commit 5beddb7d642524ecb6655ab2823caf2add679917
author Elliott Hughes <enh@google.com> Thu Sep 04 16:09:25 2014 -0700
committer Elliott Hughes <enh@google.com> Thu Sep 04 20:34:03 2014 -0700
tree 711cd3603a4a36b27cf330ec6e33a2a17aee9e32
parent 1e010d60397db706cd3d1c4d5701a2bced441aa8

Fix pthread_attr_getstack__main_thread.

There were two problems here:

* This would fail when run with unlimited stack, because it didn't know
  that bionic reports unlimited stacks as 8MiB.

* This would leave RLIMIT_STACK small, causing failures to exec (so the
  popen and system tests would fail).

(cherry-pick of 27a9aed81978af792cb06035a1619c8141a5fb5b plus the
new ScopeGuard.h from a3ad450a2e3fb6b3fe359683b247eba20896f646.)

Bug: 17394276
Change-Id: I5b92dc64ca089400223b2d9a3743e9b9d57c1bc2