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 "kmod.opts.mk"
  77 .include <bsd.sysdir.mk>
  78
  79 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
  80
  81 # amd64 and mips use direct linking for kmod, all others use shared binaries
  82 .if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
  83 __KLD_SHARED=yes
  84 .else
  85 __KLD_SHARED=no
  86 .endif
  87
  88 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
  89 CFLAGS+=        -fno-strict-aliasing
  90 .endif
  91 .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000
  92 WERROR?=        -Wno-error
  93 .else
  94 WERROR?=        -Werror
  95 .endif
  96
  97 CFLAGS+=        ${WERROR}
  98 CFLAGS+=        -D_KERNEL
  99 CFLAGS+=        -DKLD_MODULE
 100 .if defined(MODULE_TIED)
 101 CFLAGS+=        -DKLD_TIED
 102 .endif
 103
 104 # Don't use any standard or source-relative include directories.
 105 NOSTDINC=       -nostdinc
 106 CFLAGS:=        ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
 107 .if defined(KERNBUILDDIR)
 108 CFLAGS+=        -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
 109 .endif
 110
 111 # Add -I paths for system headers.  Individual module makefiles don't
 112 # need any -I paths for this.  Similar defaults for .PATH can't be
 113 # set because there are no standard paths for non-headers.
 114 CFLAGS+=        -I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
 115
 116 CFLAGS.gcc+=    -finline-limit=${INLINE_LIMIT}
 117 CFLAGS.gcc+=    -fms-extensions
 118 CFLAGS.gcc+= --param inline-unit-growth=100
 119 CFLAGS.gcc+= --param large-function-growth=1000
 120
 121 # Disallow common variables, and if we end up with commons from
 122 # somewhere unexpected, allocate storage for them in the module itself.
 123 CFLAGS+=        -fno-common
 124 LDFLAGS+=       -d -warn-common
 125
 126 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 127 LDFLAGS+=       --build-id=sha1
 128 .endif
 129
 130 CFLAGS+=        ${DEBUG_FLAGS}
 131 .if ${MACHINE_CPUARCH} == amd64
 132 CFLAGS+=        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 133 .endif
 134
 135 .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv" || \
 136     ${MACHINE_CPUARCH} == "powerpc"
 137 CFLAGS+=        -fPIC
 138 .endif
 139
 140 # Temporary workaround for PR 196407, which contains the fascinating details.
 141 # Don't allow clang to use fpu instructions or registers in kernel modules.
 142 .if ${MACHINE_CPUARCH} == arm
 143 .if ${COMPILER_VERSION} < 30800
 144 CFLAGS.clang+=  -mllvm -arm-use-movt=0
 145 .else
 146 CFLAGS.clang+=  -mno-movt
 147 .endif
 148 CFLAGS.clang+=  -mfpu=none
 149 CFLAGS+=        -funwind-tables
 150 .endif
 151
 152 .if ${MACHINE_CPUARCH} == powerpc
 153 CFLAGS+=        -mlongcall -fno-omit-frame-pointer
 154 .if ${LINKER_TYPE} == "lld"
 155 # TOC optimization in LLD (9.0) currently breaks kernel modules, so disable it
 156 LDFLAGS+=       --no-toc-optimize
 157 .endif
 158 .endif
 159
 160 .if ${MACHINE_CPUARCH} == mips
 161 CFLAGS+=        -G0 -fno-pic -mno-abicalls -mlong-calls
 162 .endif
 163
 164 .if defined(DEBUG) || defined(DEBUG_FLAGS)
 165 CTFFLAGS+=      -g
 166 .endif
 167
 168 .if defined(FIRMWS)
 169 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
 170         ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 171             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 172
 173 SRCS+=  ${KMOD:S/$/.c/}
 174 CLEANFILES+=    ${KMOD:S/$/.c/}
 175
 176 .for _firmw in ${FIRMWS}
 177 ${_firmw:C/\:.*$/.fwo/:T}:      ${_firmw:C/\:.*$//}
 178         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 179         @if [ -e ${_firmw:C/\:.*$//} ]; then                    \
 180                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 181                     -m ${LD_EMULATION} -r -d                    \
 182                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 183         else                                                    \
 184                 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 185                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 186                     -m ${LD_EMULATION} -r -d                    \
 187                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 188                 rm ${_firmw:C/\:.*$//};                         \
 189         fi
 190
 191 OBJS+=  ${_firmw:C/\:.*$/.fwo/:T}
 192 .endfor
 193 .endif
 194
 195 # Conditionally include SRCS based on kernel config options.
