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 .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000
 111 WERROR?=        -Wno-error
 112 .else
 113 WERROR?=        -Werror
 114 .endif
 115
 116 LINUXKPI_GENSRCS+= \
 117         bus_if.h \
 118         device_if.h \
 119         pci_if.h \
 120         pci_iov_if.h \
 121         vnode_if.h \
 122         usb_if.h \
 123         opt_usb.h \
 124         opt_stack.h
 125
 126 CFLAGS+=        ${WERROR}
 127 CFLAGS+=        -D_KERNEL
 128 CFLAGS+=        -DKLD_MODULE
 129 .if defined(MODULE_TIED)
 130 CFLAGS+=        -DKLD_TIED
 131 .endif
 132
 133 # Don't use any standard or source-relative include directories.
 134 NOSTDINC=       -nostdinc
 135 CFLAGS:=        ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
 136 .if defined(KERNBUILDDIR)
 137 CFLAGS+=        -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
 138 .endif
 139
 140 # Add -I paths for system headers.  Individual module makefiles don't
 141 # need any -I paths for this.  Similar defaults for .PATH can't be
 142 # set because there are no standard paths for non-headers.
 143 CFLAGS+=        -I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
 144
 145 CFLAGS.gcc+=    -finline-limit=${INLINE_LIMIT}
 146 CFLAGS.gcc+=    -fms-extensions
 147 CFLAGS.gcc+= --param inline-unit-growth=100
 148 CFLAGS.gcc+= --param large-function-growth=1000
 149
 150 # Disallow common variables, and if we end up with commons from
 151 # somewhere unexpected, allocate storage for them in the module itself.
 152 #
 153 # -fno-common is the default for src builds, but this should be left in place
 154 # until at least we catch up to GCC10/LLVM11 or otherwise enable -fno-common
 155 # in <bsd.sys.mk> instead.  For now, we will have duplicate -fno-common in
 156 # CFLAGS for in-tree module builds as they will also pick it up from
 157 # share/mk/src.sys.mk, but the following is important for out-of-tree modules
 158 # (e.g. ports).
 159 CFLAGS+=        -fno-common
 160 LDFLAGS+=       -d -warn-common
 161
 162 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 163 LDFLAGS+=       --build-id=sha1
 164 .endif
 165
 166 CFLAGS+=        ${DEBUG_FLAGS}
 167 .if ${MACHINE_CPUARCH} == amd64
 168 CFLAGS+=        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 169 .endif
 170
 171 .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
 172 CFLAGS+=        -fPIC
 173 .endif
 174
 175 # Temporary workaround for PR 196407, which contains the fascinating details.
 176 # Don't allow clang to use fpu instructions or registers in kernel modules.
 177 .if ${MACHINE_CPUARCH} == arm
 178 .if ${COMPILER_VERSION} < 30800
 179 CFLAGS.clang+=  -mllvm -arm-use-movt=0
 180 .else
 181 CFLAGS.clang+=  -mno-movt
 182 .endif
 183 CFLAGS.clang+=  -mfpu=none
 184 CFLAGS+=        -funwind-tables
 185 .endif
 186
 187 .if ${MACHINE_CPUARCH} == powerpc
 188 CFLAGS+=        -mlongcall -fno-omit-frame-pointer
 189 .endif
 190
 191 .if ${MACHINE_CPUARCH} == mips
 192 CFLAGS+=        -G0 -fno-pic -mno-abicalls -mlong-calls
 193 .endif
 194
 195 .if defined(DEBUG) || defined(DEBUG_FLAGS)
 196 CTFFLAGS+=      -g
 197 .endif
 198
 199 .if defined(FIRMWS)
 200 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
 201         ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 202             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 203
 204 SRCS+=  ${KMOD:S/$/.c/}
 205 CLEANFILES+=    ${KMOD:S/$/.c/}
 206
 207 .for _firmw in ${FIRMWS}
 208 ${_firmw:C/\:.*$/.fwo/:T}:      ${_firmw:C/\:.*$//}
 209         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 210         @if [ -e ${_firmw:C/\:.*$//} ]; then                    \
 211                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 212                     -m ${LD_EMULATION} -r -d                    \
 213                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 214         else                                                    \
 215                 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 216                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 217                     -m ${LD_EMULATION} -r -d                    \
 218                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 219                 rm ${_firmw:C/\:.*$//};                         \
 220         fi
 221
 222 OBJS+=  ${_firmw:C/\:.*$/.fwo/:T}
 223 .endfor
 224 .endif
 225
 226 # Conditionally include SRCS based on kernel config options.
