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. 92NOSTDINC= -nostdinc 93CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 94.if defined(KERNBUILDDIR) 95CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 96.endif 97 98# Add -I paths for system headers. Individual module makefiles don't 99# need any -I paths for this. Similar defaults for .PATH can't be 100# set because there are no standard paths for non-headers. 101CFLAGS+= -I. -I${SYSDIR} 102 103# Add -I path for altq headers as they are included via net/if_var.h 104# for example. 105CFLAGS+= -I${SYSDIR}/contrib/altq 106 107CFLAGS.gcc+= -finline-limit=${INLINE_LIMIT} 108CFLAGS.gcc+= --param inline-unit-growth=100 109CFLAGS.gcc+= --param large-function-growth=1000 110 111# Disallow common variables, and if we end up with commons from 112# somewhere unexpected, allocate storage for them in the module itself. 113CFLAGS+= -fno-common 114LDFLAGS+= -d -warn-common 115 116CFLAGS+= ${DEBUG_FLAGS} 117.if ${MACHINE_CPUARCH} == amd64 118CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 119.endif 120 121# Temporary workaround for PR 196407, which contains the fascinating details. 122# Don't allow clang to use fpu instructions or registers in kernel modules. 123.if ${MACHINE_CPUARCH} == arm 124CFLAGS.clang+= -mllvm -arm-use-movt=0 125CFLAGS.clang+= -mfpu=none 126.endif 127 128.if ${MACHINE_CPUARCH} == powerpc 129CFLAGS+= -mlongcall -fno-omit-frame-pointer 130.endif 131 132.if ${MACHINE_CPUARCH} == mips 133CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 134.endif 135 136.if defined(DEBUG) || defined(DEBUG_FLAGS) 137CTFFLAGS+= -g 138.endif 139 140.if defined(FIRMWS) 141${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk 142 ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 143 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 144 145SRCS+= ${KMOD:S/$/.c/} 146CLEANFILES+= ${KMOD:S/$/.c/} 147 148.for _firmw in ${FIRMWS} 149${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 150 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 151 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 152 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 153 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 154 else \ 155 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 156 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 157 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 158 rm ${_firmw:C/\:.*$//}; \ 159 fi 160 161OBJS+= ${_firmw:C/\:.*$/.fwo/} 162.endfor 163.endif 164 165OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 166 167.if !defined(PROG) 168PROG= ${KMOD}.ko 169.endif 170 171.if !defined(DEBUG_FLAGS) 172FULLPROG= ${PROG} 173.else 174FULLPROG= ${PROG}.debug 175${PROG}: ${FULLPROG} ${PROG}.symbols 176 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 177 ${FULLPROG} ${.TARGET} 178${PROG}.symbols: ${FULLPROG} 179 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 180.endif 181 182.if ${__KLD_SHARED} == yes 183${FULLPROG}: ${KMOD}.kld 184 ${LD} -Bshareable ${_LDFLAGS} -o ${.TARGET} ${KMOD}.kld 185.if !defined(DEBUG_FLAGS) 186 ${OBJCOPY} --strip-debug ${.TARGET} 187.endif 188.endif 189 190EXPORT_SYMS?= NO 191.if ${EXPORT_SYMS} != YES 192CLEANFILES+= export_syms 193.endif 194 195.if ${__KLD_SHARED} == yes 196${KMOD}.kld: ${OBJS} 197.else 198${FULLPROG}: ${OBJS} 199.endif 200 ${LD} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 201.if ${MK_CTF} != "no" 202 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 203.endif 204.if defined(EXPORT_SYMS) 205.if ${EXPORT_SYMS} != YES 206.if ${EXPORT_SYMS} == NO 207 :> export_syms 208.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 209 echo ${EXPORT_SYMS} > export_syms 210.else 211 grep -v '^#' < ${EXPORT_SYMS} > export_syms 212.endif 213 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 214 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 215.endif 216.endif 217.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 218 ${OBJCOPY} --strip-debug ${.TARGET} 219.endif 220 221_ILINKS=machine 222.if ${MACHINE} != ${MACHINE_CPUARCH} 223_ILINKS+=${MACHINE_CPUARCH} 224.endif 225.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 226_ILINKS+=x86 227.endif 228CLEANFILES+=${_ILINKS} 229 230all: objwarn ${PROG} 231 232beforedepend: ${_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}: ${.OBJDIR}/${_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/) 245SYSDIR= ${_dir} 246.endif 247.endfor 248.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 249.error "can't find kernel source tree" 250.endif 251 252.for _link in ${_ILINKS} 253.PHONY: ${_link} 254${_link}: ${.OBJDIR}/${_link} 255 256${.OBJDIR}/${_link}: 257 @case ${.TARGET:T} in \ 258 machine) \ 259 path=${SYSDIR}/${MACHINE}/include ;; \ 260 *) \ 261 path=${SYSDIR}/${.TARGET:T}/include ;; \ 262 esac ; \ 263 path=`(cd $$path && /bin/pwd)` ; \ 264 ${ECHO} ${.TARGET:T} "->" $$path ; \ 265 ln -sf $$path ${.TARGET:T} 266.endfor 267 268CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 269 270.if defined(DEBUG_FLAGS) 271CLEANFILES+= ${FULLPROG} ${PROG}.symbols 272.endif 273 274.if !target(install) 275 276_INSTALLFLAGS:= ${INSTALLFLAGS} 277.for ie in ${INSTALLFLAGS_EDIT} 278_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 279.endfor 280 281.if !target(realinstall) 282realinstall: _kmodinstall 283.ORDER: beforeinstall _kmodinstall 284_kmodinstall: 285 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 286 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 287.