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 225 226all: objwarn ${PROG} 227 228beforedepend: ${_ILINKS} 229 230# Ensure that the links exist without depending on it when it exists which 231# causes all the modules to be rebuilt when the directory pointed to changes. 232.for _link in ${_ILINKS} 233.if !exists(${.OBJDIR}/${_link}) 234${OBJS}: ${.OBJDIR}/${_link} 235.endif 236.endfor 237 238# Search for kernel source tree in standard places. 239.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 240.if !defined(SYSDIR) && exists(${_dir}/kern/) 241SYSDIR= ${_dir} 242.endif 243.endfor 244.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 245.error "can't find kernel source tree" 246.endif 247 248.for _link in ${_ILINKS} 249.PHONY: ${_link} 250${_link}: ${.OBJDIR}/${_link} 251 252${.OBJDIR}/${_link}: 253 @case ${.TARGET:T} in \ 254 machine) \ 255 path=${SYSDIR}/${MACHINE}/include ;; \ 256 @) \ 257 path=${SYSDIR} ;; \ 258 *) \ 259 path=${SYSDIR}/${.TARGET:T}/include ;; \ 260 esac ; \ 261 path=`(cd $$path && /bin/pwd)` ; \ 262 ${ECHO} ${.TARGET:T} "->" $$path ; \ 263 ln -sf $$path ${.TARGET:T} 264.endfor 265 266CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 267 268.if defined(DEBUG_FLAGS) 269CLEANFILES+= ${FULLPROG} ${PROG}.symbols 270.endif 271 272.if !target(install) 273 274_INSTALLFLAGS:= ${INSTALLFLAGS} 275.for ie in ${INSTALLFLAGS_EDIT} 276_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 277.endfor 278 279.if !target(realinstall) 280realinstall: _kmodinstall 281.ORDER: beforeinstall _kmodinstall 282_kmodinstall: 283 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 284 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 285.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 286 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 287 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 288.endif 289 290.include <bsd.links.mk> 291 292.if !defined(NO_XREF) 293afterinstall: _kldxref 294.ORDER: realinstall _kldxref 295.ORDER: _installlinks _kldxref 296_kldxref: 297 @if type kldxref >/dev/null 2>&1; then \ 298 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 299 kldxref ${DESTDIR}${KMODDIR}; \ 300 fi 301.endif 302.endif # !target(realinstall) 303 304.endif # !target(install) 305 306.if !target(load) 307load: ${PROG} 308 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 309.endif 310 311.if !target(unload) 312unload: 313 ${KMODUNLOAD} -v ${PROG} 314.endif 315 316.if defined(KERNBUILDDIR) 317.PATH: ${KERNBUILDDIR} 318CFLAGS+= -I${KERNBUILDDIR} 319.for _src in ${SRCS:Mopt_*.h} 320CLEANFILES+= ${_src} 321.if !target(${_src}) 322${_src}: 323 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 324.endif 325.endfor 326.else 327.for _src in ${SRCS:Mopt_*.h} 328CLEANFILES+= ${_src} 329.if !target(${_src}) 330${_src}: 331 :> ${.TARGET} 332.endif 333.endfor 334.endif 335 336# Respect configuration-specific C flags. 337CFLAGS+= ${CONF_CFLAGS} 338 339MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 340 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 341 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 342 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 343 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 344 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 345 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 346 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 347 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 348 dev/sound/pci/hda/hdac_if.m \ 349 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 350 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 351 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 352 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 353 kern/bus_if.m kern/clock_if.m \ 354 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 355 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 356 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 357 358.for _srcsrc in ${MFILES} 359.for _ext in c h 360.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 361CLEANFILES+= ${_src} 362.if !target(${_src}) 363.if !exists(@) 364${_src}: @ 365.else 366${_src}: @/tools/makeobjops.awk @/${_srcsrc} 367.endif 368 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 369.endif 370.endfor # _src 371.endfor # _ext 372.endfor # _srcsrc 373 374.if !empty(SRCS:Mvnode_if.c) 375CLEANFILES+= vnode_if.c 376.if !exists(@) 377vnode_if.c: @ 378.else 379vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 380.endif 381 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 382.endif 383 384.if !empty(SRCS:Mvnode_if.h) 385CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 386.if !exists(@) 387vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 388.else 389vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 390 @/kern/vnode_if.src 391.endif 392vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 393 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 394vnode_if_newproto.h: 395 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 396vnode_if_typedef.h: 397 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 398.endif 399 400.for _i in mii pccard 401.if !empty(SRCS:M${_i}devs.h) 402CLEANFILES+= ${_i}devs.h 403.if !exists(@) 404${_i}devs.h: @ 405.else 406${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 407.endif 408 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 409.endif 410.endfor # _i 411 412.if !empty(SRCS:Musbdevs.h) 413CLEANFILES+= usbdevs.h 414.if !exists(@) 415usbdevs.h: @ 416.else 417usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 418.endif 419 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 420.endif 421 422.if !empty(SRCS:Musbdevs_data.h) 423CLEANFILES+= usbdevs_data.h 424.if !exists(@) 425usbdevs_data.h: @ 426.else 427usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 428.endif 429 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 430.endif 431 432.if !empty(SRCS:Macpi_quirks.h) 433CLEANFILES+= acpi_quirks.h 434.if !exists(@) 435acpi_quirks.h: @ 436.else 437acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 438.endif 439 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 440.endif 441 442.if !empty(SRCS:Massym.s) 443CLEANFILES+= assym.s genassym.o 444assym.s: genassym.o 445.if defined(KERNBUILDDIR) 446genassym.o: opt_global.h 447.endif 448.if !exists(@) 449assym.s: @ 450.else 451assym.s: @/kern/genassym.sh 452.endif 453 sh @/kern/genassym.sh genassym.o > ${.TARGET} 454.if exists(@) 455genassym.o: @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 456.endif 457genassym.o: @ machine ${SRCS:Mopt_*.h} 458 ${CC} -c ${CFLAGS:N-fno-common} \ 459 @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 460.endif 461 462lint: ${SRCS} 463 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 464 465.if defined(KERNBUILDDIR) 466${OBJS}: opt_global.h 467.endif 468 469.include <bsd.dep.mk> 470 471cleandepend: cleanilinks 472# .depend needs include links so we remove them only together. 473cleanilinks: 474 rm -f ${_ILINKS} 475 476.if !exists(${.OBJDIR}/${DEPENDFILE}) 477${OBJS}: ${SRCS:M*.h} 478.endif 479 480.include <bsd.obj.mk> 481.include "kern.mk" 482