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