Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/conf/kmod.mk
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1 # From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91 2 # $FreeBSD: releng/8.3/sys/conf/kmod.mk 223601 2011-06-27 18:19:54Z kan $ 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 # MFILES Optionally a list of interfaces used by the module. 32 # This file contains a default list of interfaces. 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 # +++ targets +++ 48 # 49 # install: 50 # install the kernel module; if the Makefile 51 # does not itself define the target install, the targets 52 # beforeinstall and afterinstall may also be used to cause 53 # actions immediately before and after the install target 54 # is executed. 55 # 56 # load: 57 # Load a module. 58 # 59 # unload: 60 # Unload a module. 61 # 62 63 AWK?= awk 64 KMODLOAD?= /sbin/kldload 65 KMODUNLOAD?= /sbin/kldunload 66 OBJCOPY?= objcopy 67 68 .if defined(KMODDEPS) 69 .error "Do not use KMODDEPS on 5.0+; use MODULE_VERSION/MODULE_DEPEND" 70 .endif 71 72 .include <bsd.init.mk> 73 74 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 75 76 .if ${CC} == "icc" 77 CFLAGS:= ${CFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/} 78 .else 79 . if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 80 CFLAGS+= -fno-strict-aliasing 81 . endif 82 WERROR?= -Werror 83 .endif 84 CFLAGS+= ${WERROR} 85 CFLAGS+= -D_KERNEL 86 CFLAGS+= -DKLD_MODULE 87 88 # Don't use any standard or source-relative include directories. 89 .if ${CC} == "icc" 90 NOSTDINC= -X 91 .else 92 CSTD= c99 93 NOSTDINC= -nostdinc 94 .endif 95 CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 96 .if defined(KERNBUILDDIR) 97 CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 98 .endif 99 100 # Add -I paths for system headers. Individual module makefiles don't 101 # need any -I paths for this. Similar defaults for .PATH can't be 102 # set because there are no standard paths for non-headers. 103 CFLAGS+= -I. -I@ 104 105 # Add -I path for altq headers as they are included via net/if_var.h 106 # for example. 107 CFLAGS+= -I@/contrib/altq 108 109 .if ${CC} != "icc" 110 CFLAGS+= -finline-limit=${INLINE_LIMIT} 111 CFLAGS+= --param inline-unit-growth=100 112 CFLAGS+= --param large-function-growth=1000 113 .endif 114 115 # Disallow common variables, and if we end up with commons from 116 # somewhere unexpected, allocate storage for them in the module itself. 117 .if ${CC} != "icc" 118 CFLAGS+= -fno-common 119 .endif 120 LDFLAGS+= -d -warn-common 121 122 CFLAGS+= ${DEBUG_FLAGS} 123 .if ${MACHINE_ARCH} == amd64 124 CFLAGS+= -fno-omit-frame-pointer 125 .endif 126 127 .if ${MACHINE_ARCH} == "powerpc" 128 CFLAGS+= -mlongcall -fno-omit-frame-pointer 129 .endif 130 131 .if ${MACHINE_ARCH} == "mips" 132 CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 133 .endif 134 135 .if defined(DEBUG) || defined(DEBUG_FLAGS) 136 CTFFLAGS+= -g 137 .endif 138 139 .if defined(FIRMWS) 140 .if !exists(@) 141 ${KMOD:S/$/.c/}: @ 142 .else 143 ${KMOD:S/$/.c/}: @/tools/fw_stub.awk 144 .endif 145 ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 146 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 147 148 SRCS+= ${KMOD:S/$/.c/} 149 CLEANFILES+= ${KMOD:S/$/.c/} 150 151 .for _firmw in ${FIRMWS} 152 ${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 153 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 154 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 155 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 156 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 157 else \ 158 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 159 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 160 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 161 rm ${_firmw:C/\:.*$//}; \ 162 fi 163 164 OBJS+= ${_firmw:C/\:.