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There is a corner case reported in Go issue tracker: https://github.com/golang/go/issues/17065 On darwin data/bss segments may not be aligned to page bounary and mmap seems to be behaving differently than on linux (shrinks instead of enlarge unaligned regions). Explicitly round shadow to page bounary before mapping to avoid any such problems. llvm-svn: 285454
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================