47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
|
#
|
||
|
|
# gdb helper commands and functions for Linux kernel debugging
|
||
|
|
#
|
||
|
|
# task & thread tools
|
||
|
|
#
|
||
|
|
# Copyright (c) Siemens AG, 2011-2013
|
||
|
|
#
|
||
|
|
# Authors:
|
||
|
|
# Jan Kiszka <jan.kiszka@siemens.com>
|
||
|
|
#
|
||
|
|
# This work is licensed under the terms of the GNU GPL version 2.
|
||
|
|
#
|
||
|
|
|
||
|
|
import gdb
|
||
|
|
|
||
|
|
from linux import utils
|
||
|
|
|
||
|
|
|
||
|
|
task_type = utils.CachedType("struct task_struct")
|
||
|
|
|
||
|
|
|
||
|
|
class TaskList:
|
||
|
|
def __init__(self):
|
||
|
|
global task_type
|
||
|
|
self.task_ptr_type = task_type.get_type().pointer()
|
||
|
|
self.init_task = gdb.parse_and_eval("init_task")
|
||
|
|
self.curr_group = self.init_task.address
|
||
|
|
self.curr_task = None
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return self
|
||
|
|
|
||
|
|
def next(self):
|
||
|
|
t = self.curr_task
|
||
|
|
if not t or t == self.curr_group:
|
||
|
|
self.curr_group = \
|
||
|
|
utils.container_of(self.curr_group['tasks']['next'],
|
||
|
|
self.task_ptr_type, "tasks")
|
||
|
|
if self.curr_group == self.init_task.address:
|
||
|
|
raise StopIteration
|
||
|
|
t = self.curr_task = self.curr_group
|
||
|
|
else:
|
||
|
|
self.curr_task = \
|
||
|
|
utils.container_of(t['thread_group']['next'],
|
||
|
|
self.task_ptr_type, "thread_group")
|
||
|
|
return t
|