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.if !empty(FDT_DTS_FILE) 12DTS+= ${FDT_DTS_FILE} 13.endif 14.if defined(DTS) || defined(DTSO) 15.include "dtb.build.mk" 16 17KERNEL_EXTRA+= ${DTB} ${DTBO} 18CLEAN+= ${DTB} ${DTBO} 19 20kernel-install: _dtbinstall 21.ORDER: beforeinstall _dtbinstall 22.endif 23 24# In case the config had a makeoptions DESTDIR... 25.if defined(DESTDIR) 26MKMODULESENV+= DESTDIR="${DESTDIR}" 27.endif 28SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA} 29MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}" 30MKMODULESENV+= MODULE_TIED=yes 31 32.if defined(CONF_CFLAGS) 33MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}" 34.endif 35 36.if defined(WITH_CTF) 37MKMODULESENV+= WITH_CTF="${WITH_CTF}" 38.endif 39 40.if defined(WITH_EXTRA_TCP_STACKS) 41MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}" 42.endif 43 44.if defined(SAN_CFLAGS) 45MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}" 46.endif 47 48.if defined(GCOV_CFLAGS) 49MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}" 50.endif 51 52# Allow overriding the kernel debug directory, so kernel and user debug may be 53# installed in different directories. Setting it to "" restores the historical 54# behavior of installing debug files in the kernel directory. 55KERN_DEBUGDIR?= ${DEBUGDIR} 56 57.MAIN: all 58 59.if !defined(NO_MODULES) 60# Default prefix used for modules installed from ports 61LOCALBASE?= /usr/local 62 63LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 64 65# Default to installing all modules installed by ports unless overridden 66# by the user. 67.if !defined(LOCAL_MODULES) && exists($LOCAL_MODULES_DIR) 68LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 69.endif 70.endif 71 72.for target in all clean cleandepend cleandir clobber depend install \ 73 ${_obj} reinstall tags 74${target}: kernel-${target} 75.if !defined(NO_MODULES) 76${target}: modules-${target} 77modules-${target}: 78.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 79 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 80 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 81.endif 82.for module in ${LOCAL_MODULES} 83 cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 84 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 85.endfor 86.endif 87.endfor 88 89# Handle ports (as defined by the user) that build kernel modules 90.if !defined(NO_MODULES) && defined(PORTS_MODULES) 91# 92# The ports tree needs some environment variables defined to match the new kernel 93# 94# SRC_BASE is how the ports tree refers to the location of the base source files 95.if !defined(SRC_BASE) 96SRC_BASE= ${SYSDIR:H:tA} 97.endif 98# OSVERSION is used by some ports to determine build options 99.if !defined(OSRELDATE) 100# Definition copied from src/Makefile.inc1 101OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 102 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 103.endif 104# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 105# 106# Ports search for some dependencies in PATH, so add the location of the 107# installed files 108WRKDIRPREFIX?= ${.OBJDIR} 109PORTSMODULESENV=\ 110 env \ 111 -u CC \ 112 -u CXX \ 113 -u CPP \ 114 -u MAKESYSPATH \ 115 -u MK_AUTO_OBJ \ 116 -u MAKEOBJDIR \ 117 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 118 SYSDIR=${SYSDIR} \ 119 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 120 SRC_BASE=${SRC_BASE} \ 121 OSVERSION=${OSRELDATE} \ 122 WRKDIRPREFIX=${WRKDIRPREFIX} 123 124# The WRKDIR needs to be cleaned before building, and trying to change the target 125# with a :C pattern below results in install -> instclean 126all: 127.for __i in ${PORTS_MODULES} 128 @${ECHO} "===> Ports module ${__i} (all)" 129 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 130.endfor 131 132.for __target in install reinstall clean 133${__target}: ports-${__target} 134ports-${__target}: 135.for __i in ${PORTS_MODULES} 136 @${ECHO} "===> Ports module ${__i} (${__target})" 137 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 138.endfor 139.endfor 140.endif 141 142.ORDER: kernel-install modules-install 143 144beforebuild: .PHONY 145kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 146 147kernel-cleandir: kernel-clean kernel-cleandepend 148 149kernel-clobber: 150 find . -maxdepth 1 ! -type d ! -name version -delete 151 152kernel-obj: 153 154.if !defined(NO_MODULES) 155modules: modules-all 156modules-depend: beforebuild 157modules-all: beforebuild 158 159.if !defined(NO_MODULES_OBJ) 160modules-all modules-depend: modules-obj 161.endif 162.endif 163 164.if !defined(DEBUG) 165FULLKERNEL= ${KERNEL_KO} 166.else 167FULLKERNEL= ${KERNEL_KO}.full 168${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 169 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 170 ${FULLKERNEL} ${.TARGET} 171${KERNEL_KO}.debug: ${FULLKERNEL} 172 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 173install.debug reinstall.debug: gdbinit 174 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 175 176# Install gdbinit files for kernel debugging. 177gdbinit: 178 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 179 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 180 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 181.