/* gdb commands implemented in Python
- Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2008-2013 Free Software Foundation, Inc.
This file is part of GDB.
/* Python symbol name. */
char *name;
/* Completion function. */
- char **(*completer) (struct cmd_list_element *, char *, char *);
+ completer_ftype *completer;
};
static struct cmdpy_completer completers[] =
typedef struct cmdpy_object cmdpy_object;
-static PyTypeObject cmdpy_object_type;
-
+static PyTypeObject cmdpy_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("cmdpy_object");
/* Constants used by this module. */
static PyObject *invoke_cst;
/* We allocated the name, doc string, and perhaps the prefix
name. */
- xfree (self->name);
+ xfree ((char *) self->name);
xfree (self->doc);
xfree (self->prefixname);
args = "";
argobj = PyUnicode_Decode (args, strlen (args), host_charset (), NULL);
if (! argobj)
- error (_("Could not convert arguments to Python string."));
+ {
+ gdbpy_print_stack ();
+ error (_("Could not convert arguments to Python string."));
+ }
ttyobj = from_tty ? Py_True : Py_False;
Py_INCREF (ttyobj);
/* An error occurred computing the string representation of the
error message. This is rare, but we should inform the user. */
printf_filtered (_("An error occurred in a Python command\n"
- "and then another occurred computing the error message.\n"));
+ "and then another occurred computing the "
+ "error message.\n"));
gdbpy_print_stack ();
}
error (_("Error occurred in Python command."));
}
else
- error ("%s", msg);
+ {
+ Py_XDECREF (ptype);
+ Py_XDECREF (pvalue);
+ Py_XDECREF (ptraceback);
+ error ("%s", msg);
+ }
}
Py_DECREF (result);
}
/* Called by gdb for command completion. */
-static char **
-cmdpy_completer (struct cmd_list_element *command, char *text, char *word)
+
+static VEC (char_ptr) *
+cmdpy_completer (struct cmd_list_element *command,
+ const char *text, const char *word)
{
cmdpy_object *obj = (cmdpy_object *) get_cmd_context (command);
PyObject *textobj, *wordobj, *resultobj = NULL;
- char **result = NULL;
+ VEC (char_ptr) *result = NULL;
struct cleanup *cleanup;
cleanup = ensure_python_env (get_current_arch (), current_language);
if (len < 0)
goto done;
- result = (char **) xmalloc ((len + 1) * sizeof (char *));
for (i = out = 0; i < len; ++i)
{
PyObject *elt = PySequence_GetItem (resultobj, i);
+ char *item;
if (elt == NULL || ! gdbpy_is_string (elt))
{
PyErr_Clear ();
continue;
}
- result[out] = python_string_to_host_string (elt);
- ++out;
+ item = python_string_to_host_string (elt);
+ if (item == NULL)
+ {
+ /* Skip problem elements. */
+ PyErr_Clear ();
+ continue;
+ }
+ VEC_safe_push (char_ptr, result, item);
}
- result[out] = NULL;
}
else if (PyInt_Check (resultobj))
{
/* User code may also return one of the completion constants,
thus requesting that sort of completion. */
- long value = PyInt_AsLong (resultobj);
+ long value;
- if (value >= 0 && value < (long) N_COMPLETERS)
+ if (! gdb_py_int_as_long (resultobj, &value))
+ {
+ /* Ignore. */
+ PyErr_Clear ();
+ }
+ else if (value >= 0 && value < (long) N_COMPLETERS)
result = completers[value].completer (command, text, word);
}
/* Helper for cmdpy_init which locates the command list to use and
pulls out the command name.
- TEXT is the command name list. The final word in the list is the
+ NAME is the command name list. The final word in the list is the
name of the new command. All earlier words must be existing prefix
commands.
This function returns the xmalloc()d name of the new command. On
error sets the Python error and returns NULL. */
+
char *
-gdbpy_parse_command_name (char *text,
+gdbpy_parse_command_name (const char *name,
struct cmd_list_element ***base_list,
struct cmd_list_element **start_list)
{
struct cmd_list_element *elt;
- int len = strlen (text);
+ int len = strlen (name);
int i, lastchar;
char *prefix_text;
+ const char *prefix_text2;
char *result;
/* Skip trailing whitespace. */
- for (i = len - 1; i >= 0 && (text[i] == ' ' || text[i] == '\t'); --i)
+ for (i = len - 1; i >= 0 && (name[i] == ' ' || name[i] == '\t'); --i)
;
if (i < 0)
{
lastchar = i;
/* Find first character of the final word. */
- for (; i > 0 && (isalnum (text[i - 1])
- || text[i - 1] == '-'
- || text[i - 1] == '_');
+ for (; i > 0 && (isalnum (name[i - 1])
+ || name[i - 1] == '-'
+ || name[i - 1] == '_');
--i)
;
result = xmalloc (lastchar - i + 2);
- memcpy (result, &text[i], lastchar - i + 1);
+ memcpy (result, &name[i], lastchar - i + 1);
result[lastchar - i + 1] = '\0';
/* Skip whitespace again. */
- for (--i; i >= 0 && (text[i] == ' ' || text[i] == '\t'); --i)
+ for (--i; i >= 0 && (name[i] == ' ' || name[i] == '\t'); --i)
;
if (i < 0)
{
}
prefix_text = xmalloc (i + 2);
- memcpy (prefix_text, text, i + 1);
+ memcpy (prefix_text, name, i + 1);
prefix_text[i + 1] = '\0';
- text = prefix_text;
- elt = lookup_cmd_1 (&text, *start_list, NULL, 1);
+ prefix_text2 = prefix_text;
+ elt = lookup_cmd_1 (&prefix_text2, *start_list, NULL, 1);
if (!elt || elt == (struct cmd_list_element *) -1)
{
PyErr_Format (PyExc_RuntimeError, _("Could not find command prefix %s."),
If PREFIX is True, then this command is a prefix command.
