Add NetBSD support in tsan_test_util_posix.cc

[krytarowski]

Summary

NetBSD similar to FreeBSD and MacOSX ships with ESOCKTNOSUPPORT.

Sponsored by <The NetBSD Foundation>

[krytarowski]

ping

[krytarowski]

I will submit this as a larger patch proposal.

lib/tsan/tests/rtl/tsan_test_util_posix.cc

 //===-- tsan_test_util_posix.cc -------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file is a part of ThreadSanitizer (TSan), a race detector.
 //
-// Test utils, Linux, FreeBSD and Darwin implementation.
+// Test utils, Linux, FreeBSD, NetBSD and Darwin implementation.
 //===----------------------------------------------------------------------===//
 
 #include "sanitizer_common/sanitizer_atomic.h"
 #include "tsan_interface.h"
 #include "tsan_posix_util.h"
 #include "tsan_test_util.h"
 #include "tsan_report.h"
 
if (ev->type == Event::READ) {
         case 1: tsan_mop = __tsan_write1; break;
         case 2: tsan_mop = __tsan_write2; break;
         case 4: tsan_mop = __tsan_write4; break;
         case 8: tsan_mop = __tsan_write8; break;
         case 16: tsan_mop = __tsan_write16; break;
       }
     }
     CHECK_NE(tsan_mop, 0);
-#if defined(__FreeBSD__) || defined(__APPLE__)
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__NetBSD__)
     const int ErrCode = ESOCKTNOSUPPORT;
 #else
     const int ErrCode = ECHRNG;
 #endif
     errno = ErrCode;
     tsan_mop(ev->ptr);
     CHECK_EQ(ErrCode, errno);  // In no case must errno be changed.
     break;