[PATCH] D30010: Improve the robustness of mmap

[Zachary Turner via Phabricator via llvm-commits]

zturner added a comment.

I pulled the non-Windows code for this from here, btw:

https://github.com/llvm-mirror/lldb/blob/master/source/Host/posix/FileSystem.cpp#L216-L254


https://reviews.llvm.org/D30010