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