FreeBSD/Linux Kernel Cross Reference
sys/conf/kern.post.mk
1 # $FreeBSD: releng/8.4/sys/conf/kern.post.mk 241728 2012-10-19 11:01:39Z jhb $
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)
13 MKMODULESENV+= DESTDIR="${DESTDIR}"
14 .endif
15 SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;}
16 MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}"
17
18 .if defined(WITH_CTF)
19 MKMODULESENV+= WITH_CTF="${WITH_CTF}"
20 .endif
21
22 .MAIN: all
23
24 .for target in all clean cleandepend cleandir clobber depend install \
25 obj reinstall tags
26 ${target}: kernel-${target}
27 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
28 ${target}: modules-${target}
29 modules-${target}:
30 cd $S/modules; ${MKMODULESENV} ${MAKE} \
31 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
32 .endif
33 .endfor
34
35 # Handle ports (as defined by the user) that build kernel modules
36 .if !defined(NO_MODULES) && defined(PORTS_MODULES)
37 #
38 # The ports tree needs some environment variables defined to match the new kernel
39 #
40 # Ports search for some dependencies in PATH, so add the location of the installed files
41 LOCALBASE?= /usr/local
42 # SRC_BASE is how the ports tree refers to the location of the base source files
43 .if !defined(SRC_BASE)
44 SRC_BASE!= realpath "${SYSDIR:H}/"
45 .endif
46 # OSVERSION is used by some ports to determine build options
47 .if !defined(OSRELDATE)
48 # Definition copied from src/Makefile.inc1
49 OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
50 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h
51 .endif
52 # Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build
53 WRKDIRPREFIX?= ${MAKEOBJDIRPREFIX}${SRC_BASE}/sys/${KERNCONF}
54 PORTSMODULESENV=\
55 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \
56 SRC_BASE=${SRC_BASE} \
57 OSVERSION=${OSRELDATE} \
58 WRKDIRPREFIX=${WRKDIRPREFIX}
59
60 # The WRKDIR needs to be cleaned before building, and trying to change the target
61 # with a :C pattern below results in install -> instclean
62 all:
63 .for __i in ${PORTS_MODULES}
64 @${ECHO} "===> Ports module ${__i} (all)"
65 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean all
66 .endfor
67
68 .for __target in install reinstall clean
69 ${__target}: ports-${__target}
70 ports-${__target}:
71 .for __i in ${PORTS_MODULES}
72 @${ECHO} "===> Ports module ${__i} (${__target})"
73 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/}
74 .endfor
75 .endfor
76 .endif
77
78 .ORDER: kernel-install modules-install
79
80 kernel-all: ${KERNEL_KO} ${KERNEL_EXTRA}
81
82 kernel-cleandir: kernel-clean kernel-cleandepend
83
84 kernel-clobber:
85 find . -maxdepth 1 ! -type d ! -name version -delete
86
87 kernel-obj:
88
89 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
90 modules: modules-all
91
92 .if !defined(NO_MODULES_OBJ)
93 modules-all modules-depend: modules-obj
94 .endif
95 .endif
96
97 .if !defined(DEBUG)
98 FULLKERNEL= ${KERNEL_KO}
99 .else
100 FULLKERNEL= ${KERNEL_KO}.debug
101 ${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.symbols
102 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.symbols\
103 ${FULLKERNEL} ${.TARGET}
104 ${KERNEL_KO}.symbols: ${FULLKERNEL}
105 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
106 install.debug reinstall.debug: gdbinit
107 cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
108
109 # Install gdbinit files for kernel debugging.
110 gdbinit:
111 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
112 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
113 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
114 .if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_ARCH})
115 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_ARCH} \
116 ${.CURDIR}/gdbinit.machine
117 .endif
118 .endif
119
120 ${FULLKERNEL}: ${SYSTEM_DEP} vers.o
121 @rm -f ${.TARGET}
122 @echo linking ${.TARGET}
123 ${SYSTEM_LD}
124 .if ${MK_CTF} != "no"
125 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
126 .endif
127 .if !defined(DEBUG)
128 ${OBJCOPY} --strip-debug ${.TARGET}
129 .endif
130 ${SYSTEM_LD_TAIL}
131 .if defined(MFS_IMAGE)
132 @sh ${S}/tools/embed_mfs.sh ${FULLKERNEL} ${MFS_IMAGE}
133 .endif
134
135 .if !exists(${.OBJDIR}/.depend)
136 ${SYSTEM_OBJS}: assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} ${MFILES:T:S/.m$/.h/}
137 .endif
138
139 LNFILES= ${CFILES:T:S/.c$/.ln/}
140
141 .for mfile in ${MFILES}
142 # XXX the low quality .m.o rules gnerated by config are normally used
143 # instead of the .m.c rules here.
144 ${mfile:T:S/.m$/.c/}: ${mfile}
145 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c
146 ${mfile:T:S/.m$/.h/}: ${mfile}
147 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h
148 .endfor
149
150 kernel-clean:
151 rm -f *.o *.so *.So *.ko *.s eddep errs \
152 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.symbols \
153 linterrs makelinks tags vers.c \
154 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \
155 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \
156 ${CLEAN}
157
158 lint: ${LNFILES}
159 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \
160 tee -a linterrs
161
162 # This is a hack. BFD "optimizes" away dynamic mode if there are no
163 # dynamic references. We could probably do a '-Bforcedynamic' mode like
164 # in the a.out ld. For now, this works.
