1 2# Part of a unified Makefile for building kernels. This part includes all 3# the definitions that need to be after all the % directives except %RULES 4# and ones that act like they are part of %RULES. 5# 6# Most make variables should not be defined in this file. Instead, they 7# should be defined in the kern.pre.mk so that port makefiles can 8# override or augment them. 9 10.if defined(DTS) || defined(DTSO) || defined(FDT_DTS_FILE) 11.include "dtb.build.mk" 12 13KERNEL_EXTRA+= ${DTB} ${DTBO} 14CLEAN+= ${DTB} ${DTBO} 15 16kernel-install: _dtbinstall 17.ORDER: beforeinstall _dtbinstall 18.endif 19 20# In case the config had a makeoptions DESTDIR... 21.if defined(DESTDIR) 22MKMODULESENV+= DESTDIR="${DESTDIR}" 23.endif 24SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA} 25MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}" 26MKMODULESENV+= MODULE_TIED=yes 27 28.if defined(CONF_CFLAGS) 29MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}" 30.endif 31 32.if defined(WITH_CTF) 33MKMODULESENV+= WITH_CTF="${WITH_CTF}" 34.endif 35 36.if defined(WITH_EXTRA_TCP_STACKS) 37MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}" 38.endif 39 40.if !empty(KCSAN_ENABLED) 41MKMODULESENV+= KCSAN_ENABLED="yes" 42.endif 43 44.if defined(SAN_CFLAGS) 45MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}" 46.endif 47 48.if defined(GCOV_CFLAGS) 49MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}" 50.endif 51 52.if !empty(COMPAT_FREEBSD32_ENABLED) 53MKMODULESENV+= COMPAT_FREEBSD32_ENABLED="yes" 54.endif 55 56# Allow overriding the kernel debug directory, so kernel and user debug may be 57# installed in different directories. Setting it to "" restores the historical 58# behavior of installing debug files in the kernel directory. 59KERN_DEBUGDIR?= ${DEBUGDIR} 60 61.MAIN: all 62 63.if !defined(NO_MODULES) 64# Default prefix used for modules installed from ports 65LOCALBASE?= /usr/local 66 67LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 68 69# Default to installing all modules installed by ports unless overridden 70# by the user. 71.if !defined(LOCAL_MODULES) && exists(${LOCAL_MODULES_DIR}) 72LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 73.endif 74.endif 75 76.for target in all clean cleandepend cleandir clobber depend install \ 77 ${_obj} reinstall tags 78${target}: kernel-${target} 79.if !defined(NO_MODULES) 80${target}: modules-${target} 81modules-${target}: 82.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 83 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 84 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 85.endif 86.for module in ${LOCAL_MODULES} 87 @${ECHODIR} "===> ${module} (${target:S/^reinstall$/install/:S/^clobber$/cleandir/})" 88 @cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 89 DIRPRFX="${module}/" \ 90 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 91.endfor 92.endif 93.endfor 94 95# Handle ports (as defined by the user) that build kernel modules 96.if !defined(NO_MODULES) && defined(PORTS_MODULES) 97# 98# The ports tree needs some environment variables defined to match the new kernel 99# 100# SRC_BASE is how the ports tree refers to the location of the base source files 101.if !defined(SRC_BASE) 102SRC_BASE= ${SYSDIR:H:tA} 103.endif 104# OSVERSION is used by some ports to determine build options 105.if !defined(OSRELDATE) 106# Definition copied from src/Makefile.inc1 107OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 108 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 109.endif 110# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 111# 112# Ports search for some dependencies in PATH, so add the location of the 113# installed files 114WRKDIRPREFIX?= ${.OBJDIR} 115PORTSMODULESENV=\ 116 env \ 117 -u CC \ 118 -u CXX \ 119 -u CPP \ 120 -u MAKESYSPATH \ 121 -u MK_AUTO_OBJ \ 122 -u MAKEOBJDIR \ 123 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 124 SYSDIR=${SYSDIR} \ 125 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 126 SRC_BASE=${SRC_BASE} \ 127 OSVERSION=${OSRELDATE} \ 128 WRKDIRPREFIX=${WRKDIRPREFIX} 129 130# The WRKDIR needs to be cleaned before building, and trying to change the target 131# with a :C pattern below results in install -> instclean 132all: 133.for __i in ${PORTS_MODULES} 134 @${ECHO} "===> Ports module ${__i} (all)" 135 cd ${PORTSDIR:U/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 136.endfor 137 138.for __target in