tree 15fcd3caeea9269e5e3eefb881ec25bade966bcb
parent 3374d0cabb973ff2b73ad8cd909389bdeed18658
author Christopher Ferris <cferris@google.com> 1518057734 -0800
committer Christopher Ferris <cferris@google.com> 1518557850 -0800

Implement malloc hooks.

Use the malloc debug framework to implement the malloc debug hooks
since it can introduce a performance issue.

Also, modify the bionic/tests/utils.h slightly to dump an error message
when the exe failed.

Bug: 30561479

Test: Ran malloc hook unit tests.
Test: Ran malloc debug unit tests.
Test: Enabled malloc hooks and ran bionic unit tests and verified no
Test: unexpected failures.
Test: Enabled malloc debug and malloc hooks and verified malloc debug wins.
Test: Enabled malloc debug using env, property, and property with name
Test: still works.

Change-Id: Ib50046a0493c5c2050cf831befb812310bdcc249
(cherry picked from commit d6a1dc23796696f73f483943534d4c5c4b312d39)