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.include "config.mk" 74 75.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 76 77# amd64 and mips use direct linking for kmod, all others use shared binaries 78.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 79__KLD_SHARED=yes 80.else 81__KLD_SHARED=no 82.endif 83 84.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 85CFLAGS+= -fno-strict-aliasing 86.endif 87WERROR?= -Werror 88CFLAGS+= ${WERROR} 89CFLAGS+= -D_KERNEL 90CFLAGS+= -DKLD_MODULE 91 92# Don't use any standard or source-relative include directories. 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+= -fms-extensions 110CFLAGS.gcc+= --param inline-unit-growth=100 111CFLAGS.gcc+= --param large-function-growth=1000 112 113# Disallow common variables, and if we end up with commons from 114# somewhere unexpected, allocate storage for them in the module itself. 115CFLAGS+= -fno-common 116LDFLAGS+= -d -warn-common 117 118CFLAGS+= ${DEBUG_FLAGS} 119.if ${MACHINE_CPUARCH} == amd64 120CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 121.endif 122 123# Temporary workaround for PR 196407, which contains the fascinating details. 124# Don't allow clang to use fpu instructions or registers in kernel modules. 125.if ${MACHINE_CPUARCH} == arm 126CFLAGS.clang+= -mllvm -arm-use-movt=0 127CFLAGS.clang+= -mfpu=none 128CFLAGS+= -funwind-tables 129.endif 130 131.if ${MACHINE_CPUARCH} == powerpc 132CFLAGS+= -mlongcall -fno-omit-frame-pointer 133.endif 134 135.if ${MACHINE_CPUARCH} == mips 136CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 137.endif 138 139.if defined(DEBUG) || defined(DEBUG_FLAGS) 140CTFFLAGS+= -g 141.endif 142 143.if defined(FIRMWS) 144${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk 145 ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 146 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 147 148SRCS+= ${KMOD:S/$/.c/} 149CLEANFILES+= ${KMOD:S/$/.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 164OBJS+= ${_firmw:C/\:.*$/.fwo/} 165.endfor 166.endif 167 168# Conditionally include SRCS based on kernel config options. 169.for _o in ${KERN_OPTS} 170SRCS+=${SRCS.${_o}} 171.endfor 172 173OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 174 175.if !defined(PROG) 176PROG= ${KMOD}.ko 177.endif 178 179.if !defined(DEBUG_FLAGS) 180FULLPROG= ${PROG} 181.else 182FULLPROG= ${PROG}.debug 183${PROG}: ${FULLPROG} ${PROG}.symbols 184 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 185 ${FULLPROG} ${.TARGET} 186${PROG}.symbols: ${FULLPROG} 187 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 188.endif 189 190.if ${__KLD_SHARED} == yes 191${FULLPROG}: ${KMOD}.kld 192 ${LD} -Bshareable ${_LDFLAGS} -o ${.TARGET} ${KMOD}.kld 193.if !defined(DEBUG_FLAGS) 194 ${OBJCOPY} --strip-debug ${.TARGET} 195.endif 196.endif 197 198EXPORT_SYMS?= NO 199.if ${EXPORT_SYMS} != YES 200CLEANFILES+= export_syms 201.endif 202 203.if ${__KLD_SHARED} == yes 204${KMOD}.kld: ${OBJS} 205.else 206${FULLPROG}: ${OBJS} 207.endif 208 ${LD} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 209.if ${MK_CTF} != "no" 210 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 211.endif 212.if defined(EXPORT_SYMS) 213.if ${EXPORT_SYMS} != YES 214.if ${EXPORT_SYMS} == NO 215 :> export_syms 216.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 217 echo ${EXPORT_SYMS} > export_syms 218.else 219 grep -v '^#' < ${EXPORT_SYMS} > export_syms 220.endif 221 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 222 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 223.endif 224.endif 225.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 226 ${OBJCOPY} --strip-debug ${.TARGET} 227.endif 228 229_ILINKS=machine 230.if ${MACHINE} != ${MACHINE_CPUARCH} 231_ILINKS+=${MACHINE_CPUARCH} 232.endif 233.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 234_ILINKS+=x86 235.endif 236CLEANFILES+=${_ILINKS} 237 238all: objwarn ${PROG} 239 240beforedepend: ${_ILINKS} 241 242# Ensure that the links exist without depending on it when it exists which 243# causes all the modules to be rebuilt when the directory pointed to changes. 244.for _link in ${_ILINKS} 245.if !exists(${.OBJDIR}/${_link}) 246${OBJS}: ${.OBJDIR}/${_link} 247.endif 248.endfor 249 250# Search for kernel source tree in standard places. 251.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 252.if !defined(SYSDIR) && exists(${_dir}/kern/) 253SYSDIR= ${_dir} 254.endif 255.endfor 256.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 257.error "can't find kernel source tree" 258.endif 259 260.for _link in ${_ILINKS} 261.PHONY: ${_link} 262${_link}: ${.OBJDIR}/${_link} 263 264${.OBJDIR}/${_link}: 265 @case ${.TARGET:T} in \ 266 machine) \ 267 path=${SYSDIR}/${MACHINE}/include ;; \ 268 *) \ 269 path=${SYSDIR}/${.TARGET:T}/include ;; \ 270 esac ; \ 271 path=`(cd $$path && /bin/pwd)` ; \ 272 ${ECHO} ${.TARGET:T} "->" $$path ; \ 273 ln -sf $$path ${.TARGET:T} 274.endfor 275 276CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 277 278.if defined(DEBUG_FLAGS) 279CLEANFILES+= ${FULLPROG} ${PROG}.symbols 280.endif 281 282.if !target(install) 283 284_INSTALLFLAGS:= ${INSTALLFLAGS} 285.for ie in ${INSTALLFLAGS_EDIT} 286_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 287.endfor 288 289.if !target(realinstall) 290realinstall: _kmodinstall 291.ORDER: beforeinstall _kmodinstall 292_kmodinstall: 293 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 294 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 295.