/* General python/gdb code
- Copyright (C) 2008-2018 Free Software Foundation, Inc.
+ Copyright (C) 2008-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "cli/cli-decode.h"
#include "charset.h"
#include "top.h"
-#include "solib.h"
#include "python-internal.h"
#include "linespec.h"
#include "source.h"
-#include "version.h"
+#include "gdbsupport/version.h"
#include "target.h"
#include "gdbthread.h"
#include "interps.h"
#include "event-top.h"
-#include "py-ref.h"
#include "py-event.h"
/* True if Python has been successfully initialized, false
gdbpy_before_prompt_hook,
- gdbpy_clone_xmethod_worker_data,
- gdbpy_free_xmethod_worker_data,
gdbpy_get_matching_xmethod_workers,
- gdbpy_get_xmethod_arg_types,
- gdbpy_get_xmethod_result_type,
- gdbpy_invoke_xmethod
};
/* Architecture and language to be used in callbacks from
python_language = language;
/* Save it and ensure ! PyErr_Occurred () afterwards. */
- PyErr_Fetch (&m_error_type, &m_error_value, &m_error_traceback);
+ m_error.emplace ();
}
gdbpy_enter::~gdbpy_enter ()
warning (_("internal error: Unhandled Python exception"));
}
- PyErr_Restore (m_error_type, m_error_value, m_error_traceback);
+ m_error->restore ();
PyGILState_Release (m_state);
python_gdbarch = m_gdbarch;
if (arg && *arg)
{
- int len = strlen (arg);
- char *script = (char *) xmalloc (len + 2);
-
- strcpy (script, arg);
- script[len] = '\n';
- script[len + 1] = '\0';
- err = eval_python_command (script);
- xfree (script);
+ std::string script = std::string (arg) + "\n";
+ err = eval_python_command (script.c_str ());
}
else
{
A FILE * from one runtime does not necessarily operate correctly in
the other runtime.
- To work around this potential issue, we create on Windows hosts the
- FILE object using Python routines, thus making sure that it is
- compatible with the Python library. */
+ To work around this potential issue, we run code in Python to load
+ the script. */
static void
python_run_simple_file (FILE *file, const char *filename)
/* Because we have a string for a filename, and are using Python to
open the file, we need to expand any tilde in the path first. */
gdb::unique_xmalloc_ptr<char> full_path (tilde_expand (filename));
- gdbpy_ref<> python_file (PyFile_FromString (full_path.get (), (char *) "r"));
- if (python_file == NULL)
+
+ if (gdb_python_module == nullptr
+ || ! PyObject_HasAttrString (gdb_python_module, "_execute_file"))
+ error (_("Installation error: gdb._execute_file function is missing"));
+
+ gdbpy_ref<> return_value
+ (PyObject_CallMethod (gdb_python_module, "_execute_file", "s",
+ full_path.get ()));
+ if (return_value == nullptr)
{
- gdbpy_print_stack ();
- error (_("Error while opening file: %s"), full_path.get ());
+ /* Use PyErr_PrintEx instead of gdbpy_print_stack to better match the
+ behavior of the non-Windows codepath. */
+ PyErr_PrintEx(0);
}
- PyRun_SimpleFile (PyFile_AsFile (python_file.get ()), filename);
-
#endif /* _WIN32 */
}
{
int ret;
- if (cmd->body_count != 1)
+ if (cmd->body_list_1 != nullptr)
error (_("Invalid \"python\" block structure."));
gdbpy_enter enter_py (get_current_arch (), current_language);
- std::string script = compute_python_string (cmd->body_list[0]);
+ std::string script = compute_python_string (cmd->body_list_0.get ());
ret = PyRun_SimpleString (script.c_str ());
if (ret)
error (_("Error while executing Python code."));
}
else
{
- command_line_up l = get_command_line (python_control, "");
+ counted_command_line l = get_command_line (python_control, "");
execute_control_command_untraced (l.get ());
}
if (! str)
str = "";
- return host_string_to_python_string (str);
+ return host_string_to_python_string (str).release ();
}
case var_boolean:
Py_RETURN_NONE;
/* Fall through. */
case var_zinteger:
+ case var_zuinteger_unlimited:
return PyLong_FromLong (* (int *) var);
case var_uinteger:
Py_RETURN_NONE;
return PyLong_FromUnsignedLong (val);
}
+
+ case var_zuinteger:
+ {
+ unsigned int val = * (unsigned int *) var;
+ return PyLong_FromUnsignedLong (val);
+ }
}
return PyErr_Format (PyExc_RuntimeError,
static PyObject *
gdbpy_parameter (PyObject *self, PyObject *args)
{
- struct gdb_exception except = exception_none;
struct cmd_list_element *alias, *prefix, *cmd;
const char *arg;
- char *newarg;
int found = -1;
if (! PyArg_ParseTuple (args, "s", &arg))
return NULL;
- newarg = concat ("show ", arg, (char *) NULL);
+ std::string newarg = std::string ("show ") + arg;
- TRY
+ try
{
