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# Copyright 2018 ARM Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# pylint: disable=protected-access
import os
from devlib import AndroidTarget, TargetError
from devlib.target import KernelConfig, KernelVersion, Cpuinfo
from devlib.utils.android import AndroidProperties
from wa.framework.configuration.core import settings
from wa.framework.exception import ConfigError
from wa.utils.serializer import read_pod, write_pod, Podable
def cpuinfo_from_pod(pod):
cpuinfo = Cpuinfo('')
cpuinfo.sections = pod['cpuinfo']
lines = []
for section in cpuinfo.sections:
for key, value in section.items():
line = '{}: {}'.format(key, value)
lines.append(line)
lines.append('')
cpuinfo.text = '\n'.join(lines)
return cpuinfo
def kernel_version_from_pod(pod):
release_string = pod['kernel_release']
version_string = pod['kernel_version']
if release_string:
if version_string:
kernel_string = '{} #{}'.format(release_string, version_string)
else:
kernel_string = release_string
else:
kernel_string = '#{}'.format(version_string)
return KernelVersion(kernel_string)
def kernel_config_from_pod(pod):
config = KernelConfig('')
config._config = pod['kernel_config']
lines = []
for key, value in config._config.items():
if value == 'n':
lines.append('# {} is not set'.format(key))
else:
lines.append('{}={}'.format(key, value))
config.text = '\n'.join(lines)
return config
class CpufreqInfo(Podable):
_pod_serialization_version = 1
@staticmethod
def from_pod(pod):
pod = CpufreqInfo._upgrade_pod(pod)
return CpufreqInfo(**pod)
def __init__(self, **kwargs):
super(CpufreqInfo, self).__init__()
self.available_frequencies = kwargs.pop('available_frequencies', [])
self.available_governors = kwargs.pop('available_governors', [])
self.related_cpus = kwargs.pop('related_cpus', [])
self.driver = kwargs.pop('driver', None)
self._pod_version = kwargs.pop('_pod_version', self._pod_serialization_version)
def to_pod(self):
pod = super(CpufreqInfo, self).to_pod()
pod.update(self.__dict__)
return pod
@staticmethod
def _pod_upgrade_v1(pod):
pod['_pod_version'] = pod.get('_pod_version', 1)
return pod
def __repr__(self):
return 'Cpufreq({} {})'.format(self.driver, self.related_cpus)
__str__ = __repr__
class IdleStateInfo(Podable):
_pod_serialization_version = 1
@staticmethod
def from_pod(pod):
pod = IdleStateInfo._upgrade_pod(pod)
return IdleStateInfo(**pod)
def __init__(self, **kwargs):
super(IdleStateInfo, self).__init__()
self.name = kwargs.pop('name', None)
self.desc = kwargs.pop('desc', None)
self.power = kwargs.pop('power', None)
self.latency = kwargs.pop('latency', None)
self._pod_version = kwargs.pop('_pod_version', self._pod_serialization_version)
def to_pod(self):
pod = super(IdleStateInfo, self).to_pod()
pod.update(self.__dict__)
return pod
@staticmethod
def _pod_upgrade_v1(pod):
pod['_pod_version'] = pod.get('_pod_version', 1)
return pod
def __repr__(self):
return 'IdleState({}/{})'.format(self.name, self.desc)
__str__ = __repr__
class CpuidleInfo(Podable):
_pod_serialization_version = 1
@staticmethod
def from_pod(pod):
pod = CpuidleInfo._upgrade_pod(pod)
instance = CpuidleInfo()
instance._pod_version = pod['_pod_version']
instance.governor = pod['governor']
instance.driver = pod['driver']
instance.states = [IdleStateInfo.from_pod(s) for s in pod['states']]
return instance
@property
def num_states(self):
return len(self.states)
def __init__(self):
super(CpuidleInfo, self).__init__()
self.governor = None
self.driver = None
self.states = []
def to_pod(self):
