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 63AWK?= awk 64KMODLOAD?= /sbin/kldload 65KMODUNLOAD?= /sbin/kldunload 66OBJCOPY?= objcopy 67 68.include <bsd.init.mk> 69# Grab all the options for a kernel build. For backwards compat, we need to 70# do this after bsd.own.mk. 71.include "kern.opts.mk" 72.include <bsd.compiler.mk> 73 74.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 75 76# amd64 and mips use direct linking for kmod, all others use shared binaries 77.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 78__KLD_SHARED=yes 79.else 80__KLD_SHARED=no 81.endif 82 83.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 84CFLAGS+= -fno-strict-aliasing 85.endif 86WERROR?= -Werror 87CFLAGS+= ${WERROR} 88CFLAGS+= -D_KERNEL 89CFLAGS+= -DKLD_MODULE 90 91# Don't use any standard or source-relative include directories. 92CSTD= c99 93NOSTDINC= -nostdinc 94CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 95.if defined(KERNBUILDDIR) 96CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 97.endif 98 99# Add -I paths for system headers. Individual module makefiles don't 100# need any -I paths for this. Similar defaults for .PATH can't be 101# set because there are no standard paths for non-headers. 102CFLAGS+= -I. -I${SYSDIR} 103 104# Add -I path for altq headers as they are included via net/if_var.h 105# for example. 106CFLAGS+= -I${SYSDIR}/contrib/altq 107 108CFLAGS.gcc+= -finline-limit=${INLINE_LIMIT} 109CFLAGS.gcc+= --param inline-unit-growth=100 110CFLAGS.gcc+= --param large-function-growth=1000 111 112# Disallow common variables, and if we end up with commons from 113# somewhere unexpected, allocate storage for them in the module itself. 114CFLAGS+= -fno-common 115LDFLAGS+= -d -warn-common 116 117CFLAGS+= ${DEBUG_FLAGS} 118.if ${MACHINE_CPUARCH} == amd64 119CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 120.endif 121 122.if ${MACHINE_CPUARCH} == powerpc 123CFLAGS+= -mlongcall -fno-omit-frame-pointer 124.endif 125 126.if ${MACHINE_CPUARCH} == mips 127CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 128.endif 129 130.if defined(DEBUG) || defined(DEBUG_FLAGS) 131CTFFLAGS+= -g 132.endif 133 134.if defined(FIRMWS) 135${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk 136 ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 137 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 138 139SRCS+= ${KMOD:S/$/.c/} 140CLEANFILES+= ${KMOD:S/$/.c/} 141 142.for _firmw in ${FIRMWS} 143${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 144 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 145 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 146 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 147 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 148 else \ 149 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 150 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 151 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 152 rm ${_firmw:C/\:.*$//}; \ 153 fi 154 155OBJS+= ${_firmw:C/\:.*$/.fwo/} 156.endfor 157.endif 158 159OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 160 161.if !defined(PROG) 162PROG= ${KMOD}.ko 163.endif 164 165.if !defined(DEBUG_FLAGS) 166FULLPROG= ${PROG} 167.else 168FULLPROG= ${PROG}.debug 169${PROG}: ${FULLPROG} ${PROG}.symbols 170 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 171 ${FULLPROG} ${.TARGET} 172${PROG}.symbols: ${FULLPROG} 173 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 174.endif 175 176.if ${__KLD_SHARED} == yes 177${FULLPROG}: ${KMOD}.kld 178 ${LD} -Bshareable ${_LDFLAGS} -o ${.TARGET} ${KMOD}.kld 179.if !defined(DEBUG_FLAGS) 180 ${OBJCOPY} --strip-debug ${.TARGET} 181.endif 182.endif 183 184EXPORT_SYMS?= NO 185.if ${EXPORT_SYMS} != YES 186CLEANFILES+= export_syms 187.endif 188 189.if ${__KLD_SHARED} == yes 190${KMOD}.kld: ${OBJS} 191.else 192${FULLPROG}: ${OBJS} 193.endif 194 ${LD} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 195.if ${MK_CTF} != "no" 196 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 197.endif 198.if defined(EXPORT_SYMS) 199.if ${EXPORT_SYMS} != YES 200.if ${EXPORT_SYMS} == NO 201 :> export_syms 202.