sys/conf/kmod.mk

   1 #       From: @(#)bsd.prog.mk   5.26 (Berkeley) 6/25/91
   2 # $FreeBSD$
   3 #
   4 # The include file <bsd.kmod.mk> handles building and installing loadable
   5 # kernel modules.
   6 #
   7 #
   8 # +++ variables +++
   9 #
  10 # CLEANFILES    Additional files to remove for the clean and cleandir targets.
  11 #
  12 # EXPORT_SYMS   A list of symbols that should be exported from the module,
  13 #               or the name of a file containing a list of symbols, or YES
  14 #               to export all symbols.  If not defined, no symbols are
  15 #               exported.
  16 #
  17 # KMOD          The name of the kernel module to build.
  18 #
  19 # KMODDIR       Base path for kernel modules (see kld(4)). [/boot/kernel]
  20 #
  21 # KMODOWN       Module file owner. [${BINOWN}]
  22 #
  23 # KMODGRP       Module file group. [${BINGRP}]
  24 #
  25 # KMODMODE      Module file mode. [${BINMODE}]
  26 #
  27 # KMODLOAD      Command to load a kernel module [/sbin/kldload]
  28 #
  29 # KMODUNLOAD    Command to unload a kernel module [/sbin/kldunload]
  30 #
  31 # KMODISLOADED  Command to check whether a kernel module is
  32 #               loaded [/sbin/kldstat -q -n]
  33 #
  34 # PROG          The name of the kernel module to build.
  35 #               If not supplied, ${KMOD}.ko is used.
  36 #
  37 # SRCS          List of source files.
  38 #
  39 # FIRMWS        List of firmware images in format filename:shortname:version
  40 #
  41 # FIRMWARE_LICENSE
  42 #               Set to the name of the license the user has to agree on in
  43 #               order to use this firmware. See /usr/share/doc/legal
  44 #
  45 # DESTDIR       The tree where the module gets installed. [not set]
  46 #
  47 # KERNBUILDDIR
  48 #               Set to the location of the kernel build directory where
  49 #               the opt_*.h files, .o's and kernel winds up.
  50 #
  51 # +++ targets +++
  52 #
  53 #       install:
  54 #               install the kernel module; if the Makefile
  55 #               does not itself define the target install, the targets
  56 #               beforeinstall and afterinstall may also be used to cause
  57 #               actions immediately before and after the install target
  58 #               is executed.
  59 #
  60 #       load:
  61 #               Load a module.
  62 #
  63 #       unload:
  64 #               Unload a module.
  65 #
  66 #       reload:
  67 #               Unload if loaded, then load.
  68 #
  69
  70 AWK?=           awk
  71 KMODLOAD?=      /sbin/kldload
  72 KMODUNLOAD?=    /sbin/kldunload
  73 KMODISLOADED?=  /sbin/kldstat -q -n
  74 OBJCOPY?=       objcopy
  75
  76 .include <bsd.init.mk>
  77 # Grab all the options for a kernel build. For backwards compat, we need to
  78 # do this after bsd.own.mk.
  79 .include "kern.opts.mk"
  80 .include <bsd.compiler.mk>
  81 .include "config.mk"
  82
  83 # Search for kernel source tree in standard places.
  84 .if empty(KERNBUILDDIR)
  85 .if !defined(SYSDIR)
  86 .for _dir in ${SRCTOP:D${SRCTOP}/sys} \
  87     ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
  88 .if !defined(SYSDIR) && exists(${_dir}/kern/)
  89 SYSDIR= ${_dir:tA}
  90 .endif
  91 .endfor
  92 .endif
  93 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
  94 .error "can't find kernel source tree"
  95 .endif
  96 .endif
  97
  98 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
  99
 100 # amd64 and mips use direct linking for kmod, all others use shared binaries
 101 .if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
 102 __KLD_SHARED=yes
 103 .else
 104 __KLD_SHARED=no
 105 .endif
 106
 107 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
 108 CFLAGS+=        -fno-strict-aliasing
 109 .endif
 110 WERROR?=        -Werror
 111 CFLAGS+=        ${WERROR}
 112 CFLAGS+=        -D_KERNEL
 113 CFLAGS+=        -DKLD_MODULE
 114 .if defined(MODULE_TIED)
 115 CFLAGS+=        -DKLD_TIED
 116 .endif
 117
 118 # Don't use any standard or source-relative include directories.
 119 NOSTDINC=       -nostdinc
 120 CFLAGS:=        ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
 121 .if defined(KERNBUILDDIR)
 122 CFLAGS+=        -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
 123 .endif
 124
 125 # Add -I paths for system headers.  Individual module makefiles don't
 126 # need any -I paths for this.  Similar defaults for .PATH can't be
 127 # set because there are no standard paths for non-headers.