pod = super(CpuidleInfo, self).to_pod()
pod['governor'] = self.governor
pod['driver'] = self.driver
pod['states'] = [s.to_pod() for s in self.states]
return pod
@staticmethod
def _pod_upgrade_v1(pod):
pod['_pod_version'] = pod.get('_pod_version', 1)
return pod
def __repr__(self):
return 'Cpuidle({}/{} {} states)'.format(
self.governor, self.driver, self.num_states)
__str__ = __repr__
class CpuInfo(Podable):
_pod_serialization_version = 1
@staticmethod
def from_pod(pod):
instance = super(CpuInfo, CpuInfo).from_pod(pod)
instance.id = pod['id']
instance.name = pod['name']
instance.architecture = pod['architecture']
instance.features = pod['features']
instance.cpufreq = CpufreqInfo.from_pod(pod['cpufreq'])
instance.cpuidle = CpuidleInfo.from_pod(pod['cpuidle'])
return instance
def __init__(self):
super(CpuInfo, self).__init__()
self.id = None
self.name = None
self.architecture = None
self.features = []
self.cpufreq = CpufreqInfo()
self.cpuidle = CpuidleInfo()
def to_pod(self):
pod = super(CpuInfo, self).to_pod()
pod['id'] = self.id
pod['name'] = self.name
pod['architecture'] = self.architecture
pod['features'] = self.features
pod['cpufreq'] = self.cpufreq.to_pod()
pod['cpuidle'] = self.cpuidle.to_pod()
return pod
@staticmethod
def _pod_upgrade_v1(pod):
pod['_pod_version'] = pod.get('_pod_version', 1)
return pod
def __repr__(self):
return 'Cpu({} {})'.format(self.id, self.name)
__str__ = __repr__
def get_target_info(target):
info = TargetInfo()
info.target = target.__class__.__name__
info.os = target.os
info.os_version = target.os_version
info.system_id = target.system_id
info.abi = target.abi
info.is_rooted = target.is_rooted
info.kernel_version = target.kernel_version
info.kernel_config = target.config
try:
info.sched_features = target.read_value('/sys/kernel/debug/sched_features').split()
except TargetError:
# best effort -- debugfs might not be mounted
pass
hostid_string = target.execute('{} hostid'.format(target.busybox)).strip()
info.hostid = int(hostid_string, 16)
info.hostname = target.execute('{} hostname'.format(target.busybox)).strip()
for i, name in enumerate(target.cpuinfo.cpu_names):
cpu = CpuInfo()
cpu.id = i
cpu.name = name
cpu.features = target.cpuinfo.get_cpu_features(i)
cpu.architecture = target.cpuinfo.architecture
if target.has('cpufreq'):
cpu.cpufreq.available_governors = target.cpufreq.list_governors(i)
cpu.cpufreq.available_frequencies = target.cpufreq.list_frequencies(i)
cpu.cpufreq.related_cpus = target.cpufreq.get_related_cpus(i)
cpu.cpufreq.driver = target.cpufreq.get_driver(i)
if target.has('cpuidle'):
cpu.cpuidle.driver = target.cpuidle.get_driver()
cpu.cpuidle.governor = target.cpuidle.get_governor()
for state in target.cpuidle.get_states(i):
state_info = IdleStateInfo()
state_info.name = state.name
state_info.desc = state.desc
state_info.power = state.power
state_info.latency = state.latency
cpu.cpuidle.states.append(state_info)
info.cpus.append(cpu)
info.page_size_kb = target.page_size_kb
if isinstance(target, AndroidTarget):
info.screen_resolution = target.screen_resolution
info.prop = target.getprop()
info.android_id = target.android_id
return info
def read_target_info_cache():
if not os.path.exists(settings.cache_directory):
os.makedirs(settings.cache_directory)
if not os.path.isfile(settings.target_info_cache_file):
return {}
return read_pod(settings.target_info_cache_file)
def write_target_info_cache(cache):
if not os.path.exists(settings.cache_directory):
os.makedirs(settings.cache_directory)
