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
  78 # Search for kernel source tree in standard places.
  79 .if empty(KERNBUILDDIR)
  80 .if !defined(SYSDIR)
  81 .for _dir in ${SRCTOP:D${SRCTOP}/sys} \
  82     ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
  83 .if !defined(SYSDIR) && exists(${_dir}/kern/)
  84 SYSDIR= ${_dir:tA}
  85 .endif
  86 .endfor
  87 .endif
  88 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
  89 .error "can't find kernel source tree"
  90 .endif
  91 .endif
  92
  93 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
  94
  95 # amd64 and mips use direct linking for kmod, all others use shared binaries
  96 .if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
  97 __KLD_SHARED=yes
  98 .else
  99 __KLD_SHARED=no
 100 .endif
 101
 102 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
 103 CFLAGS+=        -fno-strict-aliasing
 104 .endif
 105 .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000
 106 WERROR?=        -Wno-error
 107 .else
 108 WERROR?=        -Werror
 109 .endif
 110
 111 LINUXKPI_GENSRCS+= \
 112         bus_if.h \
 113         device_if.h \
 114         pci_if.h \
 115         pci_iov_if.h \
 116         pcib_if.h \
 117         vnode_if.h \
 118         usb_if.h \
 119         opt_usb.h \
 120         opt_stack.h
 121
 122 CFLAGS+=        ${WERROR}
 123 CFLAGS+=        -D_KERNEL
 124 CFLAGS+=        -DKLD_MODULE
 125 .if defined(MODULE_TIED)
 126 CFLAGS+=        -DKLD_TIED
 127 .endif
 128
 129 # Don't use any standard or source-relative include directories.
 130 NOSTDINC=       -nostdinc
 131 CFLAGS:=        ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
 132 .if defined(KERNBUILDDIR)
 133 CFLAGS+=        -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
 134 .endif
 135
 136 # Add -I paths for system headers.  Individual module makefiles don't
 137 # need any -I paths for this.  Similar defaults for .PATH can't be
 138 # set because there are no standard paths for non-headers.
 139 CFLAGS+=        -I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
 140
 141 CFLAGS.gcc+=    -finline-limit=${INLINE_LIMIT}
 142 CFLAGS.gcc+=    -fms-extensions
 143 CFLAGS.gcc+= --param inline-unit-growth=100
 144 CFLAGS.gcc+= --param large-function-growth=1000
 145
 146 # Disallow common variables, and if we end up with commons from
 147 # somewhere unexpected, allocate storage for them in the module itself.
 148 #
 149 # -fno-common is the default for src builds, but this should be left in place
 150 # until at least we catch up to GCC10/LLVM11 or otherwise enable -fno-common
 151 # in <bsd.sys.mk> instead.  For now, we will have duplicate -fno-common in
 152 # CFLAGS for in-tree module builds as they will also pick it up from
 153 # share/mk/src.sys.mk, but the following is important for out-of-tree modules
 154 # (e.g. ports).
 155 CFLAGS+=        -fno-common
 156 LDFLAGS+=       -d -warn-common
 157
 158 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 159 LDFLAGS+=       --build-id=sha1
 160 .endif
 161
 162 CFLAGS+=        ${DEBUG_FLAGS}
 163 .if ${MACHINE_CPUARCH} == amd64
 164 CFLAGS+=        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 165 .endif
 166
 167 .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
 168 CFLAGS+=        -fPIC
 169 .endif
 170
 171 # Temporary workaround for PR 196407, which contains the fascinating details.
 172 # Don't allow clang to use fpu instructions or registers in kernel modules.
