| /* Python frame unwinder interface. |
| |
| Copyright (C) 2015-2017 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| #include "arch-utils.h" |
| #include "frame-unwind.h" |
| #include "gdb_obstack.h" |
| #include "gdbcmd.h" |
| #include "language.h" |
| #include "observer.h" |
| #include "python-internal.h" |
| #include "regcache.h" |
| #include "valprint.h" |
| #include "user-regs.h" |
| #include "py-ref.h" |
| |
| #define TRACE_PY_UNWIND(level, args...) if (pyuw_debug >= level) \ |
| { fprintf_unfiltered (gdb_stdlog, args); } |
| |
| typedef struct |
| { |
| PyObject_HEAD |
| |
| /* Frame we are unwinding. */ |
| struct frame_info *frame_info; |
| |
| /* Its architecture, passed by the sniffer caller. */ |
| struct gdbarch *gdbarch; |
| } pending_frame_object; |
| |
| /* Saved registers array item. */ |
| |
| typedef struct |
| { |
| int number; |
| PyObject *value; |
| } saved_reg; |
| DEF_VEC_O (saved_reg); |
| |
| /* The data we keep for the PyUnwindInfo: pending_frame, saved registers |
| and frame ID. */ |
| |
| typedef struct |
| { |
| PyObject_HEAD |
| |
| /* gdb.PendingFrame for the frame we are unwinding. */ |
| PyObject *pending_frame; |
| |
| /* Its ID. */ |
| struct frame_id frame_id; |
| |
| /* Saved registers array. */ |
| VEC (saved_reg) *saved_regs; |
| } unwind_info_object; |
| |
| /* The data we keep for a frame we can unwind: frame ID and an array of |
| (register_number, register_value) pairs. */ |
| |
| struct reg_info |
| { |
| /* Register number. */ |
| int number; |
| |
| /* Register data bytes pointer. */ |
| gdb_byte data[MAX_REGISTER_SIZE]; |
| }; |
| |
| typedef struct |
| { |
| /* Frame ID. */ |
| struct frame_id frame_id; |
| |
| /* GDB Architecture. */ |
| struct gdbarch *gdbarch; |
| |
| /* Length of the `reg' array below. */ |
| int reg_count; |
| |
| struct reg_info reg[]; |
| } cached_frame_info; |
| |
| extern PyTypeObject pending_frame_object_type |
| CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("pending_frame_object"); |
| |
| extern PyTypeObject unwind_info_object_type |
| CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("unwind_info_object"); |
| |
| static unsigned int pyuw_debug = 0; |
| |
| static struct gdbarch_data *pyuw_gdbarch_data; |
| |
| /* Parses register id, which can be either a number or a name. |
| Returns 1 on success, 0 otherwise. */ |
| |
| static int |
| pyuw_parse_register_id (struct gdbarch *gdbarch, PyObject *pyo_reg_id, |
| int *reg_num) |
| { |
| if (pyo_reg_id == NULL) |
| return 0; |
| if (gdbpy_is_string (pyo_reg_id)) |
| { |
| gdb::unique_xmalloc_ptr<char> reg_name (gdbpy_obj_to_string (pyo_reg_id)); |
| |
| if (reg_name == NULL) |
| return 0; |
| *reg_num = user_reg_map_name_to_regnum (gdbarch, reg_name.get (), |
| strlen (reg_name.get ())); |
| return *reg_num >= 0; |
| } |
| else if (PyInt_Check (pyo_reg_id)) |
| { |
| long value; |
| if (gdb_py_int_as_long (pyo_reg_id, &value) && (int) value == value) |
| { |
| *reg_num = (int) value; |
| return user_reg_map_regnum_to_name (gdbarch, *reg_num) != NULL; |
| } |
| } |
| return 0; |
| } |
| |
| /* Convert gdb.Value instance to inferior's pointer. Return 1 on success, |
| 0 on failure. */ |
| |
| static int |
| pyuw_value_obj_to_pointer (PyObject *pyo_value, CORE_ADDR *addr) |
| { |
| int rc = 0; |
| struct value *value; |
| |
| TRY |
| { |
| if ((value = value_object_to_value (pyo_value)) != NULL) |
| { |
| *addr = unpack_pointer (value_type (value), |
| value_contents (value)); |
| rc = 1; |
| } |
| } |
| CATCH (except, RETURN_MASK_ALL) |
