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 defined(DTS) || defined(DTSO) || defined(FDT_DTS_FILE) 12.include "dtb.build.mk" 13 14KERNEL_EXTRA+= ${DTB} ${DTBO} 15CLEAN+= ${DTB} ${DTBO} 16 17kernel-install: _dtbinstall 18.ORDER: beforeinstall _dtbinstall 19.endif 20 21# In case the config had a makeoptions DESTDIR... 22.if defined(DESTDIR) 23MKMODULESENV+= DESTDIR="${DESTDIR}" 24.endif 25SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA} 26MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}" 27MKMODULESENV+= MODULE_TIED=yes 28 29.if defined(CONF_CFLAGS) 30MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}" 31.endif 32 33.if defined(WITH_CTF) 34MKMODULESENV+= WITH_CTF="${WITH_CTF}" 35.endif 36 37.if defined(WITH_EXTRA_TCP_STACKS) 38MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}" 39.endif 40 41.if defined(KCSAN_ENABLED) 42MKMODULESENV+= KCSAN_ENABLED="yes" 43.endif 44 45.if defined(SAN_CFLAGS) 46MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}" 47.endif 48 49.if defined(GCOV_CFLAGS) 50MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}" 51.endif 52 53# Allow overriding the kernel debug directory, so kernel and user debug may be 54# installed in different directories. Setting it to "" restores the historical 55# behavior of installing debug files in the kernel directory. 56KERN_DEBUGDIR?= ${DEBUGDIR} 57 58.MAIN: all 59 60.if !defined(NO_MODULES) 61# Default prefix used for modules installed from ports 62LOCALBASE?= /usr/local 63 64LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules 65 66# Default to installing all modules installed by ports unless overridden 67# by the user. 68.if !defined(LOCAL_MODULES) && exists(${LOCAL_MODULES_DIR}) 69LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR} 70.endif 71.endif 72 73.for target in all clean cleandepend cleandir clobber depend install \ 74 ${_obj} reinstall tags 75${target}: kernel-${target} 76.if !defined(NO_MODULES) 77${target}: modules-${target} 78modules-${target}: 79.if !defined(MODULES_WITH_WORLD) && exists($S/modules) 80 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 81 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 82.endif 83.for module in ${LOCAL_MODULES} 84 @${ECHODIR} "===> ${module} (${target:S/^reinstall$/install/:S/^clobber$/cleandir/})" 85 @cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \ 86 DIRPRFX="${module}/" \ 87 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 88.endfor 89.endif 90.endfor 91 92# Handle ports (as defined by the user) that build kernel modules 93.if !defined(NO_MODULES) && defined(PORTS_MODULES) 94# 95# The ports tree needs some environment variables defined to match the new kernel 96# 97# SRC_BASE is how the ports tree refers to the location of the base source files 98.if !defined(SRC_BASE) 99SRC_BASE= ${SYSDIR:H:tA} 100.endif 101# OSVERSION is used by some ports to determine build options 102.if !defined(OSRELDATE) 103# Definition copied from src/Makefile.inc1 104OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 105 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 106.endif 107# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 108# 109# Ports search for some dependencies in PATH, so add the location of the 110# installed files 111WRKDIRPREFIX?= ${.OBJDIR} 112PORTSMODULESENV=\ 113 env \ 114 -u CC \ 115 -u CXX \ 116 -u CPP \ 117 -u MAKESYSPATH \ 118 -u MK_AUTO_OBJ \ 119 -u MAKEOBJDIR \ 120 MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \ 121 SYSDIR=${SYSDIR} \ 122 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 123 SRC_BASE=${SRC_BASE} \ 124 OSVERSION=${OSRELDATE} \ 125 WRKDIRPREFIX=${WRKDIRPREFIX} 126 127# The WRKDIR needs to be cleaned before building, and trying to change the target 128# with a :C pattern below results in install -> instclean 129all: 130.for __i in ${PORTS_MODULES} 131 @${ECHO} "===> Ports module ${__i} (all)" 132 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build 133.endfor 134 135.for __target in install reinstall clean 136${__target}: ports-${__target} 137ports-${__target}: 138.for __i in ${PORTS_MODULES} 139 @${ECHO} "===> Ports module ${__i} (${__target})" 140 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/} 141.endfor 142.endfor 143.endif 144 145.ORDER: kernel-install modules-install 146 147beforebuild: .PHONY 148kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 149 150kernel-cleandir: kernel-clean kernel-cleandepend 151 152kernel-clobber: 153 find . -maxdepth 1 ! -type d ! -name version -delete 154 155kernel-obj: 156 157.if !defined(NO_MODULES) 158modules: modules-all 159modules-depend: beforebuild 160modules-all: beforebuild 161 162.if !defined(NO_MODULES_OBJ) 163modules-all modules-depend: modules-obj 164.endif 165.endif 166 167.if !defined(DEBUG) 168FULLKERNEL= ${KERNEL_KO} 169.else 170FULLKERNEL= ${KERNEL_KO}.full 171${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 172 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 173 ${FULLKERNEL} ${.TARGET} 174${KERNEL_KO}.debug: ${FULLKERNEL} 175 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 176install.debug reinstall.debug: gdbinit 177 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 178 179# Install gdbinit files for kernel debugging. 180gdbinit: 181 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 182 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 183 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 184.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 185 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 186 ${.CURDIR}/gdbinit.machine 187.endif 188.endif 189 190${FULLKERNEL}: ${SYSTEM_DEP} vers.o 191 @rm -f ${.TARGET} 192 @echo linking ${.TARGET} 193 ${SYSTEM_LD} 194.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 195 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 196.endif 197.if ${MK_CTF} != "no" 198 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 199 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 200.endif 201.if !defined(DEBUG) 202 ${OBJCOPY} --strip-debug ${.TARGET} 203.endif 204 ${SYSTEM_LD_TAIL} 205 206OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \ 207 ${MFILES:T:S/.m$/.h/} 208 209.for mfile in ${MFILES} 210# XXX the low quality .m.o rules gnerated by config are normally used 211# instead of the .m.c rules here. 212${mfile:T:S/.m$/.c/}: ${mfile} 213 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 214${mfile:T:S/.m$/.h/}: ${mfile} 215 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 216.endfor 217 218kernel-clean: 219 rm -f *.o *.so *.pico *.ko *.s eddep errs \ 220 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 221 tags vers.c \ 222 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 223 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 224 ${CLEAN} 225 226# This is a hack. BFD "optimizes" away dynamic mode if there are no 227# dynamic references. We could probably do a '-Bforcedynamic' mode like 228# in the a.out ld. For now, this works. 229hack.pico: Makefile 230 :> hack.c 231 ${CC} -shared ${CFLAGS} -nostdlib hack.c -o hack.pico 232 rm -f hack.c 233 234offset.inc: $S/kern/genoffset.sh genoffset.o 235 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} 236 237genoffset.o: $S/kern/genoffset.c 238 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c 239 240# genoffset_test.o is not actually used for anything - the point of compiling it 241# is to exercise the CTASSERT that checks that the offsets in the offset.inc 242# _lite struct(s) match those in the original(s). 243genoffset_test.o: $S/kern/genoffset.c offset.inc 244 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ 245 $S/kern/genoffset.c -o ${.TARGET} 246 247assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o 248 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 249 250genassym.o: $S/$M/$M/genassym.c offset.inc 251 ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c 252 253OBJS_DEPEND_GUESS+= opt_global.h 254genoffset.o genassym.o vers.o: opt_global.h 255 256.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 257_meta_filemon= 1 258.endif 259# Skip reading .depend when not needed to speed up tree-walks and simple 260# lookups. For install, only do this if no other targets are specified. 261# Also skip generating or including .depend.* files if in meta+filemon mode 262# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used 263# for _meta_filemon but not for _SKIP_DEPEND. 