From 9d24e3f04c82a0221e5d927d3e6a773a9294b694 Mon Sep 17 00:00:00 2001
From: jasper <jasper@openbsd.org>
Date: Thu, 9 Sep 2021 20:08:15 +0000
Subject: [PATCH] add test for printing empty arguments

ok mpi@
---
 regress/usr.sbin/btrace/Makefile         | 5 +++--
 regress/usr.sbin/btrace/staticv-empty.bt | 4 ++++
 regress/usr.sbin/btrace/staticv-empty.ok | 1 +
 3 files changed, 8 insertions(+), 2 deletions(-)
 create mode 100644 regress/usr.sbin/btrace/staticv-empty.bt
 create mode 100644 regress/usr.sbin/btrace/staticv-empty.ok

diff --git a/regress/usr.sbin/btrace/Makefile b/regress/usr.sbin/btrace/Makefile
index bbe18079024..30b63b411e4 100644
--- a/regress/usr.sbin/btrace/Makefile
+++ b/regress/usr.sbin/btrace/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.20 2021/09/09 19:02:50 jasper Exp $
+# $OpenBSD: Makefile,v 1.21 2021/09/09 20:08:15 jasper Exp $
 
 BTRACE?=		 /usr/sbin/btrace
 ALLOWDT!=		sysctl -n kern.allowdt
@@ -8,7 +8,8 @@ BT_LANG_SCRIPTS=	arithm beginend boolean comments delete exit \
 			histempty if \
 			map mapclear mapempty mapsyntax mapzero map-unnamed \
 			maxoperand min+max+sum multismts nsecs+var \
-			precedence print read-map-after-clear syntaxerror
+			precedence print read-map-after-clear staticv-empty \
+			syntaxerror
 
 # scripts that use kernel probes
 BT_KERN_SCRIPTS=	multiprobe
diff --git a/regress/usr.sbin/btrace/staticv-empty.bt b/regress/usr.sbin/btrace/staticv-empty.bt
new file mode 100644
index 00000000000..288ba32f56f
--- /dev/null
+++ b/regress/usr.sbin/btrace/staticv-empty.bt
@@ -0,0 +1,4 @@
+BEGIN
+{
+	printf("'%s'\n", $1);
+}
diff --git a/regress/usr.sbin/btrace/staticv-empty.ok b/regress/usr.sbin/btrace/staticv-empty.ok
new file mode 100644
index 00000000000..a614936fa46
--- /dev/null
+++ b/regress/usr.sbin/btrace/staticv-empty.ok
@@ -0,0 +1 @@
+''
-- 
2.20.1