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binutils-gdb/gdb/python/py-param.c
Simon Marchi e0700ba44c gdb: make string-like set show commands use std::string variable 
String-like settings (var_string, var_filename, var_optional_filename,
var_string_noescape) currently take a pointer to a `char *` storage
variable (typically global) that holds the setting's value.  I'd like to
"mordernize" this by changing them to use an std::string for storage.

An obvious reason is that string operations on std::string are often
easier to write than with C strings.  And they avoid having to do any
manual memory management.

Another interesting reason is that, with `char *`, nullptr and an empty
string often both have the same meaning of "no value".  String settings
are initially nullptr (unless initialized otherwise).  But when doing
"set foo" (where `foo` is a string setting), the setting now points to
an empty string.  For example, solib_search_path is nullptr at startup,
but points to an empty string after doing "set solib-search-path".  This
leads to some code that needs to check for both to check for "no value".
Or some code that converts back and forth between NULL and "" when
getting or setting the value.  I find this very error-prone, because it
is very easy to forget one or the other.  With std::string, we at least
know that the variable is not "NULL".  There is only one way of
representing an empty string setting, that is with an empty string.

I was wondering whether the distinction between NULL and "" would be
important for some setting, but it doesn't seem so.  If that ever
happens, it would be more C++-y and self-descriptive to use
optional<string> anyway.

Actually, there's one spot where this distinction mattered, it's in
init_history, for the test gdb.base/gdbinit-history.exp.  init_history
sets the history filename to the default ".gdb_history" if it sees that
the setting was never set - if history_filename is nullptr.  If
history_filename is an empty string, it means the setting was explicitly
cleared, so it leaves it as-is.  With the change to std::string, this
distinction doesn't exist anymore.  This can be fixed by moving the code
that chooses a good default value for history_filename to
_initialize_top.  This is ran before -ex commands are processed, so an
-ex command can then clear that value if needed (what
gdb.base/gdbinit-history.exp tests).

Another small improvement, in my opinion is that we can now easily
give string parameters initial values, by simply initializing the global
variables, instead of xstrdup-ing it in the _initialize function.

In Python and Guile, when registering a string-like parameter, we
allocate (with new) an std::string that is owned by the param_smob (in
Guile) and the parmpy_object (in Python) objects.

This patch started by changing all relevant add_setshow_* commands to
take an `std::string *` instead of a `char **` and fixing everything
that failed to build.  That includes of course all string setting
variable and their uses.

string_option_def now uses an std::string also, because there's a
connection between options and settings (see
add_setshow_cmds_for_options).

The add_path function in source.c is really complex and twisted, I'd
rather not try to change it to work on an std::string right now.
Instead, I added an overload that copies the std:string to a `char *`
and back.  This means more copying, but this is not used in a hot path
at all, so I think it is acceptable.

Change-Id: I92c50a1bdd8307141cdbacb388248e4e4fc08c93
Co-authored-by: Lancelot SIX <lsix@lancelotsix.com>
2021-10-03 17:53:16 +01:00