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 288 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 289 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 290.endif 291 292.include <bsd.links.mk> 293 294.if !defined(NO_XREF) 295afterinstall: _kldxref 296.ORDER: realinstall _kldxref 297.ORDER: _installlinks _kldxref 298_kldxref: 299 @if type kldxref >/dev/null 2>&1; then \ 300 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 301 kldxref ${DESTDIR}${KMODDIR}; \ 302 fi 303.endif 304.endif # !target(realinstall) 305 306.endif # !target(install) 307 308.if !target(load) 309load: ${PROG} 310 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 311.endif 312 313.if !target(unload) 314unload: 315 ${KMODUNLOAD} -v ${PROG} 316.endif 317 318# Generate options files that otherwise would be built 319# in substantially similar ways through the tree. Move 320# the code here when they all produce identical results 321# (or should) 322.if !defined(KERNBUILDDIR) 323opt_bpf.h: 324 echo "#define DEV_BPF 1" > ${.TARGET} 325.if ${MK_INET_SUPPORT} != "no" 326opt_inet.h: 327 @echo "#define INET 1" > ${.TARGET} 328 @echo "#define TCP_OFFLOAD 1" >> ${.TARGET} 329.endif 330.if ${MK_INET6_SUPPORT} != "no" 331opt_inet6.h: 332 @echo "#define INET6 1" > ${.TARGET} 333.endif 334opt_mrouting.h: 335 echo "#define MROUTING 1" > ${.TARGET} 336opt_natm.h: 337 echo "#define NATM 1" > ${.TARGET} 338opt_scsi.h: 339 echo "#define SCSI_DELAY 15000" > ${.TARGET} 340opt_wlan.h: 341 echo "#define IEEE80211_DEBUG 1" > ${.TARGET} 342 echo "#define IEEE80211_AMPDU_AGE 1" >> ${.TARGET} 343 echo "#define IEEE80211_SUPPORT_MESH 1" >> ${.TARGET} 344.endif 345 346.if defined(KERNBUILDDIR) 347.PATH: ${KERNBUILDDIR} 348CFLAGS+= -I${KERNBUILDDIR} 349.for _src in ${SRCS:Mopt_*.h} 350CLEANFILES+= ${_src} 351.if !target(${_src}) 352${_src}: 353 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 354.endif 355.endfor 356.else 357.for _src in ${SRCS:Mopt_*.h} 358CLEANFILES+= ${_src} 359.if !target(${_src}) 360${_src}: 361 :> ${.TARGET} 362.endif 363.endfor 364.endif 365 366# Respect configuration-specific C flags. 367CFLAGS+= ${CONF_CFLAGS} 368 369MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 370 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 371 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 372 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 373 dev/mbox/mbox_if.m dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 374 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 375 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 376 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 377 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 378 dev/sound/pci/hda/hdac_if.m \ 379 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 380 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 381 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 382 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 383 kern/bus_if.m kern/clock_if.m \ 384 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 385 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 386 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 387 388.for _srcsrc in ${MFILES} 389.for _ext in c h 390.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 391CLEANFILES+= ${_src} 392.if !target(${_src}) 393${_src}: ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} 394 ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} -${_ext} 395.endif 396.endfor # _src 397.endfor # _ext 398.endfor # _srcsrc 399 400.if !empty(SRCS:Mvnode_if.c) 401CLEANFILES+= vnode_if.c 402vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src 403 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c 404.endif 405 406.if !empty(SRCS:Mvnode_if.h) 407CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 408vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \ 409 ${SYSDIR}/kern/vnode_if.src 410vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 411 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h 412vnode_if_newproto.h: 413 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p 414vnode_if_typedef.h: 415 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q 416.endif 417 418.for _i in mii pccard 419.if !empty(SRCS:M${_i}devs.h) 420CLEANFILES+= ${_i}devs.h 421${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 422 ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 423.endif 424.endfor # _i 425 426.if !empty(SRCS:Musbdevs.h) 427CLEANFILES+= usbdevs.h 428usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 429 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h 430.endif 431 432.if !empty(SRCS:Musbdevs_data.h) 433CLEANFILES+= usbdevs_data.h 434usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 435 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d 436.endif 437 438.if !empty(SRCS:Macpi_quirks.h) 439CLEANFILES+= acpi_quirks.h 440acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 441 ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 442.endif 443 444.if !empty(SRCS:Massym.s) 445CLEANFILES+= assym.s genassym.o 446assym.s: genassym.o 447.if defined(KERNBUILDDIR) 448genassym.o: opt_global.h 449.endif 450assym.s: ${SYSDIR}/kern/genassym.sh 451 sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET} 452genassym.o: ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 453genassym.o: ${SRCS:Mopt_*.h} 454 ${CC} -c ${CFLAGS:N-fno-common} \ 455 ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 456.endif 457 458lint: ${SRCS} 459 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 460 461.if defined(KERNBUILDDIR) 462${OBJS}: opt_global.h 463.endif 464 465.include <bsd.dep.mk> 466 467cleandepend: cleanilinks 468# .depend needs include links so we remove them only together. 469cleanilinks: 470 rm -f ${_ILINKS} 471 472.if !exists(${.OBJDIR}/${DEPENDFILE}) 473${OBJS}: ${SRCS:M*.h} 474.endif 475 476.include <bsd.obj.mk> 477.include "kern.mk" 478