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 182 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 183 ${.CURDIR}/gdbinit.machine 184.endif 185.endif 186 187${FULLKERNEL}: ${SYSTEM_DEP} vers.o 188 @rm -f ${.TARGET} 189 @echo linking ${.TARGET} 190 ${SYSTEM_LD} 191.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 192 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 193.endif 194.if ${MK_CTF} != "no" 195 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 196 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 197.endif 198.if !defined(DEBUG) 199 ${OBJCOPY} --strip-debug ${.TARGET} 200.endif 201 ${SYSTEM_LD_TAIL} 202 203OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 204 ${MFILES:T:S/.m$/.h/} 205 206.for mfile in ${MFILES} 207# XXX the low quality .m.o rules gnerated by config are normally used 208# instead of the .m.c rules here. 209${mfile:T:S/.m$/.c/}: ${mfile} 210 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 211${mfile:T:S/.m$/.h/}: ${mfile} 212 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 213.endfor 214 215kernel-clean: 216 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 217 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 218 tags vers.c \ 219 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 220 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 221 ${CLEAN} 222 223# This is a hack. BFD "optimizes" away dynamic mode if there are no 224# dynamic references. We could probably do a '-Bforcedynamic' mode like 225# in the a.out ld. For now, this works. 226HACK_EXTRA_FLAGS?= -shared 227hack.pico: Makefile 228 :> hack.c 229 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.pico 230 rm -f hack.c 231 232offset.inc: $S/kern/genoffset.sh genoffset.o 233 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 234 235genoffset.o: $S/kern/genoffset.c 236 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/kern/genoffset.c 237 238# genoffset_test.o is not actually used for anything - the point of compiling it 239# is to exercise the CTASSERT that checks that the offsets in the offset.inc 240# _lite struct(s) match those in the original(s). 241genoffset_test.o: $S/kern/genoffset.c offset.inc 242 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -DOFFSET_TEST \ 243 $S/kern/genoffset.c -o ${.TARGET} 244 245assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 246 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 247 248genassym.o: $S/$M/$M/genassym.c offset.inc 249 ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c 250 251OBJS_DEPEND_GUESS+= opt_global.h 252genoffset.o genassym.o vers.o: opt_global.h 253 254.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 255_meta_filemon= 1 256.endif 257# Skip reading .depend when not needed to speed up tree-walks and simple 258# lookups. For install, only do this if no other targets are specified. 259# Also skip generating or including .depend.* files if in meta+filemon mode 260# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 261# for _meta_filemon but not for _SKIP_DEPEND. 262.if !defined(NO_SKIP_DEPEND) && \ 263 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 264 ${.TARGETS:M*obj} == ${.TARGETS} || \ 265 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 266 ${.TARGETS:M*install*} == ${.TARGETS}) 267_SKIP_DEPEND= 1 268.endif 269.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 270.MAKE.DEPENDFILE= /dev/null 271.endif 272 273kernel-depend: .depend 274SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 275 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 276 ${MFILES:T:S/.m$/.h/} 277DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 278DEPENDOBJS+= ${CLEAN:M*.o} 279DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 280.if ${MAKE_VERSION} < 20160220 281DEPEND_MP?= -MP 282.endif 283.if defined(_SKIP_DEPEND) 284# Don't bother reading any .meta files 285${DEPENDOBJS}: .NOMETA 286.depend: .NOMETA 287# Unset these to avoid looping/statting on them later. 288.undef DEPENDOBJS 289.undef DEPENDFILES 290.endif # defined(_SKIP_DEPEND) 291DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 292DEPEND_CFLAGS+= -MT${.TARGET} 293.if !defined(_meta_filemon) 294.if !empty(DEPEND_CFLAGS) 295# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 296# as those are the only ones we will include. 297DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 298CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 299.endif 300.for __depend_obj in ${DEPENDFILES} 301.if ${MAKE_VERSION} < 20160220 302.sinclude "${.OBJDIR}/${__depend_obj}" 303.else 304.dinclude "${.OBJDIR}/${__depend_obj}" 305.endif 306.endfor 307.endif # !defined(_meta_filemon) 308 309# Always run 'make depend' to generate dependencies early and to avoid the 310# need for manually running it. For the kernel this is mostly a NOP since 311# all dependencies are correctly added or accounted for. This is mostly to 312# ensure downstream uses of kernel-depend are handled. 313beforebuild: kernel-depend 314 315# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 316# For meta+filemon the .meta file is checked for since it is the dependency 317# file used. 318.for __obj in ${DEPENDOBJS:O:u} 319.if defined(_meta_filemon) 320_depfile= ${.OBJDIR}/${__obj}.meta 321.else 322_depfile= ${.OBJDIR}/.depend.