Grave improvements: Native crash postmortems via Android tombstones

Native crashes on Android have always been harder to debug than they should be. The platform has its own crash reporter ( debuggerd ) that captures the crashing thread, every other running thread, register state, and memory maps into a file called a tombstone. Tombstones have been a part of Android for a long time; in fact, they’ve been there in one form or another since Android’s first commit.