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 !empty(KCSAN_ENABLED) 37MKMODULESENV+= KCSAN_ENABLED="yes" 38.endif 39 40.if defined(SAN_CFLAGS) 41MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}" 42.endif 43 44.if defined(GCOV_CFLAGS) 45MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}" 46.endif 47 48.if !empty(COMPAT_FREEBSD32_ENABLED) 49MKMODULESENV+= COMPAT_FREEBSD32_ENABLED="yes" 50.endif 51 52# Allow overriding the kernel debug directory, so kernel and user debug may be 53# installed in different directories. Setting it to "" restores the historical 54# behavior of installing debug files in the kernel directory. 55KERN_DEBUGDIR?= ${DEBUGDIR} 56 57.MAIN: all 58 59.if !defined(NO_MODULES) 60# Default prefix used for modules installed from ports 61LOCALBASE?= /usr/local 62 63LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 64 65# Default to installing all modules installed by ports unless overridden 66# by the user. 67.if !defined(LOCAL_MODULES) && exists(${LOCAL_MODULES_DIR}) 68LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 69.endif 70.endif 71 72.for target in all clean cleandepend cleandir clobber depend install \ 73 ${_obj} reinstall tags 74${target}: kernel-${target} 75.if !defined(NO_MODULES) 76${target}: modules-${target} 77modules-${target}: 78.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 79 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 80 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 81.endif 82.for module in ${LOCAL_MODULES} 83 @${ECHODIR} "===> ${module} (${target:S/^reinstall$/install/:S/^clobber$/cleandir/})" 84 @cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 85 DIRPRFX="${module}/" \ 86 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 87.endfor 88.endif 89.endfor 90 91# Handle ports (as defined by the user) that build kernel modules 92.if !defined(NO_MODULES) && defined(PORTS_MODULES) 93# 94# The ports tree needs some environment variables defined to match the new kernel 95# 96# SRC_BASE is how the ports tree refers to the location of the base source files 97.if !defined(SRC_BASE) 98SRC_BASE= ${SYSDIR:H:tA} 99.endif 100# OSVERSION is used by some ports to determine build options 101.if !defined(OSRELDATE) 102# Definition copied from src/Makefile.inc1 103OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 104 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 105.endif 106# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 107# 108# Ports search for some dependencies in PATH, so add the location of the 109# installed files 110WRKDIRPREFIX?= ${.OBJDIR} 111PORTSMODULESENV=\ 112 env \ 113 -u CC \ 114 -u CXX \ 115 -u CPP \ 116 -u MAKESYSPATH \ 117 -u MK_AUTO_OBJ \ 118 -u MAKEOBJDIR \ 119 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 120 SYSDIR=${SYSDIR} \ 121 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 122 SRC_BASE=${SRC_BASE} \ 123 OSVERSION=${OSRELDATE} \ 124 WRKDIRPREFIX=${WRKDIRPREFIX} 125 126# The WRKDIR needs to be cleaned before building, and trying to change the target 127# with a :C pattern below results in install -> instclean 128all: 129.for __i in ${PORTS_MODULES} 130 @${ECHO} "===> Ports module ${__i} (all)" 131 cd ${PORTSDIR:U/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 132.endfor 133 134.for __target in install reinstall clean 135${__target}: ports-${__target} 136ports-${__target}: 137.for __i in ${PORTS_MODULES} 138 @${ECHO} "===> Ports module ${__i} (${__target})" 139 cd ${PORTSDIR:U/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 140.endfor 141.endfor 142.endif 143 144.ORDER: kernel-install modules-install 145 146beforebuild: .PHONY 147kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 148 149kernel-cleandir: kernel-clean kernel-cleandepend 150 151kernel-clobber: 152 find . -maxdepth 1 ! -type d ! -name version -delete 153 154kernel-obj: 155 156.if !defined(NO_MODULES) 157modules: modules-all 158modules-depend: beforebuild 159modules-all: beforebuild 160 161.if !defined(NO_MODULES_OBJ) 162modules-all modules-depend: modules-obj 163.endif 164.endif 165 166.if !defined(DEBUG) 167FULLKERNEL= ${KERNEL_KO} 168.else 169FULLKERNEL= ${KERNEL_KO}.full 170${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 171 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 172 ${FULLKERNEL} ${.TARGET} 173${KERNEL_KO}.debug: ${FULLKERNEL} 174 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 175install.debug reinstall.debug: gdbinit 176 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 177 178# Install gdbinit files for kernel debugging. 179gdbinit: 180 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 181 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 182 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 183.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 184 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 185 ${.CURDIR}/gdbinit.machine 186.endif 187.endif 188 189${FULLKERNEL}: ${SYSTEM_DEP} vers.o 190 @rm -f ${.TARGET} 191 @echo linking ${.TARGET} 192 ${SYSTEM_LD} 193.