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 14KERNEL_EXTRA+= ${DTB} ${DTBO} 15CLEAN+= ${DTB} ${DTBO} 16 17kernel-install: _dtbinstall 18.ORDER: beforeinstall _dtbinstall 19.endif 20 21# In case the config had a makeoptions DESTDIR... 22.if defined(DESTDIR) 23MKMODULESENV+= DESTDIR="${DESTDIR}" 24.endif 25SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA} 26MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}" 27MKMODULESENV+= MODULE_TIED=yes 28 29.if defined(CONF_CFLAGS) 30MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}" 31.endif 32 33.if defined(WITH_CTF) 34MKMODULESENV+= WITH_CTF="${WITH_CTF}" 35.endif 36 37.if defined(WITH_EXTRA_TCP_STACKS) 38MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}" 39.endif 40 41.if !empty(KCSAN_ENABLED) 42MKMODULESENV+= KCSAN_ENABLED="yes" 43.endif 44 45.if defined(SAN_CFLAGS) 46MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}" 47.endif 48 49.if defined(GCOV_CFLAGS) 50MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}" 51.endif 52 53.if !empty(COMPAT_FREEBSD32_ENABLED) 54MKMODULESENV+= COMPAT_FREEBSD32_ENABLED="yes" 55.endif 56 57# Allow overriding the kernel debug directory, so kernel and user debug may be 58# installed in different directories. Setting it to "" restores the historical 59# behavior of installing debug files in the kernel directory. 60KERN_DEBUGDIR?= ${DEBUGDIR} 61 62.MAIN: all 63 64.if !defined(NO_MODULES) 65# Default prefix used for modules installed from ports 66LOCALBASE?= /usr/local 67 68LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 69 70# Default to installing all modules installed by ports unless overridden 71# by the user. 72.if !defined(LOCAL_MODULES) && exists(${LOCAL_MODULES_DIR}) 73LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 74.endif 75.endif 76 77.for target in all clean cleandepend cleandir clobber depend install \ 78 ${_obj} reinstall tags 79${target}: kernel-${target} 80.if !defined(NO_MODULES) 81${target}: modules-${target} 82modules-${target}: 83.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 84 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 85 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 86.endif 87.for module in ${LOCAL_MODULES} 88 @${ECHODIR} "===> ${module} (${target:S/^reinstall$/install/:S/^clobber$/cleandir/})" 89 @cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 90 DIRPRFX="${module}/" \ 91 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 92.endfor 93.endif 94.endfor 95 96# Handle ports (as defined by the user) that build kernel modules 97.if !defined(NO_MODULES) && defined(PORTS_MODULES) 98# 99# The ports tree needs some environment variables defined to match the new kernel 100# 101# SRC_BASE is how the ports tree refers to the location of the base source files 102.if !defined(SRC_BASE) 103SRC_BASE= ${SYSDIR:H:tA} 104.endif 105# OSVERSION is used by some ports to determine build options 106.if !defined(OSRELDATE) 107# Definition copied from src/Makefile.inc1 108OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 109 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 110.endif 111# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 112# 113# Ports search for some dependencies in PATH, so add the location of the 114# installed files 115WRKDIRPREFIX?= ${.OBJDIR} 116PORTSMODULESENV=\ 117 env \ 118 -u CC \ 119 -u CXX \ 120 -u CPP \ 121 -u MAKESYSPATH \ 122 -u MK_AUTO_OBJ \ 123 -u MAKEOBJDIR \ 124 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 125 SYSDIR=${SYSDIR} \ 126 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 127 SRC_BASE=${SRC_BASE} \ 128 OSVERSION=${OSRELDATE} \ 129 WRKDIRPREFIX=${WRKDIRPREFIX} 130 131# The WRKDIR needs to be cleaned before building, and trying to change the target 132# with a :C pattern below results in install -> instclean 133all: 134.for __i in ${PORTS_MODULES} 135 @${ECHO} "===> Ports module ${__i} (all)" 136 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 137.endfor 138 139.for __target in install reinstall clean 140${__target}: ports-${__target} 141ports-${__target}: 142.for __i in ${PORTS_MODULES} 143 @${ECHO} "===> Ports module ${__i} (${__target})" 144 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 145.endfor 146.endfor 147.endif 148 149.ORDER: kernel-install modules-install 150 151beforebuild: .PHONY 152kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 153 154kernel-cleandir: kernel-clean kernel-cleandepend 155 156kernel-clobber: 157 find . -maxdepth 1 ! -type d ! -name version -delete 158 159kernel-obj: 160 161.if !defined(NO_MODULES) 162modules: modules-all 163modules-depend: beforebuild 164modules-all: beforebuild 165 166.if !defined(NO_MODULES_OBJ) 167modules-all modules-depend: modules-obj 168.endif 169.endif 170 171.if !defined(DEBUG) 172FULLKERNEL= ${KERNEL_KO} 173.else 174FULLKERNEL= ${KERNEL_KO}.full 175${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 176 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 177 ${FULLKERNEL} ${.TARGET} 178${KERNEL_KO}.debug: ${FULLKERNEL} 179 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 180install.debug reinstall.debug: gdbinit 181 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 182 183# Install gdbinit files for kernel debugging. 