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