From 97b5922a75b6f0337c2d3ae4bc62dc18347f861e Mon Sep 17 00:00:00 2001 From: Leonard Kugis Date: Sat, 13 Jan 2018 22:56:35 +0100 Subject: Funktionierendes settings GUI --- Release/share/glib-2.0/gdb/gobject_gdb.py | 295 ++++++++++++++++++++++++++++++ 1 file changed, 295 insertions(+) create mode 100644 Release/share/glib-2.0/gdb/gobject_gdb.py (limited to 'Release/share/glib-2.0/gdb/gobject_gdb.py') diff --git a/Release/share/glib-2.0/gdb/gobject_gdb.py b/Release/share/glib-2.0/gdb/gobject_gdb.py new file mode 100644 index 0000000..8c30220 --- /dev/null +++ b/Release/share/glib-2.0/gdb/gobject_gdb.py @@ -0,0 +1,295 @@ +import os.path +import gdb +import glib_gdb +import sys + +if sys.version_info[0] >= 3: + long = int +else: + import itertools + map = itertools.imap + +# FrameDecorator is new in gdb 7.7, so we adapt to its absence. +try: + import gdb.FrameDecorator + HAVE_GDB_FRAMEDECORATOR = True + FrameDecorator = gdb.FrameDecorator.FrameDecorator +except ImportError: + HAVE_GDB_FRAMEDECORATOR = False + +# This is not quite right, as local vars may override symname +def read_global_var (symname): + return gdb.selected_frame().read_var(symname) + +def g_type_to_name (gtype): + def lookup_fundamental_type (typenode): + if typenode == 0: + return None + val = read_global_var ("static_fundamental_type_nodes") + if val == None: + return None + return val[typenode >> 2].address() + + gtype = long(gtype) + typenode = gtype - gtype % 4 + if typenode > (255 << 2): + typenode = gdb.Value(typenode).cast (gdb.lookup_type("TypeNode").pointer()) + else: + typenode = lookup_fundamental_type (typenode) + if typenode != None: + return glib_gdb.g_quark_to_string (typenode["qname"]) + return None + +def is_g_type_instance (val): + def is_g_type_instance_helper (type): + if str(type) == "GTypeInstance": + return True + + while type.code == gdb.TYPE_CODE_TYPEDEF: + type = type.target() + + if type.code != gdb.TYPE_CODE_STRUCT: + return False + + fields = type.fields() + if len (fields) < 1: + return False + + first_field = fields[0] + return is_g_type_instance_helper(first_field.type) + + type = val.type + if type.code != gdb.TYPE_CODE_PTR: + return False + type = type.target() + return is_g_type_instance_helper (type) + +def g_type_name_from_instance (instance): + if long(instance) != 0: + try: + inst = instance.cast (gdb.lookup_type("GTypeInstance").pointer()) + klass = inst["g_class"] + gtype = klass["g_type"] + name = g_type_to_name (gtype) + return name + except RuntimeError: + pass + return None + +class GTypePrettyPrinter: + "Prints a GType instance pointer" + + def __init__ (self, val): + self.val = val + + def to_string (self): + name = g_type_name_from_instance (self.val) + if name: + return ("0x%x [%s]")% (long(self.val), name) + return ("0x%x") % (long(self.val)) + +def pretty_printer_lookup (val): + if is_g_type_instance (val): + return GTypePrettyPrinter (val) + + return None + +def get_signal_name (id): + if id == None: + return None + id = long(id) + if id == 0: + return None + val = read_global_var ("g_signal_nodes") + max_s = read_global_var ("g_n_signal_nodes") + max_s = long(max_s) + if id < max_s: + return val[id]["name"].string() + return None + +def frame_name(frame): + return str(frame.function()) + +def frame_var(frame, var): + return frame.inferior_frame().read_var(var) + + +class SignalFrame(FrameDecorator): + def __init__ (self, frames): + FrameDecorator.