1 /* Gdb/Python header for private use by Python module.
3 Copyright (C) 2008-2013 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
20 #ifndef GDB_PYTHON_INTERNAL_H
21 #define GDB_PYTHON_INTERNAL_H
23 /* These WITH_* macros are defined by the CPython API checker that
24 comes with the Python plugin for GCC. See:
25 https://gcc-python-plugin.readthedocs.org/en/latest/cpychecker.html
26 The checker defines a WITH_ macro for each attribute it
29 #ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE
30 #define CPYCHECKER_RETURNS_BORROWED_REF \
31 __attribute__ ((cpychecker_returns_borrowed_ref))
33 #define CPYCHECKER_RETURNS_BORROWED_REF
36 #ifdef WITH_CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF_ATTRIBUTE
37 #define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(ARG) \
38 __attribute__ ((cpychecker_type_object_for_typedef (ARG)))
40 #define CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF(ARG)
43 #ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE
44 #define CPYCHECKER_STEALS_REFERENCE_TO_ARG(n) \
45 __attribute__ ((cpychecker_steals_reference_to_arg (n)))
47 #define CPYCHECKER_STEALS_REFERENCE_TO_ARG(n)
52 /* Python 2.4 doesn't include stdint.h soon enough to get {u,}intptr_t
53 needed by pyport.h. */
56 /* /usr/include/features.h on linux systems will define _POSIX_C_SOURCE
57 if it sees _GNU_SOURCE (which config.h will define).
58 pyconfig.h defines _POSIX_C_SOURCE to a different value than
59 /usr/include/features.h does causing compilation to fail.
60 To work around this, undef _POSIX_C_SOURCE before we include Python.h.
62 Same problem with _XOPEN_SOURCE. */
63 #undef _POSIX_C_SOURCE
66 /* On sparc-solaris, /usr/include/sys/feature_tests.h defines
67 _FILE_OFFSET_BITS, which pyconfig.h also defines. Same work
68 around technique as above. */
69 #undef _FILE_OFFSET_BITS
71 /* A kludge to avoid redefinition of snprintf on Windows by pyerrors.h. */
72 #if defined(_WIN32) && defined(HAVE_DECL_SNPRINTF)
73 #define HAVE_SNPRINTF 1
76 /* Request clean size types from Python. */
77 #define PY_SSIZE_T_CLEAN
79 /* Include the Python header files using angle brackets rather than
80 double quotes. On case-insensitive filesystems, this prevents us
81 from including our python/python.h header file. */
83 #include <frameobject.h>
85 #if PY_MAJOR_VERSION >= 3
90 #define Py_TPFLAGS_HAVE_ITER 0
91 #define Py_TPFLAGS_CHECKTYPES 0
93 #define PyInt_Check PyLong_Check
94 #define PyInt_FromLong PyLong_FromLong
95 #define PyInt_AsLong PyLong_AsLong
97 #define PyString_FromString PyUnicode_FromString
98 #define PyString_Decode PyUnicode_Decode
99 #define PyString_FromFormat PyUnicode_FromFormat
100 #define PyString_Check PyUnicode_Check
103 #if HAVE_LIBPYTHON2_4
104 /* Py_ssize_t is not defined until 2.5.
