint)->bp == NULL)                                     \
 283         {                                                               \
 284           PyErr_Format (PyExc_RuntimeError, _("Breakpoint %d is invalid."), \
 285                         (Breakpoint)->number);                          \
 286           return -1;                                                    \
 287         }                                                               \
 288     } while (0)
 289
 290
 291 /* Variables used to pass information between the Breakpoint
 292    constructor and the breakpoint-created hook function.  */
 293 extern gdbpy_breakpoint_object *bppy_pending_object;
 294
 295
 296 typedef struct
 297 {
 298   PyObject_HEAD
 299
 300   /* The thread we represent.  */
 301   struct thread_info *thread;
 302
 303   /* The Inferior object to which this thread belongs.  */
 304   PyObject *inf_obj;
 305 } thread_object;
 306
 307 extern struct cmd_list_element *set_python_list;
 308 extern struct cmd_list_element *show_python_list;
 309 \f
 310 /* extension_language_script_ops "methods".  */
 311
 312 extern int gdbpy_auto_load_enabled (const struct extension_language_defn *);
 313
 314 /* extension_language_ops "methods".  */
 315
 316 extern enum ext_lang_rc gdbpy_apply_val_pretty_printer
 317   (const struct extension_language_defn *,
 318    struct type *type, const gdb_byte *valaddr,
 319    int embedded_offset, CORE_ADDR address,
 320    struct ui_file *stream, int recurse,
 321    const struct value *val,
 322    const struct value_print_options *options,
 323    const struct language_defn *language);
 324 extern enum ext_lang_bt_status gdbpy_apply_frame_filter
 325   (const struct extension_language_defn *,
 326    struct frame_info *frame, int flags, enum ext_lang_frame_args args_type,
 327    struct ui_out *out, int frame_low, int frame_high);
 328 extern void gdbpy_preserve_values (const struct extension_language_defn *,
 329                                    struct objfile *objfile,
 330                                    htab_t copied_types);
 331 extern enum ext_lang_bp_stop gdbpy_breakpoint_cond_says_stop
 332   (const struct extension_language_defn *, struct breakpoint *);
 333 extern int gdbpy_breakpoint_has_cond (const struct extension_language_defn *,
 334                                       struct breakpoint *b);
 335
 336 extern void *gdbpy_clone_xmethod_worker_data
 337   (const struct extension_language_defn *extlang, void *data);
 338 extern void gdbpy_free_xmethod_worker_data
 339   (const struct extension_language_defn *extlang, void *data);
 340 extern enum ext_lang_rc gdbpy_get_matching_xmethod_workers
 341   (const struct extension_language_defn *extlang,
 342    struct type *obj_type, const char *method_name,
 343    xmethod_worker_vec **dm_vec);
 344 extern enum ext_lang_rc gdbpy_get_xmethod_arg_types
 345   (const struct extension_language_defn *extlang,
 346    struct xmethod_worker *worker,
 347    int *nargs,
 348    struct type ***arg_types);
 349 extern enum ext_lang_rc gdbpy_get_xmethod_result_type
 350   (const struct extension_language_defn *extlang,
 351    struct xmethod_worker *worker,
 352    struct value *object, struct value **args, int nargs,
 353    struct type **result_type);
 354 extern struct value *gdbpy_invoke_xmethod
 355   (const struct extension_language_defn *extlang,
 356    struct xmethod_worker *worker,
 357    struct value *obj, struct value **args, int nargs);
 358 \f
 359 PyObject *gdbpy_history (PyObject *self, PyObject *args);
 360 PyObject *gdbpy_breakpoints (PyObject *, PyObject *);
 361 PyObject *gdbpy_frame_stop_reason_string (PyObject *, PyObject *);
 362 PyObject *gdbpy_lookup_symbol (PyObject *self, PyObject *args, PyObject *kw);
 363 PyObject *gdbpy_lookup_global_symbol (PyObject *self, PyObject *args,
 364                                       PyObject *kw);
 365 PyObject *gdbpy_newest_frame (PyObject *self, PyObject *args);
 366 PyObject *gdbpy_selected_frame (PyObject *self, PyObject *args);
 367 PyObject *gdbpy_block_for_pc (PyObject *self, PyObject *args);
 368 PyObject *gdbpy_lookup_type (PyObject *self, PyObject *args, PyObject *kw);
 369 int gdbpy_is_field (PyObject *obj);
 370 PyObject *gdbpy_create_lazy_string_object (CORE_ADDR address, long length,
 371                                            const char *encoding,
 372                                            struct type *type);
 373 PyObject *gdbpy_inferiors (PyObject *unused, PyObject *unused2);
 374 PyObject *gdbpy_create_ptid_object (ptid_t ptid);
 375 PyObject *gdbpy_selected_thread (PyObject *self, PyObject *args);
 376 PyObject *gdbpy_selected_inferior (PyObject *self, PyObject *args);
 377 PyObject *gdbpy_string_to_argv (PyObject *self, PyObject *args);
 378 PyObject *gdbpy_parameter (PyObject *self, PyObject *args);
 379 PyObject *gdbpy_parameter_value (enum var_types type, void *var);
 380 char *gdbpy_parse_command_name (const char *name,
 381                                 struct cmd_list_element ***base_list,
 382                                 struct cmd_list_element **start_list);
 383
 384 PyObject *symtab_and_line_to_sal_object (struct symtab_and_line sal);
 385 PyObject *symtab_to_symtab_object (struct symtab *symtab);
