tree e2be8a78edb83b0da34f77697405aa53f9962e32
parent 8cb366a7ba8f02094c7c3bd21e217fff52f6ad17
author Robert Sesek <rsesek@google.com> 1471288869 -0400
committer Robert Sesek <rsesek@google.com> 1474471058 -0400

Add CanWriteToDalvikCache() check before writing a boot marker or image cache.

A new zygote process, the webview_zygote, will spawn isolated_app children,
but the process itself does not run as root and cannot write to the dalvik
cache. In order to not print SELinux avc errors, check for file-write
permission when testing to see if a boot marker or cache image or should be
written.

Test: m test-art
Test: angler boots

Bug: 21643067
Change-Id: I9f797fe7332a21ef4c6b83d2210b1673af09de1b