105 Logical type for Py_ssize_t is Py_intptr_t, but that fails in 64-bit
106 compilation due to several apparent mistakes in python2.4 API, so we
107 use 'int' instead. */
108 typedef int Py_ssize_t;
111 #ifndef PyVarObject_HEAD_INIT
112 /* Python 2.4 does not define PyVarObject_HEAD_INIT. */
113 #define PyVarObject_HEAD_INIT(type, size) \
114 PyObject_HEAD_INIT(type) size,
119 /* Python 2.4 does not define Py_TYPE. */
120 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
123 /* If Python.h does not define WITH_THREAD, then the various
124 GIL-related functions will not be defined. However,
125 PyGILState_STATE will be. */
127 #define PyGILState_Ensure() ((PyGILState_STATE) 0)
128 #define PyGILState_Release(ARG) ((void)(ARG))
129 #define PyEval_InitThreads()
130 #define PyThreadState_Swap(ARG) ((void)(ARG))
131 #define PyEval_ReleaseLock()
134 /* Python supplies HAVE_LONG_LONG and some `long long' support when it
135 is available. These defines let us handle the differences more
137 #ifdef HAVE_LONG_LONG
139 #define GDB_PY_LL_ARG "L"
140 #define GDB_PY_LLU_ARG "K"
141 typedef PY_LONG_LONG gdb_py_longest;
142 typedef unsigned PY_LONG_LONG gdb_py_ulongest;
143 #define gdb_py_long_from_longest PyLong_FromLongLong
144 #define gdb_py_long_from_ulongest PyLong_FromUnsignedLongLong
145 #define gdb_py_long_as_ulongest PyLong_AsUnsignedLongLong
147 #else /* HAVE_LONG_LONG */
149 #define GDB_PY_LL_ARG "L"
150 #define GDB_PY_LLU_ARG "K"
151 typedef long gdb_py_longest;
152 typedef unsigned long gdb_py_ulongest;
153 #define gdb_py_long_from_longest PyLong_FromLong
154 #define gdb_py_long_from_ulongest PyLong_FromUnsignedLong
155 #define gdb_py_long_as_ulongest PyLong_AsUnsignedLong
157 #endif /* HAVE_LONG_LONG */
160 /* In order to be able to parse symtab_and_line_to_sal_object function
161 a real symtab_and_line structure is needed. */
164 /* Also needed to parse enum var_types. */
166 #include "breakpoint.h"
168 #include "exceptions.h"
170 enum gdbpy_iter_kind { iter_keys, iter_values, iter_items };
174 struct language_defn;
175 struct program_space;
179 extern PyObject *gdb_module;
180 extern PyObject *gdb_python_module;
181 extern PyTypeObject value_object_type
182 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("value_object");
183 extern PyTypeObject block_object_type
184 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF("block_object");
185 extern PyTypeObject symbol_object_type
186 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("symbol_object");
187 extern PyTypeObject event_object_type
188 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
189 extern PyTypeObject events_object_type;
190 extern PyTypeObject stop_event_object_type
191 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
192 extern PyTypeObject breakpoint_object_type
193 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("breakpoint_object");
194 extern PyTypeObject frame_object_type
195 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("frame_object");
197 typedef struct breakpoint_object
201 /* The breakpoint number according to gdb. */
204 /* The gdb breakpoint object, or NULL if the breakpoint has been
206 struct breakpoint *bp;
208 /* 1 is this is a FinishBreakpoint object, 0 otherwise. */
212 /* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
213 exception if it is invalid. */
214 #define BPPY_REQUIRE_VALID(Breakpoint) \
216 if ((Breakpoint)->bp == NULL) \
217 return PyErr_Format (PyExc_RuntimeError, \
218 _("Breakpoint %d is invalid."), \
219 (Breakpoint)->number); \
222 /* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
223 exception if it is invalid. This macro is for use in setter functions. */
224 #define BPPY_SET_REQUIRE_VALID(Breakpoint) \
226 if ((Breakpoint)->bp == NULL) \
228 PyErr_Format (PyExc_RuntimeError, _("Breakpoint %d is invalid."), \
229 (Breakpoint)->number); \
235 /* Variables used to pass information between the Breakpoint
