From f3ded36061ab50f34a3f890462a419079d0bf7e5 Mon Sep 17 00:00:00 2001
From: ston1th <ston1th@giftfish.de>
Date: Thu, 17 Oct 2019 22:25:51 +0200
Subject: [PATCH] Fixed mmap on OpenBSD

OpenBSD's mmap does not support `MAP_HUGETLB` and `MAP_POPULATE`.
---
 src/virtual_memory.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/virtual_memory.cpp b/src/virtual_memory.cpp
index 375ea14..fc46ae9 100644
--- a/src/virtual_memory.cpp
+++ b/src/virtual_memory.cpp
@@ -141,6 +141,8 @@ void* allocLargePagesMemory(std::size_t bytes) {
 	mem = mmap(nullptr, bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, VM_FLAGS_SUPERPAGE_SIZE_2MB, 0);
 #elif defined(__FreeBSD__)
 	mem = mmap(nullptr, bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER, -1, 0);
+#elif defined(__OpenBSD__)
+	mem = MAP_FAILED; // OpenBSD does not support huge pages
 #else
 	mem = mmap(nullptr, bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, -1, 0);
 #endif