184gdbinit: 185 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 186 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 187 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 188.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 189 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 190 ${.CURDIR}/gdbinit.machine 191.endif 192.endif 193 194${FULLKERNEL}: ${SYSTEM_DEP} vers.o 195 @rm -f ${.TARGET} 196 @echo linking ${.TARGET} 197 ${SYSTEM_LD} 198.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 199 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 200.endif 201.if ${MK_CTF} != "no" 202 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 203 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 204.endif 205.if !defined(DEBUG) 206 ${OBJCOPY} --strip-debug ${.TARGET} 207.endif 208 ${SYSTEM_LD_TAIL} 209 210OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 211 ${MFILES:T:S/.m$/.h/} 212 213.for mfile in ${MFILES} 214# XXX the low quality .m.o rules gnerated by config are normally used 215# instead of the .m.c rules here. 216${mfile:T:S/.m$/.c/}: ${mfile} 217 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 218${mfile:T:S/.m$/.h/}: ${mfile} 219 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 220.endfor 221 222kernel-clean: 223 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 224 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 225 tags vers.c \ 226 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 227 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 228 ${CLEAN} 229 230# This is a hack. BFD "optimizes" away dynamic mode if there are no 231# dynamic references. We could probably do a '-Bforcedynamic' mode like 232# in the a.out ld. For now, this works. 233force-dynamic-hack.c: 234 :> ${.TARGET} 235 236force-dynamic-hack.pico: force-dynamic-hack.c Makefile 237 ${CC} ${CCLDFLAGS} -shared ${CFLAGS} -nostdlib \ 238 force-dynamic-hack.c -o ${.TARGET} 239 240offset.inc: $S/kern/genoffset.sh genoffset.o 241 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 242 243genoffset.o: $S/kern/genoffset.c 244 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c 245 246# genoffset_test.o is not actually used for anything - the point of compiling it 247# is to exercise the CTASSERT that checks that the offsets in the offset.inc 248# _lite struct(s) match those in the original(s). 249genoffset_test.o: $S/kern/genoffset.c offset.inc 250 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ 251 $S/kern/genoffset.c -o ${.TARGET} 252 253assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 254 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 255 256genassym.o: $S/$M/$M/genassym.c offset.inc 257 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c 258 259OBJS_DEPEND_GUESS+= opt_global.h 260genoffset.o genassym.o vers.o: opt_global.h 261 262.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 263_meta_filemon= 1 264.endif 265# Skip reading .depend when not needed to speed up tree-walks and simple 266# lookups. For install, only do this if no other targets are specified. 267# Also skip generating or including .depend.* files if in meta+filemon mode 268# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 269# for _meta_filemon but not for _SKIP_DEPEND. 270.if !defined(NO_SKIP_DEPEND) && \ 271 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 272 ${.TARGETS:M*obj} == ${.TARGETS} || \ 273 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 274 ${.TARGETS:M*install*} == ${.TARGETS}) 275_SKIP_DEPEND= 1 276.endif 277.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 278.MAKE.DEPENDFILE= /dev/null 279.endif 280 281kernel-depend: .depend 282SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 283 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 284 ${MFILES:T:S/.m$/.h/} 285DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 286DEPENDOBJS+= ${CLEAN:M*.o} 287DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 288.if ${MAKE_VERSION} < 20160220 289DEPEND_MP?= -MP 290.endif 291.if defined(_SKIP_DEPEND) 292# Don't bother reading any .meta files 293${DEPENDOBJS}: .NOMETA 294.depend: .NOMETA 295# Unset these to avoid looping/statting on them later. 296.undef DEPENDOBJS 297.undef DEPENDFILES 298.endif # defined(_SKIP_DEPEND) 299DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 300DEPEND_CFLAGS+= -MT${.TARGET} 301.if !defined(_meta_filemon) 302.if !empty(DEPEND_CFLAGS) 303# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 304# as those are the only ones we will include. 305DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 306CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 307.endif 308.for __depend_obj in ${DEPENDFILES} 309.if ${MAKE_VERSION} < 20160220 310.sinclude "${.OBJDIR}/${__depend_obj}" 311.else 312.dinclude "${.OBJDIR}/${__depend_obj}" 313.endif 314.endfor 315.endif # !defined(_meta_filemon) 316 317# Always run 'make depend' to generate dependencies early and to avoid the 318# need for manually running it. For the kernel this is mostly a NOP since 319# all dependencies are correctly added or accounted for. This is mostly to 320# ensure downstream uses of kernel-depend are handled. 