Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/conf/kern.post.mk
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
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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 .if defined(DTS) || defined(DTSO) || defined(FDT_DTS_FILE) 12 .include "dtb.build.mk" 13 14 KERNEL_EXTRA+= ${DTB} ${DTBO} 15 CLEAN+= ${DTB} ${DTBO} 16 17 kernel-install: _dtbinstall 18 .ORDER: beforeinstall _dtbinstall 19 .endif 20 21 # In case the config had a makeoptions DESTDIR... 22 .if defined(DESTDIR) 23 MKMODULESENV+= DESTDIR="${DESTDIR}" 24 .endif 25 SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA} 26 MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}" 27 MKMODULESENV+= MODULE_TIED=yes 28 29 .if defined(CONF_CFLAGS) 30 MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}" 31 .endif 32 33 .if defined(WITH_CTF) 34 MKMODULESENV+= WITH_CTF="${WITH_CTF}" 35 .endif 36 37 .if defined(WITH_EXTRA_TCP_STACKS) 38 MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}" 39 .endif 40 41 # Allow overriding the kernel debug directory, so kernel and user debug may be 42 # installed in different directories. Setting it to "" restores the historical 43 # behavior of installing debug files in the kernel directory. 44 KERN_DEBUGDIR?= ${DEBUGDIR} 45 46 .MAIN: all 47 48 .for target in all clean cleandepend cleandir clobber depend install \ 49 ${_obj} reinstall tags 50 ${target}: kernel-${target} 51 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules) 52 ${target}: modules-${target} 53 modules-${target}: 54 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 55 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 56 .endif 57 .endfor 58 59 # Handle ports (as defined by the user) that build kernel modules 60 .if !defined(NO_MODULES) && defined(PORTS_MODULES) 61 # 62 # The ports tree needs some environment variables defined to match the new kernel 63 # 64 # Ports search for some dependencies in PATH, so add the location of the installed files 65 LOCALBASE?= /usr/local 66 # SRC_BASE is how the ports tree refers to the location of the base source files 67 .if !defined(SRC_BASE) 68 SRC_BASE= ${SYSDIR:H:tA} 69 .endif 70 # OSVERSION is used by some ports to determine build options 71 .if !defined(OSRELDATE) 72 # Definition copied from src/Makefile.inc1 73 OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 74 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 75 .endif 76 # Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 77 WRKDIRPREFIX?= ${.OBJDIR} 78 PORTSMODULESENV=\ 79 env \ 80 -u CC \ 81 -u CXX \ 82 -u CPP \ 83 -u MAKESYSPATH \ 84 -u MK_AUTO_OBJ \ 85 -u MAKEOBJDIR \ 86 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 87 SYSDIR=${SYSDIR} \ 88 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 89 SRC_BASE=${SRC_BASE} \ 90 OSVERSION=${OSRELDATE} \ 91 WRKDIRPREFIX=${WRKDIRPREFIX} 92 93 # The WRKDIR needs to be cleaned before building, and trying to change the target 94 # with a :C pattern below results in install -> instclean 95 all: 96 .for __i in ${PORTS_MODULES} 97 @${ECHO} "===> Ports module ${__i} (all)" 98 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 99 .endfor 100 101 .for __target in install reinstall clean 102 ${__target}: ports-${__target} 103 ports-${__target}: 104 .for __i in ${PORTS_MODULES} 105 @${ECHO} "===> Ports module ${__i} (${__target})" 106 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 107 .endfor 108 .endfor 109 .endif 110 111 .ORDER: kernel-install modules-install 112 113 beforebuild: .PHONY 114 kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 115 116 kernel-cleandir: kernel-clean kernel-cleandepend 117 118 kernel-clobber: 119 find . -maxdepth 1 ! -type d ! -name version -delete 120 121 kernel-obj: 122 123 .if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules) 124 modules: modules-all 125 modules-depend: beforebuild 126 modules-all: beforebuild 127 128 .if !defined(NO_MODULES_OBJ) 129 modules-all modules-depend: modules-obj 130 .endif 131 .endif 132 133 .if !defined(DEBUG) 134 FULLKERNEL= ${KERNEL_KO} 135 .else 136 FULLKERNEL= ${KERNEL_KO}.full 137 ${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 138 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 139 ${FULLKERNEL} ${.TARGET} 140 ${KERNEL_KO}.debug: ${FULLKERNEL} 141 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 142 install.debug reinstall.debug: gdbinit 143 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 144 145 # Install gdbinit files for kernel debugging. 