| { |
| gdbpy_convert_exception (except); |
| } |
| END_CATCH |
| return rc; |
| } |
| |
| /* Get attribute from an object and convert it to the inferior's |
| pointer value. Return 1 if attribute exists and its value can be |
| converted. Otherwise, if attribute does not exist or its value is |
| None, return 0. In all other cases set Python error and return |
| 0. */ |
| |
| static int |
| pyuw_object_attribute_to_pointer (PyObject *pyo, const char *attr_name, |
| CORE_ADDR *addr) |
| { |
| int rc = 0; |
| |
| if (PyObject_HasAttrString (pyo, attr_name)) |
| { |
| gdbpy_ref<> pyo_value (PyObject_GetAttrString (pyo, attr_name)); |
| |
| if (pyo_value != NULL && pyo_value != Py_None) |
| { |
| rc = pyuw_value_obj_to_pointer (pyo_value.get (), addr); |
| if (!rc) |
| PyErr_Format ( |
| PyExc_ValueError, |
| _("The value of the '%s' attribute is not a pointer."), |
| attr_name); |
| } |
| } |
| return rc; |
| } |
| |
| /* Called by the Python interpreter to obtain string representation |
| of the UnwindInfo object. */ |
| |
| static PyObject * |
| unwind_infopy_str (PyObject *self) |
| { |
| unwind_info_object *unwind_info = (unwind_info_object *) self; |
| string_file stb; |
| |
| stb.puts ("Frame ID: "); |
| fprint_frame_id (&stb, unwind_info->frame_id); |
| { |
| const char *sep = ""; |
| int i; |
| struct value_print_options opts; |
| saved_reg *reg; |
| |
| get_user_print_options (&opts); |
| stb.printf ("\nSaved registers: ("); |
| for (i = 0; VEC_iterate (saved_reg, unwind_info->saved_regs, i, reg); i++) |
| { |
| struct value *value = value_object_to_value (reg->value); |
| |
| stb.printf ("%s(%d, ", sep, reg->number); |
| if (value != NULL) |
| { |
| TRY |
| { |
| value_print (value, &stb, &opts); |
| stb.puts (")"); |
| } |
| CATCH (except, RETURN_MASK_ALL) |
| { |
| GDB_PY_HANDLE_EXCEPTION (except); |
| } |
| END_CATCH |
| } |
| else |
| stb.puts ("<BAD>)"); |
| sep = ", "; |
| } |
| stb.puts (")"); |
| } |
| |
| return PyString_FromString (stb.c_str ()); |
| } |
| |
| /* Create UnwindInfo instance for given PendingFrame and frame ID. |
| Sets Python error and returns NULL on error. */ |
| |
| static PyObject * |
| pyuw_create_unwind_info (PyObject *pyo_pending_frame, |
| struct frame_id frame_id) |
| { |
| unwind_info_object *unwind_info |
| = PyObject_New (unwind_info_object, &unwind_info_object_type); |
| |
| if (((pending_frame_object *) pyo_pending_frame)->frame_info == NULL) |
| { |
| PyErr_SetString (PyExc_ValueError, |
| "Attempting to use stale PendingFrame"); |
| return NULL; |
| } |
| unwind_info->frame_id = frame_id; |
| Py_INCREF (pyo_pending_frame); |
| unwind_info->pending_frame = pyo_pending_frame; |
| unwind_info->saved_regs = VEC_alloc (saved_reg, 4); |
| return (PyObject *) unwind_info; |
| } |
| |
| /* The implementation of |
| gdb.UnwindInfo.add_saved_register (REG, VALUE) -> None. */ |
| |
| static PyObject * |
| unwind_infopy_add_saved_register (PyObject *self, PyObject *args) |
| { |
| unwind_info_object *unwind_info = (unwind_info_object *) self; |
| pending_frame_object *pending_frame |
| = (pending_frame_object *) (unwind_info->pending_frame); |
| PyObject *pyo_reg_id; |
| PyObject *pyo_reg_value; |
| int regnum; |
| |
| if (pending_frame->frame_info == NULL) |
| { |
| PyErr_SetString (PyExc_ValueError, |
| "UnwindInfo instance refers to a stale PendingFrame"); |
| return NULL; |
| } |
| if (!PyArg_UnpackTuple (args, "previous_frame_register", 2, 2, |
| &pyo_reg_id, &pyo_reg_value)) |
| return NULL; |
| if (!pyuw_parse_register_id (pending_frame->gdbarch, pyo_reg_id, ®num)) |
