FreeBSD/Linux Kernel Cross Reference
sys/conf/kern.post.mk
1 # $FreeBSD$
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 .MAIN: all
19
20 .for target in all clean cleandepend cleandir clobber depend install \
21 obj reinstall tags
22 ${target}: kernel-${target}
23 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
24 ${target}: modules-${target}
25 modules-${target}:
26 cd $S/modules; ${MKMODULESENV} ${MAKE} \
27 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
28 .endif
29 .endfor
30
31 # Handle ports (as defined by the user) that build kernel modules
32 .if !defined(NO_MODULES) && defined(PORTS_MODULES)
33 #
34 # The ports tree needs some environment variables defined to match the new kernel
35 #
36 # Ports search for some dependencies in PATH, so add the location of the installed files
37 LOCALBASE?= /usr/local
38 # SRC_BASE is how the ports tree refers to the location of the base source files
39 .if !defined(SRC_BASE)
40 SRC_BASE!= realpath "${SYSDIR:H}/"
41 .endif
42 # OSVERSION is used by some ports to determine build options
43 .if !defined(OSRELDATE)
44 # Definition copied from src/Makefile.inc1
45 OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
46 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h
47 .endif
48 # Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build
49 WRKDIRPREFIX?= ${MAKEOBJDIRPREFIX}${SRC_BASE}/sys/${KERNCONF}
50 PORTSMODULESENV=\
51 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \
52 SRC_BASE=${SRC_BASE} \
53 OSVERSION=${OSRELDATE} \
54 WRKDIRPREFIX=${WRKDIRPREFIX}
55
56 # The WRKDIR needs to be cleaned before building, and trying to change the target
57 # with a :C pattern below results in install -> instclean
58 all:
59 .for __i in ${PORTS_MODULES}
60 @${ECHO} "===> Ports module ${__i} (all)"
61 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean all
62 .endfor
63
64 .for __target in install reinstall clean
65 ${__target}: ports-${__target}
66 ports-${__target}:
67 .for __i in ${PORTS_MODULES}
68 @${ECHO} "===> Ports module ${__i} (${__target})"
69 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/}
70 .endfor
71 .endfor
72 .endif
73
74 .ORDER: kernel-install modules-install
75
76 kernel-all: ${KERNEL_KO} ${KERNEL_EXTRA}
77
78 kernel-cleandir: kernel-clean kernel-cleandepend
79
80 kernel-clobber:
81 find . -maxdepth 1 ! -type d ! -name version -delete
82
83 kernel-obj:
84
85 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
86 modules: modules-all
87
88 .if !defined(NO_MODULES_OBJ)
89 modules-all modules-depend: modules-obj
90 .endif
91 .endif
92
93 .if !defined(DEBUG)
94 FULLKERNEL= ${KERNEL_KO}
95 .else
96 FULLKERNEL= ${KERNEL_KO}.debug
97 ${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.symbols
98 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.symbols\
99 ${FULLKERNEL} ${.TARGET}
100 ${KERNEL_KO}.symbols: ${FULLKERNEL}
101 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
102 install.debug reinstall.debug: gdbinit
103 cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
104
105 # Install gdbinit files for kernel debugging.
106 gdbinit:
107 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
108 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
109 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
110 .if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_ARCH})
111 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_ARCH} \
112 ${.CURDIR}/gdbinit.machine
113 .endif
114 .endif
115
116 ${FULLKERNEL}: ${SYSTEM_DEP} vers.o
117 @rm -f ${.TARGET}
118 @echo linking ${.TARGET}
119 ${SYSTEM_LD}
120 .if defined(CTFMERGE)
121 ${SYSTEM_CTFMERGE}
122 .endif
123 .if !defined(DEBUG)
124 ${OBJCOPY} --strip-debug ${.TARGET}
125 .endif
126 ${SYSTEM_LD_TAIL}
127 .if defined(MFS_IMAGE)
128 @dd if="${MFS_IMAGE}" ibs=8192 of="${FULLKERNEL}" \
129 obs=`strings -at d "${FULLKERNEL}" | \
130 grep "MFS Filesystem goes here" | awk '{print $$1}'` \
131 oseek=1 conv=notrunc 2>/dev/null && \
132 strings ${FULLKERNEL} | \
133 grep 'MFS Filesystem had better STOP here' > /dev/null || \
134 (rm ${FULLKERNEL} && echo 'MFS image too large' && false)
135 .endif
136
137 .if !exists(${.OBJDIR}/.depend)
138 ${SYSTEM_OBJS}: assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} ${MFILES:T:S/.m$/.h/}
139 .endif
140
141 LNFILES= ${CFILES:T:S/.c$/.ln/}
142
143 .for mfile in ${MFILES}
144 # XXX the low quality .m.o rules gnerated by config are normally used
145 # instead of the .m.c rules here.