 386 PyObject *symbol_to_symbol_object (struct symbol *sym);
 387 PyObject *block_to_block_object (const struct block *block,
 388                                  struct objfile *objfile);
 389 PyObject *value_to_value_object (struct value *v);
 390 PyObject *type_to_type_object (struct type *);
 391 PyObject *frame_info_to_frame_object (struct frame_info *frame);
 392 PyObject *symtab_to_linetable_object (PyObject *symtab);
 393 PyObject *pspace_to_pspace_object (struct program_space *)
 394     CPYCHECKER_RETURNS_BORROWED_REF;
 395 PyObject *pspy_get_printers (PyObject *, void *);
 396 PyObject *pspy_get_frame_filters (PyObject *, void *);
 397 PyObject *pspy_get_frame_unwinders (PyObject *, void *);
 398 PyObject *pspy_get_xmethods (PyObject *, void *);
 399
 400 PyObject *objfile_to_objfile_object (struct objfile *)
 401     CPYCHECKER_RETURNS_BORROWED_REF;
 402 PyObject *objfpy_get_printers (PyObject *, void *);
 403 PyObject *objfpy_get_frame_filters (PyObject *, void *);
 404 PyObject *objfpy_get_frame_unwinders (PyObject *, void *);
 405 PyObject *objfpy_get_xmethods (PyObject *, void *);
 406 PyObject *gdbpy_lookup_objfile (PyObject *self, PyObject *args, PyObject *kw);
 407
 408 PyObject *gdbarch_to_arch_object (struct gdbarch *gdbarch);
 409
 410 thread_object *create_thread_object (struct thread_info *tp);
 411 thread_object *find_thread_object (ptid_t ptid)
 412     CPYCHECKER_RETURNS_BORROWED_REF;
 413 PyObject *find_inferior_object (int pid);
 414 PyObject *inferior_to_inferior_object (struct inferior *inferior);
 415
 416 const struct block *block_object_to_block (PyObject *obj);
 417 struct symbol *symbol_object_to_symbol (PyObject *obj);
 418 struct value *value_object_to_value (PyObject *self);
 419 struct value *convert_value_from_python (PyObject *obj);
 420 struct type *type_object_to_type (PyObject *obj);
 421 struct symtab *symtab_object_to_symtab (PyObject *obj);
 422 struct symtab_and_line *sal_object_to_symtab_and_line (PyObject *obj);
 423 struct frame_info *frame_object_to_frame_info (PyObject *frame_obj);
 424 struct gdbarch *arch_object_to_gdbarch (PyObject *obj);
 425
 426 void gdbpy_initialize_gdb_readline (void);
 427 int gdbpy_initialize_auto_load (void)
 428   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 429 int gdbpy_initialize_values (void)
 430   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 431 int gdbpy_initialize_frames (void)
 432   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 433 int gdbpy_initialize_symtabs (void)
 434   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 435 int gdbpy_initialize_commands (void)
 436   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 437 int gdbpy_initialize_symbols (void)
 438   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 439 int gdbpy_initialize_symtabs (void)
 440   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 441 int gdbpy_initialize_blocks (void)
 442   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 443 int gdbpy_initialize_types (void)
 444   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 445 int gdbpy_initialize_functions (void)
 446   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 447 int gdbpy_initialize_pspace (void)
 448   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 449 int gdbpy_initialize_objfile (void)
 450   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 451 int gdbpy_initialize_breakpoints (void)
 452   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 453 int gdbpy_initialize_finishbreakpoints (void)
 454   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 455 int gdbpy_initialize_lazy_string (void)
 456   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 457 int gdbpy_initialize_linetable (void)
 458   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 459 int gdbpy_initialize_parameters (void)
 460   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 461 int gdbpy_initialize_thread (void)
 462   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 463 int gdbpy_initialize_inferior (void)
 464   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 465 int gdbpy_initialize_eventregistry (void)
 466   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 467 int gdbpy_initialize_event (void)
 468   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 469 int gdbpy_initialize_py_events (void)
 470   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 471 int gdbpy_initialize_stop_event (void)
 472   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 473 int gdbpy_initialize_signal_event (void)
 474   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 475 int gdbpy_initialize_breakpoint_event (void)
 476   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 477 int gdbpy_initialize_continue_event (void)
 478   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 479 int gdbpy_initialize_inferior_call_pre_event (void)
 480   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 481 int gdbpy_initialize_inferior_call_post_event (void)
 482   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 483 int gdbpy_initialize_register_changed_event (void)
 484   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 485 int gdbpy_initialize_memory_changed_event (void)
