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+= -fms-extensions 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# Temporary workaround for PR 196407, which contains the fascinating details. 123# Don't allow clang to use fpu instructions or registers in kernel modules. 124.if ${MACHINE_CPUARCH} == arm 125CFLAGS.clang+= -mllvm -arm-use-movt=0 126CFLAGS.clang+= -mfpu=none 127.endif 128 129.if ${MACHINE_CPUARCH} == powerpc 130CFLAGS+= -mlongcall -fno-omit-frame-pointer 131.endif 132 133.if ${MACHINE_CPUARCH} == mips 134CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 135.endif 136 137.if defined(DEBUG) || defined(DEBUG_FLAGS) 138CTFFLAGS+= -g 139.endif 140 141.if defined(FIRMWS) 142${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk 143 ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 144 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 145 146SRCS+= ${KMOD:S/$/.c/} 147CLEANFILES+= ${KMOD:S/$/.c/} 148 149.for _firmw in ${FIRMWS} 150${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 151 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 152 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 153 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 154 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 155 else \ 156 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 157 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 158 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 159 rm ${_firmw:C/\:.*$//}; \ 160 fi 161 162OBJS+= ${_firmw:C/\:.*$/.fwo/} 163.endfor 164.endif 165 166OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 167 168.if !defined(PROG) 169PROG= ${KMOD}.ko 170.endif 171 172.if !defined(DEBUG_FLAGS) 173FULLPROG= ${PROG} 174.else 175FULLPROG= ${PROG}.debug 176${PROG}: ${FULLPROG} ${PROG}.symbols 177 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 178 ${FULLPROG} ${.TARGET} 179${PROG}.symbols: ${FULLPROG} 180 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 181.endif 182 183.if ${__KLD_SHARED} == yes 184${FULLPROG}: ${KMOD}.kld 185 ${LD} -Bshareable ${_LDFLAGS} -o ${.TARGET} ${KMOD}.kld 186.if !defined(DEBUG_FLAGS) 187 ${OBJCOPY} --strip-debug ${.TARGET} 188.endif 189.endif 190 191EXPORT_SYMS?= NO 192.if ${EXPORT_SYMS} != YES 193CLEANFILES+= export_syms 194.endif 195 196.if ${__KLD_SHARED} == yes 197${KMOD}.kld: ${OBJS} 198.else 199${FULLPROG}: ${OBJS} 200.endif 201 ${LD} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 202.if ${MK_CTF} != "no" 203 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 204.endif 205.if defined(EXPORT_SYMS) 206.if ${EXPORT_SYMS} != YES 207.if ${EXPORT_SYMS} == NO 208 :> export_syms 209.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 210 echo ${EXPORT_SYMS} > export_syms 211.else 212 grep -v '^#' < ${EXPORT_SYMS} > export_syms 213.endif 214 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 215 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 216.endif 217.endif 218.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 219 ${OBJCOPY} --strip-debug ${.TARGET} 220.endif 221 222_ILINKS=machine 223.if ${MACHINE} != ${MACHINE_CPUARCH} 224_ILINKS+=${MACHINE_CPUARCH} 225.endif 226.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 227_ILINKS+=x86 228.endif 229CLEANFILES+=${_ILINKS} 230 231all: objwarn ${PROG} 232 233beforedepend: ${_ILINKS} 234 235# Ensure that the links exist without depending on it when it exists which 236# causes all the modules to be rebuilt when the directory pointed to changes. 237.for _link in ${_ILINKS} 238.if !exists(${.OBJDIR}/${_link}) 239${OBJS}: ${.OBJDIR}/${_link} 240.endif 241.endfor 242 243# Search for kernel source tree in standard places. 244.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 245.if !defined(SYSDIR) && exists(${_dir}/kern/) 246SYSDIR= ${_dir} 247.endif 248.endfor 249.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 250.error "can't find kernel source tree" 251.endif 252 253.for _link in ${_ILINKS} 254.PHONY: ${_link} 255${_link}: ${.OBJDIR}/${_link} 256 257${.OBJDIR}/${_link}: 258 @case ${.TARGET:T} in \ 259 machine) \ 260 path=${SYSDIR}/${MACHINE}/include ;; \ 261 *) \ 262 path=${SYSDIR}/${.TARGET:T}/include ;; \ 263 esac ; \ 264 path=`(cd $$path && /bin/pwd)` ; \ 265 ${ECHO} ${.TARGET:T} "->" $$path ; \ 266 ln -sf $$path ${.TARGET:T} 267.endfor 268 269CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 270 271.if defined(DEBUG_FLAGS) 272CLEANFILES+= ${FULLPROG} ${PROG}.symbols 273.endif 274 275.if !target(install) 276 277_INSTALLFLAGS:= ${INSTALLFLAGS} 278.for ie in ${INSTALLFLAGS_EDIT} 279_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 280.endfor 281 282.if !target(realinstall) 283realinstall: _kmodinstall 284.ORDER: beforeinstall _kmodinstall 285_kmodinstall: 286 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 287 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 288.