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# Allow overriding the kernel debug directory, so kernel and user debug may be 27# installed in different directories. Setting it to "" restores the historical 28# behavior of installing debug files in the kernel directory. 29KERN_DEBUGDIR?= ${DEBUGDIR} 30 31.MAIN: all 32 33.for target in all clean cleandepend cleandir clobber depend install \ 34 obj reinstall tags 35${target}: kernel-${target} 36.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules) 37${target}: modules-${target} 38modules-${target}: 39 cd $S/modules; ${MKMODULESENV} ${MAKE} \ 40 ${target:S/^reinstall$/install/:S/^clobber$/cleandir/} 41.endif 42.endfor 43 44# Handle ports (as defined by the user) that build kernel modules 45.if !defined(NO_MODULES) && defined(PORTS_MODULES) 46# 47# The ports tree needs some environment variables defined to match the new kernel 48# 49# Ports search for some dependencies in PATH, so add the location of the installed files 50LOCALBASE?= /usr/local 51# SRC_BASE is how the ports tree refers to the location of the base source files 52.if !defined(SRC_BASE) 53SRC_BASE= ${SYSDIR:H:tA} 54.endif 55# OSVERSION is used by some ports to determine build options 56.if !defined(OSRELDATE) 57# Definition copied from src/Makefile.inc1 58OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \ 59 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 60.endif 61# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 62WRKDIRPREFIX?= ${MAKEOBJDIRPREFIX}${SRC_BASE}/sys/${KERNCONF} 63PORTSMODULESENV=\ 64 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 65 SRC_BASE=${SRC_BASE} \ 66 OSVERSION=${OSRELDATE} \ 67 WRKDIRPREFIX=${WRKDIRPREFIX} 68 69# The WRKDIR needs to be cleaned before building, and trying to change the target 70# with a :C pattern below results in install -> instclean 71all: 72.for __i in ${PORTS_MODULES} 73 @${ECHO} "===> Ports module ${__i} (all)" 74 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean all 75.endfor 76 77.for __target in install reinstall clean 78${__target}: ports-${__target} 79ports-${__target}: 80.for __i in ${PORTS_MODULES} 81 @${ECHO} "===> Ports module ${__i} (${__target})" 82 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/} 83.endfor 84.endfor 85.endif 86 87.ORDER: kernel-install modules-install 88 89beforebuild: .PHONY 90kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 91 92kernel-cleandir: kernel-clean kernel-cleandepend 93 94kernel-clobber: 95 find . -maxdepth 1 ! -type d ! -name version -delete 96 97kernel-obj: 98 99.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules) 100modules: modules-all 101 102.if !defined(NO_MODULES_OBJ) 103modules-all modules-depend: modules-obj 104.endif 105.endif 106 107.if !defined(DEBUG) 108FULLKERNEL= ${KERNEL_KO} 109.else 110FULLKERNEL= ${KERNEL_KO}.full 111${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 112 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 113 ${FULLKERNEL} ${.TARGET} 114${KERNEL_KO}.debug: ${FULLKERNEL} 115 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 116install.debug reinstall.debug: gdbinit 117 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 118 119# Install gdbinit files for kernel debugging. 120gdbinit: 121 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 122 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 123 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 124.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 125 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 126 ${.CURDIR}/gdbinit.machine 127.endif 128.endif 129 130${FULLKERNEL}: ${SYSTEM_DEP} vers.o 131 @rm -f ${.TARGET} 132 @echo linking ${.TARGET} 133 ${SYSTEM_LD} 134.