 196 .for _o in ${KERN_OPTS}
 197 SRCS+=${SRCS.${_o}}
 198 .endfor
 199
 200 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 201
 202 .if !defined(PROG)
 203 PROG=   ${KMOD}.ko
 204 .endif
 205
 206 .if !defined(DEBUG_FLAGS)
 207 FULLPROG=       ${PROG}
 208 .else
 209 FULLPROG=       ${PROG}.full
 210 ${PROG}: ${FULLPROG} ${PROG}.debug
 211         ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
 212             ${FULLPROG} ${.TARGET}
 213 ${PROG}.debug: ${FULLPROG}
 214         ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
 215 .endif
 216
 217 .if ${__KLD_SHARED} == yes
 218 ${FULLPROG}: ${KMOD}.kld
 219         ${LD} -m ${LD_EMULATION} -Bshareable -znotext -znorelro ${_LDFLAGS} \
 220             -o ${.TARGET} ${KMOD}.kld
 221 .if !defined(DEBUG_FLAGS)
 222         ${OBJCOPY} --strip-debug ${.TARGET}
 223 .endif
 224 .endif
 225
 226 EXPORT_SYMS?=   NO
 227 .if ${EXPORT_SYMS} != YES
 228 CLEANFILES+=    export_syms
 229 .endif
 230
 231 .if exists(${SYSDIR}/conf/ldscript.kmod.${MACHINE_ARCH})
 232 LDSCRIPT_FLAGS?= -T ${SYSDIR}/conf/ldscript.kmod.${MACHINE_ARCH}
 233 .endif
 234
 235 .if ${__KLD_SHARED} == yes
 236 ${KMOD}.kld: ${OBJS}
 237 .else
 238 ${FULLPROG}: ${OBJS}
 239 .endif
 240         ${LD} -m ${LD_EMULATION} ${_LDFLAGS} ${LDSCRIPT_FLAGS} -r -d \
 241             -o ${.TARGET} ${OBJS}
 242 .if ${MK_CTF} != "no"
 243         ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
 244 .endif
 245 .if defined(EXPORT_SYMS)
 246 .if ${EXPORT_SYMS} != YES
 247 .if ${EXPORT_SYMS} == NO
 248         :> export_syms
 249 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
 250         echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
 251 .else
 252         grep -v '^#' < ${EXPORT_SYMS} > export_syms
 253 .endif
 254         ${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
 255             export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
 256 .endif
 257 .endif # defined(EXPORT_SYMS)
 258 .if defined(PREFIX_SYMS)
 259         ${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
 260             ${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
 261 .endif
 262 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
 263         ${OBJCOPY} --strip-debug ${.TARGET}
 264 .endif
 265
 266 .if ${COMPILER_TYPE} == "clang" || \
 267     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 268 _MAP_DEBUG_PREFIX= yes
 269 .endif
 270
 271 _ILINKS=machine
 272 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 273 _ILINKS+=x86
 274 .endif
 275 CLEANFILES+=${_ILINKS}
 276
 277 all: ${PROG}
 278
 279 beforedepend: ${_ILINKS}
 280 beforebuild: ${_ILINKS}
 281
 282 # Ensure that the links exist without depending on it when it exists which
 283 # causes all the modules to be rebuilt when the directory pointed to changes.
 284 # Ensure that debug info references the path in the source tree.