 227 .for _o in ${KERN_OPTS}
 228 SRCS+=${SRCS.${_o}}
 229 .endfor
 230
 231 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 232
 233 .if !defined(PROG)
 234 PROG=   ${KMOD}.ko
 235 .endif
 236
 237 .if !defined(DEBUG_FLAGS)
 238 FULLPROG=       ${PROG}
 239 .else
 240 FULLPROG=       ${PROG}.full
 241 ${PROG}: ${FULLPROG} ${PROG}.debug
 242         ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
 243             ${FULLPROG} ${.TARGET}
 244 ${PROG}.debug: ${FULLPROG}
 245         ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
 246 .endif
 247
 248 .if ${__KLD_SHARED} == yes
 249 ${FULLPROG}: ${KMOD}.kld
 250         ${LD} -m ${LD_EMULATION} -Bshareable -znotext -znorelro ${_LDFLAGS} \
 251             -o ${.TARGET} ${KMOD}.kld
 252 .if !defined(DEBUG_FLAGS)
 253         ${OBJCOPY} --strip-debug ${.TARGET}
 254 .endif
 255 .endif
 256
 257 EXPORT_SYMS?=   NO
 258 .if ${EXPORT_SYMS} != YES
 259 CLEANFILES+=    export_syms
 260 .endif
 261
 262 .if ${__KLD_SHARED} == yes
 263 ${KMOD}.kld: ${OBJS}
 264 .else
 265 ${FULLPROG}: ${OBJS}
 266 .endif
 267         ${LD} -m ${LD_EMULATION} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 268 .if ${MK_CTF} != "no"
 269         ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
 270 .endif
 271 .if defined(EXPORT_SYMS)
 272 .if ${EXPORT_SYMS} != YES
 273 .if ${EXPORT_SYMS} == NO
 274         :> export_syms
 275 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
 276         echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
 277 .else
 278         grep -v '^#' < ${EXPORT_SYMS} > export_syms
 279 .endif
 280         ${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
 281             export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
 282 .endif
 283 .endif # defined(EXPORT_SYMS)
 284 .if defined(PREFIX_SYMS)
 285         ${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
 286             ${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
 287 .endif
 288 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
 289         ${OBJCOPY} --strip-debug ${.TARGET}
 290 .endif
 291
 292 .if ${COMPILER_TYPE} == "clang" || \
 293     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 294 _MAP_DEBUG_PREFIX= yes
 295 .endif
 296
 297 _ILINKS=machine
 298 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
 299 _ILINKS+=${MACHINE_CPUARCH}
 300 .endif
 301 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 302 _ILINKS+=x86
 303 .endif
 304 CLEANFILES+=${_ILINKS}
 305
 306 all: ${PROG}
 307
 308 beforedepend: ${_ILINKS}
 309 beforebuild: ${_ILINKS}
 310
 311 # Ensure that the links exist without depending on it when it exists which
 312 # causes all the modules to be rebuilt when the directory pointed to changes.
 313 # Ensure that debug info references the path in the source tree.
