Make /data/local/temp dir, needed by libFuzzer merge on Android. (google#1141)

inferno-chromium · web-flow · commit 88f02e46ee58 · 2019-10-25T15:12:55.000-07:00
* Make /data/local/temp dir, needed by libFuzzer merge on Android.

* Add comment.
diff --git a/src/python/bot/fuzzers/libfuzzer.py b/src/python/bot/fuzzers/libfuzzer.py
@@ -889,6 +889,9 @@ class AndroidLibFuzzerRunner(new_process.ProcessRunner, LibFuzzerCommon):
   """Android libFuzzer runner."""
   DEVICE_FUZZING_DIR = '/data/fuzz'
 
+  # This temp directory is used by libFuzzer merge tool. DONT CHANGE.
+  LIBFUZZER_TEMP_DIR = '/data/local/tmp'
+
   def __init__(self, executable_path, build_directory, default_args=None):
     """Inits the AndroidLibFuzzerRunner.
 
@@ -901,6 +904,7 @@ def __init__(self, executable_path, build_directory, default_args=None):
         executable_path=android.adb.get_adb_path(),
         default_args=self._get_default_args(executable_path, default_args))
 
+    android.adb.create_directory_if_needed(self.LIBFUZZER_TEMP_DIR)
     self._copy_local_directory_to_device(build_directory)
 
   def _get_default_args(self, executable_path, extra_args):
