def str_chunk_size_flag(self):
msg = []
msg.append("PREV_INUSE flag: {}".format(
Color.greenify("On") if self.has_p_bit() else Color.redify("Off")))
msg.append("IS_MMAPPED flag: {}".format(
Color.greenify("On") if self.has_m_bit() else Color.redify("Off")))
msg.append("NON_MAIN_ARENA flag: {}".format(
Color.greenify("On") if self.has_n_bit() else Color.redify("Off")))
return "\n".join(msg)
def context_trace(self):
self.context_title("trace")
nb_backtrace = self.get_setting("nb_lines_backtrace")
if nb_backtrace <= 0:
return None
orig_frame = current_frame = gdb.selected_frame()
i = 0
# backward compat for gdb (gdb < 7.10)
if not hasattr(gdb, "FrameDecorator"):
gdb.execute("backtrace {:d}".format(nb_backtrace))
return None
while current_frame:
current_frame.select()
if not current_frame.is_valid():
continue
pc = current_frame.pc()
name = current_frame.name()
items = []
items.append("{:#x}".format(pc))
if name:
frame_args = gdb.FrameDecorator.FrameDecorator(
current_frame).frame_args() or []
m = "{}({})".format(
Color.greenify(name), ", ".join([
"{}={!s}".format(Color.yellowify(x.sym),
x.sym.value(current_frame))
for x in frame_args
]))
items.append(m)
else:
try:
insn = next(disass.gef_disassemble(pc, 1))
except gdb.MemoryError:
break
items.append(
Color.redify("{} {}".format(insn.mnemonic,
", ".join(insn.operands))))
print("[{}] {}".format(
Color.colorify("#{}".format(i), "bold pink"),
config_arrow_right.join(items)))
current_frame = current_frame.older()
i += 1
nb_backtrace -= 1
if nb_backtrace == 0:
break
orig_frame.select()
return None