tree 157b2f122315dc605883953203efd05d3ac5f7da
parent 30fa1b786418b6a47fb7e605134bc71a2414e412
author Tom Cherry <tomcherry@google.com> 1539972987 -0700
committer Tom Cherry <tomcherry@google.com> 1539973138 -0700

init: Add some ASAN helpers

Init is special.

It starts early and does not pick up the Android ASAN options provided
on the environment.  Therefore we pull in /system/asan.options in
explicitly if it exists.  We provide sane defaults that will allow the
system to boot otherwise.

Logging is complicated because it needs to go to the kernel log.
So use sanitizer functions to install log functions.

Bug: 117879229
Test: m && m SANITIZE_TARGET=address
Test: init boots with ASAN enabled
Change-Id: I72c033a1f86ba5d6b2e4f943e7a3acd0d399c8bf