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/* GDB parameters implemented in Python
Copyright (C) 2008-2021 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 "value.h"
#include "python-internal.h"
#include "charset.h"
#include "gdbcmd.h"
#include "cli/cli-decode.h"
#include "completer.h"
#include "language.h"
#include "arch-utils.h"
/* Parameter constants and their values. */
static struct {
const char *name;
int value;
} parm_constants[] =
{
{ "PARAM_BOOLEAN", var_boolean }, /* ARI: var_boolean */
{ "PARAM_AUTO_BOOLEAN", var_auto_boolean },
{ "PARAM_UINTEGER", var_uinteger },
{ "PARAM_INTEGER", var_integer },
{ "PARAM_STRING", var_string },
{ "PARAM_STRING_NOESCAPE", var_string_noescape },
{ "PARAM_OPTIONAL_FILENAME", var_optional_filename },
{ "PARAM_FILENAME", var_filename },
{ "PARAM_ZINTEGER", var_zinteger },
{ "PARAM_ZUINTEGER", var_zuinteger },
{ "PARAM_ZUINTEGER_UNLIMITED", var_zuinteger_unlimited },
{ "PARAM_ENUM", var_enum },
{ NULL, 0 }
};
/* A union that can hold anything described by enum var_types. */
union parmpy_variable
{
/* Hold a boolean value. */
bool boolval;
/* Hold an integer value. */
int intval;
/* Hold an auto_boolean. */
enum auto_boolean autoboolval;
/* Hold an unsigned integer value, for uinteger. */
unsigned int uintval;
/* Hold a string, for the various string types. The std::string is
new-ed. */
std::string *stringval;
/* Hold a string, for enums. */
const char *cstringval;
};
/* A GDB parameter. */
struct parmpy_object
{
PyObject_HEAD
/* The type of the parameter. */
enum var_types type;
/* The value of the parameter. */
union parmpy_variable value;
/* For an enum command, the possible values. The vector is
allocated with xmalloc, as is each element. It is
NULL-terminated. */
const char **enumeration;
};
/* Wraps a setting around an existing parmpy_object. This abstraction
is used to manipulate the value in S->VALUE in a type safe manner using
the setting interface. */
static setting
make_setting (parmpy_object *s)
{
if (var_type_uses<bool> (s->type))
return setting (s->type, &s->value.boolval);
else if (var_type_uses<int> (s->type))
return setting (s->type, &s->value.intval);
else if (var_type_uses<auto_boolean> (s->type))
return setting (s->type, &s->value.autoboolval);
else if (var_type_uses<unsigned int> (s->type))
return setting (s->type, &s->value.uintval);
else if (var_type_uses<std::string> (s->type))
return setting (s->type, s->value.stringval);
else if (var_type_uses<const char *> (s->type))
return setting (s->type, &s->value.cstringval);
else
gdb_assert_not_reached ("unhandled var type");
}
extern PyTypeObject parmpy_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("parmpy_object");
/* Some handy string constants. */
static PyObject *set_doc_cst;
static PyObject *show_doc_cst;
/* Get an attribute. */
static PyObject *
get_attr (PyObject *obj, PyObject *attr_name)
{
if (PyString_Check (attr_name)
#ifdef IS_PY3K
&& ! PyUnicode_CompareWithASCIIString (attr_name, "value"))
#else
&& ! strcmp (PyString_AsString (attr_name), "value"))
#endif
{
parmpy_object *self = (parmpy_object *) obj;
return gdbpy_parameter_value (make_setting (self));
}
return PyObject_GenericGetAttr (obj, attr_name);
}
/* Set a parameter value from a Python value. Return 0 on success. Returns
-1 on error, with a python exception set. */
static int
set_parameter_value (parmpy_object *self, PyObject *value)
{
int cmp;
switch (self->type)
{
case var_string:
case var_string_noescape:
case var_optional_filename:
case var_filename:
if (! gdbpy_is_string (value)
&& (self->type == var_filename
|| value != Py_None))
{
PyErr_SetString (PyExc_RuntimeError,
_("String required for filename."));
return -1;
}
if (value == Py_None)
self->value.stringval->clear ();
else
{
gdb::unique_xmalloc_ptr<char>