 128 CFLAGS+=        -I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
 129
 130 CFLAGS.gcc+=    -finline-limit=${INLINE_LIMIT}
 131 CFLAGS.gcc+=    -fms-extensions
 132 CFLAGS.gcc+= --param inline-unit-growth=100
 133 CFLAGS.gcc+= --param large-function-growth=1000
 134
 135 # Disallow common variables, and if we end up with commons from
 136 # somewhere unexpected, allocate storage for them in the module itself.
 137 CFLAGS+=        -fno-common
 138 LDFLAGS+=       -d -warn-common
 139
 140 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 141 LDFLAGS+=       --build-id=sha1
 142 .endif
 143
 144 CFLAGS+=        ${DEBUG_FLAGS}
 145 .if ${MACHINE_CPUARCH} == amd64
 146 CFLAGS+=        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 147 .endif
 148
 149 .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
 150 CFLAGS+=        -fPIC
 151 .endif
 152
 153 # Temporary workaround for PR 196407, which contains the fascinating details.
 154 # Don't allow clang to use fpu instructions or registers in kernel modules.
 155 .if ${MACHINE_CPUARCH} == arm
 156 .if ${COMPILER_VERSION} < 30800
 157 CFLAGS.clang+=  -mllvm -arm-use-movt=0
 158 .else
 159 CFLAGS.clang+=  -mno-movt
 160 .endif
 161 CFLAGS.clang+=  -mfpu=none
 162 CFLAGS+=        -funwind-tables
 163 .endif
 164
 165 .if ${MACHINE_CPUARCH} == powerpc
 166 CFLAGS+=        -mlongcall -fno-omit-frame-pointer
 167 .endif
 168
 169 .if ${MACHINE_CPUARCH} == mips
 170 CFLAGS+=        -G0 -fno-pic -mno-abicalls -mlong-calls
 171 .endif
 172
 173 .if defined(DEBUG) || defined(DEBUG_FLAGS)
 174 CTFFLAGS+=      -g
 175 .endif
 176
 177 .if defined(FIRMWS)
 178 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
 179         ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 180             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 181
 182 SRCS+=  ${KMOD:S/$/.c/}
 183 CLEANFILES+=    ${KMOD:S/$/.c/}
 184
 185 .for _firmw in ${FIRMWS}
 186 ${_firmw:C/\:.*$/.fwo/:T}:      ${_firmw:C/\:.*$//}
 187         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 188         @if [ -e ${_firmw:C/\:.*$//} ]; then                    \
 189                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 190                     -m ${LD_EMULATION} -r -d                    \
 191                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 192         else                                                    \
 193                 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 194                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 195                     -m ${LD_EMULATION} -r -d                    \
 196                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 197                 rm ${_firmw:C/\:.*$//};                         \
 198         fi
 199
 200 OBJS+=  ${_firmw:C/\:.*$/.fwo/:T}
 201 .endfor
 202 .endif
 203
 204 # Conditionally include SRCS based on kernel config options.
 205 .for _o in ${KERN_OPTS}
 206 SRCS+=${SRCS.${_o}}
 207 .endfor
 208
 209 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 210
 211 .if !defined(PROG)
 212 PROG=   ${KMOD}.ko
 213 .endif
 214
 215 .if !defined(DEBUG_FLAGS)
 216 FULLPROG=       ${PROG}
 217 .else
 218 FULLPROG=       ${PROG}.full
 219 ${PROG}: ${FULLPROG} ${PROG}.debug
 220         ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
 221             ${FULLPROG} ${.TARGET}
 222 ${PROG}.debug: ${FULLPROG}
 223         ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
 224 .endif
 225
 226 .if ${__KLD_SHARED} == yes
 227 ${FULLPROG}: ${KMOD}.kld
 228         ${LD} -m ${LD_EMULATION} -Bshareable -znotext ${_LDFLAGS} \
 229             -o ${.TARGET} ${KMOD}.kld
 230 .if !defined(DEBUG_FLAGS)
 231         ${OBJCOPY} --strip-debug ${.TARGET}
 232 .endif
 233 .endif
 234
 235 EXPORT_SYMS?=   NO
 236 .if ${EXPORT_SYMS} != YES
 237 CLEANFILES+=    export_syms
 238 .endif
 239
 240 .if ${__KLD_SHARED} == yes
 241 ${KMOD}.kld: ${OBJS}
 242 .else
 243 ${FULLPROG}: ${OBJS}
 244 .endif
 245         ${LD} -m ${LD_EMULATION} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 246 .if ${MK_CTF} != "no"
 247         ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
 248 .endif
 249 .if defined(EXPORT_SYMS)
 250 .if ${EXPORT_SYMS} != YES
 251 .if ${EXPORT_SYMS} == NO
 252         :> export_syms
 253 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
 254         echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
 255 .else
 256         grep -v '^#' < ${EXPORT_SYMS} > export_syms
 257 .endif
 258         ${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
 259             export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
 260 .endif
 261 .endif # defined(EXPORT_SYMS)
 262 .if defined(PREFIX_SYMS)
 263         ${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
 264             ${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
 265 .endif
 266 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
 267         ${OBJCOPY} --strip-debug ${.TARGET}
 268 .endif
 269
 270 .if ${COMPILER_TYPE} == "clang" || \
 271     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 272 _MAP_DEBUG_PREFIX= yes
 273 .endif
 274
 275 _ILINKS=machine
 276 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
 277 _ILINKS+=${MACHINE_CPUARCH}
 278 .endif
 279 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 280 _ILINKS+=x86
 281 .endif
 282 CLEANFILES+=${_ILINKS}
 283
 284 all: ${PROG}
 285
 286 beforedepend: ${_ILINKS}
 287 beforebuild: ${_ILINKS}
 288
 289 # Ensure that the links exist without depending on it when it exists which
 290 # causes all the modules to be rebuilt when the directory pointed to changes.
