[PATCH] D47146: Memorysanitizer fix mmap test for oses not supporting MAP_NORESERVE flag

[David CARLIER via Phabricator via llvm-commits]

devnexen updated this revision to Diff 147816.
devnexen retitled this revision from "Memorysanitizer fix mmap test for non Linux oses" to "Memorysanitizer fix mmap test for oses not supporting MAP_NORESERVE flag".
devnexen edited the summary of this revision.
Herald added a subscriber: emaste.

https://reviews.llvm.org/D47146

Files:
  test/msan/mmap.cc


Index: test/msan/mmap.cc
===================================================================
--- test/msan/mmap.cc
+++ test/msan/mmap.cc
@@ -63,9 +63,13 @@
   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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