From 834fa5870c6f1260cdf300dd5db4430fbf2db485 Mon Sep 17 00:00:00 2001
From: David CARLIER <devnexen@gmail.com>
Date: Wed, 19 Jan 2022 18:56:12 +0000
Subject: [PATCH] zmalloc_get_rss openbsd implementation (#10149)

Add support for getting the RSS in OpenBSD
---
 src/zmalloc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/zmalloc.c b/src/zmalloc.c
index 6ea2ab41b..ba0368530 100644
--- a/src/zmalloc.c
+++ b/src/zmalloc.c
@@ -467,10 +467,16 @@ size_t zmalloc_get_rss(void) {
 
     return 0L;
 }
-#elif defined(__NetBSD__)
+#elif defined(__NetBSD__) || defined(__OpenBSD__)
 #include <sys/types.h>
 #include <sys/sysctl.h>
 
+#if defined(__OpenBSD__)
+#define kinfo_proc2 kinfo_proc
+#define KERN_PROC2 KERN_PROC
+#define __arraycount(a) (sizeof(a) / sizeof(a[0]))
+#endif
+
 size_t zmalloc_get_rss(void) {
     struct kinfo_proc2 info;
     size_t infolen = sizeof(info);