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}" 17MKMODULESENV+= MODULE_TIED=yes 18 19.if defined(CONF_CFLAGS) 20MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}" 21.endif 22 23.if defined(WITH_CTF) 24MKMODULESENV+= WITH_CTF="${WITH_CTF}" 25.endif 26 27.if defined(WITH_EXTRA_TCP_STACKS) 28MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}" 29.endif 30 31.if defined(SAN_CFLAGS) 32MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}" 33.endif 34 35# Allow overriding the kernel debug directory, so kernel and user debug may be 36# installed in different directories. Setting it to "" restores the historical 37# behavior of installing debug files in the kernel directory. 38KERN_DEBUGDIR?= ${DEBUGDIR} 39 40.MAIN: all 41 42.if !defined(NO_MODULES) 43# Default prefix used for modules installed from ports 44LOCALBASE?= /usr/local 45 46LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 47 48# Default to installing all modules installed by ports unless overridden 49# by the user. 50.if !defined(LOCAL_MODULES) && exists($LOCAL_MODULES_DIR) 51LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 52.endif 53.endif 54 55.for target in all clean cleandepend cleandir clobber depend install \ 56 ${_obj} reinstall tags 57${target}: kernel-${target} 58.if !defined(NO_MODULES) 59${target}: modules-${target} 60modules-${target}: 61.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 62 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 63 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 64.endif 65.for module in ${LOCAL_MODULES} 66 cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 67 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 68.endfor 69.endif 70.endfor 71 72# Handle ports (as defined by the user) that build kernel modules 73.if !defined(NO_MODULES) && defined(PORTS_MODULES) 74# 75# The ports tree needs some environment variables defined to match the new kernel 76# 77# SRC_BASE is how the ports tree refers to the location of the base source files 78.if !defined(SRC_BASE) 79SRC_BASE= ${SYSDIR:H:tA} 80.endif 81# OSVERSION is used by some ports to determine build options 82.if !defined(OSRELDATE) 83# Definition copied from src/Makefile.inc1 84OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 85 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 86.endif 87# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 88# 89# Ports search for some dependencies in PATH, so add the location of the 90# installed files 91WRKDIRPREFIX?= ${.OBJDIR} 92PORTSMODULESENV=\ 93 env \ 94 -u CC \ 95 -u CXX \ 96 -u CPP \ 97 -u MAKESYSPATH \ 98 -u MK_AUTO_OBJ \ 99 -u MAKEOBJDIR \ 100 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 101 SYSDIR=${SYSDIR} \ 102 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 103 SRC_BASE=${SRC_BASE} \ 104 OSVERSION=${OSRELDATE} \ 105 WRKDIRPREFIX=${WRKDIRPREFIX} 106 107# The WRKDIR needs to be cleaned before building, and trying to change the target 108# with a :C pattern below results in install -> instclean 109all: 110.for __i in ${PORTS_MODULES} 111 @${ECHO} "===> Ports module ${__i} (all)" 112 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 113.endfor 114 115.for __target in install reinstall clean 116${__target}: ports-${__target} 117ports-${__target}: 118.for __i in ${PORTS_MODULES} 119 @${ECHO} "===> Ports module ${__i} (${__target})" 120 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 121.endfor 122.endfor 123.endif 124 125.ORDER: kernel-install modules-install 126 127beforebuild: .PHONY 128kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 129 130kernel-cleandir: kernel-clean kernel-cleandepend 131 132kernel-clobber: 133 find . -maxdepth 1 ! -type d ! -name version -delete 134 135kernel-obj: 136 137.if !defined(NO_MODULES) 138modules: modules-all 139 140.if !defined(NO_MODULES_OBJ) 141modules-all modules-depend: modules-obj 142.endif 143.endif 144 145.if !defined(DEBUG) 146FULLKERNEL= ${KERNEL_KO} 147.else 148FULLKERNEL= ${KERNEL_KO}.full 149${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 150 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 151 ${FULLKERNEL} ${.TARGET} 152${KERNEL_KO}.debug: ${FULLKERNEL} 153 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 154install.debug reinstall.debug: gdbinit 155 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 156 157# Install gdbinit files for kernel debugging. 158gdbinit: 159 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 160 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 161 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 162.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 163 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 164 ${.CURDIR}/gdbinit.machine 165.endif 166.endif 167 168${FULLKERNEL}: ${SYSTEM_DEP} vers.o 169 @rm -f ${.TARGET} 170 @echo linking ${.TARGET} 171 ${SYSTEM_LD} 172.