236 constructor and the breakpoint-created hook function. */
237 extern breakpoint_object *bppy_pending_object;
244 /* The thread we represent. */
245 struct thread_info *thread;
247 /* The Inferior object to which this thread belongs. */
251 extern struct cmd_list_element *set_python_list;
252 extern struct cmd_list_element *show_python_list;
254 PyObject *gdbpy_history (PyObject *self, PyObject *args);
255 PyObject *gdbpy_breakpoints (PyObject *, PyObject *);
256 PyObject *gdbpy_frame_stop_reason_string (PyObject *, PyObject *);
257 PyObject *gdbpy_lookup_symbol (PyObject *self, PyObject *args, PyObject *kw);
258 PyObject *gdbpy_lookup_global_symbol (PyObject *self, PyObject *args,
260 PyObject *gdbpy_newest_frame (PyObject *self, PyObject *args);
261 PyObject *gdbpy_selected_frame (PyObject *self, PyObject *args);
262 PyObject *gdbpy_block_for_pc (PyObject *self, PyObject *args);
263 PyObject *gdbpy_lookup_type (PyObject *self, PyObject *args, PyObject *kw);
264 PyObject *gdbpy_create_lazy_string_object (CORE_ADDR address, long length,
265 const char *encoding,
267 PyObject *gdbpy_inferiors (PyObject *unused, PyObject *unused2);
268 PyObject *gdbpy_selected_thread (PyObject *self, PyObject *args);
269 PyObject *gdbpy_selected_inferior (PyObject *self, PyObject *args);
270 PyObject *gdbpy_string_to_argv (PyObject *self, PyObject *args);
271 PyObject *gdbpy_parameter (PyObject *self, PyObject *args);
272 PyObject *gdbpy_parameter_value (enum var_types type, void *var);
273 char *gdbpy_parse_command_name (const char *name,
274 struct cmd_list_element ***base_list,
275 struct cmd_list_element **start_list);
277 PyObject *symtab_and_line_to_sal_object (struct symtab_and_line sal);
278 PyObject *symtab_to_symtab_object (struct symtab *symtab);
279 PyObject *symbol_to_symbol_object (struct symbol *sym);
280 PyObject *block_to_block_object (const struct block *block,
281 struct objfile *objfile);
282 PyObject *value_to_value_object (struct value *v);
283 PyObject *type_to_type_object (struct type *);
284 PyObject *frame_info_to_frame_object (struct frame_info *frame);
286 PyObject *pspace_to_pspace_object (struct program_space *)
287 CPYCHECKER_RETURNS_BORROWED_REF;
288 PyObject *pspy_get_printers (PyObject *, void *);
289 PyObject *pspy_get_frame_filters (PyObject *, void *);
291 PyObject *objfile_to_objfile_object (struct objfile *)
292 CPYCHECKER_RETURNS_BORROWED_REF;
293 PyObject *objfpy_get_printers (PyObject *, void *);
294 PyObject *objfpy_get_frame_filters (PyObject *, void *);
296 PyObject *gdbarch_to_arch_object (struct gdbarch *gdbarch);
298 thread_object *create_thread_object (struct thread_info *tp);
299 thread_object *find_thread_object (ptid_t ptid)
300 CPYCHECKER_RETURNS_BORROWED_REF;
301 PyObject *find_inferior_object (int pid);
302 PyObject *inferior_to_inferior_object (struct inferior *inferior);
304 const struct block *block_object_to_block (PyObject *obj);
305 struct symbol *symbol_object_to_symbol (PyObject *obj);
306 struct value *value_object_to_value (PyObject *self);
307 struct value *convert_value_from_python (PyObject *obj);
308 struct type *type_object_to_type (PyObject *obj);
309 struct symtab *symtab_object_to_symtab (PyObject *obj);
310 struct symtab_and_line *sal_object_to_symtab_and_line (PyObject *obj);
311 struct frame_info *frame_object_to_frame_info (PyObject *frame_obj);
312 struct gdbarch *arch_object_to_gdbarch (PyObject *obj);
314 void gdbpy_initialize_gdb_readline (void);
315 void gdbpy_initialize_auto_load (void);
316 void gdbpy_initialize_values (void);
317 void gdbpy_initialize_frames (void);
318 void gdbpy_initialize_symtabs (void);
319 void gdbpy_initialize_commands (void);
320 void gdbpy_initialize_symbols (void);
321 void gdbpy_initialize_symtabs (void);
322 void gdbpy_initialize_blocks (void);
323 void gdbpy_initialize_types (void);
