binutils-gdb/gdb/python/py-event.c

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/* Python interface to inferior events.
Copyright (C) 2009-2014 Free Software Foundation, Inc.
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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"
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#include "py-event.h"
void
evpy_dealloc (PyObject *self)
{
Py_XDECREF (((event_object *) self)->dict);
Add support for Python 3. * NEWS: Mention Python 3 support. * varobj.c (value_get_print_value): Use python_string_to_target_string. * python/py-block.c: Use PyVarObject_HEAD_INIT in initialization of type objects. * python/py-breakpoint.c: Ditto. * python/py-cmd.c: Ditto. * python/py-event.c: Ditto. * python/py-event.h: Ditto. * python/py-evtregistry.c: Ditto. * python/py-finishbreakpoint.c: Ditto. * python/py-frame.c: Ditto. * python/py-function.c: Ditto. * python/py-infthread.c: Ditto. * python/py-lazy-string.c: Ditto. * python/py-progspace.c: Ditto. * /python/py-symbol.c: Ditto. * python/py-evts.c: (gdbpy_initialize_py_events): Add module initialization for Python 3. * python/py-inferior.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (infpy_read_memory): Return memoryview object if Python 3. (infpy_write_memory): Use "s*" operand parsing code for Python 3. (infpy_search_memory): Ditto. (get_buffer): New function for Python 3. * python/py-objfile.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (objfpy_dealloc): Use Py_TYPE to call tp_free. * python/py-param.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (get_attr): Use PyUnicode_CompareWithASCIIString if Python 3. (set_attr): Ditto. * python/py-prettyprint.c (print_string_repr): use PyBytes methods instead of PyString methods if Python 3. (print_children): Skip push_dummy_python_frame call if Python 3. * python/py-symtab.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (salpy_dealloc): Use Py_TYPE to call tp_free. * python/py-type.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (field_dealloc): Use Py_TYPE to call tp_free. (typy_dealloc): Ditto. (type_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/py-utils.c (python_string_to_unicode): Omit non-Unicode string case for Python 3. (unicode_to_encoded_python_string): Shorten code (no functional change). (python_string_to_target_python_string): Comment that in Python 3 returned value is a Python "bytes" type. (gdbpy_is_string): Omit non-Unicode string check in Python 3. (gdb_py_object_from_longest): Omit non-long integer case in Python 3. (gdb_py_object_from_ulongest): Ditto. * python/py-value.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (valpy_dealloc): Use Py_TYPE to call tp_free. (valpy_int): Omit function if Python 3. (convert_value_from_python): Use "%S" format (Python object as a string) if Python 3. (value_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/python-config.py: Adjust syntax for Python 3 compatibility. Include "sys.abiflags" string as part of python library name, if that attribute exists (Python 3). * python/python-internal.h (IS_PY3): Define if Python 3. (Py_TPFLAGS_HAVE_ITER, Py_TPFLAGS_CHECKTYPES): Define with placeholder value if Python 3. (PyInt_Check, PyInt_FromLong, PyInt_AsLong, PyString_FromString, PyString_Decode, PyString_FromFormat, PyString_Check): Define as analogous Python 3 API function if Python 3. (PyVarObject_HEAD_INIT): Define if not already defined. (Py_TYPE): Ditto. * python/python.c (eval_python_command): Omit Py_FlushLine call if Python 3. Check return values of all Python API calls for error. Supply dummy "python" and "python-interactive" commands if Python initialization failed. (_initialize_python): Convert argc to wchar_t** if Python 3. Add module initialization for Python 3. (finish_python_initialization): Pass wchar_t * argument to PySys_SetPath if Python 3. * python/lib/gdb/__init__.py: Define "reload" if Python 3. (_GdbFile): New class for common output file behavior. (GdbOutFile): Subclass from _GdbFile. (GdbOutputErrorFile): Ditto. (auto_load_packages): Adjust syntax for Python 3 compatibility. * python/lib/gdb/printing.py: Define basestr and int if Python 3. * python/lib/gdb/prompt.py: Use sorted() function rather than sort() method. * python/lib/gdb/command/explore.py: Define raw_input if Python 3. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/pretty_printers.py: Use sorted() function rather than sort() method. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/type_printers.py: Ditto. * doc/gdb.texinfo (Inferior.read_memory): Mention that the return value is a memoryview object if Python 3.
