tree b38e77c02921bdf036809c6a102ebcefa39b5e89
parent 682282eaac86202652e17752ef32f14c89e2ccda
author Josh Gao <jmgao@google.com> 1492539536 -0700
committer Josh Gao <jmgao@google.com> 1492549460 -0700

fault_handler: use SafeCopy to decode x86 instruction length.

Prevent a crash in the x86 fault handler when pc points to garbage and
we try to figure out its instruction length.

Bug: http://b/30836730
Test: m test-art-host
Change-Id: Ic1fbb8856e30140f0e1ebc9caccf9559e88ff137