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  Set to the location of the kernel build directory where
  48 #               the opt_*.h files, .o's and kernel winds up.
  49 #
  50 # BLOB_OBJS     Prebuilt binary blobs .o's from the src tree to be linked into
  51 #               the module. These are precious and not removed in make clean.
  52 #
  53 # +++ targets +++
  54 #
  55 #       install:
  56 #               install the kernel module; if the Makefile
  57 #               does not itself define the target install, the targets
  58 #               beforeinstall and afterinstall may also be used to cause
  59 #               actions immediately before and after the install target
  60 #               is executed.
  61 #
  62 #       load:
  63 #               Load a module.
  64 #
  65 #       unload:
  66 #               Unload a module.
  67 #
  68 #       reload:
  69 #               Unload if loaded, then load.
  70 #
  71
  72 AWK?=           awk
  73 KMODLOAD?=      /sbin/kldload
  74 KMODUNLOAD?=    /sbin/kldunload
  75 KMODISLOADED?=  /sbin/kldstat -q -n
  76 OBJCOPY?=       objcopy
  77
  78 .include "kmod.opts.mk"
  79 .include <bsd.sysdir.mk>
  80
  81 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
  82
  83 # amd64 and mips use direct linking for kmod, all others use shared binaries
  84 .if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
  85 __KLD_SHARED=yes
  86 .else
  87 __KLD_SHARED=no
  88 .endif
  89
  90 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
  91 CFLAGS+=        -fno-strict-aliasing
  92 .endif
  93 WERROR?=        -Werror
  94
  95 LINUXKPI_GENSRCS+= \
  96         backlight_if.h \
  97         bus_if.h \
  98         device_if.h \
  99         pci_if.h \
 100         pci_iov_if.h \
 101         pcib_if.h \
 102         vnode_if.h \
 103         usb_if.h \
 104         opt_usb.h \
 105         opt_stack.h
 106
 107 CFLAGS+=        ${WERROR}
 108 CFLAGS+=        -D_KERNEL
 109 CFLAGS+=        -DKLD_MODULE
 110 .if defined(MODULE_TIED)
 111 CFLAGS+=        -DKLD_TIED
 112 .endif
 113
 114 # Don't use any standard or source-relative include directories.
 115 NOSTDINC=       -nostdinc
 116 CFLAGS:=        ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
 117 .if defined(KERNBUILDDIR)
 118 CFLAGS+=        -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
 119 .else
 120 SRCS+=          opt_global.h
 121 CFLAGS+=        -include ${.OBJDIR}/opt_global.h
 122 .endif
 123
 124 # Add -I paths for system headers.  Individual module makefiles don't
 125 # need any -I paths for this.  Similar defaults for .PATH can't be
 126 # set because there are no standard paths for non-headers.
 127 CFLAGS+=        -I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
 128
 129 CFLAGS.gcc+=    -finline-limit=${INLINE_LIMIT}
 130 CFLAGS.gcc+=    -fms-extensions
 131 CFLAGS.gcc+= --param inline-unit-growth=100
 132 CFLAGS.gcc+= --param large-function-growth=1000
 133
 134 # Disallow common variables, and if we end up with commons from
 135 # somewhere unexpected, allocate storage for them in the module itself.
 136 #
 137 # -fno-common is the default for src builds, but this should be left in place
 138 # until at least we catch up to GCC10/LLVM11 or otherwise enable -fno-common
 139 # in <bsd.sys.mk> instead.  For now, we will have duplicate -fno-common in
 140 # CFLAGS for in-tree module builds as they will also pick it up from
 141 # share/mk/src.sys.mk, but the following is important for out-of-tree modules
 142 # (e.g. ports).
