Function sanitizeLogHead

lib/Logging/Logging.cpp:89–95

Checks whether the RTC log state is consistent: rtcLogMagic must equal LOG_RTC_MAGIC and logHead must be in 0..MAX_LOG_LINES-1. Returns true if corruption is detected, in which case rtcLogMagic is still invalid and logMessages may contain garbage. Callers (e.g. HalSystem::begin on the panic-reboot path) must call clearLastLogs() after a true result to fully reinitialize the ring buffer and stamp t

// panic-reboot path) must call clearLastLogs() after a true result to fully
// reinitialize the ring buffer and stamp the magic before getLastLogs() is used.
bool sanitizeLogHead() {
  if (rtcLogMagic != LOG_RTC_MAGIC || logHead >= MAX_LOG_LINES) {
    logHead = 0;
    return true;
  }
  return false;
}

void clearLastLogs() {
  for (size_t i = 0; i < MAX_LOG_LINES; i++) {