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Py_TYPE (self)->tp_free (self);
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}
PyObject *
create_event_object (PyTypeObject *py_type)
{
event_object *event_obj;
event_obj = PyObject_New (event_object, py_type);
if (!event_obj)
goto fail;
event_obj->dict = PyDict_New ();
if (!event_obj->dict)
goto fail;
return (PyObject*) event_obj;
fail:
Py_XDECREF (event_obj);
return NULL;
}
/* Add the attribute ATTR to the event object EVENT. In
python this attribute will be accessible by the name NAME.
returns 0 if the operation succeeds and -1 otherwise. This
function acquires a new reference to ATTR. */
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int
evpy_add_attribute (PyObject *event, char *name, PyObject *attr)
{
return PyObject_SetAttrString (event, name, attr);
}
/* Initialize the Python event code. */
* python/py-arch.c (gdbpy_initialize_arch): Return 'int'. Check errors. * python/py-auto-load.c (gdbpy_initialize_auto_load): Return 'int'. * python/py-block.c (gdbpy_initialize_blocks): Return 'int'. Check errors. * python/py-breakpoint.c (gdbpy_initialize_breakpoints): Return 'int'. Check errors. * python/py-cmd.c (gdbpy_initialize_commands): Return 'int'. Check errors. * python/py-event.c (gdbpy_initialize_event): Return 'int'. Check errors. * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Change generated init function to return 'int'. * python/py-evtregistry.c (gdbpy_initialize_eventregistry): Return 'int'. Check errors. * python/py-evts.c (gdbpy_initialize_py_events): Return 'int'. Check errors. * python/py-finishbreakpoint.c (gdbpy_initialize_finishbreakpoints): Return 'int'. Check errors. * python/py-frame.c (gdbpy_initialize_frames): Return 'int'. Check errors. * python/py-function.c (gdbpy_initialize_functions): Return 'int'. Check errors. * python/py-gdb-readline.c (gdbpy_initialize_gdb_readline): Check errors. * python/py-inferior.c (gdbpy_initialize_inferior): Return 'int'. Check errors. * python/py-infthread.c (gdbpy_initialize_thread): Return 'int'. Check errors. * python/py-lazy-string.c (gdbpy_initialize_lazy_string): Return 'int'. Check errors. * python/py-objfile.c (gdbpy_initialize_objfile): Return 'int'. Check errors. * python/py-param.c (gdbpy_initialize_parameters): Return 'int'. Check errors. * python/py-progspace.c (gdbpy_initialize_pspace): Return 'int'. Check errors. * python/py-symbol.c (gdbpy_initialize_symbols): Return 'int'. Check errors. * python/py-symtab.c (gdbpy_initialize_symtabs): Return 'int'. Check errors. * python/py-type.c (gdbpy_initialize_types): Return 'int'. Check errors. * python/py-value.c (gdbpy_initialize_values): Return 'int'. Check errors. * python/python-internal.h (gdbpy_initialize_auto_load, gdbpy_initialize_values, gdbpy_initialize_frames, gdbpy_initialize_symtabs, gdbpy_initialize_commands, gdbpy_initialize_symbols, gdbpy_initialize_symtabs, gdbpy_initialize_blocks, gdbpy_initialize_types, gdbpy_initialize_functions, gdbpy_initialize_pspace, gdbpy_initialize_objfile, gdbpy_initialize_breakpoints, gdbpy_initialize_finishbreakpoints, gdbpy_initialize_lazy_string, gdbpy_initialize_parameters, gdbpy_initialize_thread, gdbpy_initialize_inferior, gdbpy_initialize_eventregistry, gdbpy_initialize_event, gdbpy_initialize_py_events, gdbpy_initialize_stop_event, gdbpy_initialize_signal_event, gdbpy_initialize_breakpoint_event, gdbpy_initialize_continue_event, gdbpy_initialize_exited_event, gdbpy_initialize_thread_event, gdbpy_initialize_new_objfile_event, gdbpy_initialize_arch): Update. Use CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION. * python/python.c (gdb_python_initialized): New global. (gdbpy_initialize_events): Return 'int'. Check errors. (_initialize_python): Check errors. Set gdb_python_initialized.