324 void gdbpy_initialize_functions (void);
325 void gdbpy_initialize_pspace (void);
326 void gdbpy_initialize_objfile (void);
327 void gdbpy_initialize_breakpoints (void);
328 void gdbpy_initialize_finishbreakpoints (void);
329 void gdbpy_initialize_lazy_string (void);
330 void gdbpy_initialize_parameters (void);
331 void gdbpy_initialize_thread (void);
332 void gdbpy_initialize_inferior (void);
333 void gdbpy_initialize_eventregistry (void);
334 void gdbpy_initialize_event (void);
335 void gdbpy_initialize_py_events (void);
336 void gdbpy_initialize_stop_event (void);
337 void gdbpy_initialize_signal_event (void);
338 void gdbpy_initialize_breakpoint_event (void);
339 void gdbpy_initialize_continue_event (void);
340 void gdbpy_initialize_exited_event (void);
341 void gdbpy_initialize_thread_event (void);
342 void gdbpy_initialize_new_objfile_event (void);
343 void gdbpy_initialize_arch (void);
345 struct cleanup *make_cleanup_py_decref (PyObject *py);
346 struct cleanup *make_cleanup_py_xdecref (PyObject *py);
348 struct cleanup *ensure_python_env (struct gdbarch *gdbarch,
349 const struct language_defn *language);
351 extern struct gdbarch *python_gdbarch;
352 extern const struct language_defn *python_language;
354 /* Use this after a TRY_EXCEPT to throw the appropriate Python
356 #define GDB_PY_HANDLE_EXCEPTION(Exception) \
358 if (Exception.reason < 0) \
359 return gdbpy_convert_exception (Exception); \
362 /* Use this after a TRY_EXCEPT to throw the appropriate Python
363 exception. This macro is for use inside setter functions. */
364 #define GDB_PY_SET_HANDLE_EXCEPTION(Exception) \
366 if (Exception.reason < 0) \
368 gdbpy_convert_exception (Exception); \
373 void gdbpy_print_stack (void);
375 void source_python_script_for_objfile (struct objfile *objfile, FILE *file,
376 const char *filename);
378 PyObject *python_string_to_unicode (PyObject *obj);
379 char *unicode_to_target_string (PyObject *unicode_str);
380 char *python_string_to_target_string (PyObject *obj);
381 PyObject *python_string_to_target_python_string (PyObject *obj);
382 char *python_string_to_host_string (PyObject *obj);
383 int gdbpy_is_string (PyObject *obj);
384 char *gdbpy_obj_to_string (PyObject *obj);
385 char *gdbpy_exception_to_string (PyObject *ptype, PyObject *pvalue);
387 int gdbpy_is_lazy_string (PyObject *result);
388 void gdbpy_extract_lazy_string (PyObject *string, CORE_ADDR *addr,
389 struct type **str_type,
390 long *length, char **encoding);
392 int gdbpy_is_value_object (PyObject *obj);
394 /* Note that these are declared here, and not in python.h with the
395 other pretty-printer functions, because they refer to PyObject. */
396 PyObject *apply_varobj_pretty_printer (PyObject *print_obj,
397 struct value **replacement,
398 struct ui_file *stream);
399 PyObject *gdbpy_get_varobj_pretty_printer (struct value *value);
400 char *gdbpy_get_display_hint (PyObject *printer);
401 PyObject *gdbpy_default_visualizer (PyObject *self, PyObject *args);
403 void bpfinishpy_pre_stop_hook (struct breakpoint_object *bp_obj);
404 void bpfinishpy_post_stop_hook (struct breakpoint_object *bp_obj);
406 extern PyObject *gdbpy_doc_cst;
407 extern PyObject *gdbpy_children_cst;
408 extern PyObject *gdbpy_to_string_cst;
409 extern PyObject *gdbpy_display_hint_cst;
410 extern PyObject *gdbpy_enabled_cst;
411 extern PyObject *gdbpy_value_cst;
413 /* Exception types. */
414 extern PyObject *gdbpy_gdb_error;
415 extern PyObject *gdbpy_gdb_memory_error;
416 extern PyObject *gdbpy_gdberror_exc;
418 extern PyObject *gdbpy_convert_exception (struct gdb_exception);
420 int get_addr_from_python (PyObject *obj, CORE_ADDR *addr);
422 PyObject *gdb_py_object_from_longest (LONGEST l);
423 PyObject *gdb_py_object_from_ulongest (ULONGEST l);
424 int gdb_py_int_as_long (PyObject *, long *);
426 PyObject *gdb_py_generic_dict (PyObject *self, void *closure);
428 #endif /* GDB_PYTHON_INTERNAL_H */