tree c05b8402deb757aaabc989ddc8fd3c0a051529cd
parent f1221a1f39987b94a54dc57b824fcf360c890ed0
author Andreas Gampe <agampe@google.com> 1498105291 -0700
committer Andreas Gampe <agampe@google.com> 1498105462 -0700

ART: Fix RequestSynchronousCheckpoint

Fix the known races in the code by requiring more locks on entry.
This helps ensure there is no time in the caller where the thread
can die while requesting the checkpoint.

Fix up GetStackTrace, GetFrameCount and GetFrameLocation.

Bug: 62353392
Test: m test-art-host
Test: art/test/testrunner/testrunner.py -b --host -t 911
Change-Id: Ia0c5e920599b58098dc4b3a3d09c5284045f2947