[PATCH] A workaround for getting process memory map taking too long for sanitizers on FreeBSD

[Kostya Serebryany]

BTW, the whole FREEBSD-specific part is gobbledygook for me. 
I don't mind it as long as it is completely under #if SANITIZER_FREEBSD, 
but maybe you can CC some FreeBSD expert just in case.

http://reviews.llvm.org/D3732