Completely rewrite the tags file creation process. use config(8) against

a fat kernel (GERERIC or GENERIC.MP) into a temporary dir, then extract some
variables using make -V, and after some more singing and dancing use this
full and (more) correct list of files with ctags.  Don't read this code.
ok guenther

1 files changed, 41 insertions, 34 deletions

diff --git a/sys/arch/sparc/Makefile b/sys/arch/sparc/Makefile
index bc623a5349f..c17217ccf9c 100644
--- a/sys/arch/sparc/Makefile
+++ b/sys/arch/sparc/Makefile
@@ -1,36 +1,43 @@
-#	$OpenBSD: Makefile,v 1.9 2005/05/06 11:16:48 pedro Exp $
-#	$NetBSD: Makefile,v 1.4 1996/03/25 22:48:09 mrg Exp $
-
-#
-# Makefile for sparc links, tags file
-
-S=${.CURDIR}/../..
-.include "$S/kern/Make.tags.inc"
-
-SUBDIR= stand
-
-NOPROG=	noprog
-NOMAN=	noman
-
-TSPARC=	$S/arch/sparc/tags
-DIRS=	conf dev fpu include rcons sbus sparc
-
-links::
-	-for i in ${DIRS}; do \
-	    (cd $$i && { rm -f tags; ln -s ${TSPARC} tags; }) done
-
-SPARC=	$S/arch/sparc/dev/*.[ch] $S/arch/sparc/fpu/*.[ch] \
-	$S/arch/sparc/include/*.[ch] $S/arch/sparc/sparc/*.[ch]
-ASPARC=	$S/arch/sparc/sparc/*.[sS] $S/lib/libkern/arch/sparc/*.[sS]
-
-tags:
-	-ctags -wdtf ${TSPARC} ${COMM} ${SPARC}
-	egrep "^ENTRY(.*)|^ALTENTRY(.*)" ${ASPARC} | \
-	    sed "s;\([^:]*\):\([^(]*\)(\([^, )]*\)\(.*\);\3	\1	/^\2(\3\4$$/;" \
-		>> ${TSPARC}
-	sort -o ${TSPARC} ${TSPARC}
-
-obj:   _SUBDIRUSE
+#	$OpenBSD: Makefile,v 1.10 2010/05/31 22:21:44 deraadt Exp $
+
+S=	${.CURDIR}/../..
+KFILE=	GENERIC
+.if exists(conf/GENERIC.MP)
+KFILE=	GENERIC.MP
+.endif
+TDIRS=	${_arch} include pci isa eisa
+TAGS=	${.CURDIR}/tags
+
+NOPROG=
+NOMAN=
+SUBDIR=	stand
+
+# config the fattest kernel we can find into a temporary dir
+# to create a Makefile.  Then use make to pull some variables
+# out and push them into the sub-shell to expand the paths,
+# and finally run ctags.
+tags::
+	TDIR=`mktemp -d /tmp/_tagXXXXXXXXXX` || exit 1; \
+	eval "S=${S}" && \
+	config -s ${S} -b $${TDIR} ${.CURDIR}/conf/${KFILE} && \
+	eval "_arch=\"`make -V _arch -f $${TDIR}/Makefile`\"" && \
+	eval "_mach=\"`make -V _mach -f $${TDIR}/Makefile`\"" && \
+	eval "_machdir=\$S/arch/$${_mach}" && \
+	eval "_archdir=\$S/arch/$${_arch}" && \
+	eval "SFILES=\"`make -V SFILES -f $${TDIR}/Makefile`\"" && \
+	eval "CFILES=\"`make -V CFILES -f $${TDIR}/Makefile`\"" && \
+	eval "AFILES=\"`make -V AFILES -f $${TDIR}/Makefile`\"" && \
+	ctags -wdt -f ${TAGS} $${CFILES} && \
+	egrep "^[_A-Z]*ENTRY[_A-Z]*\(.*\)" $${SFILES} $${AFILES} | \
+	    sed "s;\\([^:]*\\):\\([^(]*\\)(\\([^, )]*\\)\\(.*\\);\\3	\\1	/^\\2(\\3\\4$$/;" \
+	    >> ${TAGS} && \
+	sort -o ${TAGS} ${TAGS} && \
+	rm -rf $${TDIR}
+
+links:
+	-for i in conf ${TDIRS}; do \
+	    (cd $$i && rm -f tags; ln -s tags tags); done
+
+obj:	_SUBDIRUSE
 
 .include <bsd.prog.mk>
-.include <bsd.subdir.mk>