- found = lookup_cmd_composition (newarg, &alias, &prefix, &cmd);
+ found = lookup_cmd_composition (newarg.c_str (), &alias, &prefix, &cmd);
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
- except = ex;
+ GDB_PY_HANDLE_EXCEPTION (ex);
}
- END_CATCH
- xfree (newarg);
- GDB_PY_HANDLE_EXCEPTION (except);
if (!found)
return PyErr_Format (PyExc_RuntimeError,
_("Could not find parameter `%s'."), arg);
std::string to_string_res;
- TRY
+ scoped_restore preventer = prevent_dont_repeat ();
+
+ try
{
+ gdbpy_allow_threads allow_threads;
+
struct interp *interp;
- scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0);
+ std::string arg_copy = arg;
+ bool first = true;
+ char *save_ptr = nullptr;
+ auto reader
+ = [&] ()
+ {
+ const char *result = strtok_r (first ? &arg_copy[0] : nullptr,
+ "\n", &save_ptr);
+ first = false;
+ return result;
+ };
- scoped_restore save_uiout = make_scoped_restore (¤t_uiout);
+ counted_command_line lines = read_command_lines_1 (reader, 1, nullptr);
- /* Use the console interpreter uiout to have the same print format
- for console or MI. */
- interp = interp_lookup (current_ui, "console");
- current_uiout = interp_ui_out (interp);
+ {
+ scoped_restore save_async = make_scoped_restore (¤t_ui->async,
+ 0);
- scoped_restore preventer = prevent_dont_repeat ();
- if (to_string)
- to_string_res = execute_command_to_string (arg, from_tty);
- else
- execute_command (arg, from_tty);
+ scoped_restore save_uiout = make_scoped_restore (¤t_uiout);
+
+ /* Use the console interpreter uiout to have the same print format
+ for console or MI. */
+ interp = interp_lookup (current_ui, "console");
+ current_uiout = interp->interp_ui_out ();
+
+ if (to_string)
+ to_string_res = execute_control_commands_to_string (lines.get (),
+ from_tty);
+ else
+ execute_control_commands (lines.get (), from_tty);
+ }
+
+ /* Do any commands attached to breakpoint we stopped at. */
+ bpstat_do_actions ();
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
-
- /* Do any commands attached to breakpoint we stopped at. */
- bpstat_do_actions ();
if (to_string)
return PyString_FromString (to_string_res.c_str ());
Py_RETURN_NONE;
}
-/* Implementation of gdb.solib_name (Long) -> String.
- Returns the name of the shared library holding a given address, or None. */
-
-static PyObject *
-gdbpy_solib_name (PyObject *self, PyObject *args)
-{
- char *soname;
- PyObject *str_obj;
- gdb_py_ulongest pc;
-
- if (!PyArg_ParseTuple (args, GDB_PY_LLU_ARG, &pc))
- return NULL;
-
- soname = solib_name_from_address (current_program_space, pc);
- if (soname)
- str_obj = host_string_to_python_string (soname);
- else
- {
- str_obj = Py_None;
- Py_INCREF (Py_None);
- }
-
- return str_obj;
-}
-
/* Implementation of Python rbreak command. Take a REGEX and
optionally a MINSYMS, THROTTLE and SYMTABS keyword and return a
Python list that contains newly set breakpoints that match that
{
const char **files = symtab_paths.vec.data ();
- symbols = search_symbols (regex, FUNCTIONS_DOMAIN,
- symtab_paths.vec.size (), files);
+ symbols = search_symbols (regex, FUNCTIONS_DOMAIN, NULL,
+ symtab_paths.vec.size (), files, false);
}
else
- symbols = search_symbols (regex, FUNCTIONS_DOMAIN, 0, NULL);
+ symbols = search_symbols (regex, FUNCTIONS_DOMAIN, NULL, 0, NULL, false);
/* Count the number of symbols (both symbols and optionally minimal
symbols) so we can correctly check the throttle limit. */
std::vector<symtab_and_line> decoded_sals;
symtab_and_line def_sal;
gdb::array_view<symtab_and_line> sals;
- TRY
+ try
{
if (location != NULL)
{
sals = def_sal;
}
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
/* We know this will always throw. */
gdbpy_convert_exception (ex);
return NULL;
}
- END_CATCH
if (!sals.empty ())
{
}
}
else
- {
- result.reset (Py_None);
- Py_INCREF (Py_None);
- }
+ result = gdbpy_ref<>::new_reference (Py_None);
gdbpy_ref<> return_result (PyTuple_New (2));
if (return_result == NULL)
return NULL;
}
else
- {
- unparsed.reset (Py_None);
- Py_INCREF (Py_None);
- }
+ unparsed = gdbpy_ref<>::new_reference (Py_None);
PyTuple_SetItem (return_result.get (), 0, unparsed.release ());
PyTuple_SetItem (return_result.get (), 1, result.release ());
if (!PyArg_ParseTuple (args, "s", &expr_str))
return NULL;
- TRY
+ try
{
+ gdbpy_allow_threads allow_threads;
result = parse_and_eval (expr_str);
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
return value_to_value_object (result);
}
-/* Implementation of gdb.find_pc_line function.
