[PATCH] Fix getting IP, BP and SP for address sanitizer's needs on FreeBSD in 32-bit mode

[Viktor Kutuzov]

> Yea, make something like asan_freebsd_ucontext.h.

What if we introduce a single file, say, in lib/sanitizer_common/sanitizer_freebsd.h for this sort of things?

http://reviews.llvm.org/D3936