/* General python/gdb code
- Copyright (C) 2008-2017 Free Software Foundation, Inc.
+ Copyright (C) 2008-2018 Free Software Foundation, Inc.
This file is part of GDB.
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
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
+ criteria. REGEX refers to a GDB format standard regex pattern of
+ symbols names to search; MINSYMS is an optional boolean (default
+ False) that indicates if the function should search GDB's minimal
+ symbols; THROTTLE is an optional integer (default unlimited) that
+ indicates the maximum amount of breakpoints allowable before the
+ function exits (note, if the throttle bound is passed, no
+ breakpoints will be set and a runtime error returned); SYMTABS is
+ an optional Python iterable that contains a set of gdb.Symtabs to
+ constrain the search within. */
+
+static PyObject *
+gdbpy_rbreak (PyObject *self, PyObject *args, PyObject *kw)
+{
+ /* A simple type to ensure clean up of a vector of allocated strings
+ when a C interface demands a const char *array[] type
+ interface. */
+ struct symtab_list_type
+ {
+ ~symtab_list_type ()
+ {
+ for (const char *elem: vec)
+ xfree ((void *) elem);
+ }
+ std::vector<const char *> vec;
+ };
+
+ char *regex = NULL;
+ std::vector<symbol_search> symbols;
+ unsigned long count = 0;
+ PyObject *symtab_list = NULL;
+ PyObject *minsyms_p_obj = NULL;
+ int minsyms_p = 0;
+ unsigned int throttle = 0;
+ static const char *keywords[] = {"regex","minsyms", "throttle",
+ "symtabs", NULL};
+ symtab_list_type symtab_paths;
+
+ if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|O!IO", keywords,
+ ®ex, &PyBool_Type,
+ &minsyms_p_obj, &throttle,
+ &symtab_list))
+ return NULL;
+
+ /* Parse minsyms keyword. */
+ if (minsyms_p_obj != NULL)
+ {
+ int cmp = PyObject_IsTrue (minsyms_p_obj);
+ if (cmp < 0)
+ return NULL;
+ minsyms_p = cmp;
+ }
+
+ /* The "symtabs" keyword is any Python iterable object that returns
+ a gdb.Symtab on each iteration. If specified, iterate through
+ the provided gdb.Symtabs and extract their full path. As
+ python_string_to_target_string returns a
+ gdb::unique_xmalloc_ptr<char> and a vector containing these types
+ cannot be coerced to a const char **p[] via the vector.data call,
+ release the value from the unique_xmalloc_ptr and place it in a
+ simple type symtab_list_type (which holds the vector and a
+ destructor that frees the contents of the allocated strings. */
+ if (symtab_list != NULL)
+ {
+ gdbpy_ref<> iter (PyObject_GetIter (symtab_list));
+
+ if (iter == NULL)
+ return NULL;
+
+ while (true)
+ {
+ gdbpy_ref<> next (PyIter_Next (iter.get ()));
+
+ if (next == NULL)
+ {
+ if (PyErr_Occurred ())
+ return NULL;
+ break;
+ }
+
+ gdbpy_ref<> obj_name (PyObject_GetAttrString (next.get (),
+ "filename"));
+
+ if (obj_name == NULL)
+ return NULL;
+
+ /* Is the object file still valid? */
+ if (obj_name == Py_None)
+ continue;
+
+ gdb::unique_xmalloc_ptr<char> filename =
+ python_string_to_target_string (obj_name.get ());
+
+ if (filename == NULL)
+ return NULL;
+
+ /* Make sure there is a definite place to store the value of
+ filename before it is released. */
+ symtab_paths.vec.push_back (nullptr);
+ symtab_paths.vec.back () = filename.release ();
+ }
+ }
+
+ if (symtab_list)
+ {
+ const char **files = symtab_paths.vec.data ();
+
+ symbols = search_symbols (regex, FUNCTIONS_DOMAIN,
+ symtab_paths.vec.size (), files);
+ }
+ else
+ symbols = search_symbols (regex, FUNCTIONS_DOMAIN, 0, NULL);
+
+ /* Count the number of symbols (both symbols and optionally minimal
+ symbols) so we can correctly check the throttle limit. */
