Revert the Darwin half of r184805: "Remove the sysroot (or isysroot)
restriction from the GCDAProfile.c"

Bill added a much more effective way of coping with the use of errno and
other system interactions for Darwin for now by disabling it on that
platform. Building against the SDK stuff is more fundamental to the
darwin build process.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184929 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] initialize fake_stack lazily and increase its maximal size. This makes -fsanitize=address,use-after-return more robust: all SPEC tests pass now. In the default mode thread stacks become a bit smaller.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184934 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] readdir and readdir_r interceptors.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184950 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] Move some suppressions-related code to common.

Factor out code to be reused in LSan. Also switch from linked list to vector.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184957 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "Temporarily disable building the armv7 variants of profile_ios on"

This reverts commit r184816.  With Chandler's change in r184929, this should
no longer be necessary.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184961 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] Fix build.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@184963 91177308-0d34-0410-b5e6-96231b3b80d8
[MSan] Rename __msan_unpoision_param to __msan::UnpoisonParam - it shouldn't be in interface

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185062 91177308-0d34-0410-b5e6-96231b3b80d8
[TSan] try to fix Go build

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185063 91177308-0d34-0410-b5e6-96231b3b80d8
[LSan] Add the way to disable LSan at link time

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185066 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] Fix dirent interceptors.

The new version reads d_reclen for (struct dirent) size.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185067 91177308-0d34-0410-b5e6-96231b3b80d8