kern.post.mk revision 228158 
1# $FreeBSD: head/sys/conf/kern.post.mk 228158 2011-11-30 18:11:49Z fjoe $
2
3# Part of a unified Makefile for building kernels.  This part includes all
4# the definitions that need to be after all the % directives except %RULES
5# and ones that act like they are part of %RULES.
6#
7# Most make variables should not be defined in this file.  Instead, they
8# should be defined in the kern.pre.mk so that port makefiles can
9# override or augment them.
10
11# In case the config had a makeoptions DESTDIR...
12.if defined(DESTDIR)
13MKMODULESENV+=	DESTDIR="${DESTDIR}"
14.endif
15SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;}
16MKMODULESENV+=	KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}"
17
18.if defined(CONF_CFLAGS)
19MKMODULESENV+=	CONF_CFLAGS="${CONF_CFLAGS}"
20.endif
21
22.if defined(WITH_CTF)
23MKMODULESENV+=	WITH_CTF="${WITH_CTF}"
24.endif
25
26.MAIN: all
27
28.for target in all clean cleandepend cleandir clobber depend install \
29    obj reinstall tags
30${target}: kernel-${target}
31.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
32${target}: modules-${target}
33modules-${target}:
34	cd $S/modules; ${MKMODULESENV} ${MAKE} \
35	    ${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
36.endif
37.endfor
38
39# Handle out of tree ports 
40.if !defined(NO_MODULES) && defined(PORTS_MODULES)
41PORTSMODULESENV=SYSDIR=${SYSDIR}
42.for __target in all install reinstall clean
43${__target}: ports-${__target}
44ports-${__target}:
45.for __i in ${PORTS_MODULES}
46	cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/}
47.endfor
48.endfor
49.endif
50
51.ORDER: kernel-install modules-install
52
53kernel-all: ${KERNEL_KO} ${KERNEL_EXTRA}
54
55kernel-cleandir: kernel-clean kernel-cleandepend
56
57kernel-clobber:
58	find . -maxdepth 1 ! -type d ! -name version -delete
59
60kernel-obj:
61
62.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
63modules: modules-all
64
65.if !defined(NO_MODULES_OBJ)
66modules-all modules-depend: modules-obj
67.endif
68.endif
69
70.if !defined(DEBUG)
71FULLKERNEL=	${KERNEL_KO}
72.else
73FULLKERNEL=	${KERNEL_KO}.debug
74${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.symbols
75	${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.symbols\
76	    ${FULLKERNEL} ${.TARGET}
77${KERNEL_KO}.symbols: ${FULLKERNEL}
78	${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
79install.debug reinstall.debug: gdbinit
80	cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
81
82# Install gdbinit files for kernel debugging.
83gdbinit:
84	grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
85	    sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
86	cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
87.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH})
88	cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \
89	    ${.CURDIR}/gdbinit.machine
90.endif
91.endif
92
93${FULLKERNEL}: ${SYSTEM_DEP} vers.o
94	@rm -f ${.TARGET}
95	@echo linking ${.TARGET}
96	${SYSTEM_LD}
97.if ${MK_CTF} != "no"
98	${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
99.endif
100.if !defined(DEBUG)
101	${OBJCOPY} --strip-debug ${.TARGET}
102.endif
103	${SYSTEM_LD_TAIL}
104.if defined(MFS_IMAGE)
105	@sh ${S}/tools/embed_mfs.sh ${FULLKERNEL} ${MFS_IMAGE}
106.endif
107
108.if !exists(${.OBJDIR}/.depend)
109${SYSTEM_OBJS}: assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} ${MFILES:T:S/.m$/.h/}
110.endif
111
112LNFILES=	${CFILES:T:S/.c$/.ln/}
113
114.for mfile in ${MFILES}
115# XXX the low quality .m.o rules gnerated by config are normally used
116# instead of the .m.c rules here.
117${mfile:T:S/.m$/.c/}: ${mfile}
118	${AWK} -f $S/tools/makeobjops.awk ${mfile} -c
119${mfile:T:S/.m$/.h/}: ${mfile}
120	${AWK} -f $S/tools/makeobjops.awk ${mfile} -h
121.endfor
122
123kernel-clean:
124	rm -f *.o *.so *.So *.ko *.s eddep errs \
125	    ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.symbols \
126	    linterrs makelinks tags vers.c \
127	    vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \
128	    ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \
129	    ${CLEAN}
130
131lint: ${LNFILES}
132	${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \
133	    tee -a linterrs
134
135# This is a hack.  BFD "optimizes" away dynamic mode if there are no
136# dynamic references.  We could probably do a '-Bforcedynamic' mode like
137# in the a.out ld.  For now, this works.