string (python_string_to_host_string (value));
if (string == NULL)
return -1;
*self->value.stringval = string.get ();
}
break;
case var_enum:
{
int i;
if (! gdbpy_is_string (value))
{
PyErr_SetString (PyExc_RuntimeError,
_("ENUM arguments must be a string."));
return -1;
}
gdb::unique_xmalloc_ptr<char>
str (python_string_to_host_string (value));
if (str == NULL)
return -1;
for (i = 0; self->enumeration[i]; ++i)
if (! strcmp (self->enumeration[i], str.get ()))
break;
if (! self->enumeration[i])
{
PyErr_SetString (PyExc_RuntimeError,
_("The value must be member of an enumeration."));
return -1;
}
self->value.cstringval = self->enumeration[i];
break;
}
case var_boolean:
if (! PyBool_Check (value))
{
PyErr_SetString (PyExc_RuntimeError,
_("A boolean argument is required."));
return -1;
}
cmp = PyObject_IsTrue (value);
if (cmp < 0)
return -1;
self->value.boolval = cmp;
break;
case var_auto_boolean:
if (! PyBool_Check (value) && value != Py_None)
{
PyErr_SetString (PyExc_RuntimeError,
_("A boolean or None is required"));
return -1;
}
if (value == Py_None)
self->value.autoboolval = AUTO_BOOLEAN_AUTO;
else
{
cmp = PyObject_IsTrue (value);
if (cmp < 0 )
return -1;
if (cmp == 1)
self->value.autoboolval = AUTO_BOOLEAN_TRUE;
else
self->value.autoboolval = AUTO_BOOLEAN_FALSE;
}
break;
case var_integer:
case var_zinteger:
case var_uinteger:
case var_zuinteger:
case var_zuinteger_unlimited:
{
long l;
int ok;
if (! PyInt_Check (value))
{
PyErr_SetString (PyExc_RuntimeError,
_("The value must be integer."));
return -1;
}
if (! gdb_py_int_as_long (value, &l))
return -1;
switch (self->type)
{
case var_uinteger:
if (l == 0)
l = UINT_MAX;
/* Fall through. */
case var_zuinteger:
ok = (l >= 0 && l <= UINT_MAX);
break;
case var_zuinteger_unlimited:
ok = (l >= -1 && l <= INT_MAX);
break;
case var_integer:
ok = (l >= INT_MIN && l <= INT_MAX);
if (l == 0)
l = INT_MAX;
break;
case var_zinteger:
ok = (l >= INT_MIN && l <= INT_MAX);
break;
default:
gdb_assert_not_reached ("unknown var_ constant");
}
if (! ok)
{
PyErr_SetString (PyExc_RuntimeError,
_("Range exceeded."));
return -1;
}
if (self->type == var_uinteger || self->type == var_zuinteger)
self->value.uintval = (unsigned) l;
else
self->value.intval = (int) l;
break;
}
default:
PyErr_SetString (PyExc_RuntimeError,
_("Unhandled type in parameter value."));
return -1;
}
return 0;
}
/* Set an attribute. Returns -1 on error, with a python exception set. */
static int
set_attr (PyObject *obj, PyObject *attr_name, PyObject *val)
{
if (PyString_Check (attr_name)
#ifdef IS_PY3K
&& ! PyUnicode_CompareWithASCIIString (attr_name, "value"))
#else
&& ! strcmp (PyString_AsString (attr_name), "value"))
#endif
{
if (!val)
{
PyErr_SetString (PyExc_RuntimeError,
_("Cannot delete a parameter's value."));
return -1;
}
return set_parameter_value ((parmpy_object *) obj, val);
}
return PyObject_GenericSetAttr (obj, attr_name, val);
}
/* A helper function which returns a documentation string for an
object. */
static gdb::unique_xmalloc_ptr<char>
get_doc_string (PyObject *object, PyObject *attr)
{
gdb::unique_xmalloc_ptr<char> result;
if (PyObject_HasAttr (object, attr))
{
gdbpy_ref<> ds_obj (PyObject_GetAttr (object, attr));
if (ds_obj != NULL && gdbpy_is_string (ds_obj.get ()))
{
result = python_string_to_host_string (ds_obj.get ());
if (result == NULL)
gdbpy_print_stack ();
}
}
if (! result)
result.reset (xstrdup (_("This command is not documented.")));
return result;
}
/* Helper function which will execute a METHOD in OBJ passing the
argument ARG. ARG can be NULL. METHOD should return a Python
string. If this function returns NULL, there has been an error and
the appropriate exception set. */
static gdb::unique_xmalloc_ptr<char>
call_doc_function (PyObject *obj, PyObject *method, PyObject *arg)
{