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 135 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 136.endif 137.if ${MK_CTF} != "no" 138 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 139 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 140.endif 141.if !defined(DEBUG) 142 ${OBJCOPY} --strip-debug ${.TARGET} 143.endif 144 ${SYSTEM_LD_TAIL} 145 146OBJS_DEPEND_GUESS+= assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} \ 147 ${MFILES:T:S/.m$/.h/} 148LNFILES= ${CFILES:T:S/.c$/.ln/} 149 150.for mfile in ${MFILES} 151# XXX the low quality .m.o rules gnerated by config are normally used 152# instead of the .m.c rules here. 153${mfile:T:S/.m$/.c/}: ${mfile} 154 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 155${mfile:T:S/.m$/.h/}: ${mfile} 156 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 157.endfor 158 159kernel-clean: 160 rm -f *.o *.so *.So *.ko *.s eddep errs \ 161 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 162 linterrs tags vers.c \ 163 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 164 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 165 ${CLEAN} 166 167lint: ${LNFILES} 168 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \ 169 tee -a linterrs 170 171# This is a hack. BFD "optimizes" away dynamic mode if there are no 172# dynamic references. We could probably do a '-Bforcedynamic' mode like 173# in the a.out ld. For now, this works. 174HACK_EXTRA_FLAGS?= -shared 175hack.So: Makefile 176 :> hack.c 177 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.So 178 rm -f hack.c 179 180assym.s: $S/kern/genassym.sh genassym.o 181 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 182 183genassym.o: $S/$M/$M/genassym.c 184 ${CC} -c ${CFLAGS:N-fno-common} $S/$M/$M/genassym.c 185 186${SYSTEM_OBJS} genassym.o vers.o: opt_global.h 187 188# Skip reading .depend when not needed to speed up tree-walks 189# and simple lookups. 190.if !empty(.MAKEFLAGS:M-V${_V_READ_DEPEND}) || make(obj) || make(clean*) || \ 191 make(install*) || make(kernel-obj) || make(kernel-clean*) || \ 192 make(kernel-install*) 193_SKIP_READ_DEPEND= 1 194.MAKE.DEPENDFILE= /dev/null 195.endif 196 197kernel-depend: .depend 198SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 199 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 200 ${MFILES:T:S/.m$/.h/} 201DEPENDFILES= .depend .depend.* 202# Skip generating or including .depend.* files if in meta+filemon mode since 203# it will track dependencies itself. OBJS_DEPEND_GUESS is still used though. 204.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 205_meta_filemon= 1 206.endif 207DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o 208DEPENDFILES_OBJS= ${DEPENDOBJS:O:u:C/^/.depend./} 209.if ${MAKE_VERSION} < 20160220 210DEPEND_MP?= -MP 211.endif 212DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 213DEPEND_CFLAGS+= -MT${.TARGET} 214.if !defined(_meta_filemon) 215.if defined(.PARSEDIR) 216# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 217# as those are the only ones we will include. 218DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 219CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 220.else 221CFLAGS+= ${DEPEND_CFLAGS} 222.endif 223.if !defined(_SKIP_READ_DEPEND) 224.for __depend_obj in ${DEPENDFILES_OBJS} 225.if ${MAKE_VERSION} < 20160220 226.sinclude "${.OBJDIR}/${__depend_obj}" 227.else 228.dinclude "${.OBJDIR}/${__depend_obj}" 229.endif 230.endfor 231.endif # !defined(_SKIP_READ_DEPEND) 232.endif # !defined(_meta_filemon) 233 234# Always run 'make depend' to generate dependencies early and to avoid the 235# need for manually running it. For the kernel this is mostly a NOP since 236# all dependencies are correctly added or accounted for. This is mostly to 237# ensure downstream uses of kernel-depend are handled. 238beforebuild: kernel-depend 239 240# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 241# For meta+filemon the .meta file is checked for since it is the dependency 242# file used. 243.for __obj in ${DEPENDOBJS:O:u} 244.if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \ 245 (!defined(_meta_filemon) && !exists(${.OBJDIR}/.depend.${__obj})) 246.if ${SYSTEM_OBJS:M${__obj}} 247${__obj}: ${OBJS_DEPEND_GUESS} 248.endif 249${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 250.elif defined(_meta_filemon) 251# For meta mode we still need to know which file to depend on to avoid 252# ambiguous suffix transformation rules from .PATH. Meta mode does not 253# use .depend files. We really only need source files, not headers. 254.if ${SYSTEM_OBJS:M${__obj}} 255${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 256.endif 257${__obj}: ${OBJS_DEPEND_GUESS.${__obj}:N*.h} 258.endif 259.endfor 260 261.NOPATH: .depend ${DEPENDFILES_OBJS} 262 263.depend: .PRECIOUS ${SRCS} 264 265_ILINKS= machine 266.