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