 314 .for _link in ${_ILINKS}
 315 .if !exists(${.OBJDIR}/${_link})
 316 OBJS_DEPEND_GUESS+=     ${_link}
 317 .endif
 318 .if defined(_MAP_DEBUG_PREFIX)
 319 .if ${_link} == "machine"
 320 CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include
 321 .else
 322 CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include
 323 .endif
 324 .endif
 325 .endfor
 326
 327 .NOPATH: ${_ILINKS}
 328
 329 ${_ILINKS}:
 330         @case ${.TARGET} in \
 331         machine) \
 332                 path=${SYSDIR}/${MACHINE}/include ;; \
 333         *) \
 334                 path=${SYSDIR}/${.TARGET:T}/include ;; \
 335         esac ; \
 336         path=`(cd $$path && /bin/pwd)` ; \
 337         ${ECHO} ${.TARGET:T} "->" $$path ; \
 338         ln -fns $$path ${.TARGET:T}
 339
 340 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
 341
 342 .if defined(DEBUG_FLAGS)
 343 CLEANFILES+= ${FULLPROG} ${PROG}.debug
 344 .endif
 345
 346 .if !target(install)
 347
 348 _INSTALLFLAGS:= ${INSTALLFLAGS}
 349 .for ie in ${INSTALLFLAGS_EDIT}
 350 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 351 .endfor
 352
 353 .if !target(realinstall)
 354 KERN_DEBUGDIR?= ${DEBUGDIR}
 355 realinstall: _kmodinstall
 356 .ORDER: beforeinstall _kmodinstall
 357 _kmodinstall: .PHONY
 358         ${INSTALL} -T release -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 359             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
 360 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 361         ${INSTALL} -T debug -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 362             ${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}/
 363 .endif
 364
 365 .include <bsd.links.mk>
 366
 367 .if !defined(NO_XREF)
 368 afterinstall: _kldxref
 369 .ORDER: realinstall _kldxref
 370 .ORDER: _installlinks _kldxref
 371 _kldxref: .PHONY
 372         @if type kldxref >/dev/null 2>&1; then \
 373                 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
 374                 kldxref ${DESTDIR}${KMODDIR}; \
 375         fi
 376 .endif
 377 .endif # !target(realinstall)
 378
 379 .endif # !target(install)
 380
 381 .if !target(load)
 382 load: ${PROG} .PHONY
 383         ${KMODLOAD} -v ${.OBJDIR}/${PROG}
 384 .endif
 385
 386 .if !target(unload)
 387 unload: .PHONY
 388         if ${KMODISLOADED} ${PROG} ; then ${KMODUNLOAD} -v ${PROG} ; fi
 389 .endif
 390
 391 .if !target(reload)
 392 reload: unload load .PHONY
 393 .endif
 394
 395 .if defined(KERNBUILDDIR)
 396 .PATH: ${KERNBUILDDIR}
 397 CFLAGS+=        -I${KERNBUILDDIR}
 398 .for _src in ${SRCS:Mopt_*.h}
 399 CLEANFILES+=    ${_src}
 400 .if !target(${_src})
 401 ${_src}:
 402         ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
 403 .endif
 404 .endfor
 405 .else
 406 .for _src in ${SRCS:Mopt_*.h}
 407 CLEANFILES+=    ${_src}
 408 .if !target(${_src})
 409 ${_src}:
 410         :> ${.TARGET}
 411 .endif
 412 .endfor
 413 .endif
 414
 415 # Respect configuration-specific C flags.
 416 CFLAGS+=        ${ARCH_FLAGS} ${CONF_CFLAGS}
 417
 418 .if !empty(SRCS:Mvnode_if.c)
 419 CLEANFILES+=    vnode_if.c
 420 vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
 421         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
 422 .endif
 423
 424 .if !empty(SRCS:Mvnode_if.h)
 425 CLEANFILES+=    vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
 426 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
 427     ${SYSDIR}/kern/vnode_if.src
 428 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
 429         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
 430 vnode_if_newproto.h:
 431         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
 432 vnode_if_typedef.h:
 433         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
 434 .endif
 435
 436 # Build _if.[ch] from _if.m, and clean them when we're done.
