ACIL FM

Nama	Ukuran	Aksi
clk.py	2.46 MB	View DL Edit
config.py	1.27 MB	View DL Edit
constants.py.in	1.75 MB	View DL Edit
cpus.py	5.2 MB	View DL Edit
device.py	5.65 MB	View DL Edit
dmesg.py	5.82 MB	View DL Edit
genpd.py	2.52 MB	View DL Edit
lists.py	4.16 MB	View DL Edit
Makefile	667 B	View DL Edit
modules.py	2.54 MB	View DL Edit
proc.py	8.54 MB	View DL Edit
rbtree.py	4.25 MB	View DL Edit
symbols.py	6.88 MB	View DL Edit
tasks.py	3.55 MB	View DL Edit
timerlist.py	7.55 MB	View DL Edit
utils.py	5.03 MB	View DL Edit
__init__.py	55 B	View DL Edit

Edit file: /usr/src/kernels/5.14.0-427.31.1.el9_4.x86_64/scripts/gdb/linux/tasks.py

#
# 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")

def task_lists():
    task_ptr_type = task_type.get_type().pointer()
    init_task = gdb.parse_and_eval("init_task").address
    t = g = init_task

while True:
        while True:
            yield t

t = utils.container_of(t['thread_group']['next'],
                                   task_ptr_type, "thread_group")
            if t == g:
                break

t = g = utils.container_of(g['tasks']['next'],
                                   task_ptr_type, "tasks")
        if t == init_task:
            return

def get_task_by_pid(pid):
    for task in task_lists():
        if int(task['pid']) == pid:
            return task
    return None

class LxTaskByPidFunc(gdb.Function):
    """Find Linux task by PID and return the task_struct variable.

$lx_task_by_pid(PID): Given PID, iterate over all tasks of the target and
return that task_struct variable which PID matches."""

def __init__(self):
        super(LxTaskByPidFunc, self).__init__("lx_task_by_pid")

def invoke(self, pid):
        task = get_task_by_pid(pid)
        if task:
            return task.dereference()
        else:
            raise gdb.GdbError("No task of PID " + str(pid))

LxTaskByPidFunc()

class LxPs(gdb.Command):
    """Dump Linux tasks."""

def __init__(self):
        super(LxPs, self).__init__("lx-ps", gdb.COMMAND_DATA)

def invoke(self, arg, from_tty):
        gdb.write("{:>10} {:>12} {:>7}\n".format("TASK", "PID", "COMM"))
        for task in task_lists():
            gdb.write("{} {:^5} {}\n".format(
                task.format_string().split()[0],
                task["pid"].format_string(),
                task["comm"].string()))

LxPs()

thread_info_type = utils.CachedType("struct thread_info")

ia64_task_size = None

def get_thread_info(task):
    thread_info_ptr_type = thread_info_type.get_type().pointer()
    if utils.is_target_arch("ia64"):
        global ia64_task_size
        if ia64_task_size is None:
            ia64_task_size = gdb.parse_and_eval("sizeof(struct task_struct)")
        thread_info_addr = task.address + ia64_task_size
        thread_info = thread_info_addr.cast(thread_info_ptr_type)
    else:
        if task.type.fields()[0].type == thread_info_type.get_type():
            return task['thread_info']
        thread_info = task['stack'].cast(thread_info_ptr_type)
    return thread_info.dereference()

class LxThreadInfoFunc (gdb.Function):
    """Calculate Linux thread_info from task variable.

$lx_thread_info(TASK): Given TASK, return the corresponding thread_info
variable."""

def __init__(self):
        super(LxThreadInfoFunc, self).__init__("lx_thread_info")

def invoke(self, task):
        return get_thread_info(task)

LxThreadInfoFunc()

class LxThreadInfoByPidFunc (gdb.Function):
    """Calculate Linux thread_info from task variable found by pid

$lx_thread_info_by_pid(PID): Given PID, return the corresponding thread_info
variable."""

def __init__(self):
        super(LxThreadInfoByPidFunc, self).__init__("lx_thread_info_by_pid")

def invoke(self, pid):
        task = get_task_by_pid(pid)
        if task:
            return get_thread_info(task.dereference())
        else:
            raise gdb.GdbError("No task of PID " + str(pid))

LxThreadInfoByPidFunc()

Batal