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 194 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 195.endif 196.if ${MK_CTF} != "no" 197 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 198 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 199.endif 200.if !defined(DEBUG) 201 ${OBJCOPY} --strip-debug ${.TARGET} 202.endif 203 ${SYSTEM_LD_TAIL} 204 205OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 206 ${MFILES:T:S/.m$/.h/} 207 208.for mfile in ${MFILES} 209# XXX the low quality .m.o rules gnerated by config are normally used 210# instead of the .m.c rules here. 211${mfile:T:S/.m$/.c/}: ${mfile} 212 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 213${mfile:T:S/.m$/.h/}: ${mfile} 214 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 215.endfor 216 217kernel-clean: 218 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 219 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 220 tags vers.c \ 221 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 222 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 223 ${CLEAN} 224 225# This is a hack. BFD "optimizes" away dynamic mode if there are no 226# dynamic references. We could probably do a '-Bforcedynamic' mode like 227# in the a.out ld. For now, this works. 228force-dynamic-hack.c: 229 :> ${.TARGET} 230 231force-dynamic-hack.pico: force-dynamic-hack.c Makefile 232 ${CC} ${CCLDFLAGS} -shared ${CFLAGS} -nostdlib \ 233 force-dynamic-hack.c -o ${.TARGET} 234 235offset.inc: $S/kern/genoffset.sh genoffset.o 236 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 237 238genoffset.o: $S/kern/genoffset.c 239 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c 240 241# genoffset_test.o is not actually used for anything - the point of compiling it 242# is to exercise the CTASSERT that checks that the offsets in the offset.inc 243# _lite struct(s) match those in the original(s). 244genoffset_test.o: $S/kern/genoffset.c offset.inc 245 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ 246 $S/kern/genoffset.c -o ${.TARGET} 247 248assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 249 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 250 251genassym.o: $S/$M/$M/genassym.c offset.inc 252 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c 253 254OBJS_DEPEND_GUESS+= opt_global.h 255genoffset.o genassym.o vers.o: opt_global.h 256 257.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 258_meta_filemon= 1 259.endif 260.if ${MK_DIRDEPS_BUILD} == "no" 261# Skip reading .depend when not needed to speed up tree-walks and simple 262# lookups. For install, only do this if no other targets are specified. 263# Also skip generating or including .depend.* files if in meta+filemon mode 264# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 265# for _meta_filemon but not for _SKIP_DEPEND. 266.if !defined(NO_SKIP_DEPEND) && \ 267 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 268 ${.TARGETS:M*obj} == ${.TARGETS} || \ 269 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 270 ${.TARGETS:M*install*} == ${.TARGETS}) 271_SKIP_DEPEND= 1 272.endif 273.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 274.MAKE.DEPENDFILE= /dev/null 275.endif 276.endif 277 278kernel-depend: .depend 279SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 280 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 281 ${MFILES:T:S/.m$/.h/} 282DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 283DEPENDOBJS+= ${CLEAN:M*.o} 284DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 285.if ${MAKE_VERSION} < 20160220 286DEPEND_MP?= -MP 287.endif 288.if defined(_SKIP_DEPEND) 289# Don't bother reading any .meta files 290${DEPENDOBJS}: .NOMETA 291.depend: .NOMETA 292# Unset these to avoid looping/statting on them later. 293.undef DEPENDOBJS 294.undef DEPENDFILES 295.endif # defined(_SKIP_DEPEND) 296DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 297DEPEND_CFLAGS+= -MT${.TARGET} 298.if !defined(_meta_filemon) 299.if !empty(DEPEND_CFLAGS) 300# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 301# as those are the only ones we will include. 302DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 303CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 304.endif 305.for __depend_obj in ${DEPENDFILES} 306.if ${MAKE_VERSION} < 20160220 307.sinclude "${.OBJDIR}/${__depend_obj}" 308.else 309.dinclude "${.OBJDIR}/${__depend_obj}" 310.endif 311.endfor 312.endif # !defined(_meta_filemon) 313 314# Always run 'make depend' to generate dependencies early and to avoid the 315# need for manually running it. For the kernel this is mostly a NOP since 316# all dependencies are correctly added or accounted for. This is mostly to 317# ensure downstream uses of kernel-depend are handled. 318beforebuild: kernel-depend 319 320# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 321# For meta+filemon the .meta file is checked for since it is the dependency 322# file used. 323.for __obj in ${DEPENDOBJS:O:u} 324.if defined(_meta_filemon) 325_depfile= ${.OBJDIR}/${__obj}.meta 326.else 327_depfile= ${.OBJDIR}/.depend.