The Pixel libperfmgr has following code :
std::thread initThread([&]() {
::android::base::WaitForProperty(kPowerHalInitProp.data(), 1);
hm->Start();
dlpw->Init();
});
which is basically
declare thread {
if (powerhalprop_is_not_set) wait;
else (powerhal_prop_is_set) init_other_threads;
}.start();
But in logcat
<11>[ 21.988418] [2: init: 2815] init: Unable to set property 'vendor.powerhal.init' from uid:0 gid:0 pid:2816: SELinux permission check failed
<36>[ 21.989189] [3: logd.auditd: 3586] type=1107 audit(1654915533.291:146): uid=0 auid=4294967295 ses=4294967295 subj=u:r:init:s0 msg='avc: denied { set } for property=vendor.powerhal.init pid=2816 uid=0 gid=0 scontext=u:r:vendor_init:s0 tcontext=u:object_r:vendor_powerhal_prop:s0 tclass=property_service permissive=0'
So the powerhal's thread was not being run. This commit fixes seplicy to allow vendor init to set the powerhal init prop. May fix some issues on DT2W and deep sleep
6feb600625