| { |
| PyErr_SetString (PyExc_ValueError, "Bad register"); |
| return NULL; |
| } |
| { |
| struct value *value; |
| size_t data_size; |
| |
| if (pyo_reg_value == NULL |
| || (value = value_object_to_value (pyo_reg_value)) == NULL) |
| { |
| PyErr_SetString (PyExc_ValueError, "Bad register value"); |
| return NULL; |
| } |
| data_size = register_size (pending_frame->gdbarch, regnum); |
| if (data_size != TYPE_LENGTH (value_type (value))) |
| { |
| PyErr_Format ( |
| PyExc_ValueError, |
| "The value of the register returned by the Python " |
| "sniffer has unexpected size: %u instead of %u.", |
| (unsigned) TYPE_LENGTH (value_type (value)), |
| (unsigned) data_size); |
| return NULL; |
| } |
| } |
| { |
| int i; |
| saved_reg *reg; |
| |
| for (i = 0; VEC_iterate (saved_reg, unwind_info->saved_regs, i, reg); i++) |
| { |
| if (regnum == reg->number) |
| { |
| Py_DECREF (reg->value); |
| break; |
| } |
| } |
| if (reg == NULL) |
| { |
| reg = VEC_safe_push (saved_reg, unwind_info->saved_regs, NULL); |
| reg->number = regnum; |
| } |
| Py_INCREF (pyo_reg_value); |
| reg->value = pyo_reg_value; |
| } |
| Py_RETURN_NONE; |
| } |
| |
| /* UnwindInfo cleanup. */ |
| |
| static void |
| unwind_infopy_dealloc (PyObject *self) |
| { |
| unwind_info_object *unwind_info = (unwind_info_object *) self; |
| int i; |
| saved_reg *reg; |
| |
| Py_XDECREF (unwind_info->pending_frame); |
| for (i = 0; VEC_iterate (saved_reg, unwind_info->saved_regs, i, reg); i++) |
| Py_DECREF (reg->value); |
| VEC_free (saved_reg, unwind_info->saved_regs); |
| Py_TYPE (self)->tp_free (self); |
| } |
| |
| /* Called by the Python interpreter to obtain string representation |
| of the PendingFrame object. */ |
| |
| static PyObject * |
| pending_framepy_str (PyObject *self) |
| { |
| struct frame_info *frame = ((pending_frame_object *) self)->frame_info; |
| const char *sp_str = NULL; |
| const char *pc_str = NULL; |
| |
| if (frame == NULL) |
| return PyString_FromString ("Stale PendingFrame instance"); |
| TRY |
| { |
| sp_str = core_addr_to_string_nz (get_frame_sp (frame)); |
| pc_str = core_addr_to_string_nz (get_frame_pc (frame)); |
| } |
| CATCH (except, RETURN_MASK_ALL) |
| { |
| GDB_PY_HANDLE_EXCEPTION (except); |
| } |
| END_CATCH |
| |
| return PyString_FromFormat ("SP=%s,PC=%s", sp_str, pc_str); |
| } |
| |
| /* Implementation of gdb.PendingFrame.read_register (self, reg) -> gdb.Value. |
| Returns the value of register REG as gdb.Value instance. */ |
| |
| static PyObject * |
| pending_framepy_read_register (PyObject *self, PyObject *args) |
| { |
| pending_frame_object *pending_frame = (pending_frame_object *) self; |
| struct value *val = NULL; |
| int regnum; |
| PyObject *pyo_reg_id; |
| |
| if (pending_frame->frame_info == NULL) |
| { |
| PyErr_SetString (PyExc_ValueError, |
| "Attempting to read register from stale PendingFrame"); |
| return NULL; |
| } |
| if (!PyArg_UnpackTuple (args, "read_register", 1, 1, &pyo_reg_id)) |
| return NULL; |
| if (!pyuw_parse_register_id (pending_frame->gdbarch, pyo_reg_id, ®num)) |
| { |
| PyErr_SetString (PyExc_ValueError, "Bad register"); |
| return NULL; |
| } |
| |
| TRY |
| { |
| /* Fetch the value associated with a register, whether it's |
| a real register or a so called "user" register, like "pc", |
| which maps to a real register. In the past, |
| get_frame_register_value() was used here, which did not |
| handle the user register case. */ |
| val = value_of_register (regnum, pending_frame->frame_info); |
| if (val == NULL) |