install reinstall clean 139${__target}: ports-${__target} 140ports-${__target}: 141.for __i in ${PORTS_MODULES} 142 @${ECHO} "===> Ports module ${__i} (${__target})" 143 cd ${PORTSDIR:U/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 144.endfor 145.endfor 146.endif 147 148.ORDER: kernel-install modules-install 149 150beforebuild: .PHONY 151kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 152 153kernel-cleandir: kernel-clean kernel-cleandepend 154 155kernel-clobber: 156 find . -maxdepth 1 ! -type d ! -name version -delete 157 158kernel-obj: 159 160.if !defined(NO_MODULES) 161modules: modules-all 162modules-depend: beforebuild 163modules-all: beforebuild 164 165.if !defined(NO_MODULES_OBJ) 166modules-all modules-depend: modules-obj 167.endif 168.endif 169 170.if !defined(DEBUG) 171FULLKERNEL= ${KERNEL_KO} 172.else 173FULLKERNEL= ${KERNEL_KO}.full 174${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 175 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 176 ${FULLKERNEL} ${.TARGET} 177${KERNEL_KO}.debug: ${FULLKERNEL} 178 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 179install.debug reinstall.debug: gdbinit 180 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 181 182# Install gdbinit files for kernel debugging. 183gdbinit: 184 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 185 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 186 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 187.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 188 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 189 ${.CURDIR}/gdbinit.machine 190.endif 191.endif 192 193${FULLKERNEL}: ${SYSTEM_DEP} vers.o 194 @rm -f ${.TARGET} 195 @echo linking ${.TARGET} 196 ${SYSTEM_LD} 197.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 198 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 199.endif 200.if ${MK_CTF} != "no" 201 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 202 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 203.endif 204.if !defined(DEBUG) 205 ${OBJCOPY} --strip-debug ${.TARGET} 206.endif 207 ${SYSTEM_LD_TAIL} 208 209OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 210 ${MFILES:T:S/.m$/.h/} 211 212.for mfile in ${MFILES} 213# XXX the low quality .m.o rules gnerated by config are normally used 214# instead of the .m.c rules here. 215${mfile:T:S/.m$/.c/}: ${mfile} 216 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 217${mfile:T:S/.m$/.h/}: ${mfile} 218 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 219.endfor 220 221kernel-clean: 222 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 223 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 224 tags vers.c \ 225 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 226 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 227 ${CLEAN} 228 229# This is a hack. BFD "optimizes" away dynamic mode if there are no 230# dynamic references. We could probably do a '-Bforcedynamic' mode like 231# in the a.out ld. For now, this works. 232force-dynamic-hack.c: 233 :> ${.TARGET} 234 235force-dynamic-hack.pico: force-dynamic-hack.c Makefile 236 ${CC} ${CCLDFLAGS} -shared ${CFLAGS} -nostdlib \ 237 force-dynamic-hack.c -o ${.TARGET} 238 239offset.inc: $S/kern/genoffset.sh genoffset.o 240 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 241 242genoffset.o: $S/kern/genoffset.c 243 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c 244 245# genoffset_test.o is not actually used for anything - the point of compiling it 246# is to exercise the CTASSERT that checks that the offsets in the offset.inc 247# _lite struct(s) match those in the original(s). 248genoffset_test.o: $S/kern/genoffset.c offset.inc 249 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ 250 $S/kern/genoffset.c -o ${.TARGET} 251 252assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 253 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 254 255genassym.o: $S/$M/$M/genassym.c offset.inc 256 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c 257 258OBJS_DEPEND_GUESS+= opt_global.h 259genoffset.o genassym.o vers.o: opt_global.h 260 261.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 262_meta_filemon= 1 263.endif 264.if ${MK_DIRDEPS_BUILD} == "no" 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.endif 281 282kernel-depend: .depend 283SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 284 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 285 ${MFILES:T:S/.m$/.h/} 286DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 287DEPENDOBJS+= ${CLEAN:M*.o} 288DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 289.if ${MAKE_VERSION} < 20160220 290DEPEND_MP?