146 ${mfile:T:S/.m$/.c/}: ${mfile}
147 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c
148 ${mfile:T:S/.m$/.h/}: ${mfile}
149 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h
150 .endfor
151
152 kernel-clean:
153 rm -f *.o *.so *.So *.ko *.s eddep errs \
154 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.symbols \
155 linterrs makelinks tags vers.c \
156 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \
157 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \
158 ${CLEAN}
159
160 lint: ${LNFILES}
161 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \
162 tee -a linterrs
163
164 # This is a hack. BFD "optimizes" away dynamic mode if there are no
165 # dynamic references. We could probably do a '-Bforcedynamic' mode like
166 # in the a.out ld. For now, this works.
167 HACK_EXTRA_FLAGS?= -shared
168 hack.So: Makefile
169 :> hack.c
170 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.So
171 rm -f hack.c
172
173 # This rule stops ./assym.s in .depend from causing problems.
174 ./assym.s: assym.s
175
176 assym.s: $S/kern/genassym.sh genassym.o
177 NM='${NM}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
178
179 genassym.o: $S/$M/$M/genassym.c
180 ${CC} -c ${CFLAGS:N-fno-common} $S/$M/$M/genassym.c
181
182 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
183
184 kernel-depend: .depend
185 # The argument list can be very long, so use make -V and xargs to
186 # pass it to mkdep.
187 SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
188 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
189 ${MFILES:T:S/.m$/.h/}
190 .depend: .PRECIOUS ${SRCS}
191 rm -f .newdep
192 ${MAKE} -V CFILES -V SYSTEM_CFILES -V GEN_CFILES | \
193 MKDEP_CPP="${CC} -E" CC="${CC}" xargs mkdep -a -f .newdep ${CFLAGS}
194 ${MAKE} -V SFILES | \
195 MKDEP_CPP="${CC} -E" xargs mkdep -a -f .newdep ${ASM_CFLAGS}
196 rm -f .depend
197 mv .newdep .depend
198
199 _ILINKS= machine
200 .if ${MACHINE} != ${MACHINE_ARCH}
201 _ILINKS+= ${MACHINE_ARCH}
202 .endif
203
204 # Ensure that the link exists without depending on it when it exists.
205 .for _link in ${_ILINKS}
206 .if !exists(${.OBJDIR}/${_link})
207 ${SRCS}: ${_link}
208 .endif
209 .endfor
210
211 ${_ILINKS}:
212 @case ${.TARGET} in \
213 machine) \
214 path=${S}/${MACHINE}/include ;; \
215 ${MACHINE_ARCH}) \
216 path=${S}/${MACHINE_ARCH}/include ;; \
217 esac ; \
218 ${ECHO} ${.TARGET} "->" $$path ; \
219 ln -s $$path ${.TARGET}
220
221 # .depend needs include links so we remove them only together.
222 kernel-cleandepend:
223 rm -f .depend ${_ILINKS}
224
225 links:
226 egrep '#if' ${CFILES} | sed -f $S/conf/defines | \
227 sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
228 ${MAKE} -V CFILES | tr -s ' ' '\12' | sed 's/\.c/.o/' | \
229 sort -u | comm -23 - dontlink | \
230 sed 's,../.*/\(.*.o\),rm -f \1;ln -s ../GENERIC/\1 \1,' > makelinks
231 sh makelinks; rm -f dontlink
232
233 kernel-tags:
234 @[ -f .depend ] || { echo "you must make depend first"; exit 1; }
235 sh $S/conf/systags.sh
236
237 kernel-install:
238 @if [ ! -f ${KERNEL_KO} ] ; then \
239 echo "You must build a kernel first." ; \
240 exit 1 ; \
241 fi
242 .if exists(${DESTDIR}${KODIR})
243 -thiskernel=`sysctl -n kern.bootfile` ; \
244 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
245 chflags -R noschg ${DESTDIR}${KODIR} ; \
246 rm -rf ${DESTDIR}${KODIR} ; \
247 else \
248 if [ -d ${DESTDIR}${KODIR}.old ] ; then \
249 chflags -R noschg ${DESTDIR}${KODIR}.old ; \
250 rm -rf ${DESTDIR}${KODIR}.old ; \
251 fi ; \
252 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
253 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
254 fi
255 .endif
256 mkdir -p ${DESTDIR}${KODIR}
257 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
258 .if defined(DEBUG) && !defined(INSTALL_NODEBUG)
259 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
260 .endif
261 .if defined(KERNEL_EXTRA_INSTALL)
262 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}
263 .endif
264
265
266
267 kernel-reinstall:
268 @-chflags -R noschg ${DESTDIR}${KODIR}
269 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
270 .if defined(DEBUG) && !defined(INSTALL_NODEBUG)
271 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
272 .endif
273
274 config.o env.o hints.o vers.o vnode_if.o:
275 ${NORMAL_C}
276
277 config.ln env.ln hints.ln vers.ln vnode_if.ln:
278 ${NORMAL_LINT}
279
280 vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
281 MAKE=${MAKE} sh $S/conf/newvers.sh ${KERN_IDENT}
282
283 vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
284 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
285
286 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
287 $S/kern/vnode_if.src
288 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
289 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
290 vnode_if_newproto.h:
291 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
292 vnode_if_typedef.h:
293 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
294
295 # XXX strictly, everything depends on Makefile because changes to ${PROF}
296 # only appear there, but we don't handle that.
297
298 .include "kern.mk"
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