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 267_ILINKS+= ${MACHINE_CPUARCH} 268.endif 269.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 270_ILINKS+= x86 271.endif 272 273# Ensure that the link exists without depending on it when it exists. 274.for _link in ${_ILINKS} 275.if !exists(${.OBJDIR}/${_link}) 276${SRCS} ${CLEAN:M*.o}: ${_link} 277.endif 278.endfor 279 280${_ILINKS}: 281 @case ${.TARGET} in \ 282 machine) \ 283 path=${S}/${MACHINE}/include ;; \ 284 *) \ 285 path=${S}/${.TARGET}/include ;; \ 286 esac ; \ 287 ${ECHO} ${.TARGET} "->" $$path ; \ 288 ln -fhs $$path ${.TARGET} 289 290# .depend needs include links so we remove them only together. 291kernel-cleandepend: .PHONY 292 rm -f ${DEPENDFILES} ${_ILINKS} 293 294kernel-tags: 295 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 296 sh $S/conf/systags.sh 297 298kernel-install: .PHONY 299 @if [ ! -f ${KERNEL_KO} ] ; then \ 300 echo "You must build a kernel first." ; \ 301 exit 1 ; \ 302 fi 303.if exists(${DESTDIR}${KODIR}) 304 -thiskernel=`sysctl -n kern.bootfile` ; \ 305 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 306 chflags -R noschg ${DESTDIR}${KODIR} ; \ 307 rm -rf ${DESTDIR}${KODIR} ; \ 308 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 309 else \ 310 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 311 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 312 rm -rf ${DESTDIR}${KODIR}.old ; \ 313 fi ; \ 314 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 315 if [ -n "${KERN_DEBUGDIR}" -a \ 316 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 317 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 318 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 319 fi ; \ 320 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 321 fi 322.endif 323 mkdir -p ${DESTDIR}${KODIR} 324 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 325.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 326 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 327 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 328.endif 329.if defined(KERNEL_EXTRA_INSTALL) 330 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 331.endif 332 333 334 335kernel-reinstall: 336 @-chflags -R noschg ${DESTDIR}${KODIR} 337 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 338.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 339 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 340.endif 341 342config.o env.o hints.o vers.o vnode_if.o: 343 ${NORMAL_C} 344 ${NORMAL_CTFCONVERT} 345 346config.ln env.ln hints.ln vers.ln vnode_if.ln: 347 ${NORMAL_LINT} 348 349vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 350 MAKE=${MAKE} sh $S/conf/newvers.sh ${KERN_IDENT} 351 352vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 353 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 354 355vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 356 $S/kern/vnode_if.src 357vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 358 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 359vnode_if_newproto.h: 360 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 361vnode_if_typedef.h: 362 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 363 364.if ${MFS_IMAGE:Uno} != "no" 365.if empty(MD_ROOT_SIZE_CONFIGURED) 366# Generate an object file from the file system image to embed in the kernel 367# via linking. Make sure the contents are in the mfs section and rename the 368# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 369# respectively. 370embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 371 ${OBJCOPY} --input-target binary \ 372 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 373 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 374 ${MFS_IMAGE} ${.TARGET} 375 ${OBJCOPY} \ 376 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 377 --redefine-sym \ 378 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 379 --redefine-sym \ 380 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 381 --redefine-sym \ 382 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 383 ${.TARGET} 384.endif 385.endif 386 387# XXX strictly, everything depends on Makefile because changes to ${PROF} 388# only appear there, but we don't handle that. 389 390.include "kern.mk" 391