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# Note: we're really bsd.kmod.mk, so we have to allow src.opts.mk to be 69# optional. Include it if we can so we can get /etc/src.conf changes, 70# if we're in the tree. If we can't include it that's OK. kern.opts.mk 71# has all the kernel options in it, and should be included after src.opts.mk 72# so it picks everything up. 73.sinclude <src.opts.mk> 74.include <bsd.init.mk> 75.include <bsd.compiler.mk> 76.include "kern.opts.mk" 77 78.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 79 80# amd64 and mips use direct linking for kmod, all others use shared binaries 81.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 82__KLD_SHARED=yes 83.else 84__KLD_SHARED=no 85.endif 86 87.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 88CFLAGS+= -fno-strict-aliasing 89.endif 90WERROR?= -Werror 91CFLAGS+= ${WERROR} 92CFLAGS+= -D_KERNEL 93CFLAGS+= -DKLD_MODULE 94 95# Don't use any standard or source-relative include directories. 96CSTD= c99 97NOSTDINC= -nostdinc 98CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 99.if defined(KERNBUILDDIR) 100CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 101.endif 102 103# Add -I paths for system headers. Individual module makefiles don't 104# need any -I paths for this. Similar defaults for .PATH can't be 105# set because there are no standard paths for non-headers. 106CFLAGS+= -I. -I@ 107 108# Add -I path for altq headers as they are included via net/if_var.h 109# for example. 110CFLAGS+= -I@/contrib/altq 111 112CFLAGS.gcc+= -finline-limit=${INLINE_LIMIT} 113CFLAGS.gcc+= --param inline-unit-growth=100 114CFLAGS.gcc+= --param large-function-growth=1000 115 116# Disallow common variables, and if we end up with commons from 117# somewhere unexpected, allocate storage for them in the module itself. 118CFLAGS+= -fno-common 119LDFLAGS+= -d -warn-common 120 121CFLAGS+= ${DEBUG_FLAGS} 122.if ${MACHINE_CPUARCH} == amd64 123CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 124.endif 125 126.if ${MACHINE_CPUARCH} == powerpc 127CFLAGS+= -mlongcall -fno-omit-frame-pointer 128.endif 129 130.if ${MACHINE_CPUARCH} == mips 131CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 132.endif 133 134.if defined(DEBUG) || defined(DEBUG_FLAGS) 135CTFFLAGS+= -g 136.endif 137 138.if defined(FIRMWS) 139.if !exists(@) 140${KMOD:S/$/.c/}: @ 141.else 142${KMOD:S/$/.c/}: @/tools/fw_stub.awk 143.endif 144 ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 145 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 146 147SRCS+= ${KMOD:S/$/.c/} 148CLEANFILES+= ${KMOD:S/$/.c/} 149 150.for _firmw in ${FIRMWS} 151${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 152 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 153 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 154 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 155 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 156 else \ 157 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 158 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 159 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 160 rm ${_firmw:C/\:.*$//}; \ 161 fi 162 163OBJS+= ${_firmw:C/\:.*$/.fwo/} 164.endfor 165.endif 166 167OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 168 169.if !defined(PROG) 170PROG= ${KMOD}.ko 171.endif 172 173.if !defined(DEBUG_FLAGS) 174FULLPROG= ${PROG} 175.else 176FULLPROG= ${PROG}.debug 177${PROG}: ${FULLPROG} ${PROG}.symbols 178 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 179 ${FULLPROG} ${.TARGET} 180${PROG}.symbols: ${FULLPROG} 181 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 182.endif 183 184.if ${__KLD_SHARED} == yes 185${FULLPROG}: ${KMOD}.kld 186 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 187.if !defined(DEBUG_FLAGS) 188 ${OBJCOPY} --strip-debug ${.TARGET} 189.endif 190.endif 191 192EXPORT_SYMS?= NO 193.if ${EXPORT_SYMS} != YES 194CLEANFILES+= export_syms 195.endif 196 197.if ${__KLD_SHARED} == yes 198${KMOD}.kld: ${OBJS} 199.else 200${FULLPROG}: ${OBJS} 201.endif 202 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 203.if ${MK_CTF} != "no" 204 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 205.endif 206.if defined(EXPORT_SYMS) 207.if ${EXPORT_SYMS} != YES 208.if ${EXPORT_SYMS} == NO 209 :> export_syms 210.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 211 echo ${EXPORT_SYMS} > export_syms 212.else 213 grep -v '^#' < ${EXPORT_SYMS} > export_syms 214.endif 215 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 216 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 217.endif 218.endif 219.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 220 ${OBJCOPY} --strip-debug ${.TARGET} 221.endif 222 223_ILINKS=@ machine 224.if ${MACHINE} != ${MACHINE_CPUARCH} 225_ILINKS+=${MACHINE_CPUARCH} 226.endif 227.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 228_ILINKS+=x86 229.endif 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} ;; \ 263 *) \ 264 path=${SYSDIR}/${.TARGET:T}/include ;; \ 265 esac ; \ 266 path=`(cd $$path && /bin/pwd)` ; \ 267 ${ECHO} ${.TARGET:T} "->" $$path ; \ 268 ln -sf $$path ${.TARGET:T} 269.endfor 270 271CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 272 273.if defined(DEBUG_FLAGS) 274CLEANFILES+= ${FULLPROG} ${PROG}.symbols 275.endif 276 277.if !target(install) 278 279_INSTALLFLAGS:= ${INSTALLFLAGS} 280.for ie in ${INSTALLFLAGS_EDIT} 281_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 282.endfor 283 284.if !target(realinstall) 285realinstall: _kmodinstall 286.ORDER: beforeinstall _kmodinstall 287_kmodinstall: 288 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 289 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 290.