*$/.fwo/} 165 .endfor 166 .endif 167 168 OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 169 170 .if !defined(PROG) 171 PROG= ${KMOD}.ko 172 .endif 173 174 .if !defined(DEBUG_FLAGS) 175 FULLPROG= ${PROG} 176 .else 177 FULLPROG= ${PROG}.debug 178 ${PROG}: ${FULLPROG} ${PROG}.symbols 179 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 180 ${FULLPROG} ${.TARGET} 181 ${PROG}.symbols: ${FULLPROG} 182 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 183 .endif 184 185 .if ${MACHINE_ARCH} != amd64 && ${MACHINE_ARCH} != mips 186 ${FULLPROG}: ${KMOD}.kld 187 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 188 .if !defined(DEBUG_FLAGS) 189 ${OBJCOPY} --strip-debug ${.TARGET} 190 .endif 191 .endif 192 193 EXPORT_SYMS?= NO 194 .if ${EXPORT_SYMS} != YES 195 CLEANFILES+= export_syms 196 .endif 197 198 .if ${MACHINE_ARCH} != amd64 && ${MACHINE_ARCH} != mips 199 ${KMOD}.kld: ${OBJS} 200 .else 201 ${FULLPROG}: ${OBJS} 202 .endif 203 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 204 .if defined(WITH_CTF) 205 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 206 .endif 207 .if defined(EXPORT_SYMS) 208 .if ${EXPORT_SYMS} != YES 209 .if ${EXPORT_SYMS} == NO 210 :> export_syms 211 .elif !exists(${.CURDIR}/${EXPORT_SYMS}) 212 echo ${EXPORT_SYMS} > export_syms 213 .else 214 grep -v '^#' < ${EXPORT_SYMS} > export_syms 215 .endif 216 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 217 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 218 .endif 219 .endif 220 .if !defined(DEBUG_FLAGS) && \ 221 (${MACHINE_ARCH} == amd64 || ${MACHINE_ARCH} == mips) 222 ${OBJCOPY} --strip-debug ${.TARGET} 223 .endif 224 225 _ILINKS=@ machine 226 .if ${MACHINE} != ${MACHINE_ARCH} 227 _ILINKS+=${MACHINE_ARCH} 228 .endif 229 230 all: objwarn ${PROG} 231 232 beforedepend: ${_ILINKS} 233 234 # Ensure that the links exist without depending on it when it exists which 235 # causes all the modules to be rebuilt when the directory pointed to changes. 236 .for _link in ${_ILINKS} 237 .if !exists(${.OBJDIR}/${_link}) 238 ${OBJS}: ${_link} 239 .endif 240 .endfor 241 242 # Search for kernel source tree in standard places. 243 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 244 .if !defined(SYSDIR) && exists(${_dir}/kern/) 245 SYSDIR= ${_dir} 246 .endif 247 .endfor 248 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 249 .error "can't find kernel source tree" 250 .endif 251 252 ${_ILINKS}: 253 @case ${.TARGET} in \ 254 ${MACHINE_ARCH}) \ 255 path=${SYSDIR}/${MACHINE_ARCH}/include ;; \ 256 machine) \ 257 path=${SYSDIR}/${MACHINE}/include ;; \ 258 @) \ 259 path=${SYSDIR} ;; \ 260 esac ; \ 261 path=`(cd $$path && /bin/pwd)` ; \ 262 ${ECHO} ${.TARGET} "->" $$path ; \ 263 ln -sf $$path ${.TARGET} 264 265 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 266 267 .if defined(DEBUG_FLAGS) 268 CLEANFILES+= ${FULLPROG} ${PROG}.symbols 269 .endif 270 271 .if !target(install) 272 273 _INSTALLFLAGS:= ${INSTALLFLAGS} 274 .for ie in ${INSTALLFLAGS_EDIT} 275 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 276 .endfor 277 278 .if !target(realinstall) 279 realinstall: _kmodinstall 280 .ORDER: beforeinstall _kmodinstall 281 _kmodinstall: 282 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 283 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 284 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) 285 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 286 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 287 .endif 288 289 .include <bsd.links.mk> 290 291 .if !defined(NO_XREF) 292 afterinstall: _kldxref 293 .ORDER: realinstall _kldxref 294 .ORDER: _installlinks _kldxref 295 _kldxref: 296 @if type kldxref >/dev/null 2>&1; then \ 297 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 298 kldxref ${DESTDIR}${KMODDIR}; \ 299 fi 300 .endif 301 .endif # !target(realinstall) 302 303 .endif # !target(install) 304 305 .if !target(load) 306 load: ${PROG} 307 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 308 .endif 309 310 .if !target(unload) 311 unload: 312 ${KMODUNLOAD} -v ${PROG} 313 .endif 314 315 .if defined(KERNBUILDDIR) 316 .PATH: ${KERNBUILDDIR} 317 CFLAGS+= -I${KERNBUILDDIR} 318 .for _src in ${SRCS:Mopt_*.h} 319 CLEANFILES+= ${_src} 320 .if !target(${_src}) 321 ${_src}: 322 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 323 .endif 324 .endfor 325 .else 326 .for _src in ${SRCS:Mopt_*.h} 327 CLEANFILES+= ${_src} 328 .if !target(${_src}) 329 ${_src}: 330 :> ${.TARGET} 331 .endif 332 .endfor 