 173 .if ${MACHINE_CPUARCH} == arm
 174 .if ${COMPILER_VERSION} < 30800
 175 CFLAGS.clang+=  -mllvm -arm-use-movt=0
 176 .else
 177 CFLAGS.clang+=  -mno-movt
 178 .endif
 179 CFLAGS.clang+=  -mfpu=none
 180 CFLAGS+=        -funwind-tables
 181 .endif
 182
 183 .if ${MACHINE_CPUARCH} == powerpc
 184 CFLAGS+=        -mlongcall -fno-omit-frame-pointer
 185 .endif
 186
 187 .if ${MACHINE_CPUARCH} == mips
 188 CFLAGS+=        -G0 -fno-pic -mno-abicalls -mlong-calls
 189 .endif
 190
 191 .if defined(DEBUG) || defined(DEBUG_FLAGS)
 192 CTFFLAGS+=      -g
 193 .endif
 194
 195 .if defined(FIRMWS)
 196 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
 197         ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 198             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 199
 200 SRCS+=  ${KMOD:S/$/.c/}
 201 CLEANFILES+=    ${KMOD:S/$/.c/}
 202
 203 .for _firmw in ${FIRMWS}
 204 ${_firmw:C/\:.*$/.fwo/:T}:      ${_firmw:C/\:.*$//}
 205         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 206         @if [ -e ${_firmw:C/\:.*$//} ]; then                    \
 207                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 208                     -m ${LD_EMULATION} -r -d                    \
 209                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 210         else                                                    \
 211                 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 212                 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS}  \
 213                     -m ${LD_EMULATION} -r -d                    \
 214                     -o ${.TARGET} ${_firmw:C/\:.*$//};          \
 215                 rm ${_firmw:C/\:.*$//};                         \
 216         fi
 217
 218 OBJS+=  ${_firmw:C/\:.*$/.fwo/:T}
 219 .endfor
 220 .endif
 221
 222 # Conditionally include SRCS based on kernel config options.
 223 .for _o in ${KERN_OPTS}
 224 SRCS+=${SRCS.${_o}}
 225 .endfor
 226
 227 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 228
 229 .if !defined(PROG)
 230 PROG=   ${KMOD}.ko
 231 .endif
 232
 233 .if !defined(DEBUG_FLAGS)
 234 FULLPROG=       ${PROG}
 235 .else
 236 FULLPROG=       ${PROG}.full
 237 ${PROG}: ${FULLPROG} ${PROG}.debug
 238         ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
 239             ${FULLPROG} ${.TARGET}
 240 ${PROG}.debug: ${FULLPROG}
 241         ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
 242 .endif
 243
 244 .if ${__KLD_SHARED} == yes
 245 ${FULLPROG}: ${KMOD}.kld
 246         ${LD} -m ${LD_EMULATION} -Bshareable -znotext -znorelro ${_LDFLAGS} \
 247             -o ${.TARGET} ${KMOD}.kld
 248 .if !defined(DEBUG_FLAGS)
 249         ${OBJCOPY} --strip-debug ${.TARGET}
 250 .endif
 251 .endif
 252
 253 EXPORT_SYMS?=   NO
 254 .if ${EXPORT_SYMS} != YES
 255 CLEANFILES+=    export_syms
 256 .endif
 257
 258 .if ${__KLD_SHARED} == yes
 259 ${KMOD}.kld: ${OBJS}
 260 .else
 261 ${FULLPROG}: ${OBJS}
 262 .endif
 263         ${LD} -m ${LD_EMULATION} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 264 .if ${MK_CTF} != "no"
 265         ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
 266 .endif
 267 .if defined(EXPORT_SYMS)
 268 .if ${EXPORT_SYMS} != YES
 269 .if ${EXPORT_SYMS} == NO
 270         :> export_syms
 271 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
 272         echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
 273 .else
 274         grep -v '^#' < ${EXPORT_SYMS} > export_syms
 275 .endif
 276         ${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
 277             export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
 278 .endif
 279 .endif # defined(EXPORT_SYMS)
 280 .if defined(PREFIX_SYMS)
 281         ${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
 282             ${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
 283 .endif
 284 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
 285         ${OBJCOPY} --strip-debug ${.TARGET}
 286 .endif
 287
 288 .if ${COMPILER_TYPE} == "clang" || \
 289     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 290 _MAP_DEBUG_PREFIX= yes
 291 .endif
 292
 293 _ILINKS=machine
 294 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
 295 _ILINKS+=${MACHINE_CPUARCH}
 296 .endif
 297 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 298 _ILINKS+=x86
 299 .endif
 300 CLEANFILES+=${_ILINKS}
 301
 302 all: ${PROG}
 303
 304 beforedepend: ${_ILINKS}
 305 beforebuild: ${_ILINKS}
 306
 307 # Ensure that the links exist without depending on it when it exists which
 308 # causes all the modules to be rebuilt when the directory pointed to changes.
