Reverting r183529:

This is causing the following error on Darwin:

/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc:282:1: error: 'assertion_failed__282' declared as an array with a negative size
CHECK_TYPE_SIZE(ifconf);
^~~~~~~~~~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc:223:3: note: expanded from macro 'CHECK_TYPE_SIZE'
  COMPILER_CHECK(sizeof(__sanitizer_##TYPE) == sizeof(TYPE))
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h:239:30: note: expanded from macro 'COMPILER_CHECK'
#define COMPILER_CHECK(pred) IMPL_COMPILER_ASSERT(pred, __LINE__)
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h:245:57: note: expanded from macro 'IMPL_COMPILER_ASSERT'
    typedef char IMPL_PASTE(assertion_failed_##_, line)[2*(int)(pred)-1]
                                                        ^~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc:284:1: error: 'assertion_failed__284' declared as an array with a negative size
CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc:228:3: note: expanded from macro 'CHECK_SIZE_AND_OFFSET'
  COMPILER_CHECK(offsetof(__sanitizer_##CLASS, MEMBER) ==          \
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h:239:30: note: expanded from macro 'COMPILER_CHECK'
#define COMPILER_CHECK(pred) IMPL_COMPILER_ASSERT(pred, __LINE__)
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/Sandbox/llvm-clean.src/projects/compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h:245:57: note: expanded from macro 'IMPL_COMPILER_ASSERT'
    typedef char IMPL_PASTE(assertion_failed_##_, line)[2*(int)(pred)-1]
                                                        ^~~~~~~~~~~~~~~



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183557 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] don't use -m{32,64} flag in test case, as it can be run in both 32- and 64-bit modes

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183638 91177308-0d34-0410-b5e6-96231b3b80d8
[MSan] don't add msan unit tests to check-msan command if libcxx is not checked out

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183641 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix lint warnings


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183642 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: more detailed trace for atomic operations (include address and memory ordering)


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183643 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix windows mingw build


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183644 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix old gcc warnings


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183645 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix windows crash (incorrect stack boundaries)


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183646 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] fix the bug with memalign and malloc_usable_size (http://code.google.com/p/address-sanitizer/issues/detail?id=193); also fix lint

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183647 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix merge bug


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183648 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: disable getaddrinfo() interceptor for tsan (causes recursion)


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183649 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] fix Android build (mark asan_malloc_usable_size as an interface function)

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183651 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] mark ioctl test as xfailing on darwin. remove redundant semicolons

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183655 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Fix unset-insert-libraries-on-exec.cc on 32-bit Darwin.
The test used to execute a 64-bit /bin/bash binary and preload a 32-bit dynamic library into it.
Now the arch-specific version of echo-env is executed instead.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183662 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: allows to suppress races on global variables


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183672 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: add system tests for suppressions


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183673 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: fix lit test failures


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183674 91177308-0d34-0410-b5e6-96231b3b80d8
Merge branch 'master' into powerpc-darwin8
[Sanitizer] support running external llvm-symbolizer on Mac

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183730 91177308-0d34-0410-b5e6-96231b3b80d8
[Sanitizer] add file forgotten in r183730

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183732 91177308-0d34-0410-b5e6-96231b3b80d8