servicemanager: log on failed lazy start

libc and init will both log in this case, but the logs are confusing, so
adding a 3rd log where we can share more of a hint for this particular
usecase.

Bug: N/A
Test: boot & force log to happen
Change-Id: I94636610c27d48c1c1a01003ad486ec41ba25275

1 files changed, 6 insertions, 1 deletions

diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index b429fb3440..90db5091e1 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -481,7 +481,12 @@ void ServiceManager::tryStartService(const std::string& name) {
           name.c_str());
 
     std::thread([=] {
-        (void)base::SetProperty("ctl.interface_start", "aidl/" + name);
+        if (!base::SetProperty("ctl.interface_start", "aidl/" + name)) {
+            LOG(INFO) << "Tried to start aidl service " << name
+                      << " as a lazy service, but was unable to. Usually this happens when a "
+                         "service is not installed, but if the service is intended to be used as a "
+                         "lazy service, then it may be configured incorrectly.";
+        }
     }).detach();
 }