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 203 echo ${EXPORT_SYMS} > export_syms 204.else 205 grep -v '^#' < ${EXPORT_SYMS} > export_syms 206.endif 207 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 208 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 209.endif 210.endif 211.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 212 ${OBJCOPY} --strip-debug ${.TARGET} 213.endif 214 215_ILINKS=machine 216.if ${MACHINE} != ${MACHINE_CPUARCH} 217_ILINKS+=${MACHINE_CPUARCH} 218.endif 219.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 220_ILINKS+=x86 221.endif 222CLEANFILES+=${_ILINKS} 223 224all: objwarn ${PROG} 225 226beforedepend: ${_ILINKS} 227 228# Ensure that the links exist without depending on it when it exists which 229# causes all the modules to be rebuilt when the directory pointed to changes. 230.for _link in ${_ILINKS} 231.if !exists(${.OBJDIR}/${_link}) 232${OBJS}: ${.OBJDIR}/${_link} 233.endif 234.endfor 235 236# Search for kernel source tree in standard places. 237.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 238.if !defined(SYSDIR) && exists(${_dir}/kern/) 239SYSDIR= ${_dir} 240.endif 241.endfor 242.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 243.error "can't find kernel source tree" 244.endif 245 246.for _link in ${_ILINKS} 247.PHONY: ${_link} 248${_link}: ${.OBJDIR}/${_link} 249 250${.OBJDIR}/${_link}: 251 @case ${.TARGET:T} in \ 252 machine) \ 253 path=${SYSDIR}/${MACHINE}/include ;; \ 254 *) \ 255 path=${SYSDIR}/${.TARGET:T}/include ;; \ 256 esac ; \ 257 path=`(cd $$path && /bin/pwd)` ; \ 258 ${ECHO} ${.TARGET:T} "->" $$path ; \ 259 ln -sf $$path ${.TARGET:T} 260.endfor 261 262CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 263 264.if defined(DEBUG_FLAGS) 265CLEANFILES+= ${FULLPROG} ${PROG}.symbols 266.endif 267 268.if !target(install) 269 270_INSTALLFLAGS:= ${INSTALLFLAGS} 271.for ie in ${INSTALLFLAGS_EDIT} 272_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 273.endfor 274 275.if !target(realinstall) 276realinstall: _kmodinstall 277.ORDER: beforeinstall _kmodinstall 278_kmodinstall: 279 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 280 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 281.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 282 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 283 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 284.endif 285 286.include <bsd.links.mk> 287 288.if !defined(NO_XREF) 289afterinstall: _kldxref 290.ORDER: realinstall _kldxref 291.ORDER: _installlinks _kldxref 292_kldxref: 293 @if type kldxref >/dev/null 2>&1; then \ 294 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 295 kldxref ${DESTDIR}${KMODDIR}; \ 296 fi 297.endif 298.endif # !target(realinstall) 299 300.endif # !target(install) 301 302.if !target(load) 303load: ${PROG} 304 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 305.endif 306 307.if !target(unload) 308unload: 309 ${KMODUNLOAD} -v ${PROG} 310.endif 311 312# Generate options files that otherwise would be built 313# in substantially similar ways through the tree. Move 314# the code here when they all produce identical results 315# (or should) 316.if !defined(KERNBUILDDIR) 317opt_bpf.h: 318 echo "#define DEV_BPF 1" > ${.TARGET} 319.if ${MK_INET_SUPPORT} != "no" 320opt_inet.h: 321 @echo "#define INET 1" > ${.TARGET} 322 @echo "#define TCP_OFFLOAD 1" >> ${.TARGET} 323.endif 324.if ${MK_INET6_SUPPORT} != "no" 325opt_inet6.h: 326 @echo "#define INET6 1" > ${.TARGET} 327.endif 328opt_mrouting.h: 329 echo "#define MROUTING 1" > ${.TARGET} 330opt_natm.h: 331 echo "#define NATM 1" > ${.TARGET} 332opt_scsi.h: 333 echo "#define SCSI_DELAY 15000" > ${.TARGET} 334opt_wlan.h: 335 echo "#define IEEE80211_DEBUG 1" > ${.TARGET} 336 echo "#define IEEE80211_AMPDU_AGE 1" >> ${.TARGET} 337 echo "#define IEEE80211_SUPPORT_MESH 1" >> ${.TARGET} 338.endif 339 340.if defined(KERNBUILDDIR) 341.PATH: ${KERNBUILDDIR} 342CFLAGS+= -I${KERNBUILDDIR} 343.for _src in ${SRCS:Mopt_*.h} 344CLEANFILES+= ${_src} 345.if !target(${_src}) 346${_src}: 347 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 348.endif 349.endfor 350.else 351.for _src in ${SRCS:Mopt_*.h} 352CLEANFILES+= ${_src} 353.if !target(${_src}) 354${_src}: 355 :> ${.TARGET} 356.endif 357.endfor 358.endif 359 360# Respect configuration-specific C flags. 