gdb::unique_xmalloc_ptr<char> data;
gdbpy_ref<> result (PyObject_CallMethodObjArgs (obj, method, arg, NULL));
if (result == NULL)
return NULL;
if (gdbpy_is_string (result.get ()))
{
data = python_string_to_host_string (result.get ());
if (! data)
return NULL;
}
else
{
PyErr_SetString (PyExc_RuntimeError,
_("Parameter must return a string value."));
return NULL;
}
return data;
}
/* A callback function that is registered against the respective
add_setshow_* set_doc prototype. This function calls the Python function
"get_set_string" if it exists, which will return a string. That string
is then printed. If "get_set_string" does not exist, or returns an
empty string, then nothing is printed. */
static void
get_set_value (const char *args, int from_tty,
struct cmd_list_element *c)
{
PyObject *obj = (PyObject *) c->context ();
gdb::unique_xmalloc_ptr<char> set_doc_string;
gdbpy_enter enter_py (get_current_arch (), current_language);
gdbpy_ref<> set_doc_func (PyString_FromString ("get_set_string"));
if (set_doc_func == NULL)
{
gdbpy_print_stack ();
return;
}
if (PyObject_HasAttr (obj, set_doc_func.get ()))
{
set_doc_string = call_doc_function (obj, set_doc_func.get (), NULL);
if (! set_doc_string)
gdbpy_handle_exception ();
}
const char *str = set_doc_string.get ();
if (str != nullptr && str[0] != '\0')
fprintf_filtered (gdb_stdout, "%s\n", str);
}
/* A callback function that is registered against the respective
add_setshow_* show_doc prototype. This function will either call
the Python function "get_show_string" or extract the Python
attribute "show_doc" and return the contents as a string. If
neither exist, insert a string indicating the Parameter is not
documented. */
static void
get_show_value (struct ui_file *file, int from_tty,
struct cmd_list_element *c,
const char *value)
{
PyObject *obj = (PyObject *) c->context ();
gdb::unique_xmalloc_ptr<char> show_doc_string;
gdbpy_enter enter_py (get_current_arch (), current_language);
gdbpy_ref<> show_doc_func (PyString_FromString ("get_show_string"));
if (show_doc_func == NULL)
{
gdbpy_print_stack ();
return;
}
if (PyObject_HasAttr (obj, show_doc_func.get ()))
{
gdbpy_ref<> val_obj (PyString_FromString (value));
if (val_obj == NULL)
{
gdbpy_print_stack ();
return;
}
show_doc_string = call_doc_function (obj, show_doc_func.get (),
val_obj.get ());
if (! show_doc_string)
{
gdbpy_print_stack ();
return;
}
fprintf_filtered (file, "%s\n", show_doc_string.get ());
}
else
{
/* We have to preserve the existing < GDB 7.3 API. If a
callback function does not exist, then attempt to read the
show_doc attribute. */
show_doc_string = get_doc_string (obj, show_doc_cst);
fprintf_filtered (file, "%s %s\n", show_doc_string.get (), value);
}
}
/* A helper function that dispatches to the appropriate add_setshow
function. */
static void
add_setshow_generic (int parmclass, enum command_class cmdclass,
gdb::unique_xmalloc_ptr<char> cmd_name,
parmpy_object *self,
const char *set_doc, const char *show_doc,
const char *help_doc,
struct cmd_list_element **set_list,
struct cmd_list_element **show_list)
{
set_show_commands commands;
switch (parmclass)
{
case var_boolean:
commands = add_setshow_boolean_cmd (cmd_name.get (), cmdclass,
&self->value.boolval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
break;
case var_auto_boolean:
commands = add_setshow_auto_boolean_cmd (cmd_name.get (), cmdclass,
&self->value.autoboolval,
set_doc, show_doc, help_doc,
get_set_value, get_show_value,
set_list, show_list);
break;
case var_uinteger:
commands = add_setshow_uinteger_cmd (cmd_name.get (), cmdclass,
&self->value.uintval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
break;
case var_integer:
commands = add_setshow_integer_cmd (cmd_name.get (), cmdclass,
&self->value.intval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
