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.if defined(GCOV_CFLAGS) 36MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}" 37.endif 38 39# Allow overriding the kernel debug directory, so kernel and user debug may be 40# installed in different directories. Setting it to "" restores the historical 41# behavior of installing debug files in the kernel directory. 42KERN_DEBUGDIR?= ${DEBUGDIR} 43 44.MAIN: all 45 46.if !defined(NO_MODULES) 47# Default prefix used for modules installed from ports 48LOCALBASE?= /usr/local 49 50LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 51 52# Default to installing all modules installed by ports unless overridden 53# by the user. 54.if !defined(LOCAL_MODULES) && exists($LOCAL_MODULES_DIR) 55LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 56.endif 57.endif 58 59.for target in all clean cleandepend cleandir clobber depend install \ 60 ${_obj} reinstall tags 61${target}: kernel-${target} 62.if !defined(NO_MODULES) 63${target}: modules-${target} 64modules-${target}: 65.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 66 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 67 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 68.endif 69.for module in ${LOCAL_MODULES} 70 cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 71 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 72.endfor 73.endif 74.endfor 75 76# Handle ports (as defined by the user) that build kernel modules 77.if !defined(NO_MODULES) && defined(PORTS_MODULES) 78# 79# The ports tree needs some environment variables defined to match the new kernel 80# 81# SRC_BASE is how the ports tree refers to the location of the base source files 82.if !defined(SRC_BASE) 83SRC_BASE= ${SYSDIR:H:tA} 84.endif 85# OSVERSION is used by some ports to determine build options 86.if !defined(OSRELDATE) 87# Definition copied from src/Makefile.inc1 88OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 89 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 90.endif 91# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 92# 93# Ports search for some dependencies in PATH, so add the location of the 94# installed files 95WRKDIRPREFIX?= ${.OBJDIR} 96PORTSMODULESENV=\ 97 env \ 98 -u CC \ 99 -u CXX \ 100 -u CPP \ 101 -u MAKESYSPATH \ 102 -u MK_AUTO_OBJ \ 103 -u MAKEOBJDIR \ 104 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 105 SYSDIR=${SYSDIR} \ 106 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 107 SRC_BASE=${SRC_BASE} \ 108 OSVERSION=${OSRELDATE} \ 109 WRKDIRPREFIX=${WRKDIRPREFIX} 110 111# The WRKDIR needs to be cleaned before building, and trying to change the target 112# with a :C pattern below results in install -> instclean 113all: 114.for __i in ${PORTS_MODULES} 115 @${ECHO} "===> Ports module ${__i} (all)" 116 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 117.endfor 118 119.for __target in install reinstall clean 120${__target}: ports-${__target} 121ports-${__target}: 122.for __i in ${PORTS_MODULES} 123 @${ECHO} "===> Ports module ${__i} (${__target})" 124 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 125.endfor 126.endfor 127.endif 128 129.ORDER: kernel-install modules-install 130 131beforebuild: .PHONY 132kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 133 134kernel-cleandir: kernel-clean kernel-cleandepend 135 136kernel-clobber: 137 find . -maxdepth 1 ! -type d ! -name version -delete 138 139kernel-obj: 140 141.if !defined(NO_MODULES) 142modules: modules-all 143 144.if !defined(NO_MODULES_OBJ) 145modules-all modules-depend: modules-obj 146.endif 147.endif 148 149.if !defined(DEBUG) 150FULLKERNEL= ${KERNEL_KO} 151.else 152FULLKERNEL= ${KERNEL_KO}.full 153${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 154 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 155 ${FULLKERNEL} ${.TARGET} 156${KERNEL_KO}.debug: ${FULLKERNEL} 157 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 158install.debug reinstall.debug: gdbinit 159 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 160 161# Install gdbinit files for kernel debugging. 162gdbinit: 163 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 164 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 165 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 166.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 167 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 168 ${.CURDIR}/gdbinit.machine 169.endif 170.endif 171 172${FULLKERNEL}: ${SYSTEM_DEP} vers.o 173 @rm -f ${.TARGET} 174 @echo linking ${.TARGET} 175 ${SYSTEM_LD} 176.