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