| PyErr_Format (PyExc_ValueError, |
| "Cannot read register %d from frame.", |
| regnum); |
| } |
| CATCH (except, RETURN_MASK_ALL) |
| { |
| GDB_PY_HANDLE_EXCEPTION (except); |
| } |
| END_CATCH |
| |
| return val == NULL ? NULL : value_to_value_object (val); |
| } |
| |
| /* Implementation of |
| PendingFrame.create_unwind_info (self, frameId) -> UnwindInfo. */ |
| |
| static PyObject * |
| pending_framepy_create_unwind_info (PyObject *self, PyObject *args) |
| { |
| PyObject *pyo_frame_id; |
| CORE_ADDR sp; |
| CORE_ADDR pc; |
| CORE_ADDR special; |
| |
| if (!PyArg_ParseTuple (args, "O:create_unwind_info", &pyo_frame_id)) |
| return NULL; |
| if (!pyuw_object_attribute_to_pointer (pyo_frame_id, "sp", &sp)) |
| { |
| PyErr_SetString (PyExc_ValueError, |
| _("frame_id should have 'sp' attribute.")); |
| return NULL; |
| } |
| |
| /* The logic of building frame_id depending on the attributes of |
| the frame_id object: |
| Has Has Has Function to call |
| 'sp'? 'pc'? 'special'? |
| ------|------|--------------|------------------------- |
| Y N * frame_id_build_wild (sp) |
| Y Y N frame_id_build (sp, pc) |
| Y Y Y frame_id_build_special (sp, pc, special) |
| */ |
| if (!pyuw_object_attribute_to_pointer (pyo_frame_id, "pc", &pc)) |
| return pyuw_create_unwind_info (self, frame_id_build_wild (sp)); |
| if (!pyuw_object_attribute_to_pointer (pyo_frame_id, "special", &special)) |
| return pyuw_create_unwind_info (self, frame_id_build (sp, pc)); |
| else |
| return pyuw_create_unwind_info (self, |
| frame_id_build_special (sp, pc, special)); |
| } |
| |
| /* frame_unwind.this_id method. */ |
| |
| static void |
| pyuw_this_id (struct frame_info *this_frame, void **cache_ptr, |
| struct frame_id *this_id) |
| { |
| *this_id = ((cached_frame_info *) *cache_ptr)->frame_id; |
| if (pyuw_debug >= 1) |
| { |
| fprintf_unfiltered (gdb_stdlog, "%s: frame_id: ", __FUNCTION__); |
| fprint_frame_id (gdb_stdlog, *this_id); |
| fprintf_unfiltered (gdb_stdlog, "\n"); |
| } |
| } |
| |
| /* frame_unwind.prev_register. */ |
| |
| static struct value * |
| pyuw_prev_register (struct frame_info *this_frame, void **cache_ptr, |
| int regnum) |
| { |
| cached_frame_info *cached_frame = (cached_frame_info *) *cache_ptr; |
| struct reg_info *reg_info = cached_frame->reg; |
| struct reg_info *reg_info_end = reg_info + cached_frame->reg_count; |
| |
| TRACE_PY_UNWIND (1, "%s (frame=%p,...,reg=%d)\n", __FUNCTION__, this_frame, |
| regnum); |
| for (; reg_info < reg_info_end; ++reg_info) |
| { |
| if (regnum == reg_info->number) |
| return frame_unwind_got_bytes (this_frame, regnum, reg_info->data); |
| } |
| |
| return frame_unwind_got_optimized (this_frame, regnum); |
| } |
| |
| /* Frame sniffer dispatch. */ |
| |
| static int |
| pyuw_sniffer (const struct frame_unwind *self, struct frame_info *this_frame, |
| void **cache_ptr) |
| { |
| struct gdbarch *gdbarch = (struct gdbarch *) (self->unwind_data); |
| cached_frame_info *cached_frame; |
| |
| gdbpy_enter enter_py (gdbarch, current_language); |
| |
| TRACE_PY_UNWIND (3, "%s (SP=%s, PC=%s)\n", __FUNCTION__, |
| paddress (gdbarch, get_frame_sp (this_frame)), |
| paddress (gdbarch, get_frame_pc (this_frame))); |
| |
| /* Create PendingFrame instance to pass to sniffers. */ |
| pending_frame_object *pfo = PyObject_New (pending_frame_object, |
| &pending_frame_object_type); |
| gdbpy_ref<> pyo_pending_frame ((PyObject *) pfo); |
| if (pyo_pending_frame == NULL) |
| { |
| gdbpy_print_stack (); |
| return 0; |
| } |
| pfo->gdbarch = gdbarch; |
