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