${__obj} 328.endif 329.if !exists(${_depfile}) 330.if ${SYSTEM_OBJS:M${__obj}} 331${__obj}: ${OBJS_DEPEND_GUESS} 332.endif 333${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 334.elif defined(_meta_filemon) 335# For meta mode we still need to know which file to depend on to avoid 336# ambiguous suffix transformation rules from .PATH. Meta mode does not 337# use .depend files. We really only need source files, not headers since 338# they are typically in SRCS/beforebuild already. For target-specific 339# guesses do include headers though since they may not be in SRCS. 340.if ${SYSTEM_OBJS:M${__obj}} 341${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 342.endif 343${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 344.endif # !exists(${_depfile}) 345.endfor 346 347.NOPATH: .depend ${DEPENDFILES} 348 349.depend: .PRECIOUS ${SRCS} 350 351_ILINKS= machine 352.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 353_ILINKS+= ${MACHINE_CPUARCH} 354.endif 355.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 356_ILINKS+= x86 357.endif 358.if ${MACHINE_CPUARCH} == "amd64" 359_ILINKS+= i386 360.endif 361 362# Ensure that the link exists without depending on it when it exists. 363# Ensure that debug info references the path in the source tree. 364.for _link in ${_ILINKS} 365.if !exists(${.OBJDIR}/${_link}) 366${SRCS} ${DEPENDOBJS}: ${_link} 367.endif 368.if ${_link} == "machine" 369CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include 370.else 371CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include 372.endif 373.endfor 374 375${_ILINKS}: 376 @case ${.TARGET} in \ 377 machine) \ 378 path=${S}/${MACHINE}/include ;; \ 379 *) \ 380 path=${S}/${.TARGET}/include ;; \ 381 esac ; \ 382 ${ECHO} ${.TARGET} "->" $$path ; \ 383 ln -fns $$path ${.TARGET} 384 385# .depend needs include links so we remove them only together. 386kernel-cleandepend: .PHONY 387 rm -f .depend .depend.* ${_ILINKS} 388 389kernel-tags: 390 @ls .depend.* > /dev/null 2>&1 || \ 391 { echo "you must make all first"; exit 1; } 392 sh $S/conf/systags.sh 393 394kernel-install: .PHONY 395 @if [ ! -f ${KERNEL_KO} ] ; then \ 396 echo "You must build a kernel first." ; \ 397 exit 1 ; \ 398 fi 399.if exists(${DESTDIR}${KODIR}) 400 -thiskernel=`sysctl -n kern.bootfile || echo /boot/kernel/kernel` ; \ 401 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 402 chflags -R noschg ${DESTDIR}${KODIR} ; \ 403 rm -rf ${DESTDIR}${KODIR} ; \ 404 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 405 else \ 406 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 407 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 408 rm -rf ${DESTDIR}${KODIR}.old ; \ 409 fi ; \ 410 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 411 if [ -n "${KERN_DEBUGDIR}" -a \ 412 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 413 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 414 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 415 fi ; \ 416 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 417 fi 418.endif 419 mkdir -p ${DESTDIR}${KODIR} 420 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 421.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 422 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 423 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 424.endif 425.if defined(KERNEL_EXTRA_INSTALL) 426 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 427.endif 428 429 430 431kernel-reinstall: 432 @-chflags -R noschg ${DESTDIR}${KODIR} 433 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 434.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 435 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 436.endif 437 438config.o env.o hints.o vers.o vnode_if.o: 439 ${NORMAL_C} 440 ${NORMAL_CTFCONVERT} 441 442NEWVERS_ENV+= MAKE="${MAKE}" 443.if ${MK_REPRODUCIBLE_BUILD} != "no" 444NEWVERS_ARGS+= -R 445.endif 446vers.c: .NOMETA_CMP $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP:Nvers.*} 447 ${NEWVERS_ENV} sh $S/conf/newvers.sh ${NEWVERS_ARGS} ${KERN_IDENT} 448 449vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 450 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 451 452vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 453 $S/kern/vnode_if.src 454vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 455 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 456vnode_if_newproto.h: 457 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 458vnode_if_typedef.h: 459 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 460 461.if ${MFS_IMAGE:Uno} != "no" 462.if empty(MD_ROOT_SIZE_CONFIGURED) 463embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} $S/dev/md/embedfs.S 464 ${CC} ${CFLAGS} ${ACFLAGS} -DMFS_IMAGE=\""${MFS_IMAGE}"\" -c \ 465 $S/dev/md/embedfs.S -o ${.TARGET} 466.endif 467.endif 468 469# Generate the .bin (booti images) kernel as an extra build output. 470# The targets and rules to generate these appear in Makefile.$MACHINE 471# if the platform supports it. 472.if ${MK_KERNEL_BIN} != "no" 473KERNEL_EXTRA+= ${KERNEL_KO}.bin 474KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin 475CLEAN+= ${KERNEL_KO}.bin 476.endif 477 478.include "kern.mk" 479