From 6a4e245b76e19c5a09b70face2ea9f9e34347469 Mon Sep 17 00:00:00 2001
From: Rui Paulo <rpaulo@FreeBSD.org>
Date: Fri, 10 Sep 2010 16:27:09 +0000
Subject: [PATCH] Add bsd.dtrace.mk. This allows userland programs and
 libraries to define USDT probes on a provider.d file and then use this new
 make infrastructure to build the corresponding header file and object file.

This will only take effect when the user defines WITH_DTRACE when building.

Sponsored by:	The FreeBSD Foundation
---
 share/mk/Makefile      |  3 ++-
 share/mk/bsd.dtrace.mk | 55 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 share/mk/bsd.dtrace.mk

diff --git a/share/mk/Makefile b/share/mk/Makefile
index f070d714eed2..f0a7cdfe4f29 100644
--- a/share/mk/Makefile
+++ b/share/mk/Makefile
@@ -3,7 +3,8 @@
 
 FILES=	bsd.README
 FILES+=	bsd.arch.inc.mk
-FILES+=	bsd.compat.mk bsd.cpu.mk bsd.dep.mk bsd.doc.mk bsd.endian.mk
+FILES+=	bsd.compat.mk bsd.cpu.mk bsd.dep.mk bsd.doc.mk bsd.dtrace.mk
+FILES+=	bsd.endian.mk
 FILES+=	bsd.files.mk bsd.incs.mk bsd.info.mk bsd.init.mk
 FILES+=	bsd.kmod.mk
 FILES+=	bsd.lib.mk bsd.libnames.mk bsd.links.mk bsd.man.mk bsd.nls.mk
diff --git a/share/mk/bsd.dtrace.mk b/share/mk/bsd.dtrace.mk
new file mode 100644
index 000000000000..bc4d90679903
--- /dev/null
+++ b/share/mk/bsd.dtrace.mk
@@ -0,0 +1,55 @@
+# $FreeBSD$
+#
+# Copyright (c) 2010 The FreeBSD Foundation 
+# All rights reserved. 
+# 
+# This software was developed by Rui Paulo under sponsorship from the
+# FreeBSD Foundation. 
+#  
+# Redistribution and use in source and binary forms, with or without 
+# modification, are permitted provided that the following conditions 
+# are met: 
+# 1. Redistributions of source code must retain the above copyright 
+#    notice, this list of conditions and the following disclaimer. 
+# 2. Redistributions in binary form must reproduce the above copyright 
+#    notice, this list of conditions and the following disclaimer in the 
+#    documentation and/or other materials provided with the distribution. 
+# 
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+# SUCH DAMAGE. 
+# 
+#
+# The only variable that you should define on your Makefile is 'DTRACEOBJS'.
+#
+
+.if defined(WITH_DTRACE)
+
+CFLAGS+=-DWITH_DTRACE
+DTRACEHEADERS=${DTRACEOBJS:S/o$/h/}
+DTRACESRCS=${DTRACEOBJS:S/o$/d/}
+CLEANFILES+=${DTRACEOBJS} ${DTRACEHEADERS}
+.if defined(PROG)
+_DTRACELINKING:=${OBJS}
+OBJS+=${DTRACEOBJS}
+.else
+_DTRACELINKING:=${SOBJS}
+SOBJS+=${DTRACEOBJS}
+.endif
+DPADD+=${LIBELF}
+LDADD+=-lelf
+
+beforedepend:
+	${DTRACE} -C -h -s ${DTRACESRCS}
+beforelinking:
+	${DTRACE} -G -s ${DTRACESRCS} ${_DTRACELINKING}
+
+.endif