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