 309 # Ensure that debug info references the path in the source tree.
 310 .for _link in ${_ILINKS}
 311 .if !exists(${.OBJDIR}/${_link})
 312 OBJS_DEPEND_GUESS+=     ${_link}
 313 .endif
 314 .if defined(_MAP_DEBUG_PREFIX)
 315 .if ${_link} == "machine"
 316 CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include
 317 .else
 318 CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include
 319 .endif
 320 .endif
 321 .endfor
 322
 323 .NOPATH: ${_ILINKS}
 324
 325 ${_ILINKS}:
 326         @case ${.TARGET} in \
 327         machine) \
 328                 path=${SYSDIR}/${MACHINE}/include ;; \
 329         *) \
 330                 path=${SYSDIR}/${.TARGET:T}/include ;; \
 331         esac ; \
 332         path=`(cd $$path && /bin/pwd)` ; \
 333         ${ECHO} ${.TARGET:T} "->" $$path ; \
 334         ln -fns $$path ${.TARGET:T}
 335
 336 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
 337
 338 .if defined(DEBUG_FLAGS)
 339 CLEANFILES+= ${FULLPROG} ${PROG}.debug
 340 .endif
 341
 342 .if !target(install)
 343
 344 _INSTALLFLAGS:= ${INSTALLFLAGS}
 345 .for ie in ${INSTALLFLAGS_EDIT}
 346 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 347 .endfor
 348
 349 .if !target(realinstall)
 350 KERN_DEBUGDIR?= ${DEBUGDIR}
 351 realinstall: _kmodinstall
 352 .ORDER: beforeinstall _kmodinstall
 353 _kmodinstall: .PHONY
 354         ${INSTALL} -T release -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 355             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
 356 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 357         ${INSTALL} -T debug -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 358             ${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}/
 359 .endif
 360
 361 .include <bsd.links.mk>
 362
 363 .if !defined(NO_XREF)
 364 afterinstall: _kldxref
 365 .ORDER: realinstall _kldxref
 366 .ORDER: _installlinks _kldxref
 367 _kldxref: .PHONY
 368         @if type kldxref >/dev/null 2>&1; then \
 369                 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
 370                 kldxref ${DESTDIR}${KMODDIR}; \
 371         fi
 372 .endif
 373 .endif # !target(realinstall)
 374
 375 .endif # !target(install)
 376
 377 .if !target(load)
 378 load: ${PROG} .PHONY
 379         ${KMODLOAD} -v ${.OBJDIR}/${PROG}
 380 .endif
 381
 382 .if !target(unload)
 383 unload: .PHONY
 384         if ${KMODISLOADED} ${PROG} ; then ${KMODUNLOAD} -v ${PROG} ; fi
 385 .endif
 386
 387 .if !target(reload)
 388 reload: unload load .PHONY
 389 .endif
 390
 391 .if defined(KERNBUILDDIR)
 392 .PATH: ${KERNBUILDDIR}
 393 CFLAGS+=        -I${KERNBUILDDIR}
 394 .for _src in ${SRCS:Mopt_*.h}
 395 CLEANFILES+=    ${_src}
 396 .if !target(${_src})
 397 ${_src}:
 398         ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
 399 .endif
 400 .endfor
 401 .else
 402 .for _src in ${SRCS:Mopt_*.h}
 403 CLEANFILES+=    ${_src}
 404 .if !target(${_src})
 405 ${_src}:
 406         :> ${.TARGET}
 407 .endif
 408 .endfor
 409 .endif
 410
 411 # Respect configuration-specific C flags.
 412 CFLAGS+=        ${ARCH_FLAGS} ${CONF_CFLAGS}
 413
 414 .if !empty(SRCS:Mvnode_if.c)
 415 CLEANFILES+=    vnode_if.c
 416 vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
 417         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
 418 .endif
 419
 420 .if !empty(SRCS:Mvnode_if.h)
 421 CLEANFILES+=    vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
 422 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
 423     ${SYSDIR}/kern/vnode_if.src
 424 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
 425         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
 426 vnode_if_newproto.h:
 427         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
 428 vnode_if_typedef.h:
 429         ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
 430 .endif
 431
 432 # Build _if.[ch] from _if.m, and clean them when we're done.