 143 CFLAGS+=        -fno-common
 144 LDFLAGS+=       -d -warn-common
 145
 146 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 147 LDFLAGS+=       --build-id=sha1
 148 .endif
 149
 150 CFLAGS+=        ${DEBUG_FLAGS}
 151 .if ${MACHINE_CPUARCH} == aarch64 || ${MACHINE_CPUARCH} == amd64
 152 CFLAGS+=        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 153 .endif
 154
 155 .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv" || \
 156     ${MACHINE_CPUARCH} == "powerpc"
 157 CFLAGS+=        -fPIC
 158 .endif
 159
 160 # Temporary workaround for PR 196407, which contains the fascinating details.
 161 # Don't allow clang to use fpu instructions or registers in kernel modules.
 162 .if ${MACHINE_CPUARCH} == arm
 163 CFLAGS.clang+=  -mno-movt
 164 CFLAGS.clang+=  -mfpu=none
 165 CFLAGS+=        -funwind-tables
 166 .endif
 167
 168 .if ${MACHINE_CPUARCH} == powerpc
 169 CFLAGS+=        -mlongcall -fno-omit-frame-pointer
 170 .if ${LINKER_TYPE} == "lld"
 171 # TOC optimization in LLD (9.0) currently breaks kernel modules, so disable it
 172 LDFLAGS+=       --no-toc-optimize
 173 .endif
 174 .endif
 175
 176 .if ${MACHINE_CPUARCH} == mips
 177 CFLAGS+=        -G0 -fno-pic -mno-abicalls -mlong-calls
 178 .endif
 179
 180 .if defined(DEBUG) || defined(DEBUG_FLAGS)
 181 CTFFLAGS+=      -g
 182 .endif
 183
 184 .if defined(FIRMWS)
 185 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
 186         ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 187             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 188
 189 SRCS+=  ${KMOD:S/$/.c/}
 190 CLEANFILES+=    ${KMOD:S/$/.c/}
 191
 192 .for _firmw in ${FIRMWS}
 193 ${_firmw:C/\:.*$/.fwo/:T}:      ${_firmw:C/\:.*$//} ${SYSDIR}/kern/firmw.S
 194         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 195         ${CC:N${CCACHE_BIN}} -c -x assembler-with-cpp -DLOCORE  \
 196             ${CFLAGS} ${WERROR}                                 \
 197             -DFIRMW_FILE="${.ALLSRC:M*${_firmw:C/\:.*$//}}"     \
 198             -DFIRMW_SYMBOL="${_firmw:C/\:.*$//:C/[-.\/]/_/g}"   \
 199             ${SYSDIR}/kern/firmw.S -o ${.TARGET}
 200
 201 OBJS+=  ${_firmw:C/\:.*$/.fwo/:T}
 202 .endfor
 203 .endif
 204
 205 # Conditionally include SRCS based on kernel config options.
 206 .for _o in ${KERN_OPTS}
 207 SRCS+=${SRCS.${_o}}
 208 .endfor
 209
 210 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 211
 212 .if !defined(PROG)
 213 PROG=   ${KMOD}.ko
 214 .endif
 215
 216 .if !defined(DEBUG_FLAGS) || ${MK_KERNEL_SYMBOLS} == "no"
 217 FULLPROG=       ${PROG}
 218 .else
 219 FULLPROG=       ${PROG}.full
 220 ${PROG}: ${FULLPROG} ${PROG}.debug
 221         ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
 222             ${FULLPROG} ${.TARGET}
 223 ${PROG}.debug: ${FULLPROG}
 224         ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
 225 .endif
 226
 227 .if ${__KLD_SHARED} == yes
 228 ${FULLPROG}: ${KMOD}.kld
 229         ${LD} -m ${LD_EMULATION} -Bshareable -znotext -znorelro ${_LDFLAGS} \
 230             -o ${.TARGET} ${KMOD}.kld
 231 .if !defined(DEBUG_FLAGS)
 232         ${OBJCOPY} --strip-debug ${.TARGET}
 233 .endif
 234 .endif
 235
 236 EXPORT_SYMS?=   NO
 237 .if ${EXPORT_SYMS} != YES
 238 CLEANFILES+=    export_syms
 239 .endif
 240