 291 # Ensure that debug info references the path in the source tree.
 292 .for _link in ${_ILINKS}
 293 .if !exists(${.OBJDIR}/${_link})
 294 OBJS_DEPEND_GUESS+=     ${_link}
 295 .endif
 296 .if defined(_MAP_DEBUG_PREFIX)
 297 .if ${_link} == "machine"
 298 CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include
 299 .else
 300 CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include
 301 .endif
 302 .endif
 303 .endfor
 304
 305 .NOPATH: ${_ILINKS}
 306
 307 ${_ILINKS}:
 308         @case ${.TARGET} in \
 309         machine) \
 310                 path=${SYSDIR}/${MACHINE}/include ;; \
 311         *) \
 312                 path=${SYSDIR}/${.TARGET:T}/include ;; \
 313         esac ; \
 314         path=`(cd $$path && /bin/pwd)` ; \
 315         ${ECHO} ${.TARGET:T} "->" $$path ; \
 316         ln -fns $$path ${.TARGET:T}
 317
 318 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
 319
 320 .if defined(DEBUG_FLAGS)
 321 CLEANFILES+= ${FULLPROG} ${PROG}.debug
 322 .endif
 323
 324 .if !target(install)
 325
 326 _INSTALLFLAGS:= ${INSTALLFLAGS}
 327 .for ie in ${INSTALLFLAGS_EDIT}
 328 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 329 .endfor
 330
 331 .if !target(realinstall)
 332 KERN_DEBUGDIR?= ${DEBUGDIR}
 333 realinstall: _kmodinstall
 334 .ORDER: beforeinstall _kmodinstall
 335 _kmodinstall: .PHONY
 336         ${INSTALL} -T release -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 337             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
 338 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 339         ${INSTALL} -T debug -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 340             ${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}/
 341 .endif
 342
 343 .include <bsd.links.mk>
 344
 345 .if !defined(NO_XREF)
 346 afterinstall: _kldxref
 347 .ORDER: realinstall _kldxref
 348 .ORDER: _installlinks _kldxref
 349 _kldxref: .PHONY
 350         @if type kldxref >/dev/null 2>&1; then \
 351                 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
 352                 kldxref ${DESTDIR}${KMODDIR}; \
 353         fi
 354 .endif
 355 .endif # !target(realinstall)
 356
 357 .endif # !target(install)
 358
 359 .if !target(load)
 360 load: ${PROG} .PHONY
 361         ${KMODLOAD} -v ${.OBJDIR}/${PROG}
 362 .endif
 363
 364 .if !target(unload)
 365 unload: .PHONY
 366         if ${KMODISLOADED} ${PROG} ; then ${KMODUNLOAD} -v ${PROG} ; fi
 367 .endif
 368
 369 .if !target(reload)
 370 reload: unload load .PHONY
 371 .endif
 372
 373 .if defined(KERNBUILDDIR)
 374 .PATH: ${KERNBUILDDIR}
 375 CFLAGS+=        -I${KERNBUILDDIR}
 376 .for _src in ${SRCS:Mopt_*.h}
 377 CLEANFILES+=    ${_src}
 378 .if !target(${_src})
 379 ${_src}:
 380         ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
 381 .endif
 382 .endfor
 383 .else
 384 .for _src in ${SRCS:Mopt_*.h}
 385 CLEANFILES+=    ${_src}
 386 .if !target(${_src})
 387 ${_src}:
 388         :> ${.TARGET}
 389 .endif
 390 .endfor
 391 .endif
 392
 393 # Add the sanitizer C flags
 394 CFLAGS+=        ${SAN_CFLAGS}
 395
 396 # Add the gcov flags
 397 CFLAGS+=        ${GCOV_CFLAGS}
 398
 399 # Respect configuration-specific C flags.