= -MP 291.endif 292.if defined(_SKIP_DEPEND) 293# Don't bother reading any .meta files 294${DEPENDOBJS}: .NOMETA 295.depend: .NOMETA 296# Unset these to avoid looping/statting on them later. 297.undef DEPENDOBJS 298.undef DEPENDFILES 299.endif # defined(_SKIP_DEPEND) 300DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 301DEPEND_CFLAGS+= -MT${.TARGET} 302.if !defined(_meta_filemon) 303.if !empty(DEPEND_CFLAGS) 304# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 305# as those are the only ones we will include. 306DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 307CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 308.endif 309.for __depend_obj in ${DEPENDFILES} 310.if ${MAKE_VERSION} < 20160220 311.sinclude "${.OBJDIR}/${__depend_obj}" 312.else 313.dinclude "${.OBJDIR}/${__depend_obj}" 314.endif 315.endfor 316.endif # !defined(_meta_filemon) 317 318# Always run 'make depend' to generate dependencies early and to avoid the 319# need for manually running it. For the kernel this is mostly a NOP since 320# all dependencies are correctly added or accounted for. This is mostly to 321# ensure downstream uses of kernel-depend are handled. 322beforebuild: kernel-depend 323 324# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 325# For meta+filemon the .meta file is checked for since it is the dependency 326# file used. 327.for __obj in ${DEPENDOBJS:O:u} 328.if defined(_meta_filemon) 329_depfile= ${.OBJDIR}/${__obj}.meta 330.else 331_depfile= ${.OBJDIR}/.depend.${__obj} 332.endif 333.if !exists(${_depfile}) 334.if ${SYSTEM_OBJS:M${__obj}} 335${__obj}: ${OBJS_DEPEND_GUESS} 336.endif 337${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 338.elif defined(_meta_filemon) 339# For meta mode we still need to know which file to depend on to avoid 340# ambiguous suffix transformation rules from .PATH. Meta mode does not 341# use .depend files. We really only need source files, not headers since 342# they are typically in SRCS/beforebuild already. For target-specific 343# guesses do include headers though since they may not be in SRCS. 344.if ${SYSTEM_OBJS:M${__obj}} 345${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 346.endif 347${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 348.endif # !exists(${_depfile}) 349.endfor 350 351.NOPATH: .depend ${DEPENDFILES} 352 353.depend: .PRECIOUS ${SRCS} 354 355_ILINKS= machine 356.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 357_ILINKS+= ${MACHINE_CPUARCH} 358.endif 359.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 360_ILINKS+= x86 361.endif 362.if ${MACHINE_CPUARCH} == "amd64" 363_ILINKS+= i386 364.endif 365 366# Ensure that the link exists without depending on it when it exists. 367# Ensure that debug info references the path in the source tree. 368.for _link in ${_ILINKS} 369.if !exists(${.OBJDIR}/${_link}) 370${SRCS} ${DEPENDOBJS}: ${_link} 371.endif 372.if ${_link} == "machine" 373CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include 374.else 375CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include 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 ${NORMAL_CTFCONVERT} 445 446NEWVERS_ENV+= MAKE="${MAKE}" 447.if ${MK_REPRODUCIBLE_BUILD} != "no" 448NEWVERS_ARGS+= -R 449.endif 450vers.c: .NOMETA_CMP $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP:Nvers.*} 451 ${NEWVERS_ENV} sh $S/conf/newvers.sh ${NEWVERS_ARGS} ${KERN_IDENT} 452 453vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 454 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 455 456vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 457 $S/kern/vnode_if.src 458vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 459 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 460vnode_if_newproto.h: 461 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 462vnode_if_typedef.h: 463 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 464 465.if ${MFS_IMAGE:Uno} != "no" 466.if empty(MD_ROOT_SIZE_CONFIGURED) 467embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} $S/dev/md/embedfs.S 468 ${CC} ${CFLAGS} ${ACFLAGS} -DMFS_IMAGE=\""${MFS_IMAGE}"\" -c \ 469 $S/dev/md/embedfs.S -o ${.TARGET} 470.endif 471.endif 472 473.include "kern.mk" 474