From c0a2f17c064e3c8d37b5a11937e8f3c4ab5b69de Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Fri, 25 May 2018 20:30:39 +0000
Subject: [MemorySanitizer] fix mmap test for oses not implementing
 MAP_NORESERVE flag

Reviewers: krytarowski, eugenis

Reviewed By: eugenis

Differential Revision: https://review.llvm.org/D47146


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@333306 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/msan/mmap.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'test')

diff --git a/test/msan/mmap.cc b/test/msan/mmap.cc
index 65d8beeef..d83423735 100644
--- a/test/msan/mmap.cc
+++ b/test/msan/mmap.cc
@@ -63,9 +63,13 @@ int main() {
   const size_t kMapSize = 0x1000000000ULL;
 #endif
   int success_count = 0;
+  int flags = MAP_PRIVATE | MAP_ANONYMOUS;
+#if defined(MAP_NORESERVE)
+  flags |= MAP_NORESERVE;
+#endif
   while (true) {
     void *p = mmap(0, kMapSize, PROT_WRITE,
-                   MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
+                   flags, -1, 0);
     printf("%p\n", p);
     if (p == MAP_FAILED) {
       assert(errno == ENOMEM);
-- 
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