- Returns the gdb.Symtab_and_line object corresponding to a PC value. */
-
-static PyObject *
-gdbpy_find_pc_line (PyObject *self, PyObject *args)
-{
- gdb_py_ulongest pc_llu;
- PyObject *result = NULL; /* init for gcc -Wall */
-
- if (!PyArg_ParseTuple (args, GDB_PY_LLU_ARG, &pc_llu))
- return NULL;
-
- TRY
- {
- struct symtab_and_line sal;
- CORE_ADDR pc;
-
- pc = (CORE_ADDR) pc_llu;
- sal = find_pc_line (pc, 0);
- result = symtab_and_line_to_sal_object (sal);
- }
- CATCH (except, RETURN_MASK_ALL)
- {
- GDB_PY_HANDLE_EXCEPTION (except);
- }
- END_CATCH
-
- return result;
-}
-
/* Implementation of gdb.invalidate_cached_frames. */
static PyObject *
if (gdbpy_event_list == NULL)
gdbpy_event_list_end = &gdbpy_event_list;
- /* Ignore errors. */
gdbpy_ref<> call_result (PyObject_CallObject (item->event, NULL));
if (call_result == NULL)
- PyErr_Clear ();
+ gdbpy_print_stack ();
Py_DECREF (item->event);
xfree (item);
&stream_type))
return NULL;
- TRY
+ try
{
switch (stream_type)
{
fprintf_filtered (gdb_stdout, "%s", arg);
}
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
GDB_PY_HANDLE_EXCEPTION (except);
}
- END_CATCH
Py_RETURN_NONE;
}
/* PyErr_Print doesn't necessarily end output with a newline.
This works because Python's stdout/stderr is fed through
printf_filtered. */
- TRY
+ try
{
begin_line ();
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
}
- END_CATCH
}
/* Print "message", just error print message. */
else
{
- PyObject *ptype, *pvalue, *ptraceback;
+ gdbpy_err_fetch fetched_error;
- PyErr_Fetch (&ptype, &pvalue, &ptraceback);
+ gdb::unique_xmalloc_ptr<char> msg = fetched_error.to_string ();
+ gdb::unique_xmalloc_ptr<char> type;
+ /* Don't compute TYPE if MSG already indicates that there is an
+ error. */
+ if (msg != NULL)
+ type = fetched_error.type_to_string ();
- /* Fetch the error message contained within ptype, pvalue. */
- gdb::unique_xmalloc_ptr<char>
- msg (gdbpy_exception_to_string (ptype, pvalue));
- gdb::unique_xmalloc_ptr<char> type (gdbpy_obj_to_string (ptype));
-
- TRY
+ try
{
- if (msg == NULL)
+ if (msg == NULL || type == NULL)
{
/* An error occurred computing the string representation of the
error message. */
fprintf_filtered (gdb_stderr,
_("Error occurred computing Python error" \
"message.\n"));
+ PyErr_Clear ();
}
else
fprintf_filtered (gdb_stderr, "Python Exception %s %s: \n",
type.get (), msg.get ());
}
- CATCH (except, RETURN_MASK_ALL)
+ catch (const gdb_exception &except)
{
}
- END_CATCH
-
- Py_XDECREF (ptype);
- Py_XDECREF (pvalue);
- Py_XDECREF (ptraceback);
}
}
-\f
+/* Like gdbpy_print_stack, but if the exception is a
+ KeyboardException, throw a gdb "quit" instead. */
-/* Return the current Progspace.