| scoped_restore invalidate_frame = make_scoped_restore (&pfo->frame_info, |
| this_frame); |
| |
| /* Run unwinders. */ |
| if (gdb_python_module == NULL |
| || ! PyObject_HasAttrString (gdb_python_module, "execute_unwinders")) |
| { |
| PyErr_SetString (PyExc_NameError, |
| "Installation error: gdb.execute_unwinders function " |
| "is missing"); |
| gdbpy_print_stack (); |
| return 0; |
| } |
| gdbpy_ref<> pyo_execute (PyObject_GetAttrString (gdb_python_module, |
| "execute_unwinders")); |
| if (pyo_execute == NULL) |
| { |
| gdbpy_print_stack (); |
| return 0; |
| } |
| |
| gdbpy_ref<> pyo_unwind_info |
| (PyObject_CallFunctionObjArgs (pyo_execute.get (), |
| pyo_pending_frame.get (), NULL)); |
| if (pyo_unwind_info == NULL) |
| { |
| gdbpy_print_stack (); |
| return 0; |
| } |
| if (pyo_unwind_info == Py_None) |
| return 0; |
| |
| /* Received UnwindInfo, cache data. */ |
| if (PyObject_IsInstance (pyo_unwind_info.get (), |
| (PyObject *) &unwind_info_object_type) <= 0) |
| error (_("A Unwinder should return gdb.UnwindInfo instance.")); |
| |
| { |
| unwind_info_object *unwind_info = |
| (unwind_info_object *) pyo_unwind_info.get (); |
| int reg_count = VEC_length (saved_reg, unwind_info->saved_regs); |
| saved_reg *reg; |
| int i; |
| |
| cached_frame |
| = ((cached_frame_info *) |
| xmalloc (sizeof (*cached_frame) |
| + reg_count * sizeof (cached_frame->reg[0]))); |
| cached_frame->gdbarch = gdbarch; |
| cached_frame->frame_id = unwind_info->frame_id; |
| cached_frame->reg_count = reg_count; |
| |
| /* Populate registers array. */ |
| for (i = 0; VEC_iterate (saved_reg, unwind_info->saved_regs, i, reg); i++) |
| { |
| struct value *value = value_object_to_value (reg->value); |
| size_t data_size = register_size (gdbarch, reg->number); |
| |
| cached_frame->reg[i].number = reg->number; |
| |
| /* `value' validation was done before, just assert. */ |
| gdb_assert (value != NULL); |
| gdb_assert (data_size == TYPE_LENGTH (value_type (value))); |
| gdb_assert (data_size <= MAX_REGISTER_SIZE); |
| |
| memcpy (cached_frame->reg[i].data, value_contents (value), data_size); |
| } |
| } |
| |
| *cache_ptr = cached_frame; |
| return 1; |
| } |
| |
| /* Frame cache release shim. */ |
| |
| static void |
| pyuw_dealloc_cache (struct frame_info *this_frame, void *cache) |
| { |
| TRACE_PY_UNWIND (3, "%s: enter", __FUNCTION__); |
| xfree (cache); |
| } |
| |
| struct pyuw_gdbarch_data_type |
| { |
| /* Has the unwinder shim been prepended? */ |
| int unwinder_registered; |
| }; |
| |
| static void * |
| pyuw_gdbarch_data_init (struct gdbarch *gdbarch) |
| { |
| return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct pyuw_gdbarch_data_type); |
| } |
| |
| /* New inferior architecture callback: register the Python unwinders |
| intermediary. */ |
| |
| static void |
| pyuw_on_new_gdbarch (struct gdbarch *newarch) |
| { |
| struct pyuw_gdbarch_data_type *data |
| = (struct pyuw_gdbarch_data_type *) gdbarch_data (newarch, |
| pyuw_gdbarch_data); |
| |
| if (!data->unwinder_registered) |
| { |
| struct frame_unwind *unwinder |
| = GDBARCH_OBSTACK_ZALLOC (newarch, struct frame_unwind); |
| |
| unwinder->type = NORMAL_FRAME; |
| unwinder->stop_reason = default_frame_unwind_stop_reason; |
| unwinder->this_id = pyuw_this_id; |
| unwinder->prev_register = pyuw_prev_register; |
| unwinder->unwind_data = (const struct frame_data *) newarch; |
| unwinder->sniffer = pyuw_sniffer; |
| unwinder->dealloc_cache = pyuw_dealloc_cache; |
| frame_unwind_prepend_unwinder (newarch, unwinder); |
| data->unwinder_registered = 1; |