264.if !defined(NO_SKIP_DEPEND) && \ 265 ((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \ 266 ${.TARGETS:M*obj} == ${.TARGETS} || \ 267 ${.TARGETS:M*clean*} == ${.TARGETS} || \ 268 ${.TARGETS:M*install*} == ${.TARGETS}) 269_SKIP_DEPEND= 1 270.endif 271.if defined(_SKIP_DEPEND) || defined(_meta_filemon) 272.MAKE.DEPENDFILE= /dev/null 273.endif 274 275kernel-depend: .depend 276SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 277 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 278 ${MFILES:T:S/.m$/.h/} 279DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o 280DEPENDOBJS+= ${CLEAN:M*.o} 281DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./} 282.if ${MAKE_VERSION} < 20160220 283DEPEND_MP?= -MP 284.endif 285.if defined(_SKIP_DEPEND) 286# Don't bother reading any .meta files 287${DEPENDOBJS}: .NOMETA 288.depend: .NOMETA 289# Unset these to avoid looping/statting on them later. 290.undef DEPENDOBJS 291.undef DEPENDFILES 292.endif # defined(_SKIP_DEPEND) 293DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 294DEPEND_CFLAGS+= -MT${.TARGET} 295.if !defined(_meta_filemon) 296.if !empty(DEPEND_CFLAGS) 297# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 298# as those are the only ones we will include. 299DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 300CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 301.endif 302.for __depend_obj in ${DEPENDFILES} 303.if ${MAKE_VERSION} < 20160220 304.sinclude "${.OBJDIR}/${__depend_obj}" 305.else 306.dinclude "${.OBJDIR}/${__depend_obj}" 307.endif 308.endfor 309.endif # !defined(_meta_filemon) 310 311# Always run 'make depend' to generate dependencies early and to avoid the 312# need for manually running it. For the kernel this is mostly a NOP since 313# all dependencies are correctly added or accounted for. This is mostly to 314# ensure downstream uses of kernel-depend are handled. 315beforebuild: kernel-depend 316 317# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 318# For meta+filemon the .meta file is checked for since it is the dependency 319# file used. 320.for __obj in ${DEPENDOBJS:O:u} 321.if defined(_meta_filemon) 322_depfile= ${.OBJDIR}/${__obj}.meta 323.else 324_depfile= ${.OBJDIR}/.depend.${__obj} 325.endif 326.if !exists(${_depfile}) 327.if ${SYSTEM_OBJS:M${__obj}} 328${__obj}: ${OBJS_DEPEND_GUESS} 329.endif 330${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 331.elif defined(_meta_filemon) 332# For meta mode we still need to know which file to depend on to avoid 333# ambiguous suffix transformation rules from .PATH. Meta mode does not 334# use .depend files. We really only need source files, not headers since 335# they are typically in SRCS/beforebuild already. For target-specific 336# guesses do include headers though since they may not be in SRCS. 337.if ${SYSTEM_OBJS:M${__obj}} 338${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 339.endif 340${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 341.endif # !exists(${_depfile}) 342.endfor 343 344.NOPATH: .depend ${DEPENDFILES} 345 346.depend: .PRECIOUS ${SRCS} 347 348_MAP_DEBUG_PREFIX= yes 349 350_ILINKS= machine 351.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 352_ILINKS+= ${MACHINE_CPUARCH} 353.endif 354.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 355_ILINKS+= x86 356.endif 357 358# Ensure that the link exists without depending on it when it exists. 359# Ensure that debug info references the path in the source tree. 360.for _link in ${_ILINKS} 361.if !exists(${.OBJDIR}/${_link}) 362${SRCS} ${DEPENDOBJS}: ${_link} 363.endif 364.if defined(_MAP_DEBUG_PREFIX) 365.if ${_link} == "machine" 366CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include 367.else 368CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include 369.endif 370.endif 371.endfor 372 373${_ILINKS}: 374 @case ${.TARGET} in \ 375 machine) \ 376 path=${S}/${MACHINE}/include ;; \ 377 *) \ 378 path=${S}/${.TARGET}/include ;; \ 379 esac ; \ 380 ${ECHO} ${.TARGET} "->" $$path ; \ 381 ln -fns $$path ${.TARGET} 382 383# .depend needs include links so we remove them only together. 384kernel-cleandepend: .PHONY 385 rm -f .depend .depend.* ${_ILINKS} 386 387kernel-tags: 388 @ls .depend.* > /dev/null 2>&1 || \ 389 { echo "you must make all first"; exit 1; } 390 sh $S/conf/systags.sh 391 392kernel-install: .PHONY 393 @if [ ! -f ${KERNEL_KO} ] ; then \ 394 echo "You must build a kernel first." ; \ 395 exit 1 ; \ 396 fi 397.if exists(${DESTDIR}${KODIR}) 398 -thiskernel=`sysctl -n kern.bootfile` ; \ 399 if [ ! "`dirname "$$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