 285 .for _link in ${_ILINKS}
 286 .if !exists(${.OBJDIR}/${_link})
 287 OBJS_DEPEND_GUESS+=     ${_link}
 288 .endif
 289 .if defined(_MAP_DEBUG_PREFIX)
 290 .if ${_link} == "machine"
 291 CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include
 292 .else
 293 CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include
 294 .endif
 295 .endif
 296 .endfor
 297
 298 .NOPATH: ${_ILINKS}
 299
 300 ${_ILINKS}:
 301         @case ${.TARGET} in \
 302         machine) \
 303                 path=${SYSDIR}/${MACHINE}/include ;; \
 304         *) \
 305                 path=${SYSDIR}/${.TARGET:T}/include ;; \
 306         esac ; \
 307         path=`(cd $$path && /bin/pwd)` ; \
 308         ${ECHO} ${.TARGET:T} "->" $$path ; \
 309         ln -fns $$path ${.TARGET:T}
 310
 311 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
 312
 313 .if defined(DEBUG_FLAGS)
 314 CLEANFILES+= ${FULLPROG} ${PROG}.debug
 315 .endif
 316
 317 .if !target(install)
 318
 319 _INSTALLFLAGS:= ${INSTALLFLAGS}
 320 .for ie in ${INSTALLFLAGS_EDIT}
 321 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 322 .endfor
 323
 324 .if !target(realinstall)
 325 KERN_DEBUGDIR?= ${DEBUGDIR}
 326 realinstall: _kmodinstall
 327 .ORDER: beforeinstall _kmodinstall
 328 _kmodinstall: .PHONY
 329         ${INSTALL} -T release -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 330             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
 331 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 332         ${INSTALL} -T debug -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 333             ${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}/
 334 .endif
 335
 336 .include <bsd.links.mk>
 337
 338 .if !defined(NO_XREF)
 339 afterinstall: _kldxref
 340 .ORDER: realinstall _kldxref
 341 .ORDER: _installlinks _kldxref
 342 _kldxref: .PHONY
 343         @if type kldxref >/dev/null 2>&1; then \
 344                 ${ECHO} ${KLDXREF_CMD} ${DESTDIR}${KMODDIR}; \
 345                 ${KLDXREF_CMD} ${DESTDIR}${KMODDIR}; \
 346         fi
 347 .endif
 348 .endif # !target(realinstall)
 349
 350 .endif # !target(install)
 351
 352 .if !target(load)
 353 load: ${PROG} .PHONY
 354         ${KMODLOAD} -v ${.OBJDIR}/${PROG}
 355 .endif
 356
 357 .if !target(unload)
 358 unload: .PHONY
 359         if ${KMODISLOADED} ${PROG} ; then ${KMODUNLOAD} -v ${PROG} ; fi
 360 .endif
 361
 362 .if !target(reload)
 363 reload: unload load .PHONY
 364 .endif
 365
 366 .if defined(KERNBUILDDIR)
 367 .PATH: ${KERNBUILDDIR}
 368 CFLAGS+=        -I${KERNBUILDDIR}
 369 .for _src in ${SRCS:Mopt_*.h}
 370 CLEANFILES+=    ${_src}
 371 .if !target(${_src})
 372 ${_src}:
 373         ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
 374 .endif
 375 .endfor
 376 .else
 377 .for _src in ${SRCS:Mopt_*.h}
 378 CLEANFILES+=    ${_src}
 379 .if !target(${_src})
 380 ${_src}:
 381         :> ${.TARGET}
 382 .endif
 383 .endfor
 384 .endif
 385
 386 # Add the sanitizer C flags
 387 CFLAGS+=        ${SAN_CFLAGS}
 388
 389 # Add the gcov flags
 390 CFLAGS+=        ${GCOV_CFLAGS}
 391
 392 # Respect configuration-specific C flags.
 393 CFLAGS+=        ${ARCH_FLAGS} ${CONF_CFLAGS}
 394
 395 .if !empty(SRCS:Mvnode_if.c)
 396 CLEANFILES+=    vnode_if.c
 397 vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
 398         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
 399 .endif
 400
 401 .if !empty(SRCS:Mvnode_if.h)
 402 CLEANFILES+=    vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
 403 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
 404     ${SYSDIR}/kern/vnode_if.src
 405 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
 406         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
 407 vnode_if_newproto.h:
 408         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
 409 vnode_if_typedef.h:
 410         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
 411 .endif
 412
 413 # Build _if.[ch] from _if.m, and clean them when we're done.