 437 # __MPATH defined in config.mk
 438 _MFILES=${__MPATH:T:O}
 439 _MPATH=${__MPATH:H:O:u}
 440 .PATH.m: ${_MPATH}
 441 .for _i in ${SRCS:M*_if.[ch]}
 442 _MATCH=M${_i:R:S/$/.m/}
 443 _MATCHES=${_MFILES:${_MATCH}}
 444 .if !empty(_MATCHES)
 445 CLEANFILES+=    ${_i}
 446 .endif
 447 .endfor # _i
 448 .m.c:   ${SYSDIR}/tools/makeobjops.awk
 449         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
 450
 451 .m.h:   ${SYSDIR}/tools/makeobjops.awk
 452         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
 453
 454 .for _i in mii pccard
 455 .if !empty(SRCS:M${_i}devs.h)
 456 CLEANFILES+=    ${_i}devs.h
 457 ${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 458         ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 459 .endif
 460 .endfor # _i
 461
 462 .if !empty(SRCS:Mbhnd_nvram_map.h)
 463 CLEANFILES+=    bhnd_nvram_map.h
 464 bhnd_nvram_map.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 465     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 466     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 467 bhnd_nvram_map.h:
 468         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 469             ${SYSDIR}/dev/bhnd/nvram/nvram_map -h
 470 .endif
 471
 472 .if !empty(SRCS:Mbhnd_nvram_map_data.h)
 473 CLEANFILES+=    bhnd_nvram_map_data.h
 474 bhnd_nvram_map_data.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 475     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 476     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 477 bhnd_nvram_map_data.h:
 478         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 479             ${SYSDIR}/dev/bhnd/nvram/nvram_map -d
 480 .endif
 481
 482 .if !empty(SRCS:Musbdevs.h)
 483 CLEANFILES+=    usbdevs.h
 484 usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 485         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
 486 .endif
 487
 488 .if !empty(SRCS:Musbdevs_data.h)
 489 CLEANFILES+=    usbdevs_data.h
 490 usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 491         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
 492 .endif
 493
 494 .if !empty(SRCS:Macpi_quirks.h)
 495 CLEANFILES+=    acpi_quirks.h
 496 acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 497         ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 498 .endif
 499
 500 .if !empty(SRCS:Massym.inc) || !empty(DPSRCS:Massym.inc)
 501 CLEANFILES+=    assym.inc genassym.o
 502 DEPENDOBJS+=    genassym.o
 503 DPSRCS+=        offset.inc
 504 .endif
 505 .if defined(MODULE_TIED)
 506 DPSRCS+=        offset.inc
 507 .endif
 508 .if !empty(SRCS:Moffset.inc) || !empty(DPSRCS:Moffset.inc)
 509 CLEANFILES+=    offset.inc genoffset.o
 510 DEPENDOBJS+=    genoffset.o
 511 .endif
 512 assym.inc: genassym.o
 513 offset.inc: genoffset.o
 514 assym.inc: ${SYSDIR}/kern/genassym.sh
 515         sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
 516 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc
 517 genassym.o: ${SRCS:Mopt_*.h}
 518         ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon \
 519             ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
 520 offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o
 521         sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET}
 522 genoffset.o: ${SYSDIR}/kern/genoffset.c
 523 genoffset.o: ${SRCS:Mopt_*.h}
 524         ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon \
 525             ${SYSDIR}/kern/genoffset.c
 526
 527 CLEANDEPENDFILES+=      ${_ILINKS}
 528 # .depend needs include links so we remove them only together.
 529 cleanilinks:
 530         rm -f ${_ILINKS}
 531
 532 OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 533 .if defined(KERNBUILDDIR)
 534 OBJS_DEPEND_GUESS+= opt_global.h
 535 .endif
 536
 537 .include <bsd.dep.mk>
 538 .include <bsd.clang-analyze.mk>
 539 .include <bsd.obj.mk>
 540 .include "kern.mk"