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.
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.
11 # In case the config had a makeoptions DESTDIR...
13 MKMODULESENV+= DESTDIR="${DESTDIR}"
15 SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;}
16 MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}"
18 .if defined(CONF_CFLAGS)
19 MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}"
23 MKMODULESENV+= WITH_CTF="${WITH_CTF}"
28 .for target in all clean cleandepend cleandir clobber depend install \
30 ${target}: kernel-${target}
31 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
32 ${target}: modules-${target}
34 cd $S/modules; ${MKMODULESENV} ${MAKE} \
35 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
39 # Handle ports (as defined by the user) that build kernel modules
40 .if !defined(NO_MODULES) && defined(PORTS_MODULES)
42 # The ports tree needs some environment variables defined to match the new kernel
44 # Ports search for some dependencies in PATH, so add the location of the installed files
45 LOCALBASE?= /usr/local
46 # SRC_BASE is how the ports tree refers to the location of the base source files
47 .if !defined(SRC_BASE)
48 SRC_BASE!= realpath "${SYSDIR:H}/"
50 # OSVERSION is used by some ports to determine build options
51 .if !defined(OSRELDATE)
52 # Definition copied from src/Makefile.inc1
53 OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
54 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h
56 # Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build
57 WRKDIRPREFIX?= ${MAKEOBJDIRPREFIX}${SRC_BASE}/sys/${KERNCONF}
59 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \
60 SRC_BASE=${SRC_BASE} \
61 OSVERSION=${OSRELDATE} \
62 WRKDIRPREFIX=${WRKDIRPREFIX}
64 # The WRKDIR needs to be cleaned before building, and trying to change the target
65 # with a :C pattern below results in install -> instclean
67 .for __i in ${PORTS_MODULES}
68 @${ECHO} "===> Ports module ${__i} (all)"
69 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean all
72 .for __target in install reinstall clean
73 ${__target}: ports-${__target}
75 .for __i in ${PORTS_MODULES}
76 @${ECHO} "===> Ports module ${__i} (${__target})"
77 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/}
82 .ORDER: kernel-install modules-install
84 kernel-all: ${KERNEL_KO} ${KERNEL_EXTRA}
86 kernel-cleandir: kernel-clean kernel-cleandepend
89 find . -maxdepth 1 ! -type d ! -name version -delete
93 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
96 .if !defined(NO_MODULES_OBJ)
97 modules-all modules-depend: modules-obj
102 FULLKERNEL= ${KERNEL_KO}
104 FULLKERNEL= ${KERNEL_KO}.debug
105 ${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.symbols
106 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.symbols\
107 ${FULLKERNEL} ${.TARGET}
108 ${KERNEL_KO}.symbols: ${FULLKERNEL}
109 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
110 install.debug reinstall.debug: gdbinit
111 cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
113 # Install gdbinit files for kernel debugging.
115 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
116 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
117 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
118 .if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH})
119 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \
120 ${.CURDIR}/gdbinit.machine
124 ${FULLKERNEL}: ${SYSTEM_DEP} vers.o
126 @echo linking ${.TARGET}
130 ${OBJCOPY} --strip-debug ${.TARGET}
133 .if defined(MFS_IMAGE)
134 @sh ${S}/tools/embed_mfs.sh ${FULLKERNEL} ${MFS_IMAGE}
137 .if !exists(${.OBJDIR}/.depend)
138 ${SYSTEM_OBJS}: assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} ${MFILES:T:S/.m$/.h/}
141 LNFILES= ${CFILES:T:S/.c$/.ln/}
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
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/} \
161 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \
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
170 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.So
173 # This rule stops ./assym.s in .depend from causing problems.
176 assym.s: $S/kern/genassym.sh genassym.o
177 NM='${NM}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
179 genassym.o: $S/$M/$M/genassym.c
180 ${CC} -c ${CFLAGS:N-fno-common} $S/$M/$M/genassym.c
182 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
184 kernel-depend: .depend
185 # The argument list can be very long, so use make -V and xargs to
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}
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}
200 .if ${MACHINE} != ${MACHINE_CPUARCH}
201 _ILINKS+= ${MACHINE_CPUARCH}
203 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
207 # Ensure that the link exists without depending on it when it exists.
208 .for _link in ${_ILINKS}
209 .if !exists(${.OBJDIR}/${_link})
215 @case ${.TARGET} in \
217 path=${S}/${MACHINE}/include ;; \
219 path=${S}/${.TARGET}/include ;; \
221 ${ECHO} ${.TARGET} "->" $$path ; \
222 ln -s $$path ${.TARGET}
224 # .depend needs include links so we remove them only together.
226 rm -f .depend ${_ILINKS}
229 egrep '#if' ${CFILES} | sed -f $S/conf/defines | \
230 sed -e 's/:.*//' -e 's/\.c/.o/' | sort -u > dontlink
231 ${MAKE} -V CFILES | tr -s ' ' '\12' | sed 's/\.c/.o/' | \
232 sort -u | comm -23 - dontlink | \
233 sed 's,../.*/\(.*.o\),rm -f \1;ln -s ../GENERIC/\1 \1,' > makelinks
234 sh makelinks; rm -f dontlink
237 @[ -f .depend ] || { echo "you must make depend first"; exit 1; }
238 sh $S/conf/systags.sh
241 @if [ ! -f ${KERNEL_KO} ] ; then \
242 echo "You must build a kernel first." ; \
245 .if exists(${DESTDIR}${KODIR})
246 -thiskernel=`sysctl -n kern.bootfile` ; \
247 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
248 chflags -R noschg ${DESTDIR}${KODIR} ; \
249 rm -rf ${DESTDIR}${KODIR} ; \
251 if [ -d ${DESTDIR}${KODIR}.old ] ; then \
252 chflags -R noschg ${DESTDIR}${KODIR}.old ; \
253 rm -rf ${DESTDIR}${KODIR}.old ; \
255 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
256 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
259 mkdir -p ${DESTDIR}${KODIR}
260 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
261 .if defined(DEBUG) && !defined(INSTALL_NODEBUG) && \
262 (defined(MK_KERNEL_SYMBOLS) && ${MK_KERNEL_SYMBOLS} != "no")
263 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
265 .if defined(KERNEL_EXTRA_INSTALL)
266 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}
272 @-chflags -R noschg ${DESTDIR}${KODIR}
273 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}
274 .if defined(DEBUG) && !defined(INSTALL_NODEBUG) && \
275 (defined(MK_KERNEL_SYMBOLS) && ${MK_KERNEL_SYMBOLS} != "no")
276 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.symbols ${DESTDIR}${KODIR}
279 config.o env.o hints.o vers.o vnode_if.o:
281 @[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
283 config.ln env.ln hints.ln vers.ln vnode_if.ln:
286 vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
287 MAKE=${MAKE} sh $S/conf/newvers.sh ${KERN_IDENT}
289 vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
290 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
292 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
294 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
295 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
297 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
299 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
301 # XXX strictly, everything depends on Makefile because changes to ${PROF}
302 # only appear there, but we don't handle that.