Defined in carb/crashreporter/CrashReporterUtils.h

static int carb::crashreporter::kExternalTerminationSignal = SIGRTMAX - 1

Signal number to use to handle external termination requests.

This signal is intentionally a seldom used one so that it is unlikely to interfere with other normal signal usage in the process. Even with the rarely used signal, we’ll still include other safety checks on the received signal before scheduling an intentional termination.