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 173 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 174.endif 175.if ${MK_CTF} != "no" 176 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 177 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 178.endif 179.if !defined(DEBUG) 180 ${OBJCOPY} --strip-debug ${.TARGET} 181.endif 182 ${SYSTEM_LD_TAIL} 183 184OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 185 ${MFILES:T:S/.m$/.h/} 186 187.for mfile in ${MFILES} 188# XXX the low quality .m.o rules gnerated by config are normally used 189# instead of the .m.c rules here. 190${mfile:T:S/.m$/.c/}: ${mfile} 191 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 192${mfile:T:S/.m$/.h/}: ${mfile} 193 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 194.endfor 195 196kernel-clean: 197 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 198 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 199 tags vers.c \ 200 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 201 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 202 ${CLEAN} 203 204# This is a hack. BFD "optimizes" away dynamic mode if there are no 205# dynamic references. We could probably do a '-Bforcedynamic' mode like 206# in the a.out ld. For now, this works. 207HACK_EXTRA_FLAGS?= -shared 208hack.pico: Makefile 209 :> hack.c 210 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.pico 211 rm -f hack.c 212 213offset.inc: $S/kern/genoffset.sh genoffset.o 214 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 215 216genoffset.o: $S/kern/genoffset.c 217 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/kern/genoffset.c 218 219# genoffset_test.o is not actually used for anything - the point of compiling it 220# is to exercise the CTASSERT that checks that the offsets in the offset.inc 221# _lite struct(s) match those in the original(s). 222genoffset_test.o: $S/kern/genoffset.c offset.inc 223 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -DOFFSET_TEST \ 224 $S/kern/genoffset.c -o ${.TARGET} 225 226assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 227 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 228 229genassym.o: $S/$M/$M/genassym.c offset.inc 230 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c 231 232OBJS_DEPEND_GUESS+= opt_global.h 233genoffset.o genassym.o vers.o: opt_global.h 234 235.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 236_meta_filemon= 1 237.endif 238# Skip reading .depend when not needed to speed up tree-walks and simple 239# lookups. For install, only do this if no other targets are specified. 240# Also skip generating or including .depend.* files if in meta+filemon mode 241# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 242# for _meta_filemon but not for _SKIP_DEPEND. 243.if !defined(NO_SKIP_DEPEND) && \ 244 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 245 ${.TARGETS:M*obj} == ${.TARGETS} || \ 246 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 247 ${.TARGETS:M*install*} == ${.TARGETS}) 248_SKIP_DEPEND= 1 249.endif 250.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 251.MAKE.DEPENDFILE= /dev/null 252.endif 253 254kernel-depend: .depend 255SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 256 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 257 ${MFILES:T:S/.m$/.h/} 258DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 259DEPENDOBJS+= ${CLEAN:M*.o} 260DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 261.if ${MAKE_VERSION} < 20160220 262DEPEND_MP?= -MP 263.endif 264.if defined(_SKIP_DEPEND) 265# Don't bother reading any .meta files 266${DEPENDOBJS}: .NOMETA 267.depend: .NOMETA 268# Unset these to avoid looping/statting on them later. 269.undef DEPENDOBJS 270.undef DEPENDFILES 271.endif # defined(_SKIP_DEPEND) 272DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 273DEPEND_CFLAGS+= -MT${.TARGET} 274.if !defined(_meta_filemon) 275.if !empty(DEPEND_CFLAGS) 276# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 277# as those are the only ones we will include. 278DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 279CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 280.endif 281.for __depend_obj in ${DEPENDFILES} 282.if ${MAKE_VERSION} < 20160220 283.sinclude "${.OBJDIR}/${__depend_obj}" 284.else 285.dinclude "${.OBJDIR}/${__depend_obj}" 286.endif 287.endfor 288.endif # !defined(_meta_filemon) 289 290# Always run 'make depend' to generate dependencies early and to avoid the 291# need for manually running it. For the kernel this is mostly a NOP since 292# all dependencies are correctly added or accounted for. This is mostly to 293# ensure downstream uses of kernel-depend are handled. 294beforebuild: kernel-depend 295 296# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 297# For meta+filemon the .meta file is checked for since it is the dependency 298# file used. 299.for __obj in ${DEPENDOBJS:O:u} 300.if defined(_meta_filemon) 301_depfile= ${.OBJDIR}/${__obj}.meta 302.else 303_depfile= ${.OBJDIR}/.depend.