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 177 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 178.endif 179.if ${MK_CTF} != "no" 180 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 181 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 182.endif 183.if !defined(DEBUG) 184 ${OBJCOPY} --strip-debug ${.TARGET} 185.endif 186 ${SYSTEM_LD_TAIL} 187 188OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 189 ${MFILES:T:S/.m$/.h/} 190 191.for mfile in ${MFILES} 192# XXX the low quality .m.o rules gnerated by config are normally used 193# instead of the .m.c rules here. 194${mfile:T:S/.m$/.c/}: ${mfile} 195 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 196${mfile:T:S/.m$/.h/}: ${mfile} 197 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 198.endfor 199 200kernel-clean: 201 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 202 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 203 tags vers.c \ 204 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 205 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 206 ${CLEAN} 207 208# This is a hack. BFD "optimizes" away dynamic mode if there are no 209# dynamic references. We could probably do a '-Bforcedynamic' mode like 210# in the a.out ld. For now, this works. 211HACK_EXTRA_FLAGS?= -shared 212hack.pico: Makefile 213 :> hack.c 214 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.pico 215 rm -f hack.c 216 217offset.inc: $S/kern/genoffset.sh genoffset.o 218 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 219 220genoffset.o: $S/kern/genoffset.c 221 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/kern/genoffset.c 222 223# genoffset_test.o is not actually used for anything - the point of compiling it 224# is to exercise the CTASSERT that checks that the offsets in the offset.inc 225# _lite struct(s) match those in the original(s). 226genoffset_test.o: $S/kern/genoffset.c offset.inc 227 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -DOFFSET_TEST \ 228 $S/kern/genoffset.c -o ${.TARGET} 229 230assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 231 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 232 233genassym.o: $S/$M/$M/genassym.c offset.inc 234 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c 235 236OBJS_DEPEND_GUESS+= opt_global.h 237genoffset.o genassym.o vers.o: opt_global.h 238 239.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 240_meta_filemon= 1 241.endif 242# Skip reading .depend when not needed to speed up tree-walks and simple 243# lookups. For install, only do this if no other targets are specified. 244# Also skip generating or including .depend.* files if in meta+filemon mode 245# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 246# for _meta_filemon but not for _SKIP_DEPEND. 247.if !defined(NO_SKIP_DEPEND) && \ 248 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 249 ${.TARGETS:M*obj} == ${.TARGETS} || \ 250 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 251 ${.TARGETS:M*install*} == ${.TARGETS}) 252_SKIP_DEPEND= 1 253.endif 254.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 255.MAKE.DEPENDFILE= /dev/null 256.endif 257 258kernel-depend: .depend 259SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 260 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 261 ${MFILES:T:S/.m$/.h/} 262DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 263DEPENDOBJS+= ${CLEAN:M*.o} 264DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 265.if ${MAKE_VERSION} < 20160220 266DEPEND_MP?= -MP 267.endif 268.if defined(_SKIP_DEPEND) 269# Don't bother reading any .meta files 270${DEPENDOBJS}: .NOMETA 271.depend: .NOMETA 272# Unset these to avoid looping/statting on them later. 273.undef DEPENDOBJS 274.undef DEPENDFILES 275.endif # defined(_SKIP_DEPEND) 276DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 277DEPEND_CFLAGS+= -MT${.TARGET} 278.if !defined(_meta_filemon) 279.if !empty(DEPEND_CFLAGS) 280# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 281# as those are the only ones we will include. 282DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 283CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 284.endif 285.for __depend_obj in ${DEPENDFILES} 286.if ${MAKE_VERSION} < 20160220 287.sinclude "${.OBJDIR}/${__depend_obj}" 288.else 289.dinclude "${.OBJDIR}/${__depend_obj}" 290.endif 291.endfor 292.endif # !defined(_meta_filemon) 293 294# Always run 'make depend' to generate dependencies early and to avoid the 295# need for manually running it. For the kernel this is mostly a NOP since 296# all dependencies are correctly added or accounted for. This is mostly to 297# ensure downstream uses of kernel-depend are handled. 298beforebuild: kernel-depend 299 300# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 301# For meta+filemon the .meta file is checked for since it is the dependency 302# file used. 303.for __obj in ${DEPENDOBJS:O:u} 304.if defined(_meta_filemon) 305_depfile= ${.OBJDIR}/${__obj}.meta 306.else 307_depfile= ${.OBJDIR}/.depend.