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 289 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 290 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 291.endif 292 293.include <bsd.links.mk> 294 295.if !defined(NO_XREF) 296afterinstall: _kldxref 297.ORDER: realinstall _kldxref 298.ORDER: _installlinks _kldxref 299_kldxref: 300 @if type kldxref >/dev/null 2>&1; then \ 301 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 302 kldxref ${DESTDIR}${KMODDIR}; \ 303 fi 304.endif 305.endif # !target(realinstall) 306 307.endif # !target(install) 308 309.if !target(load) 310load: ${PROG} 311 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 312.endif 313 314.if !target(unload) 315unload: 316 ${KMODUNLOAD} -v ${PROG} 317.endif 318 319# Generate options files that otherwise would be built 320# in substantially similar ways through the tree. Move 321# the code here when they all produce identical results 322# (or should) 323.if !defined(KERNBUILDDIR) 324opt_bpf.h: 325 echo "#define DEV_BPF 1" > ${.TARGET} 326.if ${MK_INET_SUPPORT} != "no" 327opt_inet.h: 328 @echo "#define INET 1" > ${.TARGET} 329 @echo "#define TCP_OFFLOAD 1" >> ${.TARGET} 330.endif 331.if ${MK_INET6_SUPPORT} != "no" 332opt_inet6.h: 333 @echo "#define INET6 1" > ${.TARGET} 334.endif 335opt_mrouting.h: 336 echo "#define MROUTING 1" > ${.TARGET} 337opt_natm.h: 338 echo "#define NATM 1" > ${.TARGET} 339opt_scsi.h: 340 echo "#define SCSI_DELAY 15000" > ${.TARGET} 341opt_wlan.h: 342 echo "#define IEEE80211_DEBUG 1" > ${.TARGET} 343 echo "#define IEEE80211_AMPDU_AGE 1" >> ${.TARGET} 344 echo "#define IEEE80211_SUPPORT_MESH 1" >> ${.TARGET} 345.endif 346 347.if defined(KERNBUILDDIR) 348.PATH: ${KERNBUILDDIR} 349CFLAGS+= -I${KERNBUILDDIR} 350.for _src in ${SRCS:Mopt_*.h} 351CLEANFILES+= ${_src} 352.if !target(${_src}) 353${_src}: 354 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 355.endif 356.endfor 357.else 358.for _src in ${SRCS:Mopt_*.h} 359CLEANFILES+= ${_src} 360.if !target(${_src}) 361${_src}: 362 :> ${.TARGET} 363.endif 364.endfor 365.endif 366 367# Respect configuration-specific C flags. 368CFLAGS+= ${CONF_CFLAGS} 369 370MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 371 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 372 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 373 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 374 dev/mbox/mbox_if.m dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 375 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 376 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 377 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 378 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 379 dev/sound/pci/hda/hdac_if.m \ 380 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 381 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 382 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 383 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 384 kern/bus_if.m kern/clock_if.m \ 385 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 386 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 387 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 388 389.for _srcsrc in ${MFILES} 390.for _ext in c h 391.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 392CLEANFILES+= ${_src} 393.if !target(${_src}) 394${_src}: ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} 395 ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} -${_ext} 396.endif 397.endfor # _src 398.endfor # _ext 399.endfor # _srcsrc 400 401.if !empty(SRCS:Mvnode_if.c) 402CLEANFILES+= vnode_if.c 403vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src 404 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c 405.endif 406 407.if !empty(SRCS:Mvnode_if.h) 408CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 409vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \ 410 ${SYSDIR}/kern/vnode_if.src 411vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 412 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h 413vnode_if_newproto.h: 414 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p 415vnode_if_typedef.h: 416 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q 417.endif 418 419.for _i in mii pccard 420.if !empty(SRCS:M${_i}devs.h) 421CLEANFILES+= ${_i}devs.h 422${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 423 ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 424.endif 425.endfor # _i 426 427.if !empty(SRCS:Musbdevs.h) 428CLEANFILES+= usbdevs.h 429usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 430 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h 431.endif 432 433.if !empty(SRCS:Musbdevs_data.h) 434CLEANFILES+= usbdevs_data.h 435usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 436 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d 437.endif 438 439.if !empty(SRCS:Macpi_quirks.h) 440CLEANFILES+= acpi_quirks.h 441acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 442 ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 443.endif 444 445.if !empty(SRCS:Massym.s) 446CLEANFILES+= assym.s genassym.o 447assym.s: genassym.o 448.if defined(KERNBUILDDIR) 449genassym.o: opt_global.h 450.endif 451assym.s: ${SYSDIR}/kern/genassym.sh 452 sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET} 453genassym.o: ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 454genassym.o: ${SRCS:Mopt_*.h} 455 ${CC} -c ${CFLAGS:N-fno-common} \ 456 ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 457.endif 458 459lint: ${SRCS} 460 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 461 462.if defined(KERNBUILDDIR) 463${OBJS}: opt_global.h 464.endif 465 466.include <bsd.dep.mk> 467 468cleandepend: cleanilinks 469# .depend needs include links so we remove them only together. 470cleanilinks: 471 rm -f ${_ILINKS} 472 473.if !exists(${.OBJDIR}/${DEPENDFILE}) 474${OBJS}: ${SRCS:M*.h} 475.endif 476 477.include <bsd.obj.mk> 478.include "kern.mk" 479