5beddb7d64
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