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Author SHA1 Message Date
Kuba Brecka 5ac97845b1 Follow-up for r264261, adding a comment explaining what the testcase does. 
llvm-svn: 264271
 2016-03-24 13:20:38 +00:00
Kuba Brecka 46b9363683 [tsan] Use direct syscalls for internal_mmap and internal_munmap on OS X 
On OS X, internal_mmap just uses mmap, which can invoke callbacks into libmalloc (e.g. when MallocStackLogging is enabled). This can subsequently call other intercepted functions, and this breaks our Darwin-specific ThreadState initialization. Let's use direct syscalls in internal_mmap and internal_munmap. Added a testcase.

Differential Revision: http://reviews.llvm.org/D18431

llvm-svn: 264259
 2016-03-24 11:50:21 +00:00