From 6b278b20cb0365a8b9757324b6e332cf58aef97b Mon Sep 17 00:00:00 2001
From: Luke Dashjr <luke-jr+git@utopios.org>
Date: Thu, 14 Mar 2019 13:36:24 +0000
Subject: [PATCH] lockedpool: When possible, use madvise to avoid including
 sensitive information in core dumps

---
 src/support/lockedpool.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/support/lockedpool.cpp b/src/support/lockedpool.cpp
index 6a7e5d628..ba5e418d9 100644
--- a/src/support/lockedpool.cpp
+++ b/src/support/lockedpool.cpp
@@ -257,6 +257,9 @@ void *PosixLockedPageAllocator::AllocateLocked(size_t len, bool *lockingSuccess)
     }
     if (addr) {
         *lockingSuccess = mlock(addr, len) == 0;
+#ifdef MADV_DONTDUMP
+        madvise(addr, len, MADV_DONTDUMP);
+#endif
     }
     return addr;
 }