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