 414 # __MPATH defined in config.mk
 415 _MFILES=${__MPATH:T:O}
 416 _MPATH=${__MPATH:H:O:u}
 417 .PATH.m: ${_MPATH}
 418 .for _i in ${SRCS:M*_if.[ch]}
 419 _MATCH=M${_i:R:S/$/.m/}
 420 _MATCHES=${_MFILES:${_MATCH}}
 421 .if !empty(_MATCHES)
 422 CLEANFILES+=    ${_i}
 423 .endif
 424 .endfor # _i
 425 .m.c:   ${SYSDIR}/tools/makeobjops.awk
 426         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
 427
 428 .m.h:   ${SYSDIR}/tools/makeobjops.awk
 429         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
 430
 431 .for _i in mii pccard
 432 .if !empty(SRCS:M${_i}devs.h)
 433 CLEANFILES+=    ${_i}devs.h
 434 ${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 435         ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 436 .endif
 437 .endfor # _i
 438
 439 .if !empty(SRCS:Mbhnd_nvram_map.h)
 440 CLEANFILES+=    bhnd_nvram_map.h
 441 bhnd_nvram_map.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 442     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 443     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 444 bhnd_nvram_map.h:
 445         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 446             ${SYSDIR}/dev/bhnd/nvram/nvram_map -h
 447 .endif
 448
 449 .if !empty(SRCS:Mbhnd_nvram_map_data.h)
 450 CLEANFILES+=    bhnd_nvram_map_data.h
 451 bhnd_nvram_map_data.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 452     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 453     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 454 bhnd_nvram_map_data.h:
 455         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 456             ${SYSDIR}/dev/bhnd/nvram/nvram_map -d
 457 .endif
 458
 459 .if !empty(SRCS:Musbdevs.h)
 460 CLEANFILES+=    usbdevs.h
 461 usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 462         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
 463 .endif
 464
 465 .if !empty(SRCS:Musbdevs_data.h)
 466 CLEANFILES+=    usbdevs_data.h
 467 usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 468         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
 469 .endif
 470
 471 .if !empty(SRCS:Msdiodevs.h)
 472 CLEANFILES+=    sdiodevs.h
 473 sdiodevs.h: ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs
 474         ${AWK} -f ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs -h
 475 .endif
 476
 477 .if !empty(SRCS:Msdiodevs_data.h)
 478 CLEANFILES+=    sdiodevs_data.h
 479 sdiodevs_data.h: ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs
 480         ${AWK} -f ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs -d
 481 .endif
 482
 483 .if !empty(SRCS:Macpi_quirks.h)
 484 CLEANFILES+=    acpi_quirks.h
 485 acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 486         ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 487 .endif
 488
 489 .if !empty(SRCS:Massym.inc) || !empty(DPSRCS:Massym.inc)
 490 CLEANFILES+=    assym.inc genassym.o
 491 DEPENDOBJS+=    genassym.o
 492 DPSRCS+=        offset.inc
 493 .endif
 494 .if defined(MODULE_TIED)
 495 DPSRCS+=        offset.inc
 496 .endif
 497 .if !empty(SRCS:Moffset.inc) || !empty(DPSRCS:Moffset.inc)
 498 CLEANFILES+=    offset.inc genoffset.o
 499 DEPENDOBJS+=    genoffset.o
 500 .endif
 501 assym.inc: genassym.o
 502 offset.inc: genoffset.o
 503 assym.inc: ${SYSDIR}/kern/genassym.sh
 504         sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
 505 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc
 506 genassym.o: ${SRCS:Mopt_*.h}
 507         ${CC} -c ${CFLAGS:N-flto:N-fno-common} \
 508             ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
 509 offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o
 510         sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET}
 511 genoffset.o: ${SYSDIR}/kern/genoffset.c
 512 genoffset.o: ${SRCS:Mopt_*.h}
 513         ${CC} -c ${CFLAGS:N-flto:N-fno-common} \
 514             ${SYSDIR}/kern/genoffset.c
 515
 516 CLEANDEPENDFILES+=      ${_ILINKS}
 517 # .depend needs include links so we remove them only together.
 518 cleanilinks:
 519         rm -f ${_ILINKS}
 520
 521 OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 522 .if defined(KERNBUILDDIR)
 523 OBJS_DEPEND_GUESS+= opt_global.h
 524 .endif
 525
 526 .include <bsd.dep.mk>
 527 .include <bsd.clang-analyze.mk>
 528 .include <bsd.obj.mk>
 529 .include "kern.mk"