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int
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gdbpy_initialize_event (void)
{
* python/py-arch.c (gdbpy_initialize_arch): Return 'int'. Check errors. * python/py-auto-load.c (gdbpy_initialize_auto_load): Return 'int'. * python/py-block.c (gdbpy_initialize_blocks): Return 'int'. Check errors. * python/py-breakpoint.c (gdbpy_initialize_breakpoints): Return 'int'. Check errors. * python/py-cmd.c (gdbpy_initialize_commands): Return 'int'. Check errors. * python/py-event.c (gdbpy_initialize_event): Return 'int'. Check errors. * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Change generated init function to return 'int'. * python/py-evtregistry.c (gdbpy_initialize_eventregistry): Return 'int'. Check errors. * python/py-evts.c (gdbpy_initialize_py_events): Return 'int'. Check errors. * python/py-finishbreakpoint.c (gdbpy_initialize_finishbreakpoints): Return 'int'. Check errors. * python/py-frame.c (gdbpy_initialize_frames): Return 'int'. Check errors. * python/py-function.c (gdbpy_initialize_functions): Return 'int'. Check errors. * python/py-gdb-readline.c (gdbpy_initialize_gdb_readline): Check errors. * python/py-inferior.c (gdbpy_initialize_inferior): Return 'int'. Check errors. * python/py-infthread.c (gdbpy_initialize_thread): Return 'int'. Check errors. * python/py-lazy-string.c (gdbpy_initialize_lazy_string): Return 'int'. Check errors. * python/py-objfile.c (gdbpy_initialize_objfile): Return 'int'. Check errors. * python/py-param.c (gdbpy_initialize_parameters): Return 'int'. Check errors. * python/py-progspace.c (gdbpy_initialize_pspace): Return 'int'. Check errors. * python/py-symbol.c (gdbpy_initialize_symbols): Return 'int'. Check errors. * python/py-symtab.c (gdbpy_initialize_symtabs): Return 'int'. Check errors. * python/py-type.c (gdbpy_initialize_types): Return 'int'. Check errors. * python/py-value.c (gdbpy_initialize_values): Return 'int'. Check errors. * python/python-internal.h (gdbpy_initialize_auto_load, gdbpy_initialize_values, gdbpy_initialize_frames, gdbpy_initialize_symtabs, gdbpy_initialize_commands, gdbpy_initialize_symbols, gdbpy_initialize_symtabs, gdbpy_initialize_blocks, gdbpy_initialize_types, gdbpy_initialize_functions, gdbpy_initialize_pspace, gdbpy_initialize_objfile, gdbpy_initialize_breakpoints, gdbpy_initialize_finishbreakpoints, gdbpy_initialize_lazy_string, gdbpy_initialize_parameters, gdbpy_initialize_thread, gdbpy_initialize_inferior, gdbpy_initialize_eventregistry, gdbpy_initialize_event, gdbpy_initialize_py_events, gdbpy_initialize_stop_event, gdbpy_initialize_signal_event, gdbpy_initialize_breakpoint_event, gdbpy_initialize_continue_event, gdbpy_initialize_exited_event, gdbpy_initialize_thread_event, gdbpy_initialize_new_objfile_event, gdbpy_initialize_arch): Update. Use CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION. * python/python.c (gdb_python_initialized): New global. (gdbpy_initialize_events): Return 'int'. Check errors. (_initialize_python): Check errors. Set gdb_python_initialized.
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return gdbpy_initialize_event_generic (&event_object_type,
"Event");
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}
/* Initialize the given event type. If BASE is not NULL it will
be set as the types base.
