Asan.options: Use abort_on_error
am: 67b7e85b18

Change-Id: I0fc6b677f8bec9ce148ee65ab3c6e3f5165496a8
diff --git a/bootstat/bootstat.cpp b/bootstat/bootstat.cpp
index 26e0ffc..d547c19 100644
--- a/bootstat/bootstat.cpp
+++ b/bootstat/bootstat.cpp
@@ -169,7 +169,19 @@
 void RecordBootComplete() {
   BootEventRecordStore boot_event_store;
   BootEventRecordStore::BootEventRecord record;
+
   time_t uptime = bootstat::ParseUptime();
+  time_t current_time_utc = time(nullptr);
+
+  if (boot_event_store.GetBootEvent("last_boot_time_utc", &record)) {
+    time_t last_boot_time_utc = record.second;
+    time_t time_since_last_boot = difftime(current_time_utc,
+                                           last_boot_time_utc);
+    boot_event_store.AddBootEventWithValue("time_since_last_boot",
+                                           time_since_last_boot);
+  }
+
+  boot_event_store.AddBootEventWithValue("last_boot_time_utc", current_time_utc);
 
   // The boot_complete metric has two variants: boot_complete and
   // ota_boot_complete.  The latter signifies that the device is booting after