[sanitizer] Fix TSan build.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184736 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] Intercept sysinfo.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184739 91177308-0d34-0410-b5e6-96231b3b80d8