Returns 0 if initialization was successful -1 otherwise. */
int
gdbpy_initialize_event_generic (PyTypeObject *type,
char *name)
{
if (PyType_Ready (type) < 0)
return -1;
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* python/py-arch.c (gdbpy_initialize_arch): Use gdb_pymodule_addobject. * python/py-block.c (gdbpy_initialize_blocks): Use gdb_pymodule_addobject. * python/py-breakpoint.c (gdbpy_initialize_breakpoints): Use gdb_pymodule_addobject. * python/py-cmd.c (gdbpy_initialize_breakpoints): Use gdb_pymodule_addobject. * python/py-event.c (gdbpy_initialize_event_generic): Use gdb_pymodule_addobject. * python/py-evtregistry.c (gdbpy_initialize_eventregistry): Use gdb_pymodule_addobject. * python/py-evts.c (add_new_registry): Use gdb_pymodule_addobject. (gdbpy_initialize_py_events): Likewise. * python/py-finishbreakpoint.c (gdbpy_initialize_finishbreakpoints): Use gdb_pymodule_addobject. * python/py-frame.c (gdbpy_initialize_frames): Use gdb_pymodule_addobject. * python/py-function.c (gdbpy_initialize_functions): Use gdb_pymodule_addobject. * python/py-inferior.c (gdbpy_initialize_inferior): Use gdb_pymodule_addobject. * python/py-infthread.c (gdbpy_initialize_thread): Use gdb_pymodule_addobject. * python/py-objfile.c (gdbpy_initialize_objfile): Use gdb_pymodule_addobject. * python/py-param.c (gdbpy_initialize_parameters): Use gdb_pymodule_addobject. * python/py-progspace.c (gdbpy_initialize_pspace): Use gdb_pymodule_addobject. * python/py-symbol.c (gdbpy_initialize_symbols): Use gdb_pymodule_addobject. * python/py-symtab.c (gdbpy_initialize_symtabs): Use gdb_pymodule_addobject. * python/py-type.c (gdbpy_initialize_types): Use gdb_pymodule_addobject. * python/py-utils.c (gdb_pymodule_addobject): New function. * python/py-value.c (gdbpy_initialize_values): Use gdb_pymodule_addobject. * python/python-internal.h (gdb_pymodule_addobject): Declare. * python/python.c (_initialize_python): Use gdb_pymodule_addobject.
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return gdb_pymodule_addobject (gdb_module, name, (PyObject *) type);
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}
/* Notify the list of listens that the given EVENT has occurred.
returns 0 if emit is successful -1 otherwise. */
int
evpy_emit_event (PyObject *event,
eventregistry_object *registry)
{
PyObject *callback_list_copy = NULL;
Py_ssize_t i;
/* Create a copy of call back list and use that for
notifying listeners to avoid skipping callbacks
in the case of a callback being disconnected during
a notification. */
callback_list_copy = PySequence_List (registry->callbacks);
if (!callback_list_copy)
goto fail;
for (i = 0; i < PyList_Size (callback_list_copy); i++)
{
PyObject *func = PyList_GetItem (callback_list_copy, i);
PyObject *func_result;
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if (func == NULL)
goto fail;
func_result = PyObject_CallFunctionObjArgs (func, event, NULL);
if (func_result == NULL)
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{
/* Print the trace here, but keep going -- we want to try to
call all of the callbacks even if one is broken. */
gdbpy_print_stack ();
}
else
{
Py_DECREF (func_result);
}
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}
Py_XDECREF (callback_list_copy);
Py_XDECREF (event);
return 0;
fail:
gdbpy_print_stack ();
Py_XDECREF (callback_list_copy);
Py_XDECREF (event);
return -1;
}
static PyGetSetDef event_object_getset[] =
{
{ "__dict__", gdb_py_generic_dict, NULL,
"The __dict__ for this event.", &event_object_type },
{ NULL }
};
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PyTypeObject event_object_type =
{
