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, ${KMOD}.ko is used. 36# 37# SRCS List of source files. 38# 39# FIRMWS List of firmware images in format filename:shortname:version 40# 41# FIRMWARE_LICENSE 42# Set to the name of the license the user has to agree on in 43# order to use this firmware. See /usr/share/doc/legal 44# 45# DESTDIR The tree where the module gets installed. [not set] 46# 47# +++ targets +++ 48# 49# install: 50# install the kernel module; if the Makefile 51# does not itself define the target install, the targets 52# beforeinstall and afterinstall may also be used to cause 53# actions immediately before and after the install target 54# is executed. 55# 56# load: 57# Load a module. 58# 59# unload: 60# Unload a module. 61# 62 63# backwards compat option for older systems. 64MACHINE_CPUARCH?=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb)?/arm/:C/powerpc64/powerpc/} 65 66AWK?= awk 67KMODLOAD?= /sbin/kldload 68KMODUNLOAD?= /sbin/kldunload 69OBJCOPY?= objcopy 70 71.if defined(KMODDEPS) 72.error "Do not use KMODDEPS on 5.0+; use MODULE_VERSION/MODULE_DEPEND" 73.endif 74 75.include <src.opts.mk> 76.include <bsd.init.mk> 77.include <bsd.compiler.mk> 78 79.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 80 81# amd64 and mips use direct linking for kmod, all others use shared binaries 82.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 83__KLD_SHARED=yes 84.else 85__KLD_SHARED=no 86.endif 87 88.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 89CFLAGS+= -fno-strict-aliasing 90.endif 91WERROR?= -Werror 92CFLAGS+= ${WERROR} 93CFLAGS+= -D_KERNEL 94CFLAGS+= -DKLD_MODULE 95 96# Don't use any standard or source-relative include directories. 97CSTD= c99 98NOSTDINC= -nostdinc 99CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 100.if defined(KERNBUILDDIR) 101CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 102.endif 103 104# Add -I paths for system headers. Individual module makefiles don't 105# need any -I paths for this. Similar defaults for .PATH can't be 106# set because there are no standard paths for non-headers. 107CFLAGS+= -I. -I@ 108 109# Add -I path for altq headers as they are included via net/if_var.h 110# for example. 111CFLAGS+= -I@/contrib/altq 112 113.if ${COMPILER_TYPE} != "clang" 114CFLAGS+= -finline-limit=${INLINE_LIMIT} 115CFLAGS+= --param inline-unit-growth=100 116CFLAGS+= --param large-function-growth=1000 117.endif 118 119# Disallow common variables, and if we end up with commons from 120# somewhere unexpected, allocate storage for them in the module itself. 121CFLAGS+= -fno-common 122LDFLAGS+= -d -warn-common 123 124CFLAGS+= ${DEBUG_FLAGS} 125.if ${MACHINE_CPUARCH} == amd64 126CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 127.endif 128 129.if ${MACHINE_CPUARCH} == powerpc 130CFLAGS+= -mlongcall -fno-omit-frame-pointer 131.endif 132 133.if ${MACHINE_CPUARCH} == mips 134CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 135.endif 136 137.if defined(DEBUG) || defined(DEBUG_FLAGS) 138CTFFLAGS+= -g 139.endif 140 141.if defined(FIRMWS) 142.if !exists(@) 143${KMOD:S/$/.c/}: @ 144.else 145${KMOD:S/$/.c/}: @/tools/fw_stub.awk 146.endif 147 ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 148 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 149 150SRCS+= ${KMOD:S/$/.c/} 151CLEANFILES+= ${KMOD:S/$/.c/} 152 153.for _firmw in ${FIRMWS} 154${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 155 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 156 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 157 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 158 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 159 else \ 160 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 161 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 162 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 163 rm ${_firmw:C/\:.*$//}; \ 164 fi 165 166OBJS+= ${_firmw:C/\:.*$/.fwo/} 167.endfor 168.endif 169 170OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 171 172.if !defined(PROG) 173PROG= ${KMOD}.ko 174.endif 175 176.if !defined(DEBUG_FLAGS) 177FULLPROG= ${PROG} 178.else 179FULLPROG= ${PROG}.debug 180${PROG}: ${FULLPROG} ${PROG}.symbols 181 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 182 ${FULLPROG} ${.TARGET} 183${PROG}.symbols: ${FULLPROG} 184 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 185.endif 186 187.if ${__KLD_SHARED} == yes 188${FULLPROG}: ${KMOD}.kld 189 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 190.if !defined(DEBUG_FLAGS) 191 ${OBJCOPY} --strip-debug ${.TARGET} 192.endif 193.endif 194 195EXPORT_SYMS?= NO 196.if ${EXPORT_SYMS} != YES 197CLEANFILES+= export_syms 198.endif 199 200.if ${__KLD_SHARED} == yes 201${KMOD}.kld: ${OBJS} 202.else 203${FULLPROG}: ${OBJS} 204.endif 205 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 206.if defined(MK_CTF) && ${MK_CTF} != "no" 207 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 208.endif 209.if defined(EXPORT_SYMS) 210.if ${EXPORT_SYMS} != YES 211.if ${EXPORT_SYMS} == NO 212 :> export_syms 213.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 214 echo ${EXPORT_SYMS} > export_syms 215.else 216 grep -v '^#' < ${EXPORT_SYMS} > export_syms 217.endif 218 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 219 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 220.endif 221.endif 222.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 223 ${OBJCOPY} --strip-debug ${.TARGET} 224.endif 225 226_ILINKS=@ machine 227.if ${MACHINE} != ${MACHINE_CPUARCH} 228_ILINKS+=${MACHINE_CPUARCH} 229.endif 230.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 231_ILINKS+=x86 232.endif 233 234all: objwarn ${PROG} 235 236beforedepend: ${_ILINKS} 237 238# Ensure that the links exist without depending on it when it exists which 239# causes all the modules to be rebuilt when the directory pointed to changes. 240.for _link in ${_ILINKS} 241.if !exists(${.OBJDIR}/${_link}) 242${OBJS}: ${.OBJDIR}/${_link} 243.endif 244.endfor 245 246# Search for kernel source tree in standard places. 247.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 248.if !defined(SYSDIR) && exists(${_dir}/kern/) 249SYSDIR= ${_dir} 250.endif 251.endfor 252.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 253.error "can't find kernel source tree" 254.endif 255 256.NOPATH: ${_ILINKS} 257 258${_ILINKS}: 259 @case ${.TARGET} in \ 260 machine) \ 261 path=${SYSDIR}/${MACHINE}/include ;; \ 262 @) \ 263 path=${SYSDIR} ;; \ 264 *) \ 265 path=${SYSDIR}/${.TARGET:T}/include ;; \ 266 esac ; \ 267 path=`(cd $$path && /bin/pwd)` ; \ 268 ${ECHO} ${.TARGET:T} "->" $$path ; \ 269 ln -sf $$path ${.TARGET:T} 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