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# 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, ${KMOD}.ko is used. 36# 37# SRCS List of source files. 38# 39# FIRMWS List of firmware images in format filename:shortname:version 40# 41# FIRMWARE_LICENSE 42# Set to the name of the license the user has to agree on in 43# order to use this firmware. See /usr/share/doc/legal 44# 45# DESTDIR The tree where the module gets installed. [not set] 46# 47# +++ targets +++ 48# 49# install: 50# install the kernel module; if the Makefile 51# does not itself define the target install, the targets 52# beforeinstall and afterinstall may also be used to cause 53# actions immediately before and after the install target 54# is executed. 55# 56# load: 57# Load a module. 58# 59# unload: 60# Unload a module. 61# 62 63# backwards compat option for older systems. 64MACHINE_CPUARCH?=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb)?/arm/:C/powerpc64/powerpc/} 65 66AWK?= awk 67KMODLOAD?= /sbin/kldload 68KMODUNLOAD?= /sbin/kldunload 69OBJCOPY?= objcopy 70 71.if defined(KMODDEPS) 72.error "Do not use KMODDEPS on 5.0+; use MODULE_VERSION/MODULE_DEPEND" 73.endif 74 75.include <bsd.init.mk> 76.include <bsd.compiler.mk> 77 78.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 79 80# amd64 and mips use direct linking for kmod, all others use shared binaries 81.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 82__KLD_SHARED=yes 83.else 84__KLD_SHARED=no 85.endif 86 87.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 88CFLAGS+= -fno-strict-aliasing 89.endif 90WERROR?= -Werror 91CFLAGS+= ${WERROR} 92CFLAGS+= -D_KERNEL 93CFLAGS+= -DKLD_MODULE 94 95# Don't use any standard or source-relative include directories. 96CSTD= c99 97NOSTDINC= -nostdinc 98CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 99.if defined(KERNBUILDDIR) 100CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 101.endif 102 103# Add -I paths for system headers. Individual module makefiles don't 104# need any -I paths for this. Similar defaults for .PATH can't be 105# set because there are no standard paths for non-headers. 106CFLAGS+= -I. -I@ 107 108# Add -I path for altq headers as they are included via net/if_var.h 109# for example. 110CFLAGS+= -I@/contrib/altq 111 112.if ${COMPILER_TYPE} != "clang" 113CFLAGS+= -finline-limit=${INLINE_LIMIT} 114CFLAGS+= --param inline-unit-growth=100 115CFLAGS+= --param large-function-growth=1000 116.endif 117 118# Disallow common variables, and if we end up with commons from 119# somewhere unexpected, allocate storage for them in the module itself. 120CFLAGS+= -fno-common 121LDFLAGS+= -d -warn-common 122 123CFLAGS+= ${DEBUG_FLAGS} 124.if ${MACHINE_CPUARCH} == amd64 125CFLAGS+= -fno-omit-frame-pointer 126.endif 127 128.if ${MACHINE_CPUARCH} == powerpc 129CFLAGS+= -mlongcall -fno-omit-frame-pointer 130.endif 131 132.if ${MACHINE_CPUARCH} == mips 133CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 134.endif 135 136.if defined(DEBUG) || defined(DEBUG_FLAGS) 137CTFFLAGS+= -g 138.endif 139 140.if defined(FIRMWS) 141.if !exists(@) 142${KMOD:S/$/.c/}: @ 143.else 144${KMOD:S/$/.c/}: @/tools/fw_stub.awk 145.endif 146 ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 147 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 148 149SRCS+= ${KMOD:S/$/.c/} 150CLEANFILES+= ${KMOD:S/$/.c/} 151 152.for _firmw in ${FIRMWS} 153${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 154 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 155 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 156 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 157 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 158 else \ 159 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 160 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 161 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 162 rm ${_firmw:C/\:.*$//}; \ 163 fi 164 165OBJS+= ${_firmw:C/\:.