 433 # __MPATH defined in config.mk
 434 _MFILES=${__MPATH:T:O}
 435 _MPATH=${__MPATH:H:O:u}
 436 .PATH.m: ${_MPATH}
 437 .for _i in ${SRCS:M*_if.[ch]}
 438 _MATCH=M${_i:R:S/$/.m/}
 439 _MATCHES=${_MFILES:${_MATCH}}
 440 .if !empty(_MATCHES)
 441 CLEANFILES+=    ${_i}
 442 .endif
 443 .endfor # _i
 444 .m.c:   ${SYSDIR}/tools/makeobjops.awk
 445         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
 446
 447 .m.h:   ${SYSDIR}/tools/makeobjops.awk
 448         ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
 449
 450 .for _i in mii pccard
 451 .if !empty(SRCS:M${_i}devs.h)
 452 CLEANFILES+=    ${_i}devs.h
 453 ${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 454         ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 455 .endif
 456 .endfor # _i
 457
 458 .if !empty(SRCS:Mbhnd_nvram_map.h)
 459 CLEANFILES+=    bhnd_nvram_map.h
 460 bhnd_nvram_map.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 461     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 462     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 463 bhnd_nvram_map.h:
 464         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 465             ${SYSDIR}/dev/bhnd/nvram/nvram_map -h
 466 .endif
 467
 468 .if !empty(SRCS:Mbhnd_nvram_map_data.h)
 469 CLEANFILES+=    bhnd_nvram_map_data.h
 470 bhnd_nvram_map_data.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
 471     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 472     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 473 bhnd_nvram_map_data.h:
 474         sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 475             ${SYSDIR}/dev/bhnd/nvram/nvram_map -d
 476 .endif
 477
 478 .if !empty(SRCS:Musbdevs.h)
 479 CLEANFILES+=    usbdevs.h
 480 usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 481         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
 482 .endif
 483
 484 .if !empty(SRCS:Musbdevs_data.h)
 485 CLEANFILES+=    usbdevs_data.h
 486 usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 487         ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
 488 .endif
 489
 490 .if !empty(SRCS:Macpi_quirks.h)
 491 CLEANFILES+=    acpi_quirks.h
 492 acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 493         ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 494 .endif
 495
 496 .if !empty(SRCS:Massym.inc) || !empty(DPSRCS:Massym.inc)
 497 CLEANFILES+=    assym.inc genassym.o
 498 DEPENDOBJS+=    genassym.o
 499 DPSRCS+=        offset.inc
 500 .endif
 501 .if defined(MODULE_TIED)
 502 DPSRCS+=        offset.inc
 503 .endif
 504 .if !empty(SRCS:Moffset.inc) || !empty(DPSRCS:Moffset.inc)
 505 CLEANFILES+=    offset.inc genoffset.o
 506 DEPENDOBJS+=    genoffset.o
 507 .endif
 508 assym.inc: genassym.o
 509 offset.inc: genoffset.o
 510 assym.inc: ${SYSDIR}/kern/genassym.sh
 511         sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
 512 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc
 513 genassym.o: ${SRCS:Mopt_*.h}
 514         ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon \
 515             ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
 516 offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o
 517         sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET}
 518 genoffset.o: ${SYSDIR}/kern/genoffset.c
 519 genoffset.o: ${SRCS:Mopt_*.h}
 520         ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon \
 521             ${SYSDIR}/kern/genoffset.c
 522
 523 CLEANDEPENDFILES+=      ${_ILINKS}
 524 # .depend needs include links so we remove them only together.
 525 cleanilinks:
 526         rm -f ${_ILINKS}
 527
 528 OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 529 .if defined(KERNBUILDDIR)
 530 OBJS_DEPEND_GUESS+= opt_global.h
 531 .endif
 532
 533 .include <bsd.dep.mk>
 534 .include <bsd.clang-analyze.mk>
 535 .include <bsd.obj.mk>
 536 .include "kern.mk"