333 .endif 334 335 MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 336 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 337 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 338 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 339 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 340 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 341 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \ 342 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 343 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 344 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 345 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 346 kern/bus_if.m kern/clock_if.m \ 347 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 348 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 349 pc98/pc98/canbus_if.m 350 351 .for _srcsrc in ${MFILES} 352 .for _ext in c h 353 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 354 CLEANFILES+= ${_src} 355 .if !target(${_src}) 356 .if !exists(@) 357 ${_src}: @ 358 .else 359 ${_src}: @/tools/makeobjops.awk @/${_srcsrc} 360 .endif 361 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 362 .endif 363 .endfor # _src 364 .endfor # _ext 365 .endfor # _srcsrc 366 367 .if !empty(SRCS:Mvnode_if.c) 368 CLEANFILES+= vnode_if.c 369 .if !exists(@) 370 vnode_if.c: @ 371 .else 372 vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 373 .endif 374 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 375 .endif 376 377 .if !empty(SRCS:Mvnode_if.h) 378 CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 379 .if !exists(@) 380 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 381 .else 382 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 383 @/kern/vnode_if.src 384 .endif 385 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 386 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 387 vnode_if_newproto.h: 388 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 389 vnode_if_typedef.h: 390 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 391 .endif 392 393 .for _i in mii pccard 394 .if !empty(SRCS:M${_i}devs.h) 395 CLEANFILES+= ${_i}devs.h 396 .if !exists(@) 397 ${_i}devs.h: @ 398 .else 399 ${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 400 .endif 401 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 402 .endif 403 .endfor # _i 404 405 .if !empty(SRCS:Musbdevs.h) 406 CLEANFILES+= usbdevs.h 407 .if !exists(@) 408 usbdevs.h: @ 409 .else 410 usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 411 .endif 412 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 413 .endif 414 415 .if !empty(SRCS:Musbdevs_data.h) 416 CLEANFILES+= usbdevs_data.h 417 .if !exists(@) 418 usbdevs_data.h: @ 419 .else 420 usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 421 .endif 422 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 423 .endif 424 425 .if !empty(SRCS:Macpi_quirks.h) 426 CLEANFILES+= acpi_quirks.h 427 .if !exists(@) 428 acpi_quirks.h: @ 429 .else 430 acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 431 .endif 432 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 433 .endif 434 435 .if !empty(SRCS:Massym.s) 436 CLEANFILES+= assym.s genassym.o 437 assym.s: genassym.o 438 .if defined(KERNBUILDDIR) 439 genassym.o: opt_global.h 440 .endif 441 .if !exists(@) 442 assym.s: @ 443 .else 444 assym.s: @/kern/genassym.sh 445 .endif 446 sh @/kern/genassym.sh genassym.o > ${.TARGET} 447 .if exists(@) 448 genassym.o: @/${MACHINE_ARCH}/${MACHINE_ARCH}/genassym.c 449 .endif 450 genassym.o: @ machine ${SRCS:Mopt_*.h} 451 ${CC} -c ${CFLAGS:N-fno-common} \ 452 @/${MACHINE_ARCH}/${MACHINE_ARCH}/genassym.c 453 .endif 454 455 lint: ${SRCS} 456 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 457 458 .if defined(KERNBUILDDIR) 459 ${OBJS}: opt_global.h 460 .endif 461 462 .include <bsd.dep.mk> 463 464 cleandepend: cleanilinks 465 # .depend needs include links so we remove them only together. 466 cleanilinks: 467 rm -f ${_ILINKS} 468 469 .if !exists(${.OBJDIR}/${DEPENDFILE}) 470 ${OBJS}: ${SRCS:M*.h} 471 .endif 472 473 .include <bsd.obj.mk> 474 .include "kern.mk"
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