165 HACK_EXTRA_FLAGS?= -shared
166 hack.So: Makefile
167 :> hack.c
168 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.So
169 rm -f hack.c
170
171 # This rule stops ./assym.s in .depend from causing problems.
172 ./assym.s: assym.s
173
174 assym.s: $S/kern/genassym.sh genassym.o
175 NM='${NM}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
176
177 genassym.o: $S/$M/$M/genassym.c
178 ${CC} -c ${CFLAGS:N-fno-common} $S/$M/$M/genassym.c
179
180 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
181
182 kernel-depend: .depend
183 # The argument list can be very long, so use make -V and xargs to
184 # pass it to mkdep.
185 SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
186 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
187 ${MFILES:T:S/.m$/.h/}
188 .depend: .PRECIOUS ${SRCS}
189 rm -f .newdep
190 ${MAKE} -V CFILES -V SYSTEM_CFILES -V GEN_CFILES | \
191 MKDEP_CPP="${CC} -E" CC="${CC}" xargs mkdep -a -f .newdep ${CFLAGS}
192 ${MAKE} -V SFILES | \
193 MKDEP_CPP="${CC} -E" xargs mkdep -a -f .newdep ${ASM_CFLAGS}
194 rm -f .depend
195 mv .newdep .depend
196
197 _ILINKS= machine
198 .if ${MACHINE} != ${MACHINE_ARCH}
199 _ILINKS+= ${MACHINE_ARCH}
200 .endif
201
202 # Ensure that the link exists without depending on it when it exists.
203 .for _link in ${_ILINKS}
204 .if !exists(${.OBJDIR}/${_link})
205 ${SRCS}: ${_link}
206 .endif
207 .endfor
208
209 ${_ILINKS}:
210 @case ${.TARGET} in \
211 machine) \
212 path=${S}/${MACHINE}/include ;; \
213 ${MACHINE_ARCH}) \
214 path=${S}/${MACHINE_ARCH}/include ;; \
215 esac ; \
216 ${ECHO} ${.TARGET} "->" $$path ; \
217 ln -s $$path ${.TARGET}
218
219 # .depend needs include links so we remove them only together.
220 kernel-cleandepend:
221 rm -f .depend ${_ILINKS}
222
223 links:
224 egrep '#if' ${CFILES} | sed -f $S/conf/defines | \
225 sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
226 ${MAKE} -V CFILES | tr -s ' ' '\12' | sed 's/\.c/.o/' | \
227 sort -u | comm -23 - dontlink | \
228 sed 's,../.*/\(.*.o\),rm -f \1;ln -s ../GENERIC/\1 \1,' > makelinks
229 sh makelinks; rm -f dontlink
230
231 kernel-tags:
232 @[ -f .depend ] || { echo "you must make depend first"; exit 1; }
233 sh $S/conf/systags.sh
234
235 kernel-install:
236 @if [ ! -f ${KERNEL_KO} ] ; then \
237 echo "You must build a kernel first." ; \
238 exit 1 ; \
239 fi
240 .if exists(${DESTDIR}${KODIR})
241 -thiskernel=`sysctl -n kern.bootfile` ; \
242 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
243 chflags -R noschg ${DESTDIR}${KODIR} ; \
244 rm -rf ${DESTDIR}${KODIR} ; \
245 else \
246 if [ -d ${DESTDIR}${KODIR}.old ] ; then \
247 chflags -R noschg ${DESTDIR}${KODIR}.old ; \
248 rm -rf ${DESTDIR}${KODIR}.old ; \
249 fi ; \
250 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
251 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
252 fi
253 .endif
254 mkdir -p ${DESTDIR}${KODIR}
255 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
256 .if defined(DEBUG) && !defined(INSTALL_NODEBUG)
257 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
258 .endif
259 .if defined(KERNEL_EXTRA_INSTALL)
260 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}
261 .endif
262
263
264
265 kernel-reinstall:
266 @-chflags -R noschg ${DESTDIR}${KODIR}
267 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
268 .if defined(DEBUG) && !defined(INSTALL_NODEBUG)
269 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
270 .endif
271
272 config.o env.o hints.o vers.o vnode_if.o:
273 ${NORMAL_C}
274 ${NORMAL_CTFCONVERT}
275
276 config.ln env.ln hints.ln vers.ln vnode_if.ln:
277 ${NORMAL_LINT}
278
279 vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
280 MAKE=${MAKE} sh $S/conf/newvers.sh ${KERN_IDENT}
281
282 vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
283 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
284
285 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
286 $S/kern/vnode_if.src
287 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
288 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
289 vnode_if_newproto.h:
290 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
291 vnode_if_typedef.h:
292 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
293
294 # XXX strictly, everything depends on Makefile because changes to ${PROF}
295 # only appear there, but we don't handle that.
296
297 .include "kern.mk"
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