 400 CFLAGS+=        ${ARCH_FLAGS} ${CONF_CFLAGS}
 401
 402 .if !empty(SRCS:Mvnode_if.c)
 403 CLEANFILES+=    vnode_if.c
 404 vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
 405         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
 406 .endif
 407
 408 .if !empty(SRCS:Mvnode_if.h)
 409 CLEANFILES+=    vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
 410 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
 411     ${SYSDIR}/kern/vnode_if.src
 412 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
 413         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
 414 vnode_if_newproto.h:
 415         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
 416 vnode_if_typedef.h:
 417         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
 418 .endif
 419
 420 # Build _if.[ch] from _if.m, and clean them when we're done.
 421 # __MPATH defined in config.mk
 422 _MFILES=${__MPATH:T:O}
 423 _MPATH=${__MPATH:H:O:u}
 424 .PATH.m: ${_MPATH}
 425 .for _i in ${SRCS:M*_if.[ch]}
 426 _MATCH=M${_i:R:S/$/.m/}
 427 _MATCHES=${_MFILES:${_MATCH}}
 428 .if !empty(_MATCHES)
 429 CLEANFILES+=    ${_i}
 430 .endif
 431 .endfor # _i
 432 .m.c:   ${SYSDIR}/tools/makeobjops.awk
 433         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
 434
 435 .m.h:   ${SYSDIR}/tools/makeobjops.awk
 436         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
 437
 438 .for _i in mii pccard
 439 .if !empty(SRCS:M${_i}devs.h)
 440 CLEANFILES+=    ${_i}devs.h
 441 ${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 442         ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 443 .endif
 444 .endfor # _i
 445
 446 .if !empty(SRCS:Mbhnd_nvram_map.h)
 447 CLEANFILES+=    bhnd_nvram_map.h
 448 bhnd_nvram_map.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 449     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 450     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 451 bhnd_nvram_map.h:
 452         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 453             ${SYSDIR}/dev/bhnd/nvram/nvram_map -h
 454 .endif
 455
 456 .if !empty(SRCS:Mbhnd_nvram_map_data.h)
 457 CLEANFILES+=    bhnd_nvram_map_data.h
 458 bhnd_nvram_map_data.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 459     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 460     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 461 bhnd_nvram_map_data.h:
 462         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 463             ${SYSDIR}/dev/bhnd/nvram/nvram_map -d
 464 .endif
 465
 466 .if !empty(SRCS:Musbdevs.h)
 467 CLEANFILES+=    usbdevs.h
 468 usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 469         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
 470 .endif
 471
 472 .if !empty(SRCS:Musbdevs_data.h)
 473 CLEANFILES+=    usbdevs_data.h
 474 usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 475         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
 476 .endif
 477
 478 .if !empty(SRCS:Macpi_quirks.h)
 479 CLEANFILES+=    acpi_quirks.h
 480 acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 481         ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 482 .endif
 483
 484 .if !empty(SRCS:Massym.inc) || !empty(DPSRCS:Massym.inc)
 485 CLEANFILES+=    assym.inc
 486 DEPENDOBJS+=    genassym.o
 487 DPSRCS+=        offset.inc
 488 .endif
 489 .if defined(MODULE_TIED)
 490 DPSRCS+=        offset.inc
 491 .endif
 492 .if !empty(SRCS:Moffset.inc) || !empty(DPSRCS:Moffset.inc)
 493 CLEANFILES+=    offset.inc genoffset.o
 494 DEPENDOBJS+=    genoffset.o
 495 .endif
 496 assym.inc: genassym.o
 497 offset.inc: genoffset.o
 498 assym.inc: ${SYSDIR}/kern/genassym.sh
 499         sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
 500 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc
 501 genassym.o: ${SRCS:Mopt_*.h}
 502         ${CC} -c ${CFLAGS:N-flto:N-fno-common} \
 503             ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
 504 offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o
 505         sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET}
 506 genoffset.o: ${SYSDIR}/kern/genoffset.c
 507 genoffset.o: ${SRCS:Mopt_*.h}
 508         ${CC} -c ${CFLAGS:N-flto:N-fno-common} \
 509             ${SYSDIR}/kern/genoffset.c
 510
 511 CLEANDEPENDFILES+=      ${_ILINKS}
 512 # .depend needs include links so we remove them only together.
 513 cleanilinks:
 514         rm -f ${_ILINKS}
 515
 516 OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 517 .if defined(KERNBUILDDIR)
 518 OBJS_DEPEND_GUESS+= opt_global.h
 519 .endif
 520
 521 .include <bsd.dep.mk>
 522 .include <bsd.clang-analyze.mk>
 523 .include <bsd.obj.mk>
 524 .include "kern.mk"