The documentation for the command is taken from the doc string for
- the python class.
-
-*/
+ the python class. */
+
static int
cmdpy_init (PyObject *self, PyObject *args, PyObject *kw)
{
cmdpy_object *obj = (cmdpy_object *) self;
- char *name;
+ const char *name;
int cmdtype;
int completetype = -1;
char *docstring = NULL;
return -1;
}
- if (! PyArg_ParseTupleAndKeywords (args, kw, "si|iO", keywords, &name, &cmdtype,
+ if (! PyArg_ParseTupleAndKeywords (args, kw, "si|iO",
+ keywords, &name, &cmdtype,
&completetype, &is_prefix))
return -1;
&& cmdtype != class_files && cmdtype != class_support
&& cmdtype != class_info && cmdtype != class_breakpoint
&& cmdtype != class_trace && cmdtype != class_obscure
- && cmdtype != class_maintenance)
+ && cmdtype != class_maintenance && cmdtype != class_user)
{
PyErr_Format (PyExc_RuntimeError, _("Invalid command class argument."));
return -1;
if (completetype < -1 || completetype >= (int) N_COMPLETERS)
{
- PyErr_Format (PyExc_RuntimeError, _("Invalid completion type argument."));
+ PyErr_Format (PyExc_RuntimeError,
+ _("Invalid completion type argument."));
return -1;
}
pfx_name[out] = '\0';
}
else if (cmp < 0)
+ {
+ xfree (cmd_name);
return -1;
+ }
}
if (PyObject_HasAttr (self, gdbpy_doc_cst))
{
PyObject *ds_obj = PyObject_GetAttr (self, gdbpy_doc_cst);
if (ds_obj && gdbpy_is_string (ds_obj))
- docstring = python_string_to_host_string (ds_obj);
+ {
+ docstring = python_string_to_host_string (ds_obj);
+ if (docstring == NULL)
+ {
+ xfree (cmd_name);
+ xfree (pfx_name);
+ Py_DECREF (ds_obj);
+ return -1;
+ }
+ }
+
+ Py_XDECREF (ds_obj);
}
if (! docstring)
docstring = xstrdup (_("This command is not documented."));
\f
/* Initialize the 'commands' code. */
+
void
gdbpy_initialize_commands (void)
{
int i;
+ cmdpy_object_type.tp_new = PyType_GenericNew;
if (PyType_Ready (&cmdpy_object_type) < 0)
return;
|| PyModule_AddIntConstant (gdb_module, "COMMAND_OBSCURE",
class_obscure) < 0
|| PyModule_AddIntConstant (gdb_module, "COMMAND_MAINTENANCE",
- class_maintenance) < 0)
+ class_maintenance) < 0
+ || PyModule_AddIntConstant (gdb_module, "COMMAND_USER", class_user) < 0)
return;
for (i = 0; i < N_COMPLETERS; ++i)
static PyTypeObject cmdpy_object_type =
{
- PyObject_HEAD_INIT (NULL)
- 0, /*ob_size*/
+ PyVarObject_HEAD_INIT (NULL, 0)
"gdb.Command", /*tp_name*/
sizeof (cmdpy_object), /*tp_basicsize*/
0, /*tp_itemsize*/
0, /* tp_dictoffset */
cmdpy_init, /* tp_init */
0, /* tp_alloc */
- PyType_GenericNew /* tp_new */
};
\f
gdbpy_string_to_argv (PyObject *self, PyObject *args)
{
PyObject *py_argv;
- char *input;
+ const char *input;
if (!PyArg_ParseTuple (args, "s", &input))
return NULL;
py_argv = PyList_New (0);
+ if (py_argv == NULL)
+ return NULL;
/* buildargv uses NULL to represent an empty argument list, but we can't use
that in Python. Instead, if ARGS is "" then return an empty list.
if (argp == NULL
|| PyList_Append (py_argv, argp) < 0)
{
- if (argp != NULL)
- {
- Py_DECREF (argp);
- }
+ Py_XDECREF (argp);
Py_DECREF (py_argv);
freeargv (c_argv);
return NULL;
}
+ Py_DECREF (argp);
}
freeargv (c_argv);
projects / deliverable / binutils-gdb.git / blobdiff