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from adb import Adb
import subprocess
import time
class AdbNonRoot(Adb):
# If adb cannot run as root, there is still a way to collect data but it is much more complicated.
# 1. Identify the platform abi, use getprop: ro.product.cpu.abi
# 2. Push the precompiled scripts/bin/android/[ABI]/simpleperf to device /data/local/tmp/simpleperf
# 4. Use run-as to copy /data/local/tmp/simplerperf -> /apps/installation_path/simpleperf
# 5. Use run-as to run: /apps/installation_path/simpleperf -p APP_PID -o /apps/installation_path/perf.data
# 6. Use run-as fork+pipe trick to copy /apps/installation_path/perf.data to /data/local/tmp/perf.data
def collect_data(self, process):
if not process.args.skip_push_binary:
self.push_simpleperf_binary()
# Copy simpleperf to the data
subprocess.check_output(["adb", "shell", "run-as %s" % process.name, "cp", "/data/local/tmp/simpleperf", "."])
# Patch command to run with path to data folder where simpleperf was written.
process.cmd = process.cmd.replace("/data/local/tmp/perf.data", "./perf.data")
# Start collecting samples.
process.cmd = ("run-as %s " % process.name) + process.cmd
subprocess.call(["adb", "shell", process.cmd])
# Wait sampling_duration+1.5 seconds.
time.sleep(int(process.args.capture_duration) + 1)
# Move data to a location where shell user can read it.
subprocess.call(["adb", "shell", "run-as %s cat perf.data | tee /data/local/tmp/perf.data >/dev/null" % (process.name)])
return True
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