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