321beforebuild: kernel-depend 322 323# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 324# For meta+filemon the .meta file is checked for since it is the dependency 325# file used. 326.for __obj in ${DEPENDOBJS:O:u} 327.if defined(_meta_filemon) 328_depfile= ${.OBJDIR}/${__obj}.meta 329.else 330_depfile= ${.OBJDIR}/.depend.${__obj} 331.endif 332.if !exists(${_depfile}) 333.if ${SYSTEM_OBJS:M${__obj}} 334${__obj}: ${OBJS_DEPEND_GUESS} 335.endif 336${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 337.elif defined(_meta_filemon) 338# For meta mode we still need to know which file to depend on to avoid 339# ambiguous suffix transformation rules from .PATH. Meta mode does not 340# use .depend files. We really only need source files, not headers since 341# they are typically in SRCS/beforebuild already. For target-specific 342# guesses do include headers though since they may not be in SRCS. 343.if ${SYSTEM_OBJS:M${__obj}} 344${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 345.endif 346${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 347.endif # !exists(${_depfile}) 348.endfor 349 350.NOPATH: .depend ${DEPENDFILES} 351 352.depend: .PRECIOUS ${SRCS} 353 354_MAP_DEBUG_PREFIX= yes 355 356_ILINKS= machine 357.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 358_ILINKS+= ${MACHINE_CPUARCH} 359.endif 360.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 361_ILINKS+= x86 362.endif 363 364# Ensure that the link exists without depending on it when it exists. 365# Ensure that debug info references the path in the source tree. 366.for _link in ${_ILINKS} 367.if !exists(${.OBJDIR}/${_link}) 368${SRCS} ${DEPENDOBJS}: ${_link} 369.endif 370.if defined(_MAP_DEBUG_PREFIX) 371.if ${_link} == "machine" 372CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include 373.else 374CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include 375.endif 376.endif 377.endfor 378 379${_ILINKS}: 380 @case ${.TARGET} in \ 381 machine) \ 382 path=${S}/${MACHINE}/include ;; \ 383 *) \ 384 path=${S}/${.TARGET}/include ;; \ 385 esac ; \ 386 ${ECHO} ${.TARGET} "->" $$path ; \ 387 ln -fns $$path ${.TARGET} 388 389# .depend needs include links so we remove them only together. 390kernel-cleandepend: .PHONY 391 rm -f .depend .depend.* ${_ILINKS} 392 393kernel-tags: 394 @ls .depend.* > /dev/null 2>&1 || \ 395 { echo "you must make all first"; exit 1; } 396 sh $S/conf/systags.sh 397 398kernel-install: .PHONY 399 @if [ ! -f ${KERNEL_KO} ] ; then \ 400 echo "You must build a kernel first." ; \ 401 exit 1 ; \ 402 fi 403.if exists(${DESTDIR}${KODIR}) 404 -thiskernel=`sysctl -n kern.bootfile || echo /boot/kernel/kernel` ; \ 405 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 406 chflags -R noschg ${DESTDIR}${KODIR} ; \ 407 rm -rf ${DESTDIR}${KODIR} ; \ 408 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 409 else \ 410 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 411 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 412 rm -rf ${DESTDIR}${KODIR}.old ; \ 413 fi ; \ 414 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 415 if [ -n "${KERN_DEBUGDIR}" -a \ 416 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 417 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 418 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 419 fi ; \ 420 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 421 fi 422.endif 423 mkdir -p ${DESTDIR}${KODIR} 424 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 425.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 426 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 427 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 428.endif 429.if defined(KERNEL_EXTRA_INSTALL) 430 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 431.endif 432 433 434 435kernel-reinstall: 436 @-chflags -R noschg ${DESTDIR}${KODIR} 437 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 438.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 439 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 440.endif 441 442config.o env.o hints.o vers.o vnode_if.o: 443 ${NORMAL_C} 444 ${NORMAL_CTFCONVERT} 445 446.if ${MK_REPRODUCIBLE_BUILD} != "no" 447REPRO_FLAG="-R" 448.endif 449vers.c: .NOMETA_CMP $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP:Nvers.*} 450 MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 451 452vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 453 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 454 455vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 456 $S/kern/vnode_if.src 457vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 458 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 459vnode_if_newproto.h: 460 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 461vnode_if_typedef.h: 462 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 463 464.if ${MFS_IMAGE:Uno} != "no" 465.if empty(MD_ROOT_SIZE_CONFIGURED) 466embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} $S/dev/md/embedfs.S 467 ${CC} ${CFLAGS} ${ACFLAGS} -DMFS_IMAGE="${MFS_IMAGE}" -c \ 468 $S/dev/md/embedfs.S -o ${.TARGET} 469.endif 470.endif 471 472.include "kern.mk" 473