Add support for Python 3. * NEWS: Mention Python 3 support. * varobj.c (value_get_print_value): Use python_string_to_target_string. * python/py-block.c: Use PyVarObject_HEAD_INIT in initialization of type objects. * python/py-breakpoint.c: Ditto. * python/py-cmd.c: Ditto. * python/py-event.c: Ditto. * python/py-event.h: Ditto. * python/py-evtregistry.c: Ditto. * python/py-finishbreakpoint.c: Ditto. * python/py-frame.c: Ditto. * python/py-function.c: Ditto. * python/py-infthread.c: Ditto. * python/py-lazy-string.c: Ditto. * python/py-progspace.c: Ditto. * /python/py-symbol.c: Ditto. * python/py-evts.c: (gdbpy_initialize_py_events): Add module initialization for Python 3. * python/py-inferior.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (infpy_read_memory): Return memoryview object if Python 3. (infpy_write_memory): Use "s*" operand parsing code for Python 3. (infpy_search_memory): Ditto. (get_buffer): New function for Python 3. * python/py-objfile.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (objfpy_dealloc): Use Py_TYPE to call tp_free. * python/py-param.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (get_attr): Use PyUnicode_CompareWithASCIIString if Python 3. (set_attr): Ditto. * python/py-prettyprint.c (print_string_repr): use PyBytes methods instead of PyString methods if Python 3. (print_children): Skip push_dummy_python_frame call if Python 3. * python/py-symtab.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (salpy_dealloc): Use Py_TYPE to call tp_free. * python/py-type.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (field_dealloc): Use Py_TYPE to call tp_free. (typy_dealloc): Ditto. (type_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/py-utils.c (python_string_to_unicode): Omit non-Unicode string case for Python 3. (unicode_to_encoded_python_string): Shorten code (no functional change). (python_string_to_target_python_string): Comment that in Python 3 returned value is a Python "bytes" type. (gdbpy_is_string): Omit non-Unicode string check in Python 3. (gdb_py_object_from_longest): Omit non-long integer case in Python 3. (gdb_py_object_from_ulongest): Ditto. * python/py-value.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (valpy_dealloc): Use Py_TYPE to call tp_free. (valpy_int): Omit function if Python 3. (convert_value_from_python): Use "%S" format (Python object as a string) if Python 3. (value_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/python-config.py: Adjust syntax for Python 3 compatibility. Include "sys.abiflags" string as part of python library name, if that attribute exists (Python 3). * python/python-internal.h (IS_PY3): Define if Python 3. (Py_TPFLAGS_HAVE_ITER, Py_TPFLAGS_CHECKTYPES): Define with placeholder value if Python 3. (PyInt_Check, PyInt_FromLong, PyInt_AsLong, PyString_FromString, PyString_Decode, PyString_FromFormat, PyString_Check): Define as analogous Python 3 API function if Python 3. (PyVarObject_HEAD_INIT): Define if not already defined. (Py_TYPE): Ditto. * python/python.c (eval_python_command): Omit Py_FlushLine call if Python 3. Check return values of all Python API calls for error. Supply dummy "python" and "python-interactive" commands if Python initialization failed. (_initialize_python): Convert argc to wchar_t** if Python 3. Add module initialization for Python 3. (finish_python_initialization): Pass wchar_t * argument to PySys_SetPath if Python 3. * python/lib/gdb/__init__.py: Define "reload" if Python 3. (_GdbFile): New class for common output file behavior. (GdbOutFile): Subclass from _GdbFile. (GdbOutputErrorFile): Ditto. (auto_load_packages): Adjust syntax for Python 3 compatibility. * python/lib/gdb/printing.py: Define basestr and int if Python 3. * python/lib/gdb/prompt.py: Use sorted() function rather than sort() method. * python/lib/gdb/command/explore.py: Define raw_input if Python 3. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/pretty_printers.py: Use sorted() function rather than sort() method. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/type_printers.py: Ditto. * doc/gdb.texinfo (Inferior.read_memory): Mention that the return value is a memoryview object if Python 3.
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PyVarObject_HEAD_INIT (NULL, 0)
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"gdb.Event", /* tp_name */
sizeof (event_object), /* tp_basicsize */
0, /* tp_itemsize */
evpy_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 */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
"GDB event object", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
0, /* tp_members */
event_object_getset, /* tp_getset */
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0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
offsetof (event_object, dict), /* tp_dictoffset */
0, /* tp_init */
0 /* tp_alloc */
};