google/kasan — pull request #19 by dvyukov (2014-12-02 18:32:48+00:00)
Title: module: support module destructors

AddressSanitizer needs module destructors to unpoison
redzones around globals on module unload.
CONFIG_CONSTRUCTORS is currently used only by coverage,
so this does not have effect on any other configurations.

Signed-off-by: Dmitry Vyukov