| } |
| } |
| |
| /* Initialize unwind machinery. */ |
| |
| int |
| gdbpy_initialize_unwind (void) |
| { |
| int rc; |
| add_setshow_zuinteger_cmd |
| ("py-unwind", class_maintenance, &pyuw_debug, |
| _("Set Python unwinder debugging."), |
| _("Show Python unwinder debugging."), |
| _("When non-zero, Python unwinder debugging is enabled."), |
| NULL, |
| NULL, |
| &setdebuglist, &showdebuglist); |
| pyuw_gdbarch_data |
| = gdbarch_data_register_post_init (pyuw_gdbarch_data_init); |
| observer_attach_architecture_changed (pyuw_on_new_gdbarch); |
| |
| if (PyType_Ready (&pending_frame_object_type) < 0) |
| return -1; |
| rc = gdb_pymodule_addobject (gdb_module, "PendingFrame", |
| (PyObject *) &pending_frame_object_type); |
| if (rc) |
| return rc; |
| |
| if (PyType_Ready (&unwind_info_object_type) < 0) |
| return -1; |
| return gdb_pymodule_addobject (gdb_module, "UnwindInfo", |
| (PyObject *) &unwind_info_object_type); |
| } |
| |
| static PyMethodDef pending_frame_object_methods[] = |
| { |
| { "read_register", pending_framepy_read_register, METH_VARARGS, |
| "read_register (REG) -> gdb.Value\n" |
| "Return the value of the REG in the frame." }, |
| { "create_unwind_info", |
| pending_framepy_create_unwind_info, METH_VARARGS, |
| "create_unwind_info (FRAME_ID) -> gdb.UnwindInfo\n" |
| "Construct UnwindInfo for this PendingFrame, using FRAME_ID\n" |
| "to identify it." }, |
| {NULL} /* Sentinel */ |
| }; |
| |
| PyTypeObject pending_frame_object_type = |
| { |
| PyVarObject_HEAD_INIT (NULL, 0) |
| "gdb.PendingFrame", /* tp_name */ |
| sizeof (pending_frame_object), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| 0, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_compare */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| 0, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| pending_framepy_str, /* tp_str */ |
| 0, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT, /* tp_flags */ |
| "GDB PendingFrame object", /* tp_doc */ |
| 0, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| 0, /* tp_iter */ |
| 0, /* tp_iternext */ |
| pending_frame_object_methods, /* tp_methods */ |
| 0, /* tp_members */ |
| 0, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| 0, /* tp_dictoffset */ |
| 0, /* tp_init */ |
| 0, /* tp_alloc */ |
| }; |
| |
| static PyMethodDef unwind_info_object_methods[] = |
| { |
| { "add_saved_register", |
| unwind_infopy_add_saved_register, METH_VARARGS, |
| "add_saved_register (REG, VALUE) -> None\n" |
| "Set the value of the REG in the previous frame to VALUE." }, |
| { NULL } /* Sentinel */ |
| }; |
| |
| PyTypeObject unwind_info_object_type = |
| { |
| PyVarObject_HEAD_INIT (NULL, 0) |
| "gdb.UnwindInfo", /* tp_name */ |
| sizeof (unwind_info_object), /* tp_basicsize */ |
| 0, /* tp_itemsize */ |
| unwind_infopy_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| 0, /* tp_compare */ |
| 0, /* tp_repr */ |
| 0, /* tp_as_number */ |
| 0, /* tp_as_sequence */ |
| 0, /* tp_as_mapping */ |
| 0, /* tp_hash */ |
| 0, /* tp_call */ |
| unwind_infopy_str, /* tp_str */ |
| 0, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| 0, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| "GDB UnwindInfo object", /* tp_doc */ |
| 0, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| 0, /* tp_iter */ |
| 0, /* tp_iternext */ |
| unwind_info_object_methods, /* tp_methods */ |
| 0, /* tp_members */ |
| 0, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| 0, /* tp_dictoffset */ |
| 0, /* tp_init */ |
| 0, /* tp_alloc */ |
| }; |