 241 .if exists(${SYSDIR}/conf/ldscript.kmod.${MACHINE_ARCH})
 242 LDSCRIPT_FLAGS?= -T ${SYSDIR}/conf/ldscript.kmod.${MACHINE_ARCH}
 243 .endif
 244
 245 .if ${__KLD_SHARED} == yes
 246 ${KMOD}.kld: ${OBJS} ${BLOB_OBJS}
 247 .else
 248 ${FULLPROG}: ${OBJS} ${BLOB_OBJS}
 249 .endif
 250         ${LD} -m ${LD_EMULATION} ${_LDFLAGS} ${LDSCRIPT_FLAGS} -r -d \
 251             -o ${.TARGET} ${OBJS} ${BLOB_OBJS}
 252 .if ${MK_CTF} != "no"
 253         ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} ${BLOB_OBJS}
 254 .endif
 255 .if defined(EXPORT_SYMS)
 256 .if ${EXPORT_SYMS} != YES
 257 .if ${EXPORT_SYMS} == NO
 258         :> export_syms
 259 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
 260         echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
 261 .else
 262         grep -v '^#' < ${EXPORT_SYMS} > export_syms
 263 .endif
 264         ${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
 265             export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
 266 .endif
 267 .endif # defined(EXPORT_SYMS)
 268 .if defined(PREFIX_SYMS)
 269         ${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
 270             ${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
 271 .endif
 272 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
 273         ${OBJCOPY} --strip-debug ${.TARGET}
 274 .endif
 275
 276 _MAP_DEBUG_PREFIX= yes
 277
 278 _ILINKS=machine
 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=`realpath $$path`; \
 315         ${ECHO} ${.TARGET:T} "->" $$path ; \
 316         ln -fns $$path ${.TARGET:T}
 317
 318 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
 319
 320 .if defined(DEBUG_FLAGS) && ${MK_KERNEL_SYMBOLS} != "no"
 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 dbg -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_CMD} ${DESTDIR}${KMODDIR}; \
 352                 ${KLDXREF_CMD} ${DESTDIR}${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:Msdiodevs.h)
 479 CLEANFILES+=    sdiodevs.h
 480 sdiodevs.h: ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs
 481         ${AWK} -f ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs -h
 482 .endif
 483
 484 .if !empty(SRCS:Msdiodevs_data.h)
 485 CLEANFILES+=    sdiodevs_data.h
 486 sdiodevs_data.h: ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs
 487         ${AWK} -f ${SYSDIR}/tools/sdiodevs2h.awk ${SYSDIR}/dev/sdio/sdiodevs -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+= ${SRCS:M*.h}
 529 .if defined(KERNBUILDDIR)
 530 OBJS_DEPEND_GUESS+= opt_global.h
 531 .endif
 532
 533 ZINCDIR=${SYSDIR}/contrib/openzfs/include
 534 OPENZFS_CFLAGS=     \
 535         -D_SYS_VMEM_H_  \
 536         -D__KERNEL__ \
 537         -nostdinc \
 538         -DSMP \
 539         -I${ZINCDIR}  \
 540         -I${ZINCDIR}/os/freebsd \
 541         -I${ZINCDIR}/os/freebsd/spl \
 542         -I${ZINCDIR}/os/freebsd/zfs \
 543         -I${SYSDIR}/cddl/compat/opensolaris \
 544         -I${SYSDIR}/cddl/contrib/opensolaris/uts/common \
 545         -include ${ZINCDIR}/os/freebsd/spl/sys/ccompile.h
 546 OPENZFS_CWARNFLAGS= \
 547         -Wno-nested-externs \
 548         -Wno-redundant-decls
 549
 550 .include <bsd.dep.mk>
 551 .include <bsd.clang-analyze.mk>
 552 .include <bsd.obj.mk>
 553 .include "kern.mk"