Support building tsan_test_util_linux.cc on FreeBSD

[emaste]

lib/tsan/tests/rtl/tsan_test_util_linux.cc

13

Comment here should be adjusted.

IIRC we have no immediate plans to rename the files to indicate they apply to more than just Linux.so a comment could alleviate confusion for someone looking at this code in the future.

[samsonov]

LGTM

lib/tsan/tests/rtl/tsan_test_util_linux.cc

273

While you're here, replace this with

CHECK_EQ(ErrCode, errno);

(expected value is supposed to go first).

Closed by commit rL217309 (authored by vkutuzov).

lib/tsan/tests/rtl/tsan_test_util_linux.cc

 
 //===-- tsan_test_util_linux.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 implementation.
 //===----------------------------------------------------------------------===//
 
 #include "sanitizer_common/sanitizer_atomic.h"
 #include "tsan_interface.h"
 #include "tsan_test_util.h"
 #include "tsan_report.h"
 
 #include "gtest/gtest.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);
-    errno = ECHRNG;
+#if defined(__FreeBSD__)
+    const int ErrCode = ESOCKTNOSUPPORT;
+#else
+    const int ErrCode = ECHRNG;
+#endif
+    errno = ErrCode;
     tsan_mop(ev->ptr);
-    CHECK_EQ(errno, ECHRNG);  // In no case must errno be changed.
+    CHECK_EQ(errno, ErrCode);  // In no case must errno be changed.
     break;
   }
   case Event::VPTR_UPDATE:
     __tsan_vptr_update((void**)ev->ptr, (void*)ev->arg);
     break;
   case Event::CALL:
     __tsan_func_entry((void*)((uptr)ev->ptr));
     break;