[compiler-rt] r223469 - tsan: fix test

[Dmitry Vyukov]

Author: dvyukov
Date: Fri Dec  5 09:42:17 2014
New Revision: 223469

URL: http://llvm.org/viewvc/llvm-project?rev=223469&view=rev
Log:
tsan: fix test

this test is flaky because of ASLR
app memory is 7e8000000000-800000000000,
there may or may not be a 1TB hole depending on
where ASLR will choose to map libraries


Modified:
    compiler-rt/trunk/test/tsan/mmap_large.cc

Modified: compiler-rt/trunk/test/tsan/mmap_large.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/tsan/mmap_large.cc?rev=223469&r1=223468&r2=223469&view=diff
==============================================================================
--- compiler-rt/trunk/test/tsan/mmap_large.cc (original)
+++ compiler-rt/trunk/test/tsan/mmap_large.cc Fri Dec  5 09:42:17 2014
@@ -1,10 +1,11 @@
 // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
 #include <stdint.h>
 #include <stdio.h>
+#include <errno.h>
 #include <sys/mman.h>
 
 int main() {
-  const size_t kLog2Size = 40;
+  const size_t kLog2Size = 39;
   const uintptr_t kLocation = 0x40ULL << kLog2Size;
   void *p = mmap(
       reinterpret_cast<void*>(kLocation),
@@ -12,7 +13,7 @@ int main() {
       PROT_READ|PROT_WRITE,
       MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,
       -1, 0);
-  fprintf(stderr, "DONE %p\n", p);
+  fprintf(stderr, "DONE %p %d\n", p, errno);
   return p == MAP_FAILED;
 }