*$/.fwo/} 166.endfor 167.endif 168 169OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 170 171.if !defined(PROG) 172PROG= ${KMOD}.ko 173.endif 174 175.if !defined(DEBUG_FLAGS) 176FULLPROG= ${PROG} 177.else 178FULLPROG= ${PROG}.debug 179${PROG}: ${FULLPROG} ${PROG}.symbols 180 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 181 ${FULLPROG} ${.TARGET} 182${PROG}.symbols: ${FULLPROG} 183 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 184.endif 185 186.if ${__KLD_SHARED} == yes 187${FULLPROG}: ${KMOD}.kld 188 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 189.if !defined(DEBUG_FLAGS) 190 ${OBJCOPY} --strip-debug ${.TARGET} 191.endif 192.endif 193 194EXPORT_SYMS?= NO 195.if ${EXPORT_SYMS} != YES 196CLEANFILES+= export_syms 197.endif 198 199.if ${__KLD_SHARED} == yes 200${KMOD}.kld: ${OBJS} 201.else 202${FULLPROG}: ${OBJS} 203.endif 204 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 205.if defined(MK_CTF) && ${MK_CTF} != "no" 206 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 207.endif 208.if defined(EXPORT_SYMS) 209.if ${EXPORT_SYMS} != YES 210.if ${EXPORT_SYMS} == NO 211 :> export_syms 212.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 213 echo ${EXPORT_SYMS} > export_syms 214.else 215 grep -v '^#' < ${EXPORT_SYMS} > export_syms 216.endif 217 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 218 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 219.endif 220.endif 221.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 222 ${OBJCOPY} --strip-debug ${.TARGET} 223.endif 224 225_ILINKS=@ machine 226.if ${MACHINE} != ${MACHINE_CPUARCH} 227_ILINKS+=${MACHINE_CPUARCH} 228.endif 229.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 230_ILINKS+=x86 231.endif 232 233all: objwarn ${PROG} 234 235beforedepend: ${_ILINKS} 236 237# Ensure that the links exist without depending on it when it exists which 238# causes all the modules to be rebuilt when the directory pointed to changes. 239.for _link in ${_ILINKS} 240.if !exists(${.OBJDIR}/${_link}) 241${OBJS}: ${_link} 242.endif 243.endfor 244 245# Search for kernel source tree in standard places. 246.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 247.if !defined(SYSDIR) && exists(${_dir}/kern/) 248SYSDIR= ${_dir} 249.endif 250.endfor 251.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 252.error "can't find kernel source tree" 253.endif 254 255.NOPATH: ${_ILINKS} 256 257${_ILINKS}: 258 @case ${.TARGET} in \ 259 machine) \ 260 path=${SYSDIR}/${MACHINE}/include ;; \ 261 @) \ 262 path=${SYSDIR} ;; \ 263 *) \ 264 path=${SYSDIR}/${.TARGET}/include ;; \ 265 esac ; \ 266 path=`(cd $$path && /bin/pwd)` ; \ 267 ${ECHO} ${.TARGET} "->" $$path ; \ 268 ln -sf $$path ${.TARGET} 269 270CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 271 272.if defined(DEBUG_FLAGS) 273CLEANFILES+= ${FULLPROG} ${PROG}.symbols 274.endif 275 276.if !target(install) 277 278_INSTALLFLAGS:= ${INSTALLFLAGS} 279.for ie in ${INSTALLFLAGS_EDIT} 280_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 281.endfor 282 283.if !target(realinstall) 284realinstall: _kmodinstall 285.ORDER: beforeinstall _kmodinstall 286_kmodinstall: 287 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 288 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 289.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 290 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 291 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 292.endif 293 294.include <bsd.links.mk> 295 296.if !defined(NO_XREF) 297afterinstall: _kldxref 298.ORDER: realinstall _kldxref 299.ORDER: _installlinks _kldxref 300_kldxref: 301 @if type kldxref >/dev/null 2>&1; then \ 302 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 303 kldxref ${DESTDIR}${KMODDIR}; \ 304 fi 305.endif 306.endif # !target(realinstall) 307 308.endif # !target(install) 309 310.if !target(load) 311load: ${PROG} 312 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 313.endif 314 315.if !target(unload) 316unload: 317 ${KMODUNLOAD} -v ${PROG} 318.endif 319 320.if defined(KERNBUILDDIR) 321.PATH: ${KERNBUILDDIR} 322CFLAGS+= -I${KERNBUILDDIR} 323.for _src in ${SRCS:Mopt_*.h} 324CLEANFILES+= ${_src} 325.if !target(${_src}) 326${_src}: 327 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 328.endif 329.endfor 330.else 331.for _src in ${SRCS:Mopt_*.h} 332CLEANFILES+= ${_src} 333.if !target(${_src}) 334${_src}: 335 :> ${.TARGET} 336.endif 337.endfor 338.endif 339 340# Respect configuration-specific C flags. 