${__obj} 304.endif 305.if !exists(${_depfile}) 306.if ${SYSTEM_OBJS:M${__obj}} 307${__obj}: ${OBJS_DEPEND_GUESS} 308.endif 309${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 310.elif defined(_meta_filemon) 311# For meta mode we still need to know which file to depend on to avoid 312# ambiguous suffix transformation rules from .PATH. Meta mode does not 313# use .depend files. We really only need source files, not headers since 314# they are typically in SRCS/beforebuild already. For target-specific 315# guesses do include headers though since they may not be in SRCS. 316.if ${SYSTEM_OBJS:M${__obj}} 317${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 318.endif 319${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 320.endif # !exists(${_depfile}) 321.endfor 322 323.NOPATH: .depend ${DEPENDFILES} 324 325.depend: .PRECIOUS ${SRCS} 326 327_ILINKS= machine 328.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 329_ILINKS+= ${MACHINE_CPUARCH} 330.endif 331.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 332_ILINKS+= x86 333.endif 334 335# Ensure that the link exists without depending on it when it exists. 336.for _link in ${_ILINKS} 337.if !exists(${.OBJDIR}/${_link}) 338${SRCS} ${CLEAN:M*.o}: ${_link} 339.endif 340.endfor 341 342${_ILINKS}: 343 @case ${.TARGET} in \ 344 machine) \ 345 path=${S}/${MACHINE}/include ;; \ 346 *) \ 347 path=${S}/${.TARGET}/include ;; \ 348 esac ; \ 349 ${ECHO} ${.TARGET} "->" $$path ; \ 350 ln -fns $$path ${.TARGET} 351 352# .depend needs include links so we remove them only together. 353kernel-cleandepend: .PHONY 354 rm -f .depend .depend.* ${_ILINKS} 355 356kernel-tags: 357 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 358 sh $S/conf/systags.sh 359 360kernel-install: .PHONY 361 @if [ ! -f ${KERNEL_KO} ] ; then \ 362 echo "You must build a kernel first." ; \ 363 exit 1 ; \ 364 fi 365.if exists(${DESTDIR}${KODIR}) 366 -thiskernel=`sysctl -n kern.bootfile` ; \ 367 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 368 chflags -R noschg ${DESTDIR}${KODIR} ; \ 369 rm -rf ${DESTDIR}${KODIR} ; \ 370 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 371 else \ 372 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 373 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 374 rm -rf ${DESTDIR}${KODIR}.old ; \ 375 fi ; \ 376 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 377 if [ -n "${KERN_DEBUGDIR}" -a \ 378 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 379 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 380 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 381 fi ; \ 382 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 383 fi 384.endif 385 mkdir -p ${DESTDIR}${KODIR} 386 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 387.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 388 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 389 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 390.endif 391.if defined(KERNEL_EXTRA_INSTALL) 392 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 393.endif 394 395 396 397kernel-reinstall: 398 @-chflags -R noschg ${DESTDIR}${KODIR} 399 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 400.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 401 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 402.endif 403 404config.o env.o hints.o vers.o vnode_if.o: 405 ${NORMAL_C} 406 ${NORMAL_CTFCONVERT} 407 408.if ${MK_REPRODUCIBLE_BUILD} != "no" 409REPRO_FLAG="-R" 410.endif 411vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 412 MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 413 414vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 415 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 416 417vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 418 $S/kern/vnode_if.src 419vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 420 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 421vnode_if_newproto.h: 422 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 423vnode_if_typedef.h: 424 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 425 426.if ${MFS_IMAGE:Uno} != "no" 427.if empty(MD_ROOT_SIZE_CONFIGURED) 428# Generate an object file from the file system image to embed in the kernel 429# via linking. Make sure the contents are in the mfs section and rename the 430# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 431# respectively. 432embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 433 ${OBJCOPY} --input-target binary \ 434 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 435 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 436 ${MFS_IMAGE} ${.TARGET} 437 ${OBJCOPY} \ 438 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 439 --redefine-sym \ 440 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 441 --redefine-sym \ 442 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 443 --redefine-sym \ 444 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 445 ${.TARGET} 446.endif 447.endif 448 449# XXX strictly, everything depends on Makefile because changes to ${PROF} 450# only appear there, but we don't handle that. 451 452.include "kern.mk" 453