break;
case var_string:
commands = add_setshow_string_cmd (cmd_name.get (), cmdclass,
self->value.stringval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
break;
case var_string_noescape:
commands = add_setshow_string_noescape_cmd (cmd_name.get (), cmdclass,
self->value.stringval,
set_doc, show_doc, help_doc,
get_set_value, get_show_value,
set_list, show_list);
break;
case var_optional_filename:
commands = add_setshow_optional_filename_cmd (cmd_name.get (), cmdclass,
self->value.stringval,
set_doc, show_doc, help_doc,
get_set_value,
get_show_value, set_list,
show_list);
break;
case var_filename:
commands = add_setshow_filename_cmd (cmd_name.get (), cmdclass,
self->value.stringval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
break;
case var_zinteger:
commands = add_setshow_zinteger_cmd (cmd_name.get (), cmdclass,
&self->value.intval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
break;
case var_zuinteger:
commands = add_setshow_zuinteger_cmd (cmd_name.get (), cmdclass,
&self->value.uintval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list,
show_list);
break;
case var_zuinteger_unlimited:
commands = add_setshow_zuinteger_unlimited_cmd (cmd_name.get (), cmdclass,
&self->value.intval,
set_doc, show_doc,
help_doc, get_set_value,
get_show_value, set_list,
show_list);
break;
case var_enum:
commands = add_setshow_enum_cmd (cmd_name.get (), cmdclass,
self->enumeration,
&self->value.cstringval, set_doc,
show_doc, help_doc, get_set_value,
get_show_value, set_list, show_list);
/* Initialize the value, just in case. */
self->value.cstringval = self->enumeration[0];
break;
default:
gdb_assert_not_reached ("Unhandled parameter class.");
}
/* Register Python objects in both commands' context. */
commands.set->set_context (self);
commands.show->set_context (self);
/* We (unfortunately) currently leak the command name. */
cmd_name.release ();
}
/* A helper which computes enum values. Returns 1 on success. Returns 0 on
error, with a python exception set. */
static int
compute_enum_values (parmpy_object *self, PyObject *enum_values)
{
Py_ssize_t size, i;
if (! enum_values)
{
PyErr_SetString (PyExc_RuntimeError,
_("An enumeration is required for PARAM_ENUM."));
return 0;
}
if (! PySequence_Check (enum_values))
{
PyErr_SetString (PyExc_RuntimeError,
_("The enumeration is not a sequence."));
return 0;
}
size = PySequence_Size (enum_values);
if (size < 0)
return 0;
if (size == 0)
{
PyErr_SetString (PyExc_RuntimeError,
_("The enumeration is empty."));
return 0;
}
gdb_argv holder (XCNEWVEC (char *, size + 1));
char **enumeration = holder.get ();
for (i = 0; i < size; ++i)
{
gdbpy_ref<> item (PySequence_GetItem (enum_values, i));
if (item == NULL)
return 0;
if (! gdbpy_is_string (item.get ()))
{
PyErr_SetString (PyExc_RuntimeError,
_("The enumeration item not a string."));
return 0;
}
enumeration[i] = python_string_to_host_string (item.get ()).release ();
if (enumeration[i] == NULL)
return 0;
}
self->enumeration = const_cast<const char**> (holder.release ());
return 1;
}
/* Object initializer; sets up gdb-side structures for command.
Use: __init__(NAME, CMDCLASS, PARMCLASS, [ENUM])
NAME is the name of the parameter. It may consist of multiple
words, in which case the final word is the name of the new command,
and earlier words must be prefix commands.
CMDCLASS is the kind of command. It should be one of the COMMAND_*
constants defined in the gdb module.
PARMCLASS is the type of the parameter. It should be one of the
PARAM_* constants defined in the gdb module.
If PARMCLASS is PARAM_ENUM, then the final argument should be a
collection of strings. These strings are the valid values for this
parameter.
The documentation for the parameter is taken from the doc string
for the python class.