__init__(self, frames[-1]) + self.frame = frames[-1] + self.frames = frames + + def name (self): + return "signal-emission" + + def read_var (self, frame, name, array = None): + try: + v = frame_var (frame, name) + if v == None or v.is_optimized_out: + return None + if array != None: + array.append (v) + return v + except ValueError: + return None + + def read_object (self, frame, name, array = None): + try: + v = frame_var (frame, name) + if v == None or v.is_optimized_out: + return None + v = v.cast (gdb.lookup_type("GObject").pointer()) + # Ensure this is a somewhat correct object pointer + if v != None and g_type_name_from_instance (v): + if array != None: + array.append (v) + return v + return None + except ValueError: + return None + + def append (self, array, obj): + if obj != None: + array.append (obj) + + def or_join_array (self, array): + if len(array) == 0: + return "???" + else: + return ' or '.join(set(map(str, array))) + + def get_detailed_signal_from_frame(self, frame, signal): + detail = self.read_var (frame, "detail") + detail = glib_gdb.g_quark_to_string (detail) + if detail is not None: + return signal + ":" + detail + else: + return detail + + def function (self): + instances = [] + signals = [] + + for frame in self.frames: + name = frame_name(frame) + if name == "signal_emit_unlocked_R": + self.read_object (frame, "instance", instances) + node = self.read_var (frame, "node") + if node: + signal = node["name"].string() + signal = self.get_detailed_signal_from_frame(frame, signal) + self.append(signals, signal) + + if name == "g_signal_emitv": + instance_and_params = self.read_var (frame, "instance_and_params") + if instance_and_params: + instance = instance_and_params[0]["v_pointer"].cast (gdb.Type("GObject").pointer()) + self.append (instances, instance) + id = self.read_var (frame, "signal_id") + signal = get_signal_name (id) + if signal: + signal = self.get_detailed_signal_from_frame(frame, signal) + self.append (signals, signal) + + if name == "g_signal_emit_valist" or name == "g_signal_emit": + self.read_object (frame, "instance", instances) + id = self.read_var (frame, "signal_id") + signal = get_signal_name (id) + if signal: + signal = self.get_detailed_signal_from_frame(frame, signal) + self.append (signals, signal) + + if name == "g_signal_emit_by_name": + self.read_object (frame, "instance", instances) + self.read_var (frame, "detailed_signal", signals) + break + + instance = self.or_join_array (instances) + signal = self.or_join_array (signals) + + return "" % (signal, instance) + + def elided (self): + return self.frames[0:-1] + + def describe (self, stream, full): + stream.write (" " + self.function () + "\n") + +class GFrameDecorator: + def __init__ (self, iter): + self.queue = [] + self.iter = iter + + def __iter__ (self): + return self + + def fill (self): + while len(self.queue) <= 8: + try: + f = next(self.iter) + self.queue.append (f) + except StopIteration: + return + + def find_signal_emission (self): + for i in range (min (len(self.queue), 3)): + if frame_name(self.queue[i]) == "signal_emit_unlocked_R": + return i + return -1 + + def next (self): + # Ensure we have enough frames for a full signal emission + self.fill() + + # Are we at the end? + if len(self.queue) == 0: + raise StopIteration + + emission = self.find_signal_emission () + if emission > 0: + start = emission + while True: + if start == 0: + break + prev_name = frame_name(self.queue[start-1]) + if prev_name.find("_marshal_") >= 0 or prev_name == "g_closure_invoke": + start = start - 1 + else: + break + end = emission + 1 + while end < len(self.queue): + if frame_name(self.queue[end]) in ["g_signal_emitv", + "g_signal_emit_valist", + "g_signal_emit", + "g_signal_emit_by_name", + "_g_closure_invoke_va"]: + end = end + 1 + else: + break + + signal_frames = self.queue[start:end] + new_frames = [SignalFrame(signal_frames)] + self.queue[start:end] = new_frames + + return self.queue.pop(0) + + def __next__ (self): + return self.next() + +class GFrameFilter(object): + name = 'glib' + enabled = True + priority = 100 + + def filter(self, iterator): + return GFrameDecorator(iterator) + +def register (obj): + if obj == None: + obj = gdb + + if HAVE_GDB_FRAMEDECORATOR: + filter = GFrameFilter() + obj.frame_filters[filter.name] = filter + obj.pretty_printers.append(pretty_printer_lookup) -- cgit v1.2.1