From de5b19526b7350b9c608ae4bf0bd80b91e51a5df Mon Sep 17 00:00:00 2001
From: Alexander Leidinger <netchild@FreeBSD.org>
Date: Fri, 25 Feb 2011 10:11:01 +0000
Subject: Add some FEATURE macros for various features
 (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ PMC/SYSV/...).

No FreeBSD version bump, the userland application to query the features will
be committed last and can serve as an indication of the availablility if
needed.

Sponsored by:   Google Summer of Code 2010
Submitted by:   kibab
Reviewed by:    arch@ (parts by rwatson, trasz, jhb)
X-MFC after:    to be determined in last commit with code from this project
---
 sys/kern/subr_stack.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sys/kern/subr_stack.c')

diff --git a/sys/kern/subr_stack.c b/sys/kern/subr_stack.c
index b719b71e27be8..c26dad84fe71a 100644
--- a/sys/kern/subr_stack.c
+++ b/sys/kern/subr_stack.c
@@ -39,6 +39,9 @@ __FBSDID("$FreeBSD$");
 #include <sys/sbuf.h>
 #include <sys/stack.h>
 #include <sys/systm.h>
+#include <sys/sysctl.h>
+
+FEATURE(stack, "Support for capturing kernel stack");
 
 static MALLOC_DEFINE(M_STACK, "stack", "Stack Traces");
 
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