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 291 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 292 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 293.endif 294 295.include <bsd.links.mk> 296 297.if !defined(NO_XREF) 298afterinstall: _kldxref 299.ORDER: realinstall _kldxref 300.ORDER: _installlinks _kldxref 301_kldxref: 302 @if type kldxref >/dev/null 2>&1; then \ 303 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 304 kldxref ${DESTDIR}${KMODDIR}; \ 305 fi 306.endif 307.endif # !target(realinstall) 308 309.endif # !target(install) 310 311.if !target(load) 312load: ${PROG} 313 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 314.endif 315 316.if !target(unload) 317unload: 318 ${KMODUNLOAD} -v ${PROG} 319.endif 320 321.if defined(KERNBUILDDIR) 322.PATH: ${KERNBUILDDIR} 323CFLAGS+= -I${KERNBUILDDIR} 324.for _src in ${SRCS:Mopt_*.h} 325CLEANFILES+= ${_src} 326.if !target(${_src}) 327${_src}: 328 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 329.endif 330.endfor 331.else 332.for _src in ${SRCS:Mopt_*.h} 333CLEANFILES+= ${_src} 334.if !target(${_src}) 335${_src}: 336 :> ${.TARGET} 337.endif 338.endfor 339.endif 340 341# Respect configuration-specific C flags. 342CFLAGS+= ${CONF_CFLAGS} 343 344MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 345 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 346 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 347 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 348 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 349 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 350 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 351 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 352 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 353 dev/sound/pci/hda/hdac_if.m \ 354 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 355 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 356 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 357 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 358 kern/bus_if.m kern/clock_if.m \ 359 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 360 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 361 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 362 363.for _srcsrc in ${MFILES} 364.for _ext in c h 365.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 366CLEANFILES+= ${_src} 367.if !target(${_src}) 368.if !exists(@) 369${_src}: @ 370.else 371${_src}: @/tools/makeobjops.awk @/${_srcsrc} 372.endif 373 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 374.endif 375.endfor # _src 376.endfor # _ext 377.endfor # _srcsrc 378 379.if !empty(SRCS:Mvnode_if.c) 380CLEANFILES+= vnode_if.c 381.if !exists(@) 382vnode_if.c: @ 383.else 384vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 385.endif 386 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 387.endif 388 389.if !empty(SRCS:Mvnode_if.h) 390CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 391.if !exists(@) 392vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 393.else 394vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 395 @/kern/vnode_if.src 396.endif 397vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 398 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 399vnode_if_newproto.h: 400 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 401vnode_if_typedef.h: 402 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 403.endif 404 405.for _i in mii pccard 406.if !empty(SRCS:M${_i}devs.h) 407CLEANFILES+= ${_i}devs.h 408.if !exists(@) 409${_i}devs.h: @ 410.else 411${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 412.endif 413 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 414.endif 415.endfor # _i 416 417.if !empty(SRCS:Musbdevs.h) 418CLEANFILES+= usbdevs.h 419.if !exists(@) 420usbdevs.h: @ 421.else 422usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 423.endif 424 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 425.endif 426 427.if !empty(SRCS:Musbdevs_data.h) 428CLEANFILES+= usbdevs_data.h 429.if !exists(@) 430usbdevs_data.h: @ 431.else 432usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 433.endif 434 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 435.endif 436 437.if !empty(SRCS:Macpi_quirks.h) 438CLEANFILES+= acpi_quirks.h 439.if !exists(@) 440acpi_quirks.h: @ 441.else 442acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 443.endif 444 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 445.endif 446 447.if !empty(SRCS:Massym.s) 448CLEANFILES+= assym.s genassym.o 449assym.s: genassym.o 450.if defined(KERNBUILDDIR) 451genassym.o: opt_global.h 452.endif 453.if !exists(@) 454assym.s: @ 455.else 456assym.s: @/kern/genassym.sh 457.endif 458 sh @/kern/genassym.sh genassym.o > ${.TARGET} 459.if exists(@) 460genassym.o: @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 461.endif 462genassym.o: @ machine ${SRCS:Mopt_*.h} 463 ${CC} -c ${CFLAGS:N-fno-common} \ 464 @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 465.endif 466 467lint: ${SRCS} 468 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 469 470.if defined(KERNBUILDDIR) 471${OBJS}: opt_global.h 472.endif 473 474.include <bsd.dep.mk> 475 476cleandepend: cleanilinks 477# .depend needs include links so we remove them only together. 478cleanilinks: 479 rm -f ${_ILINKS} 480 481.if !exists(${.OBJDIR}/${DEPENDFILE}) 482${OBJS}: ${SRCS:M*.h} 483.endif 484 485.include <bsd.obj.mk> 486.include "kern.mk" 487