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4 Commits

Author SHA1 Message Date
Vedant Kumar cecb1121bb Mark the tsan strerror_r test as unsupported on Darwin 
llvm-svn: 304944
 2017-06-07 21:10:35 +00:00
Vedant Kumar 3e95c498aa Revert "Fix tsan test for Darwin. NFCI." 
This reverts commit r304941. Vitaly Buka writes:
"Actually it depends on return value.
Test is for char* version of function. It will probably fail for int
version."

llvm-svn: 304943
 2017-06-07 21:10:33 +00:00
Vedant Kumar a302ae096e Fix tsan test for Darwin. NFCI. 
On Darwin, strerror_r returns an int, not a char*. I don't think this
test really depends on what strerror_r returns, so I've used something
else in place of the result of the call to strerror_r.

llvm-svn: 304941
 2017-06-07 20:43:15 +00:00
Vitaly Buka d9bc851fb3 [tsan]: Fix GNU version of strerror_r interceptor 
GNU version of strerror_r returns a result pointer that doesn't match the input
buffer. The result pointer is in fact a pointer to some internal storage.
TSAN was recording a write to this location, which was incorrect.

Fixed https://github.com/google/sanitizers/issues/696

llvm-svn: 304858
 2017-06-07 01:53:38 +00:00