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.s 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.s: $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) && (make(*obj) || \ 204 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 205 ${.TARGETS:M*install*} == ${.TARGETS}) 206_SKIP_DEPEND= 1 207.endif 208.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 209.MAKE.DEPENDFILE= /dev/null 210.endif 211 212kernel-depend: .depend 213SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 214 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 215 ${MFILES:T:S/.m$/.h/} 216DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o 217DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 218.if ${MAKE_VERSION} < 20160220 219DEPEND_MP?= -MP 220.endif 221.if defined(_SKIP_DEPEND) 222# Don't bother reading any .meta files 223${DEPENDOBJS}: .NOMETA 224.depend: .NOMETA 225# Unset these to avoid looping/statting on them later. 226.undef DEPENDOBJS 227.undef DEPENDFILES 228.endif # defined(_SKIP_DEPEND) 229DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 230DEPEND_CFLAGS+= -MT${.TARGET} 231.if !defined(_meta_filemon) 232.if !empty(DEPEND_CFLAGS) 233# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 234# as those are the only ones we will include. 235DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 236CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 237.endif 238.for __depend_obj in ${DEPENDFILES} 239.if ${MAKE_VERSION} < 20160220 240.sinclude "${.OBJDIR}/${__depend_obj}" 241.else 242.dinclude "${.OBJDIR}/${__depend_obj}" 243.endif 244.endfor 245.endif # !defined(_meta_filemon) 246 247# Always run 'make depend' to generate dependencies early and to avoid the 248# need for manually running it. For the kernel this is mostly a NOP since 249# all dependencies are correctly added or accounted for. This is mostly to 250# ensure downstream uses of kernel-depend are handled. 251beforebuild: kernel-depend 252 253# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 254# For meta+filemon the .meta file is checked for since it is the dependency 255# file used. 256.for __obj in ${DEPENDOBJS:O:u} 257.if defined(_meta_filemon) 258_depfile= ${.OBJDIR}/${__obj}.meta 259.else 260_depfile= ${.OBJDIR}/.depend.${__obj} 261.endif 262.if !exists(${_depfile}) 263.if ${SYSTEM_OBJS:M${__obj}} 264${__obj}: ${OBJS_DEPEND_GUESS} 265.endif 266${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 267.elif defined(_meta_filemon) 268# For meta mode we still need to know which file to depend on to avoid 269# ambiguous suffix transformation rules from .PATH. Meta mode does not 270# use .depend files. We really only need source files, not headers since 271# they are typically in SRCS/beforebuild already. For target-specific 272# guesses do include headers though since they may not be in SRCS. 273.if ${SYSTEM_OBJS:M${__obj}} 274${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 275.endif 276${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 277.endif # !exists(${_depfile}) 278.endfor 279 280.NOPATH: .depend ${DEPENDFILES} 281 282.depend: .PRECIOUS ${SRCS} 283 284_ILINKS= machine 285.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 286_ILINKS+= ${MACHINE_CPUARCH} 287.endif 288.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 289_ILINKS+= x86 290.endif 291 292# Ensure that the link exists without depending on it when it exists. 293.for _link in ${_ILINKS} 294.if !exists(${.OBJDIR}/${_link}) 295${SRCS} ${CLEAN:M*.o}: ${_link} 296.endif 297.endfor 298 299${_ILINKS}: 300 @case ${.TARGET} in \ 301 machine) \ 302 path=${S}/${MACHINE}/include ;; \ 303 *) \ 304 path=${S}/${.TARGET}/include ;; \ 305 esac ; \ 306 ${ECHO} ${.TARGET} "->" $$path ; \ 307 ln -fns $$path ${.TARGET} 308 309# .depend needs include links so we remove them only together. 310kernel-cleandepend: .PHONY 311 rm -f .depend .depend.* ${_ILINKS} 312 313kernel-tags: 314 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 315 sh $S/conf/systags.sh 316 317kernel-install: .PHONY 318 @if [ ! -f ${KERNEL_KO} ] ; then \ 319 echo "You must build a kernel first." ; \ 320 exit 1 ; \ 321 fi 322.if exists(${DESTDIR}${KODIR}) 323 -thiskernel=`sysctl -n kern.bootfile` ; \ 324 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 325 chflags -R noschg ${DESTDIR}${KODIR} ; \ 326 rm -rf ${DESTDIR}${KODIR} ; \ 327 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 328 else \ 329 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 330 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 331 rm -rf ${DESTDIR}${KODIR}.old ; \ 332 fi ; \ 333 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 334 if [ -n "${KERN_DEBUGDIR}" -a \ 335 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 336 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 337 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 338 fi ; \ 339 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 340 fi 341.endif 342 mkdir -p ${DESTDIR}${KODIR} 343 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 344.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 345 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 346 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 347.endif 348.if defined(KERNEL_EXTRA_INSTALL) 349 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 350.endif 351 352 353 354kernel-reinstall: 355 @-chflags -R noschg ${DESTDIR}${KODIR} 356 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 357.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 358 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 359.endif 360 361config.o env.o hints.o vers.o vnode_if.o: 362 ${NORMAL_C} 363 ${NORMAL_CTFCONVERT} 364 365.if ${MK_REPRODUCIBLE_BUILD} != "no" 366REPRO_FLAG="-r" 367.endif 368vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 369 MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 370 371vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 372 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 373 374vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 375 $S/kern/vnode_if.src 376vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 377 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 378vnode_if_newproto.h: 379 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 380vnode_if_typedef.h: 381 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 382 383.if ${MFS_IMAGE:Uno} != "no" 384.if empty(MD_ROOT_SIZE_CONFIGURED) 385# Generate an object file from the file system image to embed in the kernel 386# via linking. Make sure the contents are in the mfs section and rename the 387# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 388# respectively. 389embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 390 ${OBJCOPY} --input-target binary \ 391 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 392 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 393 ${MFS_IMAGE} ${.TARGET} 394 ${OBJCOPY} \ 395 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 396 --redefine-sym \ 397 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 398 --redefine-sym \ 399 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 400 --redefine-sym \ 401 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 402 ${.TARGET} 403.endif 404.endif 405 406# XXX strictly, everything depends on Makefile because changes to ${PROF} 407# only appear there, but we don't handle that. 408 409.include "kern.mk" 410