[tsan] add a compile-time error for 64-bit-only support

llvm-svn: 169275

diff --git a/compiler-rt/lib/tsan/rtl/tsan_rtl.h b/compiler-rt/lib/tsan/rtl/tsan_rtl.h
index 8437ab5..af8951b 100644 (file)
--- a/compiler-rt/lib/tsan/rtl/tsan_rtl.h
+++ b/compiler-rt/lib/tsan/rtl/tsan_rtl.h
@@ -37,6 +37,10 @@
 #include "tsan_report.h"
 #include "tsan_platform.h"
 
+#if SANITIZER_WORDSIZE != 64
+# error "ThreadSanitizer is supported only on 64-bit platforms"
+#endif
+
 namespace __tsan {
 
 // Descriptor of user's memory block.