- There always is one. */
-
-static PyObject *
-gdbpy_get_current_progspace (PyObject *unused1, PyObject *unused2)
+void
+gdbpy_print_stack_or_quit ()
{
- PyObject *result;
-
- result = pspace_to_pspace_object (current_program_space);
- if (result)
- Py_INCREF (result);
- return result;
+ if (PyErr_ExceptionMatches (PyExc_KeyboardInterrupt))
+ {
+ PyErr_Clear ();
+ throw_quit ("Quit");
+ }
+ gdbpy_print_stack ();
}
+\f
+
/* Return a sequence holding all the Progspaces. */
static PyObject *
ALL_PSPACES (ps)
{
- PyObject *item = pspace_to_pspace_object (ps);
+ gdbpy_ref<> item = pspace_to_pspace_object (ps);
- if (!item || PyList_Append (list.get (), item) == -1)
+ if (item == NULL || PyList_Append (list.get (), item.get ()) == -1)
return NULL;
}
static PyObject *
gdbpy_get_current_objfile (PyObject *unused1, PyObject *unused2)
{
- PyObject *result;
-
if (! gdbpy_current_objfile)
Py_RETURN_NONE;
- result = objfile_to_objfile_object (gdbpy_current_objfile);
- if (result)
- Py_INCREF (result);
- return result;
-}
-
-/* Return a sequence holding all the Objfiles. */
-
-static PyObject *
-gdbpy_objfiles (PyObject *unused1, PyObject *unused2)
-{
- struct objfile *objf;
-
- gdbpy_ref<> list (PyList_New (0));
- if (list == NULL)
- return NULL;
-
- ALL_OBJFILES (objf)
- {
- PyObject *item = objfile_to_objfile_object (objf);
-
- if (!item || PyList_Append (list.get (), item) == -1)
- return NULL;
- }
-
- return list.release ();
+ return objfile_to_objfile_object (gdbpy_current_objfile).release ();
}
/* Compute the list of active python type printers and store them in
error (_("Python scripting is not supported in this copy of GDB."));
else
{
- command_line_up l = get_command_line (python_control, "");
+ counted_command_line l = get_command_line (python_control, "");
execute_control_command_untraced (l.get ());
}
restore_active_ext_lang (previous_active);
}
+#ifdef IS_PY3K
+/* This is called via the PyImport_AppendInittab mechanism called
+ during initialization, to make the built-in _gdb module known to
+ Python. */
+PyMODINIT_FUNC
+init__gdb_module (void)
+{
+ return PyModule_Create (&python_GdbModuleDef);
+}
+#endif
+
static bool
do_start_initialization ()
{
std::string oldloc = setlocale (LC_ALL, NULL);
setlocale (LC_ALL, "");
progsize = strlen (progname.get ());
- progname_copy = (wchar_t *) PyMem_Malloc ((progsize + 1) * sizeof (wchar_t));
+ progname_copy = (wchar_t *) xmalloc ((progsize + 1) * sizeof (wchar_t));
if (!progname_copy)
{
fprintf (stderr, "out of memory\n");
remain alive for the duration of the program's execution, so
it is not freed after this call. */
Py_SetProgramName (progname_copy);
+
+ /* Define _gdb as a built-in module. */
+ PyImport_AppendInittab ("_gdb", init__gdb_module);
#else
Py_SetProgramName (progname.release ());
#endif
PyEval_InitThreads ();
#ifdef IS_PY3K
- gdb_module = PyModule_Create (&python_GdbModuleDef);
- /* Add _gdb module to the list of known built-in modules. */
- _PyImport_FixupBuiltin (gdb_module, "_gdb");
+ gdb_module = PyImport_ImportModule ("_gdb");
#else
gdb_module = Py_InitModule ("_gdb", python_GdbMethods);
#endif
if (gdb_module == NULL)
return false;
- /* The casts to (char*) are for python 2.4. */
- if (PyModule_AddStringConstant (gdb_module, "VERSION", (char*) version) < 0
- || PyModule_AddStringConstant (gdb_module, "HOST_CONFIG",
- (char*) host_name) < 0
+ if (PyModule_AddStringConstant (gdb_module, "VERSION", version) < 0
+ || PyModule_AddStringConstant (gdb_module, "HOST_CONFIG", host_name) < 0
|| PyModule_AddStringConstant (gdb_module, "TARGET_CONFIG",
- (char*) target_name) < 0)
+ target_name) < 0)
return false;
/* Add stream constants. */