${__obj} 323.endif 324.if !exists(${_depfile}) 325.if ${SYSTEM_OBJS:M${__obj}} 326${__obj}: ${OBJS_DEPEND_GUESS} 327.endif 328${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 329.elif defined(_meta_filemon) 330# For meta mode we still need to know which file to depend on to avoid 331# ambiguous suffix transformation rules from .PATH. Meta mode does not 332# use .depend files. We really only need source files, not headers since 333# they are typically in SRCS/beforebuild already. For target-specific 334# guesses do include headers though since they may not be in SRCS. 335.if ${SYSTEM_OBJS:M${__obj}} 336${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 337.endif 338${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 339.endif # !exists(${_depfile}) 340.endfor 341 342.NOPATH: .depend ${DEPENDFILES} 343 344.depend: .PRECIOUS ${SRCS} 345 346.if ${COMPILER_TYPE} == "clang" || \ 347 (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000) 348_MAP_DEBUG_PREFIX= yes 349.endif 350 351_ILINKS= machine 352.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 353_ILINKS+= ${MACHINE_CPUARCH} 354.endif 355.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 356_ILINKS+= x86 357.endif 358 359# Ensure that the link exists without depending on it when it exists. 360# Ensure that debug info references the path in the source tree. 361.for _link in ${_ILINKS} 362.if !exists(${.OBJDIR}/${_link}) 363${SRCS} ${CLEAN:M*.o}: ${_link} 364.endif 365.if defined(_MAP_DEBUG_PREFIX) 366.if ${_link} == "machine" 367CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include 368.else 369CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include 370.endif 371.endif 372.endfor 373 374${_ILINKS}: 375 @case ${.TARGET} in \ 376 machine) \ 377 path=${S}/${MACHINE}/include ;; \ 378 *) \ 379 path=${S}/${.TARGET}/include ;; \ 380 esac ; \ 381 ${ECHO} ${.TARGET} "->" $$path ; \ 382 ln -fns $$path ${.TARGET} 383 384# .depend needs include links so we remove them only together. 385kernel-cleandepend: .PHONY 386 rm -f .depend .depend.* ${_ILINKS} 387 388kernel-tags: 389 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 390 sh $S/conf/systags.sh 391 392kernel-install: .PHONY 393 @if [ ! -f ${KERNEL_KO} ] ; then \ 394 echo "You must build a kernel first." ; \ 395 exit 1 ; \ 396 fi 397.if exists(${DESTDIR}${KODIR}) 398 -thiskernel=`sysctl -n kern.bootfile` ; \ 399 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 400 chflags -R noschg ${DESTDIR}${KODIR} ; \ 401 rm -rf ${DESTDIR}${KODIR} ; \ 402 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 403 else \ 404 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 405 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 406 rm -rf ${DESTDIR}${KODIR}.old ; \ 407 fi ; \ 408 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 409 if [ -n "${KERN_DEBUGDIR}" -a \ 410 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 411 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 412 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 413 fi ; \ 414 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 415 fi 416.endif 417 mkdir -p ${DESTDIR}${KODIR} 418 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 419.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 420 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 421 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 422.endif 423.if defined(KERNEL_EXTRA_INSTALL) 424 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 425.endif 426 427 428 429kernel-reinstall: 430 @-chflags -R noschg ${DESTDIR}${KODIR} 431 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 432.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 433 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 434.endif 435 436config.o env.o hints.o vers.o vnode_if.o: 437 ${NORMAL_C} 438 ${NORMAL_CTFCONVERT} 439 440.if ${MK_REPRODUCIBLE_BUILD} != "no" 441REPRO_FLAG="-R" 442.endif 443vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 444 MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT} 445 446vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 447 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 448 449vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 450 $S/kern/vnode_if.src 451vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 452 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 453vnode_if_newproto.h: 454 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 455vnode_if_typedef.h: 456 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 457 458.if ${MFS_IMAGE:Uno} != "no" 459.if empty(MD_ROOT_SIZE_CONFIGURED) 460# Generate an object file from the file system image to embed in the kernel 461# via linking. Make sure the contents are in the mfs section and rename the 462# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 463# respectively. 464embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 465 ${OBJCOPY} --input-target binary \ 466 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 467 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 468 ${MFS_IMAGE} ${.TARGET} 469 ${OBJCOPY} \ 470 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 471 --redefine-sym \ 472 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 473 --redefine-sym \ 474 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 475 --redefine-sym \ 476 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 477 ${.TARGET} 478.endif 479.endif 480 481# XXX strictly, everything depends on Makefile because changes to ${PROF} 482# only appear there, but we don't handle that. 483 484.include "kern.mk" 485