${__obj} 308.endif 309.if !exists(${_depfile}) 310.if ${SYSTEM_OBJS:M${__obj}} 311${__obj}: ${OBJS_DEPEND_GUESS} 312.endif 313${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 314.elif defined(_meta_filemon) 315# For meta mode we still need to know which file to depend on to avoid 316# ambiguous suffix transformation rules from .PATH. Meta mode does not 317# use .depend files. We really only need source files, not headers since 318# they are typically in SRCS/beforebuild already. For target-specific 319# guesses do include headers though since they may not be in SRCS. 320.if ${SYSTEM_OBJS:M${__obj}} 321${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 322.endif 323${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 324.endif # !exists(${_depfile}) 325.endfor 326 327.NOPATH: .depend ${DEPENDFILES} 328 329.depend: .PRECIOUS ${SRCS} 330 331_ILINKS= machine 332.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 333_ILINKS+= ${MACHINE_CPUARCH} 334.endif 335.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 336_ILINKS+= x86 337.endif 338 339# Ensure that the link exists without depending on it when it exists. 340.for _link in ${_ILINKS} 341.if !exists(${.OBJDIR}/${_link}) 342${SRCS} ${CLEAN:M*.o}: ${_link} 343.endif 344.endfor 345 346${_ILINKS}: 347 @case ${.TARGET} in \ 348 machine) \ 349 path=${S}/${MACHINE}/include ;; \ 350 *) \ 351 path=${S}/${.TARGET}/include ;; \ 352 esac ; \ 353 ${ECHO} ${.TARGET} "->" $$path ; \ 354 ln -fns $$path ${.TARGET} 355 356# .depend needs include links so we remove them only together. 357kernel-cleandepend: .PHONY 358 rm -f .depend .depend.* ${_ILINKS} 359 360kernel-tags: 361 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 362 sh $S/conf/systags.sh 363 364kernel-install: .PHONY 365 @if [ ! -f ${KERNEL_KO} ] ; then \ 366 echo "You must build a kernel first." ; \ 367 exit 1 ; \ 368 fi 369.if exists(${DESTDIR}${KODIR}) 370 -thiskernel=`sysctl -n kern.bootfile` ; \ 371 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 372 chflags -R noschg ${DESTDIR}${KODIR} ; \ 373 rm -rf ${DESTDIR}${KODIR} ; \ 374 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 375 else \ 376 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 377 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 378 rm -rf ${DESTDIR}${KODIR}.old ; \ 379 fi ; \ 380 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 381 if [ -n "${KERN_DEBUGDIR}" -a \ 382 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 383 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 384 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 385 fi ; \ 386 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 387 fi 388.endif 389 mkdir -p ${DESTDIR}${KODIR} 390 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 391.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 392 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 393 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 394.endif 395.if defined(KERNEL_EXTRA_INSTALL) 396 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 397.endif 398 399 400 401kernel-reinstall: 402 @-chflags -R noschg ${DESTDIR}${KODIR} 403 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 404.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 405 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 406.endif 407 408config.o env.o hints.o vers.o vnode_if.o: 409 ${NORMAL_C} 410 ${NORMAL_CTFCONVERT} 411 412.if ${MK_REPRODUCIBLE_BUILD} != "no" 413REPRO_FLAG="-R" 414.endif 415vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 416 MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 417 418vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 419 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 420 421vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 422 $S/kern/vnode_if.src 423vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 424 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 425vnode_if_newproto.h: 426 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 427vnode_if_typedef.h: 428 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 429 430.if ${MFS_IMAGE:Uno} != "no" 431.if empty(MD_ROOT_SIZE_CONFIGURED) 432# Generate an object file from the file system image to embed in the kernel 433# via linking. Make sure the contents are in the mfs section and rename the 434# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 435# respectively. 436embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 437 ${OBJCOPY} --input-target binary \ 438 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 439 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 440 ${MFS_IMAGE} ${.TARGET} 441 ${OBJCOPY} \ 442 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 443 --redefine-sym \ 444 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 445 --redefine-sym \ 446 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 447 --redefine-sym \ 448 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 449 ${.TARGET} 450.endif 451.endif 452 453# XXX strictly, everything depends on Makefile because changes to ${PROF} 454# only appear there, but we don't handle that. 455 456.include "kern.mk" 457