146 gdbinit: 147 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 148 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 149 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 150 .if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 151 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 152 ${.CURDIR}/gdbinit.machine 153 .endif 154 .endif 155 156 ${FULLKERNEL}: ${SYSTEM_DEP} vers.o 157 @rm -f ${.TARGET} 158 @echo linking ${.TARGET} 159 ${SYSTEM_LD} 160 .if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 161 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 162 .endif 163 .if ${MK_CTF} != "no" 164 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 165 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 166 .endif 167 .if !defined(DEBUG) 168 ${OBJCOPY} --strip-debug ${.TARGET} 169 .endif 170 ${SYSTEM_LD_TAIL} 171 172 OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 173 ${MFILES:T:S/.m$/.h/} 174 175 .for mfile in ${MFILES} 176 # XXX the low quality .m.o rules gnerated by config are normally used 177 # instead of the .m.c rules here. 178 ${mfile:T:S/.m$/.c/}: ${mfile} 179 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 180 ${mfile:T:S/.m$/.h/}: ${mfile} 181 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 182 .endfor 183 184 kernel-clean: 185 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 186 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 187 tags vers.c \ 188 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 189 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 190 ${CLEAN} 191 192 # This is a hack. BFD "optimizes" away dynamic mode if there are no 193 # dynamic references. We could probably do a '-Bforcedynamic' mode like 194 # in the a.out ld. For now, this works. 195 hack.pico: Makefile 196 :> hack.c 197 ${CC} -shared ${CFLAGS} -nostdlib hack.c -o hack.pico 198 rm -f hack.c 199 200 offset.inc: $S/kern/genoffset.sh genoffset.o 201 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 202 203 genoffset.o: $S/kern/genoffset.c 204 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c 205 206 # genoffset_test.o is not actually used for anything - the point of compiling it 207 # is to exercise the CTASSERT that checks that the offsets in the offset.inc 208 # _lite struct(s) match those in the original(s). 209 genoffset_test.o: $S/kern/genoffset.c offset.inc 210 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ 211 $S/kern/genoffset.c -o ${.TARGET} 212 213 assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 214 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 215 216 genassym.o: $S/$M/$M/genassym.c offset.inc 217 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c 218 219 OBJS_DEPEND_GUESS+= opt_global.h 220 genoffset.o genassym.o vers.o: opt_global.h 221 222 .if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 223 _meta_filemon= 1 224 .endif 225 # Skip reading .depend when not needed to speed up tree-walks and simple 226 # lookups. For install, only do this if no other targets are specified. 227 # Also skip generating or including .depend.* files if in meta+filemon mode 228 # since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 229 # for _meta_filemon but not for _SKIP_DEPEND. 230 .if !defined(NO_SKIP_DEPEND) && \ 231 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 232 ${.TARGETS:M*obj} == ${.TARGETS} || \ 233 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 234 ${.TARGETS:M*install*} == ${.TARGETS}) 235 _SKIP_DEPEND= 1 236 .endif 237 .if defined(_SKIP_DEPEND) || defined(_meta_filemon) 238 .MAKE.DEPENDFILE= /dev/null 239 .endif 240 241 kernel-depend: .depend 242 SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 243 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 244 ${MFILES:T:S/.m$/.h/} 245 DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 246 DEPENDOBJS+= ${CLEAN:M*.o} 247 DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 248 .if ${MAKE_VERSION} < 20160220 249 DEPEND_MP?= -MP 250 .endif 251 .if defined(_SKIP_DEPEND) 252 # Don't bother reading any .meta files 253 ${DEPENDOBJS}: .NOMETA 254 .depend: .NOMETA 255 # Unset these to avoid looping/statting on them later. 256 .undef DEPENDOBJS 257 .undef DEPENDFILES 258 .endif # defined(_SKIP_DEPEND) 259 DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 260 DEPEND_CFLAGS+= -MT${.TARGET} 261 .if !defined(_meta_filemon) 262 .if !empty(DEPEND_CFLAGS) 263 # Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 264 # as those are the only ones we will include. 265 DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 266 CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 267 .endif 268 .for __depend_obj in ${DEPENDFILES} 269 .if ${MAKE_VERSION} < 20160220 270 .sinclude "${.OBJDIR}/${__depend_obj}" 271 .else 272 .dinclude "${.OBJDIR}/${__depend_obj}" 273 .endif 274 .endfor 275 .endif # !defined(_meta_filemon) 276 277 # Always run 'make depend' to generate dependencies early and to avoid the 278 # need for manually running it. For the kernel this is mostly a NOP since 279 # all dependencies are correctly added or accounted for. This is mostly to 280 # ensure downstream uses of kernel-depend are handled. 281 beforebuild: kernel-depend 282 283 # Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 284 # For meta+filemon the .meta file is checked for since it is the dependency 285 # file used. 286 .for __obj in ${DEPENDOBJS:O:u} 287 .if defined(_meta_filemon) 288 _depfile= ${.OBJDIR}/${__obj}.meta 289 .else 290 _depfile= ${.OBJDIR}/.depend.