361CFLAGS+= ${CONF_CFLAGS} 362 363MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 364 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 365 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 366 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 367 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 368 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 369 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 370 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 371 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 372 dev/sound/pci/hda/hdac_if.m \ 373 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 374 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 375 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 376 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 377 kern/bus_if.m kern/clock_if.m \ 378 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 379 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 380 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 381 382.for _srcsrc in ${MFILES} 383.for _ext in c h 384.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 385CLEANFILES+= ${_src} 386.if !target(${_src}) 387${_src}: ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} 388 ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} -${_ext} 389.endif 390.endfor # _src 391.endfor # _ext 392.endfor # _srcsrc 393 394.if !empty(SRCS:Mvnode_if.c) 395CLEANFILES+= vnode_if.c 396vnode_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) 401CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 402vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \ 403 ${SYSDIR}/kern/vnode_if.src 404vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 405 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h 406vnode_if_newproto.h: 407 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p 408vnode_if_typedef.h: 409 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q 410.endif 411 412.for _i in mii pccard 413.if !empty(SRCS:M${_i}devs.h) 414CLEANFILES+= ${_i}devs.h 415${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 416 ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 417.endif 418.endfor # _i 419 420.if !empty(SRCS:Musbdevs.h) 421CLEANFILES+= usbdevs.h 422usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 423 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h 424.endif 425 426.if !empty(SRCS:Musbdevs_data.h) 427CLEANFILES+= usbdevs_data.h 428usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 429 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d 430.endif 431 432.if !empty(SRCS:Macpi_quirks.h) 433CLEANFILES+= acpi_quirks.h 434acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 435 ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 436.endif 437 438.if !empty(SRCS:Massym.s) 439CLEANFILES+= assym.s genassym.o 440assym.s: genassym.o 441.if defined(KERNBUILDDIR) 442genassym.o: opt_global.h 443.endif 444assym.s: ${SYSDIR}/kern/genassym.sh 445 sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET} 446genassym.o: ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 447genassym.o: ${SRCS:Mopt_*.h} 448 ${CC} -c ${CFLAGS:N-fno-common} \ 449 ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 450.endif 451 452lint: ${SRCS} 453 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 454 455.if defined(KERNBUILDDIR) 456${OBJS}: opt_global.h 457.endif 458 459.include <bsd.dep.mk> 460 461cleandepend: cleanilinks 462# .depend needs include links so we remove them only together. 463cleanilinks: 464 rm -f ${_ILINKS} 465 466.if !exists(${.OBJDIR}/${DEPENDFILE}) 467${OBJS}: ${SRCS:M*.h} 468.endif 469 470.include <bsd.obj.mk> 471.include "kern.mk" 472