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 $$3 }' \ 63 ${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h 64.endif 65# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build 66WRKDIRPREFIX?= ${MAKEOBJDIRPREFIX}${SRC_BASE}/sys/${KERNCONF} 67PORTSMODULESENV=\ 68 PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \ 69 SRC_BASE=${SRC_BASE} \ 70 OSVERSION=${OSRELDATE} \ 71 WRKDIRPREFIX=${WRKDIRPREFIX} 72 73# The WRKDIR needs to be cleaned before building, and trying to change the target 74# with a :C pattern below results in install -> instclean 75all: 76.for __i in ${PORTS_MODULES} 77 @${ECHO} "===> Ports module ${__i} (all)" 78 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean all 79.endfor 80 81.for __target in install reinstall clean 82${__target}: ports-${__target} 83ports-${__target}: 84.for __i in ${PORTS_MODULES} 85 @${ECHO} "===> Ports module ${__i} (${__target})" 86 cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/} 87.endfor 88.endfor 89.endif 90 91.ORDER: kernel-install modules-install 92 93beforebuild: .PHONY 94kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA} 95 96kernel-cleandir: kernel-clean kernel-cleandepend 97 98kernel-clobber: 99 find . -maxdepth 1 ! -type d ! -name version -delete 100 101kernel-obj: 102 103.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules) 104modules: modules-all 105 106.if !defined(NO_MODULES_OBJ) 107modules-all modules-depend: modules-obj 108.endif 109.endif 110 111.if !defined(DEBUG) 112FULLKERNEL= ${KERNEL_KO} 113.else 114FULLKERNEL= ${KERNEL_KO}.full 115${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug 116 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \ 117 ${FULLKERNEL} ${.TARGET} 118${KERNEL_KO}.debug: ${FULLKERNEL} 119 ${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET} 120install.debug reinstall.debug: gdbinit 121 cd ${.CURDIR}; ${MAKE} ${.TARGET:R} 122 123# Install gdbinit files for kernel debugging. 124gdbinit: 125 grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \ 126 sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit 127 cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR} 128.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH}) 129 cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \ 130 ${.CURDIR}/gdbinit.machine 131.endif 132.endif 133 134${FULLKERNEL}: ${SYSTEM_DEP} vers.o 135 @rm -f ${.TARGET} 136 @echo linking ${.TARGET} 137 ${SYSTEM_LD} 138.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE) 139 @sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE} 140.endif 141.if ${MK_CTF} != "no" 142 @echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ... 143 @${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 144.endif 145.if !defined(DEBUG) 146 ${OBJCOPY} --strip-debug ${.TARGET} 147.endif 148 ${SYSTEM_LD_TAIL} 149 150OBJS_DEPEND_GUESS+= assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} \ 151 ${MFILES:T:S/.m$/.h/} 152LNFILES= ${CFILES:T:S/.c$/.ln/} 153 154.for mfile in ${MFILES} 155# XXX the low quality .m.o rules gnerated by config are normally used 156# instead of the .m.c rules here. 157${mfile:T:S/.m$/.c/}: ${mfile} 158 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -c 159${mfile:T:S/.m$/.h/}: ${mfile} 160 ${AWK} -f $S/tools/makeobjops.awk ${mfile} -h 161.endfor 162 163kernel-clean: 164 rm -f *.o *.so *.So *.ko *.s eddep errs \ 165 ${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \ 166 linterrs tags vers.c \ 167 vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \ 168 ${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \ 169 ${CLEAN} 170 171lint: ${LNFILES} 172 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \ 173 tee -a linterrs 174 175# This is a hack. BFD "optimizes" away dynamic mode if there are no 176# dynamic references. We could probably do a '-Bforcedynamic' mode like 177# in the a.out ld. For now, this works. 178HACK_EXTRA_FLAGS?= -shared 179hack.So: Makefile 180 :> hack.c 181 ${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.So 182 rm -f hack.c 183 184assym.s: $S/kern/genassym.sh genassym.o 185 NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} 186 187genassym.o: $S/$M/$M/genassym.c 188 ${CC} -c ${CFLAGS:N-fno-common} $S/$M/$M/genassym.c 189 190${SYSTEM_OBJS} genassym.o vers.o: opt_global.h 191 192.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon) 193_meta_filemon= 1 194.endif 195# Skip reading .depend when not needed to speed up tree-walks 196# and simple lookups. 197# Also skip generating or including .depend.* files if in meta+filemon mode 198# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used. 199.if !empty(.MAKEFLAGS:M-V${_V_READ_DEPEND}) || make(obj) || make(clean*) || \ 200 make(install*) || make(kernel-obj) || make(kernel-clean*) || \ 201 make(kernel-install*) || defined(_meta_filemon) 202_SKIP_READ_DEPEND= 1 203.MAKE.DEPENDFILE= /dev/null 204.endif 205 206kernel-depend: .depend 207SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \ 208 ${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \ 209 ${MFILES:T:S/.m$/.h/} 210DEPENDFILES= .depend .depend.* 211DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o 212DEPENDFILES_OBJS= ${DEPENDOBJS:O:u:C/^/.depend./} 213.if ${MAKE_VERSION} < 20160220 214DEPEND_MP?= -MP 215.endif 216DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET} 217DEPEND_CFLAGS+= -MT${.TARGET} 218.if !defined(_meta_filemon) 219.if defined(.PARSEDIR) 220# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS 221# as those are the only ones we will include. 222DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != "" 223CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:} 224.else 225CFLAGS+= ${DEPEND_CFLAGS} 226.endif 227.if !defined(_SKIP_READ_DEPEND) 228.for __depend_obj in ${DEPENDFILES_OBJS} 229.if ${MAKE_VERSION} < 20160220 230.sinclude "${.OBJDIR}/${__depend_obj}" 231.else 232.dinclude "${.OBJDIR}/${__depend_obj}" 233.endif 234.endfor 235.endif # !defined(_SKIP_READ_DEPEND) 236.endif # !defined(_meta_filemon) 237 238# Always run 'make depend' to generate dependencies early and to avoid the 239# need for manually running it. For the kernel this is mostly a NOP since 240# all dependencies are correctly added or accounted for. This is mostly to 241# ensure downstream uses of kernel-depend are handled. 242beforebuild: kernel-depend 243 244# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet. 245# For meta+filemon the .meta file is checked for since it is the dependency 246# file used. 247.for __obj in ${DEPENDOBJS:O:u} 248.if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \ 249 (!defined(_meta_filemon) && !exists(${.OBJDIR}/.depend.${__obj})) 250.if ${SYSTEM_OBJS:M${__obj}} 251${__obj}: ${OBJS_DEPEND_GUESS} 252.endif 253${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 254.elif defined(_meta_filemon) 255# For meta mode we still need to know which file to depend on to avoid 256# ambiguous suffix transformation rules from .PATH. Meta mode does not 257# use .depend files. We really only need source files, not headers since 258# they are typically in SRCS/beforebuild already. For target-specific 259# guesses do include headers though since they may not be in SRCS. 260.if ${SYSTEM_OBJS:M${__obj}} 261${__obj}: ${OBJS_DEPEND_GUESS:N*.h} 262.endif 263${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} 264.endif 265.endfor 266 267.NOPATH: .depend ${DEPENDFILES_OBJS} 268 269.depend: .PRECIOUS ${SRCS} 270 271_ILINKS= machine 272.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 273_ILINKS+= ${MACHINE_CPUARCH} 274.endif 275.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 276_ILINKS+= x86 277.endif 278 279# Ensure that the link exists without depending on it when it exists. 280.for _link in ${_ILINKS} 281.if !exists(${.OBJDIR}/${_link}) 282${SRCS} ${CLEAN:M*.o}: ${_link} 283.endif 284.endfor 285 286${_ILINKS}: 287 @case ${.TARGET} in \ 288 machine) \ 289 path=${S}/${MACHINE}/include ;; \ 290 *) \ 291 path=${S}/${.TARGET}/include ;; \ 292 esac ; \ 293 ${ECHO} ${.TARGET} "->" $$path ; \ 294 ln -fhs $$path ${.TARGET} 295 296# .depend needs include links so we remove them only together. 297kernel-cleandepend: .PHONY 298 rm -f ${DEPENDFILES} ${_ILINKS} 299 300kernel-tags: 301 @[ -f .depend ] || { echo "you must make depend first"; exit 1; } 302 sh $S/conf/systags.sh 303 304kernel-install: .PHONY 305 @if [ ! -f ${KERNEL_KO} ] ; then \ 306 echo "You must build a kernel first." ; \ 307 exit 1 ; \ 308 fi 309.if exists(${DESTDIR}${KODIR}) 310 -thiskernel=`sysctl -n kern.bootfile` ; \ 311 if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \ 312 chflags -R noschg ${DESTDIR}${KODIR} ; \ 313 rm -rf ${DESTDIR}${KODIR} ; \ 314 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \ 315 else \ 316 if [ -d ${DESTDIR}${KODIR}.old ] ; then \ 317 chflags -R noschg ${DESTDIR}${KODIR}.old ; \ 318 rm -rf ${DESTDIR}${KODIR}.old ; \ 319 fi ; \ 320 mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \ 321 if [ -n "${KERN_DEBUGDIR}" -a \ 322 -d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \ 323 rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 324 mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \ 325 fi ; \ 326 sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \ 327 fi 328.endif 329 mkdir -p ${DESTDIR}${KODIR} 330 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 331.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 332 mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR} 333 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 334.endif 335.if defined(KERNEL_EXTRA_INSTALL) 336 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/ 337.endif 338 339 340 341kernel-reinstall: 342 @-chflags -R noschg ${DESTDIR}${KODIR} 343 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/ 344.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 345 ${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/ 346.endif 347 348config.o env.o hints.o vers.o vnode_if.o: 349 ${NORMAL_C} 350 ${NORMAL_CTFCONVERT} 351 352config.ln env.ln hints.ln vers.ln vnode_if.ln: 353 ${NORMAL_LINT} 354 355vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP} 356 MAKE=${MAKE} sh $S/conf/newvers.sh ${KERN_IDENT} 357 358vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src 359 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c 360 361vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \ 362 $S/kern/vnode_if.src 363vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 364 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h 365vnode_if_newproto.h: 366 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p 367vnode_if_typedef.h: 368 ${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q 369 370.if ${MFS_IMAGE:Uno} != "no" 371.if empty(MD_ROOT_SIZE_CONFIGURED) 372# Generate an object file from the file system image to embed in the kernel 373# via linking. Make sure the contents are in the mfs section and rename the 374# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size, 375# respectively. 376embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE} 377 ${OBJCOPY} --input-target binary \ 378 --output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \ 379 --binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \ 380 ${MFS_IMAGE} ${.TARGET} 381 ${OBJCOPY} \ 382 --rename-section .data=mfs,contents,alloc,load,readonly,data \ 383 --redefine-sym \ 384 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \ 385 --redefine-sym \ 386 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \ 387 --redefine-sym \ 388 _binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \ 389 ${.TARGET} 390.endif 391.endif 392 393# XXX strictly, everything depends on Makefile because changes to ${PROF} 394# only appear there, but we don't handle that. 395 396.include "kern.mk" 397