Returns -1 on error, with a python exception set. */
static int
parmpy_init (PyObject *self, PyObject *args, PyObject *kwds)
{
parmpy_object *obj = (parmpy_object *) self;
const char *name;
gdb::unique_xmalloc_ptr<char> set_doc, show_doc, doc;
int parmclass, cmdtype;
PyObject *enum_values = NULL;
struct cmd_list_element **set_list, **show_list;
if (! PyArg_ParseTuple (args, "sii|O", &name, &cmdtype, &parmclass,
&enum_values))
return -1;
if (cmdtype != no_class && cmdtype != class_run
&& cmdtype != class_vars && cmdtype != class_stack
&& cmdtype != class_files && cmdtype != class_support
&& cmdtype != class_info && cmdtype != class_breakpoint
&& cmdtype != class_trace && cmdtype != class_obscure
&& cmdtype != class_maintenance)
{
PyErr_Format (PyExc_RuntimeError, _("Invalid command class argument."));
return -1;
}
if (parmclass != var_boolean /* ARI: var_boolean */
&& parmclass != var_auto_boolean
&& parmclass != var_uinteger && parmclass != var_integer
&& parmclass != var_string && parmclass != var_string_noescape
&& parmclass != var_optional_filename && parmclass != var_filename
&& parmclass != var_zinteger && parmclass != var_zuinteger
&& parmclass != var_zuinteger_unlimited && parmclass != var_enum)
{
PyErr_SetString (PyExc_RuntimeError,
_("Invalid parameter class argument."));
return -1;
}
if (enum_values && parmclass != var_enum)
{
PyErr_SetString (PyExc_RuntimeError,
_("Only PARAM_ENUM accepts a fourth argument."));
return -1;
}
if (parmclass == var_enum)
{
if (! compute_enum_values (obj, enum_values))
return -1;
}
else
obj->enumeration = NULL;
obj->type = (enum var_types) parmclass;
memset (&obj->value, 0, sizeof (obj->value));
if (var_type_uses<std::string> (obj->type))
obj->value.stringval = new std::string;
gdb::unique_xmalloc_ptr<char> cmd_name
= gdbpy_parse_command_name (name, &set_list, &setlist);
if (cmd_name == nullptr)
return -1;
cmd_name = gdbpy_parse_command_name (name, &show_list, &showlist);
if (cmd_name == nullptr)
return -1;
set_doc = get_doc_string (self, set_doc_cst);
show_doc = get_doc_string (self, show_doc_cst);
doc = get_doc_string (self, gdbpy_doc_cst);
Py_INCREF (self);
try
{
add_setshow_generic (parmclass, (enum command_class) cmdtype,
std::move (cmd_name), obj,
set_doc.get (), show_doc.get (),
doc.get (), set_list, show_list);
}
catch (const gdb_exception &except)
{
Py_DECREF (self);
gdbpy_convert_exception (except);
return -1;
}
return 0;
}
/* Deallocate function for a gdb.Parameter. */
static void
parmpy_dealloc (PyObject *obj)
{
parmpy_object *parm_obj = (parmpy_object *) obj;
if (var_type_uses<std::string> (parm_obj->type))
delete parm_obj->value.stringval;
}
/* Initialize the 'parameters' module. */
int
gdbpy_initialize_parameters (void)
{
int i;
parmpy_object_type.tp_new = PyType_GenericNew;
if (PyType_Ready (&parmpy_object_type) < 0)
return -1;
set_doc_cst = PyString_FromString ("set_doc");
if (! set_doc_cst)
return -1;
show_doc_cst = PyString_FromString ("show_doc");
if (! show_doc_cst)
return -1;
for (i = 0; parm_constants[i].name; ++i)
{
if (PyModule_AddIntConstant (gdb_module,
parm_constants[i].name,
parm_constants[i].value) < 0)
return -1;
}
return gdb_pymodule_addobject (gdb_module, "Parameter",
(PyObject *) &parmpy_object_type);
}
PyTypeObject parmpy_object_type =
{
PyVarObject_HEAD_INIT (NULL, 0)
"gdb.Parameter", /*tp_name*/
sizeof (parmpy_object), /*tp_basicsize*/
0, /*tp_itemsize*/
parmpy_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*/
get_attr, /*tp_getattro*/
set_attr, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
"GDB parameter 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 */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
parmpy_init, /* tp_init */
0, /* tp_alloc */
};
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