tree cf2844dac5603567763f439fe5db650dccc993ad
parent fe9a4f061841a3c597aac6817a47c799c54fcad7
author Andreas Gampe <agampe@google.com> 1498695615 -0700
committer Andreas Gampe <agampe@google.com> 1498763635 -0700

ART: Change main-thread thread paging scheme

Modify the code that ensures we can install a stack guard page into
the main thread.

A recent kernel change means that our previous approach of using a
free pointer does not work. It is important to actually extend the
stack properly. For portability, use a function with a large stack
frame (suggested by and adapted from hboehm).

Bug: 62952017
Test: m
Test: m test-art-host
Test: Device boots (x86_64 emulator)
Test: Device boots (bullhead)
Change-Id: Ic2a0c3d6d05a1ea9f655329d147b46949e1b9db3