#endif /* HAVE_PYTHON */
+/* See python.h. */
+cmd_list_element *python_cmd_element = nullptr;
+
void
_initialize_python (void)
{
printed. For example:\n\
\n\
(gdb) python-interactive 2 + 3\n\
- 5\n\
-")
+ 5")
#else /* HAVE_PYTHON */
_("\
Start a Python interactive prompt.\n\
);
add_com_alias ("pi", "python-interactive", class_obscure, 1);
- add_com ("python", class_obscure, python_command,
+ python_cmd_element = add_com ("python", class_obscure, python_command,
#ifdef HAVE_PYTHON
_("\
Evaluate a Python command.\n\
\n\
The command can be given as an argument, for instance:\n\
\n\
- python print 23\n\
+ python print (23)\n\
\n\
If no argument is given, the following lines are read and used\n\
as the Python commands. Type a line containing \"end\" to indicate\n\
warning (_("\n"
"Could not load the Python gdb module from `%s'.\n"
"Limited Python support is available from the _gdb module.\n"
- "Suggest passing --data-directory=/path/to/gdb/data-directory.\n"),
+ "Suggest passing --data-directory=/path/to/gdb/data-directory."),
gdb_pythondir.c_str ());
/* We return "success" here as we've already emitted the
warning. */
{ "default_visualizer", gdbpy_default_visualizer, METH_VARARGS,
"Find the default visualizer for a Value." },
- { "current_progspace", gdbpy_get_current_progspace, METH_NOARGS,
- "Return the current Progspace." },
{ "progspaces", gdbpy_progspaces, METH_NOARGS,
"Return a sequence of all progspaces." },
{ "current_objfile", gdbpy_get_current_objfile, METH_NOARGS,
"Return the current Objfile being loaded, or None." },
- { "objfiles", gdbpy_objfiles, METH_NOARGS,
- "Return a sequence of all loaded objfiles." },
{ "newest_frame", gdbpy_newest_frame, METH_NOARGS,
"newest_frame () -> gdb.Frame.\n\
METH_VARARGS | METH_KEYWORDS,
"lookup_global_symbol (name [, domain]) -> symbol\n\
Return the symbol corresponding to the given name (or None)." },
+ { "lookup_static_symbol", (PyCFunction) gdbpy_lookup_static_symbol,
+ METH_VARARGS | METH_KEYWORDS,
+ "lookup_static_symbol (name [, domain]) -> symbol\n\
+Return the static-linkage symbol corresponding to the given name (or None)." },
{ "lookup_objfile", (PyCFunction) gdbpy_lookup_objfile,
METH_VARARGS | METH_KEYWORDS,
If by_build_id is True, the objfile is looked up by using name\n\
as its build id." },
- { "block_for_pc", gdbpy_block_for_pc, METH_VARARGS,
- "Return the block containing the given pc value, or None." },
- { "solib_name", gdbpy_solib_name, METH_VARARGS,
- "solib_name (Long) -> String.\n\
-Return the name of the shared library holding a given address, or None." },
{ "decode_line", gdbpy_decode_line, METH_VARARGS,
"decode_line (String) -> Tuple. Decode a string argument the way\n\
that 'break' or 'edit' does. Return a tuple containing two elements.\n\
"parse_and_eval (String) -> Value.\n\
Parse String as an expression, evaluate it, and return the result as a Value."
},
- { "find_pc_line", gdbpy_find_pc_line, METH_VARARGS,
- "find_pc_line (pc) -> Symtab_and_line.\n\
-Return the gdb.Symtab_and_line object corresponding to the pc value." },
{ "post_event", gdbpy_post_event, METH_VARARGS,
"Post an event into gdb's event loop." },
Invalidate any cached frame objects in gdb.\n\
Intended for internal use only." },
+ { "convenience_variable", gdbpy_convenience_variable, METH_VARARGS,
+ "convenience_variable (NAME) -> value.\n\
+Return the value of the convenience variable $NAME,\n\
+or None if not set." },
+ { "set_convenience_variable", gdbpy_set_convenience_variable, METH_VARARGS,
+ "convenience_variable (NAME, VALUE) -> None.\n\
+Set the value of the convenience variable $NAME." },
+
{NULL, NULL, 0, NULL}
};
projects / deliverable / binutils-gdb.git / blobdiff