我用 ndk 构建了一些命令行工具并在 /data/local/tmp 中执行它。现在，当我在命令行工具中调用一些 OpenSLES API 时，它提示我“需要 android.permission.RECORD_AUDIO”：
W/AudioRecord( 4226): AUDIO_INPUT_FLAG_FAST denied by client
W/ServiceManager( 207): Permission failure: android.permission.RECORD_AUDIO from uid=2000 pid=4226
E/ ( 207): Request requires android.permission.RECORD_AUDIO
D/PowerManagerService( 964): handleSandman: canDream=false, mWakefulness=Asleep
E/AudioFlinger( 207): openRecord() permission denied: recording not allowed
E/AudioRecord( 4226): AudioFlinger could not create record track, status: -1
E/libOpenSLES( 4226): android_audioRecorder_realize(0x453430) error creating AudioRecord object
W/libOpenSLES( 4226): Leaving Object::Realize (SL_RESULT_CONTENT_UNSUPPORTED)
我还尝试使用 pm grant 授予 shell：
pm grant "com.android.shell" android.permission.RECORD_AUDIO
pm grant "com.android.shell" android.permission.RECORD_AUDIO
pm grant "com.android.shell" …