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