diff options
Diffstat (limited to 'utils.py')
| -rw-r--r-- | utils.py | 48 |
1 files changed, 48 insertions, 0 deletions
@@ -18,8 +18,11 @@ # TODO(b/147454897): Keep the logic in sync with # test/vts/utils/python/controllers/android_device.py until # it is removed. +import gzip import logging +import os import subprocess +import tempfile class AndroidDevice(object): """This class controls the device via adb commands.""" @@ -141,6 +144,51 @@ class AndroidDevice(object): """Gets the VNDK version that the vendor partition requests.""" return self._GetProp("ro.vndk.version") + def GetKernelConfig(self, config_name): + """Gets kernel config from the device. + + Args: + config_name: A string, the name of the configuration. + + Returns: + "y" or "m" if the config is set. + "" if the config is not set. + None if fails to read config. + """ + line_prefix = config_name + "=" + with tempfile.NamedTemporaryFile(delete=False) as temp_file: + config_path = temp_file.name + try: + logging.debug("Pull config.gz to %s", config_path) + self.AdbPull("/proc/config.gz", config_path) + with gzip.open(config_path, "rt") as config_file: + for line in config_file: + if line.strip().startswith(line_prefix): + logging.debug("Found config: %s", line) + return line.strip()[len(line_prefix):] + logging.debug("%s is not set.", config_name) + return "" + except (subprocess.CalledProcessError, IOError) as e: + logging.exception("Cannot read kernel config.", e) + return None + finally: + os.remove(config_path) + + def GetBinderBitness(self): + """Returns the value of BINDER_IPC_32BIT in kernel config. + + Returns: + 32 or 64, binder bitness of the device. + None if fails to read config. + """ + config_value = self.GetKernelConfig("CONFIG_ANDROID_BINDER_IPC_32BIT") + if config_value is None: + return None + elif config_value: + return 32 + else: + return 64 + def IsRoot(self): """Returns whether adb has root privilege on the device.""" out, err, return_code = self.Execute("id") |