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 296 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 297 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 298.endif 299 300.include <bsd.links.mk> 301 302.if !defined(NO_XREF) 303afterinstall: _kldxref 304.ORDER: realinstall _kldxref 305.ORDER: _installlinks _kldxref 306_kldxref: 307 @if type kldxref >/dev/null 2>&1; then \ 308 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 309 kldxref ${DESTDIR}${KMODDIR}; \ 310 fi 311.endif 312.endif # !target(realinstall) 313 314.endif # !target(install) 315 316.if !target(load) 317load: ${PROG} 318 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 319.endif 320 321.if !target(unload) 322unload: 323 ${KMODUNLOAD} -v ${PROG} 324.endif 325 326.if defined(KERNBUILDDIR) 327.PATH: ${KERNBUILDDIR} 328CFLAGS+= -I${KERNBUILDDIR} 329.for _src in ${SRCS:Mopt_*.h} 330CLEANFILES+= ${_src} 331.if !target(${_src}) 332${_src}: 333 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 334.endif 335.endfor 336.else 337.for _src in ${SRCS:Mopt_*.h} 338CLEANFILES+= ${_src} 339.if !target(${_src}) 340${_src}: 341 :> ${.TARGET} 342.endif 343.endfor 344.endif 345 346# Respect configuration-specific C flags. 347CFLAGS+= ${CONF_CFLAGS} 348 349MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 350 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 351 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 352 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 353 dev/mbox/mbox_if.m dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 354 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 355 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 356 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 357 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 358 dev/sound/pci/hda/hdac_if.m \ 359 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 360 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 361 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 362 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 363 kern/bus_if.m kern/clock_if.m \ 364 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 365 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 366 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 367 368.for _srcsrc in ${MFILES} 369.for _ext in c h 370.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 371CLEANFILES+= ${_src} 372.if !target(${_src}) 373${_src}: ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} 374 ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${SYSDIR}/${_srcsrc} -${_ext} 375.endif 376.endfor # _src 377.endfor # _ext 378.endfor # _srcsrc 379 380.if !empty(SRCS:Mvnode_if.c) 381CLEANFILES+= vnode_if.c 382vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src 383 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c 384.endif 385 386.if !empty(SRCS:Mvnode_if.h) 387CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 388vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \ 389 ${SYSDIR}/kern/vnode_if.src 390vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 391 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h 392vnode_if_newproto.h: 393 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p 394vnode_if_typedef.h: 395 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q 396.endif 397 398.for _i in mii pccard 399.if !empty(SRCS:M${_i}devs.h) 400CLEANFILES+= ${_i}devs.h 401${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 402 ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs 403.endif 404.endfor # _i 405 406.if !empty(SRCS:Musbdevs.h) 407CLEANFILES+= usbdevs.h 408usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 409 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h 410.endif 411 412.if !empty(SRCS:Musbdevs_data.h) 413CLEANFILES+= usbdevs_data.h 414usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs 415 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d 416.endif 417 418.if !empty(SRCS:Macpi_quirks.h) 419CLEANFILES+= acpi_quirks.h 420acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 421 ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks 422.endif 423 424.if !empty(SRCS:Massym.s) 425CLEANFILES+= assym.s genassym.o 426assym.s: genassym.o 427.if defined(KERNBUILDDIR) 428genassym.o: opt_global.h 429.endif 430assym.s: ${SYSDIR}/kern/genassym.sh 431 sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET} 432genassym.o: ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 433genassym.o: ${SRCS:Mopt_*.h} 434 ${CC} -c ${CFLAGS:N-fno-common} \ 435 ${SYSDIR}/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 436.endif 437 438lint: ${SRCS} 439 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 440 441.if defined(KERNBUILDDIR) 442${OBJS}: opt_global.h 443.endif 444 445.include <bsd.dep.mk> 446 447cleandepend: cleanilinks 448# .depend needs include links so we remove them only together. 449cleanilinks: 450 rm -f ${_ILINKS} 451 452.if !exists(${.OBJDIR}/${DEPENDFILE}) 453${OBJS}: ${SRCS:M*.h} 454.endif 455 456.include <bsd.obj.mk> 457.include "kern.mk" 458