 486   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 487 int gdbpy_initialize_exited_event (void)
 488   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 489 int gdbpy_initialize_thread_event (void)
 490   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 491 int gdbpy_initialize_new_objfile_event (void)
 492   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 493 int gdbpy_initialize_clear_objfiles_event (void)
 494   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 495 int gdbpy_initialize_arch (void)
 496   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 497 int gdbpy_initialize_xmethods (void)
 498   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 499 int gdbpy_initialize_unwind (void)
 500   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 501
 502 struct cleanup *make_cleanup_py_decref (PyObject *py);
 503 struct cleanup *make_cleanup_py_xdecref (PyObject *py);
 504
 505 struct cleanup *ensure_python_env (struct gdbarch *gdbarch,
 506                                    const struct language_defn *language);
 507
 508 extern struct gdbarch *python_gdbarch;
 509 extern const struct language_defn *python_language;
 510
 511 /* Use this after a TRY_EXCEPT to throw the appropriate Python
 512    exception.  */
 513 #define GDB_PY_HANDLE_EXCEPTION(Exception)      \
 514   do {                                          \
 515     if (Exception.reason < 0)                   \
 516       {                                         \
 517         gdbpy_convert_exception (Exception);    \
 518         return NULL;                            \
 519       }                                         \
 520   } while (0)
 521
 522 /* Use this after a TRY_EXCEPT to throw the appropriate Python
 523    exception.  This macro is for use inside setter functions.  */
 524 #define GDB_PY_SET_HANDLE_EXCEPTION(Exception)                          \
 525     do {                                                                \
 526       if (Exception.reason < 0)                                         \
 527         {                                                               \
 528           gdbpy_convert_exception (Exception);                          \
 529           return -1;                                                    \
 530         }                                                               \
 531     } while (0)
 532
 533 int gdbpy_print_python_errors_p (void);
 534 void gdbpy_print_stack (void);
 535
 536 PyObject *python_string_to_unicode (PyObject *obj);
 537 char *unicode_to_target_string (PyObject *unicode_str);
 538 char *python_string_to_target_string (PyObject *obj);
 539 PyObject *python_string_to_target_python_string (PyObject *obj);
 540 char *python_string_to_host_string (PyObject *obj);
 541 int gdbpy_is_string (PyObject *obj);
 542 char *gdbpy_obj_to_string (PyObject *obj);
 543 char *gdbpy_exception_to_string (PyObject *ptype, PyObject *pvalue);
 544
 545 int gdbpy_is_lazy_string (PyObject *result);
 546 void gdbpy_extract_lazy_string (PyObject *string, CORE_ADDR *addr,
 547                                 struct type **str_type,
 548                                 long *length, char **encoding);
 549
 550 int gdbpy_is_value_object (PyObject *obj);
 551
 552 /* Note that these are declared here, and not in python.h with the
 553    other pretty-printer functions, because they refer to PyObject.  */
 554 PyObject *apply_varobj_pretty_printer (PyObject *print_obj,
 555                                        struct value **replacement,
 556                                        struct ui_file *stream);
 557 PyObject *gdbpy_get_varobj_pretty_printer (struct value *value);
 558 char *gdbpy_get_display_hint (PyObject *printer);
 559 PyObject *gdbpy_default_visualizer (PyObject *self, PyObject *args);
 560
 561 void bpfinishpy_pre_stop_hook (struct gdbpy_breakpoint_object *bp_obj);
 562 void bpfinishpy_post_stop_hook (struct gdbpy_breakpoint_object *bp_obj);
 563
 564 extern PyObject *gdbpy_doc_cst;
 565 extern PyObject *gdbpy_children_cst;
 566 extern PyObject *gdbpy_to_string_cst;
 567 extern PyObject *gdbpy_display_hint_cst;
 568 extern PyObject *gdbpy_enabled_cst;
 569 extern PyObject *gdbpy_value_cst;
 570
 571 /* Exception types.  */
 572 extern PyObject *gdbpy_gdb_error;
 573 extern PyObject *gdbpy_gdb_memory_error;
 574 extern PyObject *gdbpy_gdberror_exc;
 575
 576 extern void gdbpy_convert_exception (struct gdb_exception)
 577     CPYCHECKER_SETS_EXCEPTION;
 578
 579 int get_addr_from_python (PyObject *obj, CORE_ADDR *addr)
 580     CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 581
 582 PyObject *gdb_py_object_from_longest (LONGEST l);
 583 PyObject *gdb_py_object_from_ulongest (ULONGEST l);
 584 int gdb_py_int_as_long (PyObject *, long *);
 585
 586 PyObject *gdb_py_generic_dict (PyObject *self, void *closure);
 587
 588 int gdb_pymodule_addobject (PyObject *module, const char *name,
 589                             PyObject *object)
 590   CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
 591
 592 struct varobj_iter;
 593 struct varobj;
 594 struct varobj_iter *py_varobj_get_iterator (struct varobj *var,
 595                                             PyObject *printer);
 596
 597 #endif /* GDB_PYTHON_INTERNAL_H */