write_pod(cache, settings.target_info_cache_file)
def get_target_info_from_cache(system_id):
cache = read_target_info_cache()
pod = cache.get(system_id, None)
if not pod:
return None
_pod_version = pod.get('_pod_version', 0)
if _pod_version != TargetInfo._pod_serialization_version:
msg = 'Target info version mismatch. Expected {}, but found {}.\nTry deleting {}'
raise ConfigError(msg.format(TargetInfo._pod_serialization_version, _pod_version,
settings.target_info_cache_file))
return TargetInfo.from_pod(pod)
def cache_target_info(target_info, overwrite=False):
cache = read_target_info_cache()
if target_info.system_id in cache and not overwrite:
raise ValueError('TargetInfo for {} is already in cache.'.format(target_info.system_id))
cache[target_info.system_id] = target_info.to_pod()
write_target_info_cache(cache)
class TargetInfo(Podable):
_pod_serialization_version = 2
@staticmethod
def from_pod(pod):
instance = super(TargetInfo, TargetInfo).from_pod(pod)
instance.target = pod['target']
instance.abi = pod['abi']
instance.cpus = [CpuInfo.from_pod(c) for c in pod['cpus']]
instance.os = pod['os']
instance.os_version = pod['os_version']
instance.system_id = pod['system_id']
instance.hostid = pod['hostid']
instance.hostname = pod['hostname']
instance.abi = pod['abi']
instance.is_rooted = pod['is_rooted']
instance.kernel_version = kernel_version_from_pod(pod)
instance.kernel_config = kernel_config_from_pod(pod)
instance.sched_features = pod['sched_features']
instance.page_size_kb = pod.get('page_size_kb')
if instance.os == 'android':
instance.screen_resolution = pod['screen_resolution']
instance.prop = AndroidProperties('')
instance.prop._properties = pod['prop']
instance.android_id = pod['android_id']
return instance
def __init__(self):
super(TargetInfo, self).__init__()
self.target = None
self.cpus = []
self.os = None
self.os_version = None
self.system_id = None
self.hostid = None
self.hostname = None
self.abi = None
self.is_rooted = None
self.kernel_version = None
self.kernel_config = None
self.sched_features = None
self.screen_resolution = None
self.prop = None
self.android_id = None
self.page_size_kb = None
def to_pod(self):
pod = super(TargetInfo, self).to_pod()
pod['target'] = self.target
pod['abi'] = self.abi
pod['cpus'] = [c.to_pod() for c in self.cpus]
pod['os'] = self.os
pod['os_version'] = self.os_version
pod['system_id'] = self.system_id
pod['hostid'] = self.hostid
pod['hostname'] = self.hostname
pod['abi'] = self.abi
pod['is_rooted'] = self.is_rooted
pod['kernel_release'] = self.kernel_version.release
pod['kernel_version'] = self.kernel_version.version
pod['kernel_config'] = dict(self.kernel_config.iteritems())
pod['sched_features'] = self.sched_features
pod['page_size_kb'] = self.page_size_kb
if self.os == 'android':
pod['screen_resolution'] = self.screen_resolution
pod['prop'] = self.prop._properties
pod['android_id'] = self.android_id
return pod
@staticmethod
def _pod_upgrade_v1(pod):
pod['_pod_version'] = pod.get('_pod_version', 1)
pod['cpus'] = pod.get('cpus', [])
pod['system_id'] = pod.get('system_id')
pod['hostid'] = pod.get('hostid')
pod['hostname'] = pod.get('hostname')
pod['sched_features'] = pod.get('sched_features')
pod['screen_resolution'] = pod.get('screen_resolution', (0, 0))
pod['prop'] = pod.get('prop')
pod['android_id'] = pod.get('android_id')
return pod
@staticmethod
def _pod_upgrade_v2(pod):
pod['page_size_kb'] = pod.get('page_size_kb')
pod['_pod_version'] = pod.get('format_version', 0)
return pod
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