341CFLAGS+= ${CONF_CFLAGS} 342 343MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 344 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 345 dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 346 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 347 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 348 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 349 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 350 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 351 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m \ 352 dev/sound/pci/hda/hdac_if.m \ 353 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 354 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 355 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 356 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 357 kern/bus_if.m kern/clock_if.m \ 358 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 359 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 360 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 361 362.for _srcsrc in ${MFILES} 363.for _ext in c h 364.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 365CLEANFILES+= ${_src} 366.if !target(${_src}) 367.if !exists(@) 368${_src}: @ 369.else 370${_src}: @/tools/makeobjops.awk @/${_srcsrc} 371.endif 372 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 373.endif 374.endfor # _src 375.endfor # _ext 376.endfor # _srcsrc 377 378.if !empty(SRCS:Mvnode_if.c) 379CLEANFILES+= vnode_if.c 380.if !exists(@) 381vnode_if.c: @ 382.else 383vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 384.endif 385 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 386.endif 387 388.if !empty(SRCS:Mvnode_if.h) 389CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 390.if !exists(@) 391vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 392.else 393vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 394 @/kern/vnode_if.src 395.endif 396vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 397 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 398vnode_if_newproto.h: 399 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 400vnode_if_typedef.h: 401 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 402.endif 403 404.for _i in mii pccard 405.if !empty(SRCS:M${_i}devs.h) 406CLEANFILES+= ${_i}devs.h 407.if !exists(@) 408${_i}devs.h: @ 409.else 410${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 411.endif 412 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 413.endif 414.endfor # _i 415 416.if !empty(SRCS:Musbdevs.h) 417CLEANFILES+= usbdevs.h 418.if !exists(@) 419usbdevs.h: @ 420.else 421usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 422.endif 423 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 424.endif 425 426.if !empty(SRCS:Musbdevs_data.h) 427CLEANFILES+= usbdevs_data.h 428.if !exists(@) 429usbdevs_data.h: @ 430.else 431usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 432.endif 433 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 434.endif 435 436.if !empty(SRCS:Macpi_quirks.h) 437CLEANFILES+= acpi_quirks.h 438.if !exists(@) 439acpi_quirks.h: @ 440.else 441acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 442.endif 443 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 444.endif 445 446.if !empty(SRCS:Massym.s) 447CLEANFILES+= assym.s genassym.o 448assym.s: genassym.o 449.if defined(KERNBUILDDIR) 450genassym.o: opt_global.h 451.endif 452.if !exists(@) 453assym.s: @ 454.else 455assym.s: @/kern/genassym.sh 456.endif 457 sh @/kern/genassym.sh genassym.o > ${.TARGET} 458.if exists(@) 459genassym.o: @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 460.endif 461genassym.o: @ machine ${SRCS:Mopt_*.h} 462 ${CC} -c ${CFLAGS:N-fno-common} \ 463 @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 464.endif 465 466lint: ${SRCS} 467 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 468 469.if defined(KERNBUILDDIR) 470${OBJS}: opt_global.h 471.endif 472 473.include <bsd.dep.mk> 474 475cleandepend: cleanilinks 476# .depend needs include links so we remove them only together. 477cleanilinks: 478 rm -f ${_ILINKS} 479 480.if !exists(${.OBJDIR}/${DEPENDFILE}) 481${OBJS}: ${SRCS:M*.h} 482.endif 483 484.include <bsd.obj.mk> 485.include "kern.mk" 486