138HACK_EXTRA_FLAGS?= -shared
139hack.So: Makefile
140	:> hack.c
141	${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.So
142	rm -f hack.c
143
144# This rule stops ./assym.s in .depend from causing problems.
145./assym.s: assym.s
146
147assym.s: $S/kern/genassym.sh genassym.o
148	NM='${NM}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
149
150genassym.o: $S/$M/$M/genassym.c
151	${CC} -c ${CFLAGS:N-fno-common} $S/$M/$M/genassym.c
152
153${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
154
155kernel-depend: .depend
156# The argument list can be very long, so use make -V and xargs to
157# pass it to mkdep.
158SRCS=	assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
159	${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
160	${MFILES:T:S/.m$/.h/}
161.depend: .PRECIOUS ${SRCS}
162	rm -f .newdep
163	${MAKE} -V CFILES -V SYSTEM_CFILES -V GEN_CFILES | \
164	    MKDEP_CPP="${CC} -E" CC="${CC}" xargs mkdep -a -f .newdep ${CFLAGS}
165	${MAKE} -V SFILES | \
166	    MKDEP_CPP="${CC} -E" xargs mkdep -a -f .newdep ${ASM_CFLAGS}
167	rm -f .depend
168	mv .newdep .depend
169
170_ILINKS= machine
171.if ${MACHINE} != ${MACHINE_CPUARCH}
172_ILINKS+= ${MACHINE_CPUARCH}
173.endif
174.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
175_ILINKS+= x86
176.endif
177
178# Ensure that the link exists without depending on it when it exists.
179.for _link in ${_ILINKS}
180.if !exists(${.OBJDIR}/${_link})
181${SRCS}: ${_link}
182.endif
183.endfor
184
185${_ILINKS}:
186	@case ${.TARGET} in \
187	machine) \
188		path=${S}/${MACHINE}/include ;; \
189	*) \
190		path=${S}/${.TARGET}/include ;; \
191	esac ; \
192	${ECHO} ${.TARGET} "->" $$path ; \
193	ln -s $$path ${.TARGET}
194
195# .depend needs include links so we remove them only together.
196kernel-cleandepend:
197	rm -f .depend ${_ILINKS}
198
199links:
200	egrep '#if' ${CFILES} | sed -f $S/conf/defines | \
201	    sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
202	${MAKE} -V CFILES | tr -s ' ' '\12' | sed 's/\.c/.o/' | \
203	    sort -u | comm -23 - dontlink | \
204	    sed 's,../.*/\(.*.o\),rm -f \1;ln -s ../GENERIC/\1 \1,' > makelinks
205	sh makelinks; rm -f dontlink
206
207kernel-tags:
208	@[ -f .depend ] || { echo "you must make depend first"; exit 1; }
209	sh $S/conf/systags.sh
210
211kernel-install:
212	@if [ ! -f ${KERNEL_KO} ] ; then \
213		echo "You must build a kernel first." ; \
214		exit 1 ; \
215	fi
216.if exists(${DESTDIR}${KODIR})
217	-thiskernel=`sysctl -n kern.bootfile` ; \
218	if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
219		chflags -R noschg ${DESTDIR}${KODIR} ; \
220		rm -rf ${DESTDIR}${KODIR} ; \
221	else \
222		if [ -d ${DESTDIR}${KODIR}.old ] ; then \
223			chflags -R noschg ${DESTDIR}${KODIR}.old ; \
224			rm -rf ${DESTDIR}${KODIR}.old ; \
225		fi ; \
226		mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
227		sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
228	fi
229.endif
230	mkdir -p ${DESTDIR}${KODIR}
231	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
232.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && \
233    (defined(MK_KERNEL_SYMBOLS) && ${MK_KERNEL_SYMBOLS} != "no")
234	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
235.endif
236.if defined(KERNEL_EXTRA_INSTALL)
237	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}
238.endif
239
240
241
242kernel-reinstall:
243	@-chflags -R noschg ${DESTDIR}${KODIR}
244	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
245.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && \
246    (defined(MK_KERNEL_SYMBOLS) && ${MK_KERNEL_SYMBOLS} != "no")
247	${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
248.endif
249
250config.o env.o hints.o vers.o vnode_if.o:
251	${NORMAL_C}
252	${NORMAL_CTFCONVERT}
253
254config.ln env.ln hints.ln vers.ln vnode_if.ln:
255	${NORMAL_LINT}
256
257vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
258	MAKE=${MAKE} sh $S/conf/newvers.sh ${KERN_IDENT}
259
260vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
261	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
262
263vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
264    $S/kern/vnode_if.src
265vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
266	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
267vnode_if_newproto.h:
268	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
269vnode_if_typedef.h:
270	${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
271
272# XXX strictly, everything depends on Makefile because changes to ${PROF}
273# only appear there, but we don't handle that.
274
275.include "kern.mk"
276