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 $$3 }' \ 63 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 64.endif 65# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 66WRKDIRPREFIX?= ${.OBJDIR} 67PORTSMODULESENV=\ 68 env \ 69 -u CC \ 70 -u CXX \ 71 -u CPP \ 72 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 73 SRC_BASE=${SRC_BASE} \ 74 OSVERSION=${OSRELDATE} \ 75 WRKDIRPREFIX=${WRKDIRPREFIX} 76 77# The WRKDIR needs to be cleaned before building, and trying to change the target 78# with a :C pattern below results in install -> instclean 79all: 80.for __i in ${PORTS_MODULES} 81 @${ECHO} "===> Ports module ${__i} (all)" 82 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 83.endfor 84 85.for __target in install reinstall clean 86${__target}: ports-${__target} 87ports-${__target}: 88.for __i in ${PORTS_MODULES} 89 @${ECHO} "===> Ports module ${__i} (${__target})" 90 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/} 91.endfor 92.endfor 93.endif 94 95.ORDER: kernel-install modules-install 96 97beforebuild: .PHONY 98kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 99 100kernel-cleandir: kernel-clean kernel-cleandepend 101 102kernel-clobber: 103 find . -maxdepth 1 ! -type d ! -name version -delete 104 105kernel-obj: 106 107.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules) 108modules: modules-all 109 110.if !defined(NO_MODULES_OBJ) 111modules-all modules-depend: modules-obj 112.endif 113.endif 114 115.if !defined(DEBUG) 116FULLKERNEL= ${KERNEL_KO} 117.else 118FULLKERNEL= ${KERNEL_KO}.full 119${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 120 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 121 ${FULLKERNEL} ${.TARGET} 122${KERNEL_KO}.debug: ${FULLKERNEL} 123 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 124install.debug reinstall.debug: gdbinit 125 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 126 127# Install gdbinit files for kernel debugging. 128gdbinit: 129 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 130 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 131 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 132.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 133 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 134 ${.CURDIR}/gdbinit.machine 135.endif 136.endif 137 138${FULLKERNEL}: ${SYSTEM_DEP} vers.o 139 @rm -f ${.TARGET} 140 @echo linking ${.TARGET} 141 ${SYSTEM_LD} 142.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 143 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 144.endif 145.if ${MK_CTF} != "no" 146 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 147 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 148.endif 149.if !defined(DEBUG) 150 ${OBJCOPY} --strip-debug ${.TARGET} 151.endif 152 ${SYSTEM_LD_TAIL} 153 154OBJS_DEPEND_GUESS+= assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} \ 155 ${MFILES:T:S/.m$/.h/} 156LNFILES= ${CFILES:T:S/.c$/.ln/} 157 158.for mfile in ${MFILES} 159# XXX the low quality .m.o rules gnerated by config are normally used 160# instead of the .m.c rules here. 161${mfile:T:S/.m$/.c/}: ${mfile} 162 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 163${mfile:T:S/.m$/.h/}: ${mfile} 164 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 165.endfor 166 167kernel-clean: 168 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 169 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 170 linterrs tags vers.c \ 171 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 172 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 173 ${CLEAN} 174 175lint: ${LNFILES} 176 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \ 177 tee -a linterrs 178 179# This is a hack. BFD "optimizes" away dynamic mode if there are no 180# dynamic references. We could probably do a '-Bforcedynamic' mode like 181# in the a.out ld. For now, this works. 182HACK_EXTRA_FLAGS?= -shared 183hack.pico: Makefile 184 :> hack.c 185 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.pico 186 rm -f hack.c 187 188assym.s: $S/kern/genassym.sh genassym.o 189 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 190 191genassym.o: $S/$M/$M/genassym.c 192 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c 193 194${SYSTEM_OBJS} genassym.o vers.o: opt_global.h 195 196.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 197_meta_filemon= 1 198.endif 199# Skip reading .depend when not needed to speed up tree-walks and simple 200# lookups. For install, only do this if no other targets are specified. 201# Also skip generating or including .depend.* files if in meta+filemon mode 202# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 203# for _meta_filemon but not for _SKIP_DEPEND. 204.if !defined(NO_SKIP_DEPEND) && (make(*obj) || \ 205 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 206 ${.TARGETS:M*install*} == ${.TARGETS}) 207_SKIP_DEPEND= 1 208.endif 209.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 210.MAKE.DEPENDFILE= /dev/null 211.endif 212 213kernel-depend: .depend 214SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 215 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 216 ${MFILES:T:S/.m$/.h/} 217DEPENDFILES= .depend .depend.* 218DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o 219DEPENDFILES_OBJS= ${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 DEPENDSRCS 229.undef DEPENDOBJS 230.undef DEPENDFILES_OBJS 231.endif # defined(_SKIP_DEPEND) 232DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 233DEPEND_CFLAGS+= -MT${.TARGET} 234.if !defined(_meta_filemon) 235.if !empty(DEPEND_CFLAGS) 236# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 237# as those are the only ones we will include. 238DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 239CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 240.endif 241.for __depend_obj in ${DEPENDFILES_OBJS} 242.if ${MAKE_VERSION} < 20160220 243.sinclude "${.OBJDIR}/${__depend_obj}" 244.else 245.dinclude "${.OBJDIR}/${__depend_obj}" 246.endif 247.endfor 248.endif # !defined(_meta_filemon) 249 250# Always run 'make depend' to generate dependencies early and to avoid the 251# need for manually running it. For the kernel this is mostly a NOP since 252# all dependencies are correctly added or accounted for. This is mostly to 253# ensure downstream uses of kernel-depend are handled. 254beforebuild: kernel-depend 255 256# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 257# For meta+filemon the .meta file is checked for since it is the dependency 258# file used. 259.for __obj in ${DEPENDOBJS:O:u} 260.if defined(_meta_filemon) 261_depfile= ${.OBJDIR}/${__obj}.meta 262.else 263_depfile= ${.OBJDIR}/.depend.${__obj} 264.endif 265.if !exists(${_depfile}) 266.if ${SYSTEM_OBJS:M${__obj}} 267${__obj}: ${OBJS_DEPEND_GUESS} 268.endif 269${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 270.elif defined(_meta_filemon) 271# For meta mode we still need to know which file to depend on to avoid 272# ambiguous suffix transformation rules from .PATH. Meta mode does not 273# use .depend files. We really only need source files, not headers since 274# they are typically in SRCS/beforebuild already. For target-specific 275# guesses do include headers though since they may not be in SRCS. 276.if ${SYSTEM_OBJS:M${__obj}} 277${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 278.endif 279${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 280.endif # !exists(${_depfile}) 281.endfor 282 283.NOPATH: .depend ${DEPENDFILES_OBJS} 284 285.depend: .PRECIOUS ${SRCS} 286 287_ILINKS= machine 288.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 289_ILINKS+= ${MACHINE_CPUARCH} 290.endif 291.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 292_ILINKS+= x86 293.endif 294 295# Ensure that the link exists without depending on it when it exists. 296.for _link in ${_ILINKS} 297.if !exists(${.OBJDIR}/${_link}) 298${SRCS} ${CLEAN:M*.o}: ${_link} 299.endif 300.endfor 301 302${_ILINKS}: 303 @case ${.TARGET} in \ 304 machine) \ 305 path=${S}/${MACHINE}/include ;; \ 306 *) \ 307 path=${S}/${.TARGET}/include ;; \ 308 esac ; \ 309 ${ECHO} ${.TARGET} "->" $$path ; \ 310 ln -fhs $$path ${.TARGET} 311 312# .depend needs include links so we remove them only together. 313kernel-cleandepend: .PHONY 314 rm -f ${DEPENDFILES} ${_ILINKS} 315 316kernel-tags: 317 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 318 sh $S/conf/systags.sh 319 320kernel-install: .PHONY 321 @if [ ! -f ${KERNEL_KO} ] ; then \ 322 echo "You must build a kernel first." ; \ 323 exit 1 ; \ 324 fi 325.if exists(${DESTDIR}${KODIR}) 326 -thiskernel=`sysctl -n kern.bootfile` ; \ 327 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 328 chflags -R noschg ${DESTDIR}${KODIR} ; \ 329 rm -rf ${DESTDIR}${KODIR} ; \ 330 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 331 else \ 332 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 333 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 334 rm -rf ${DESTDIR}${KODIR}.old ; \ 335 fi ; \ 336 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 337 if [ -n "${KERN_DEBUGDIR}" -a \ 338 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 339 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 340 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 341 fi ; \ 342 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 343 fi 344.endif 345 mkdir -p ${DESTDIR}${KODIR} 346 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 347.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 348 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 349 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 350.endif 351.if defined(KERNEL_EXTRA_INSTALL) 352 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 353.endif 354 355 356 357kernel-reinstall: 358 @-chflags -R noschg ${DESTDIR}${KODIR} 359 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 360.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 361 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 362.endif 363 364config.o env.o hints.o vers.o vnode_if.o: 365 ${NORMAL_C} 366 ${NORMAL_CTFCONVERT} 367 368config.ln env.ln hints.ln vers.ln vnode_if.ln: 369 ${NORMAL_LINT} 370 371.if ${MK_REPRODUCIBLE_BUILD} != "no" 372REPRO_FLAG="-r" 373.endif 374vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 375 MAKE=${MAKE} sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 376 377vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 378 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 379 380vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 381 $S/kern/vnode_if.src 382vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 383 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 384vnode_if_newproto.h: 385 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 386vnode_if_typedef.h: 387 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 388 389.if ${MFS_IMAGE:Uno} != "no" 390.if empty(MD_ROOT_SIZE_CONFIGURED) 391# Generate an object file from the file system image to embed in the kernel 392# via linking. Make sure the contents are in the mfs section and rename the 393# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 394# respectively. 395embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 396 ${OBJCOPY} --input-target binary \ 397 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 398 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 399 ${MFS_IMAGE} ${.TARGET} 400 ${OBJCOPY} \ 401 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 402 --redefine-sym \ 403 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 404 --redefine-sym \ 405 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 406 --redefine-sym \ 407 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 408 ${.TARGET} 409.endif 410.endif 411 412# XXX strictly, everything depends on Makefile because changes to ${PROF} 413# only appear there, but we don't handle that. 414 415.include "kern.mk" 416