tree e05a9fc25d9cc15c41d109af7a92b610b15fac7d
parent 55d5ea6b59c15d9da9f7552a557628f2c84b7c92
author Elliott Hughes <enh@google.com> 1338425946 -0700
committer Elliott Hughes <enh@google.com> 1338489180 -0700

[DO NOT MERGE] Improve signal catching and native stack dumps.

This works around the problem with abort(3) (and friends) on glibc,
and improves our ability to catch SIGSEGVs from the main thread, and
slightly improves our behavior if multiple threads are dying at once.
I think any remaining flakiness is only in this last case, and I'm
not sure whether we can actually improve that any further.

(cherry picked from commit dcaaea9d30f39622d0b1d9bbb68911173621e54b)

Conflicts:

	src/runtime_linux.cc

Change-Id: I9922f3ee4609799993635e1ed98a21363505a6ab