[PATCH] D48257: [asan] Use MADV_NOCORE for use_madv_dontdump on FreeBSD.

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: dimitry, kcc.
Herald added subscribers: Sanitizers, llvm-commits, delcypher, kubamracek.

Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D48257

Files:
  lib/sanitizer_common/sanitizer_posix_libcdep.cc


Index: lib/sanitizer_common/sanitizer_posix_libcdep.cc
===================================================================
--- lib/sanitizer_common/sanitizer_posix_libcdep.cc
+++ lib/sanitizer_common/sanitizer_posix_libcdep.cc
@@ -78,8 +78,10 @@
 }
 
 bool DontDumpShadowMemory(uptr addr, uptr length) {
-#ifdef MADV_DONTDUMP
+#if defined(MADV_DONTDUMP)
   return madvise((void *)addr, length, MADV_DONTDUMP) == 0;
+#elif defined(MADV_NOCORE)
+  return madvise((void *)addr, length, MADV_NOCORE) == 0;
 #else
   return true;
 #endif  // MADV_DONTDUMP


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