${__obj} 291 .endif 292 .if !exists(${_depfile}) 293 .if ${SYSTEM_OBJS:M${__obj}} 294 ${__obj}: ${OBJS_DEPEND_GUESS} 295 .endif 296 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 297 .elif defined(_meta_filemon) 298 # For meta mode we still need to know which file to depend on to avoid 299 # ambiguous suffix transformation rules from .PATH. Meta mode does not 300 # use .depend files. We really only need source files, not headers since 301 # they are typically in SRCS/beforebuild already. For target-specific 302 # guesses do include headers though since they may not be in SRCS. 303 .if ${SYSTEM_OBJS:M${__obj}} 304 ${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 305 .endif 306 ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 307 .endif # !exists(${_depfile}) 308 .endfor 309 310 .NOPATH: .depend ${DEPENDFILES} 311 312 .depend: .PRECIOUS ${SRCS} 313 314 .if ${COMPILER_TYPE} == "clang" || \ 315 (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000) 316 _MAP_DEBUG_PREFIX= yes 317 .endif 318 319 _ILINKS= machine 320 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 321 _ILINKS+= ${MACHINE_CPUARCH} 322 .endif 323 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 324 _ILINKS+= x86 325 .endif 326 327 # Ensure that the link exists without depending on it when it exists. 328 # Ensure that debug info references the path in the source tree. 329 .for _link in ${_ILINKS} 330 .if !exists(${.OBJDIR}/${_link}) 331 ${SRCS} ${DEPENDOBJS}: ${_link} 332 .endif 333 .if defined(_MAP_DEBUG_PREFIX) 334 .if ${_link} == "machine" 335 CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include 336 .else 337 CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include 338 .endif 339 .endif 340 .endfor 341 342 ${_ILINKS}: 343 @case ${.TARGET} in \ 344 machine) \ 345 path=${S}/${MACHINE}/include ;; \ 346 *) \ 347 path=${S}/${.TARGET}/include ;; \ 348 esac ; \ 349 ${ECHO} ${.TARGET} "->" $$path ; \ 350 ln -fns $$path ${.TARGET} 351 352 # .depend needs include links so we remove them only together. 353 kernel-cleandepend: .PHONY 354 rm -f .depend .depend.* ${_ILINKS} 355 356 kernel-tags: 357 @ls .depend.* > /dev/null 2>&1 || \ 358 { echo "you must make all first"; exit 1; } 359 sh $S/conf/systags.sh 360 361 kernel-install: .PHONY 362 @if [ ! -f ${KERNEL_KO} ] ; then \ 363 echo "You must build a kernel first." ; \ 364 exit 1 ; \ 365 fi 366 .if exists(${DESTDIR}${KODIR}) 367 -thiskernel=`sysctl -n kern.bootfile` ; \ 368 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 369 chflags -R noschg ${DESTDIR}${KODIR} ; \ 370 rm -rf ${DESTDIR}${KODIR} ; \ 371 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 372 else \ 373 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 374 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 375 rm -rf ${DESTDIR}${KODIR}.old ; \ 376 fi ; \ 377 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 378 if [ -n "${KERN_DEBUGDIR}" -a \ 379 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 380 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 381 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 382 fi ; \ 383 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 384 fi 385 .endif 386 mkdir -p ${DESTDIR}${KODIR} 387 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 388 .if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 389 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 390 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 391 .endif 392 .if defined(KERNEL_EXTRA_INSTALL) 393 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 394 .endif 395 396 397 398 kernel-reinstall: 399 @-chflags -R noschg ${DESTDIR}${KODIR} 400 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 401 .if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 402 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 403 .endif 404 405 config.o env.o hints.o vers.o vnode_if.o: 406 ${NORMAL_C} 407 ${NORMAL_CTFCONVERT} 408 409 .if ${MK_REPRODUCIBLE_BUILD} != "no" 410 REPRO_FLAG="-R" 411 .endif 412 vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 413 MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 414 415 vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 416 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 417 418 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 419 $S/kern/vnode_if.src 420 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 421 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 422 vnode_if_newproto.h: 423 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 424 vnode_if_typedef.h: 425 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 426 427 .if ${MFS_IMAGE:Uno} != "no" 428 .if empty(MD_ROOT_SIZE_CONFIGURED) 429 embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} $S/dev/md/embedfs.S 430 ${CC} ${CFLAGS} ${ACFLAGS} -DMFS_IMAGE="${MFS_IMAGE}" -c \ 431 $S/dev/md/embedfs.S -o ${.TARGET} 432 .endif 433 .endif 434 435 # XXX strictly, everything depends on Makefile because changes to ${PROF} 436 # only appear there, but we don't handle that. 437 438 .include "kern.mk"
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