ACIL FM

Nama	Ukuran	Aksi
clk.py	2.46 MB	View DL Edit
config.py	1.27 MB	View DL Edit
constants.py.in	3.15 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
mm.py	13.98 MB	View DL Edit
modules.py	2.75 MB	View DL Edit
pgtable.py	10.08 MB	View DL Edit
proc.py	8.54 MB	View DL Edit
rbtree.py	4.25 MB	View DL Edit
symbols.py	6.92 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/5.14.0-611.27.1.el9_7.x86_64/scripts/gdb/linux/device.py

# SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) NXP 2019

import gdb

from linux.utils import CachedType
from linux.utils import container_of
from linux.lists import list_for_each_entry

device_private_type = CachedType('struct device_private')
device_type = CachedType('struct device')

subsys_private_type = CachedType('struct subsys_private')
kobject_type = CachedType('struct kobject')
kset_type = CachedType('struct kset')

bus_type = CachedType('struct bus_type')
class_type = CachedType('struct class')

def dev_name(dev):
    dev_init_name = dev['init_name']
    if dev_init_name:
        return dev_init_name.string()
    return dev['kobj']['name'].string()

def kset_for_each_object(kset):
    return list_for_each_entry(kset['list'],
            kobject_type.get_type().pointer(), "entry")

def for_each_bus():
    for kobj in kset_for_each_object(gdb.parse_and_eval('bus_kset')):
        subsys = container_of(kobj, kset_type.get_type().pointer(), 'kobj')
        subsys_priv = container_of(subsys, subsys_private_type.get_type().pointer(), 'subsys')
        yield subsys_priv['bus']

def for_each_class():
    for kobj in kset_for_each_object(gdb.parse_and_eval('class_kset')):
        subsys = container_of(kobj, kset_type.get_type().pointer(), 'kobj')
        subsys_priv = container_of(subsys, subsys_private_type.get_type().pointer(), 'subsys')
        yield subsys_priv['class']

def get_bus_by_name(name):
    for item in for_each_bus():
        if item['name'].string() == name:
            return item
    raise gdb.GdbError("Can't find bus type {!r}".format(name))

def get_class_by_name(name):
    for item in for_each_class():
        if item['name'].string() == name:
            return item
    raise gdb.GdbError("Can't find device class {!r}".format(name))

klist_type = CachedType('struct klist')
klist_node_type = CachedType('struct klist_node')

def klist_for_each(klist):
    return list_for_each_entry(klist['k_list'],
                klist_node_type.get_type().pointer(), 'n_node')

def bus_for_each_device(bus):
    for kn in klist_for_each(bus['p']['klist_devices']):
        dp = container_of(kn, device_private_type.get_type().pointer(), 'knode_bus')
        yield dp['device']

def class_for_each_device(cls):
    for kn in klist_for_each(cls['p']['klist_devices']):
        dp = container_of(kn, device_private_type.get_type().pointer(), 'knode_class')
        yield dp['device']

def device_for_each_child(dev):
    for kn in klist_for_each(dev['p']['klist_children']):
        dp = container_of(kn, device_private_type.get_type().pointer(), 'knode_parent')
        yield dp['device']

def _show_device(dev, level=0, recursive=False):
    gdb.write('{}dev {}:\t{}\n'.format('\t' * level, dev_name(dev), dev))
    if recursive:
        for child in device_for_each_child(dev):
            _show_device(child, level + 1, recursive)

class LxDeviceListBus(gdb.Command):
    '''Print devices on a bus (or all buses if not specified)'''

def __init__(self):
        super(LxDeviceListBus, self).__init__('lx-device-list-bus', gdb.COMMAND_DATA)

def invoke(self, arg, from_tty):
        if not arg:
            for bus in for_each_bus():
                gdb.write('bus {}:\t{}\n'.format(bus['name'].string(), bus))
                for dev in bus_for_each_device(bus):
                    _show_device(dev, level=1)
        else:
            bus = get_bus_by_name(arg)
            if not bus:
                raise gdb.GdbError("Can't find bus {!r}".format(arg))
            for dev in bus_for_each_device(bus):
                _show_device(dev)

class LxDeviceListClass(gdb.Command):
    '''Print devices in a class (or all classes if not specified)'''

def __init__(self):
        super(LxDeviceListClass, self).__init__('lx-device-list-class', gdb.COMMAND_DATA)

def invoke(self, arg, from_tty):
        if not arg:
            for cls in for_each_class():
                gdb.write("class {}:\t{}\n".format(cls['name'].string(), cls))
                for dev in class_for_each_device(cls):
                    _show_device(dev, level=1)
        else:
            cls = get_class_by_name(arg)
            for dev in class_for_each_device(cls):
                _show_device(dev)

class LxDeviceListTree(gdb.Command):
    '''Print a device and its children recursively'''

def __init__(self):
        super(LxDeviceListTree, self).__init__('lx-device-list-tree', gdb.COMMAND_DATA)

def invoke(self, arg, from_tty):
        if not arg:
            raise gdb.GdbError('Please provide pointer to struct device')
        dev = gdb.parse_and_eval(arg)
        if dev.type != device_type.get_type().pointer():
            raise gdb.GdbError('Please provide pointer to struct device')
        _show_device(dev, level=0, recursive=True)

class LxDeviceFindByBusName(gdb.Function):
    '''Find struct device by bus and name (both strings)'''

def __init__(self):
        super(LxDeviceFindByBusName, self).__init__('lx_device_find_by_bus_name')

def invoke(self, bus, name):
        name = name.string()
        bus = get_bus_by_name(bus.string())
        for dev in bus_for_each_device(bus):
            if dev_name(dev) == name:
                return dev

class LxDeviceFindByClassName(gdb.Function):
    '''Find struct device by class and name (both strings)'''

def __init__(self):
        super(LxDeviceFindByClassName, self).__init__('lx_device_find_by_class_name')

def invoke(self, cls, name):
        name = name.string()
        cls = get_class_by_name(cls.string())
        for dev in class_for_each_device(cls):
            if dev_name(dev) == name:
                return dev

LxDeviceListBus()
LxDeviceListClass()
LxDeviceListTree()
LxDeviceFindByBusName()
LxDeviceFindByClassName()

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