+ for (const symbol_search &p : symbols)
+ {
+ /* Minimal symbols included? */
+ if (minsyms_p)
+ {
+ if (p.msymbol.minsym != NULL)
+ count++;
+ }
+
+ if (p.symbol != NULL)
+ count++;
+ }
+
+ /* Check throttle bounds and exit if in excess. */
+ if (throttle != 0 && count > throttle)
+ {
+ PyErr_SetString (PyExc_RuntimeError,
+ _("Number of breakpoints exceeds throttled maximum."));
+ return NULL;
+ }
+
+ gdbpy_ref<> return_list (PyList_New (0));
+
+ if (return_list == NULL)
+ return NULL;
+
+ /* Construct full path names for symbols and call the Python
+ breakpoint constructor on the resulting names. Be tolerant of
+ individual breakpoint failures. */
+ for (const symbol_search &p : symbols)
+ {
+ std::string symbol_name;
+
+ /* Skipping minimal symbols? */
+ if (minsyms_p == 0)
+ if (p.msymbol.minsym != NULL)
+ continue;
+
+ if (p.msymbol.minsym == NULL)
+ {
+ struct symtab *symtab = symbol_symtab (p.symbol);
+ const char *fullname = symtab_to_fullname (symtab);
+
+ symbol_name = fullname;
+ symbol_name += ":";
+ symbol_name += SYMBOL_LINKAGE_NAME (p.symbol);
+ }
+ else
+ symbol_name = MSYMBOL_LINKAGE_NAME (p.msymbol.minsym);
+
+ gdbpy_ref<> argList (Py_BuildValue("(s)", symbol_name.c_str ()));
+ gdbpy_ref<> obj (PyObject_CallObject ((PyObject *)
+ &breakpoint_object_type,
+ argList.get ()));
+
+ /* Tolerate individual breakpoint failures. */
+ if (obj == NULL)
+ gdbpy_print_stack ();
+ else
+ {
+ if (PyList_Append (return_list.get (), obj.get ()) == -1)
+ return NULL;
+ }
+ }
+ return return_list.release ();
+}
+
/* A Python function which is a wrapper for decode_line_1. */
static PyObject *
return NULL;
if (arg != NULL)
- location = string_to_event_location_basic (&arg, python_language);
+ location = string_to_event_location_basic (&arg, python_language,
+ symbol_name_match_type::WILD);
std::vector<symtab_and_line> decoded_sals;
symtab_and_line def_sal;
static bool
do_start_initialization ()
{
- char *progname;
#ifdef IS_PY3K
- int i;
size_t progsize, count;
wchar_t *progname_copy;
#endif
/foo/bin/python
/foo/lib/pythonX.Y/...
This must be done before calling Py_Initialize. */
- progname = concat (ldirname (python_libdir).c_str (), SLASH_STRING, "bin",
- SLASH_STRING, "python", (char *) NULL);
+ gdb::unique_xmalloc_ptr<char> progname
+ (concat (ldirname (python_libdir).c_str (), SLASH_STRING, "bin",
+ SLASH_STRING, "python", (char *) NULL));
#ifdef IS_PY3K
std::string oldloc = setlocale (LC_ALL, NULL);
setlocale (LC_ALL, "");
- progsize = strlen (progname);
+ progsize = strlen (progname.get ());
progname_copy = (wchar_t *) PyMem_Malloc ((progsize + 1) * sizeof (wchar_t));
if (!progname_copy)
{
fprintf (stderr, "out of memory\n");
return false;
}
- count = mbstowcs (progname_copy, progname, progsize + 1);
+ count = mbstowcs (progname_copy, progname.get (), progsize + 1);
if (count == (size_t) -1)
{
fprintf (stderr, "Could not convert python path to string\n");
it is not freed after this call. */
Py_SetProgramName (progname_copy);
#else
- Py_SetProgramName (progname);
+ Py_SetProgramName (progname.release ());
#endif
#endif
{ "target_wide_charset", gdbpy_target_wide_charset, METH_NOARGS,
"target_wide_charset () -> string.\n\
Return the name of the current target wide charset." },
-
+ { "rbreak", (PyCFunction) gdbpy_rbreak, METH_VARARGS | METH_KEYWORDS,
+ "rbreak (Regex) -> List.\n\
+Return a Tuple containing gdb.Breakpoint objects that match the given Regex." },
{ "string_to_argv", gdbpy_string_to_argv, METH_VARARGS,
"string_to_argv (String) -> Array.\n\
Parse String and return an argv-like array.\n\
projects / deliverable / binutils-gdb.git / blobdiff