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/mipse[lb]/mips/:C/armeb/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 <bsd.init.mk> 76.sinclude <bsd.compiler.mk> 77 78# backwards compat option for older systems. 79COMPILER_TYPE?="gcc" 80 81.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 82 83MK_CLANG_IS_CC ?= no 84 85# amd64 and mips use direct linking for kmod, all others use shared binaries 86.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 87__KLD_SHARED=yes 88.else 89__KLD_SHARED=no 90.endif 91 92.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 93CFLAGS+= -fno-strict-aliasing 94.endif 95WERROR?= -Werror 96CFLAGS+= ${WERROR} 97CFLAGS+= -D_KERNEL 98CFLAGS+= -DKLD_MODULE 99 100# Don't use any standard or source-relative include directories. 101CSTD= c99 102NOSTDINC= -nostdinc 103CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 104.if defined(KERNBUILDDIR) 105CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 106.endif 107 108# Add -I paths for system headers. Individual module makefiles don't 109# need any -I paths for this. Similar defaults for .PATH can't be 110# set because there are no standard paths for non-headers. 111CFLAGS+= -I. -I@ 112 113# Add -I path for altq headers as they are included via net/if_var.h 114# for example. 115CFLAGS+= -I@/contrib/altq 116 117.if ${COMPILER_TYPE} != "clang" 118CFLAGS+= -finline-limit=${INLINE_LIMIT} 119CFLAGS+= --param inline-unit-growth=100 120CFLAGS+= --param large-function-growth=1000 121.endif 122 123# Disallow common variables, and if we end up with commons from 124# somewhere unexpected, allocate storage for them in the module itself. 125CFLAGS+= -fno-common 126LDFLAGS+= -d -warn-common 127 128CFLAGS+= ${DEBUG_FLAGS} 129.if ${MACHINE_CPUARCH} == amd64 130CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 131.endif 132 133.if ${MACHINE_CPUARCH} == powerpc 134CFLAGS+= -mlongcall -fno-omit-frame-pointer 135.endif 136 137.if ${MACHINE_CPUARCH} == mips 138CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 139.endif 140 141.if defined(DEBUG) || defined(DEBUG_FLAGS) 142CTFFLAGS+= -g 143.endif 144 145.if defined(FIRMWS) 146.if !exists(@) 147${KMOD:S/$/.c/}: @ 148.else 149${KMOD:S/$/.c/}: @/tools/fw_stub.awk 150.endif 151 ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 152 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 153 154SRCS+= ${KMOD:S/$/.c/} 155CLEANFILES+= ${KMOD:S/$/.c/} 156 157.for _firmw in ${FIRMWS} 158${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 159 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 160 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 161 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 162 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 163 else \ 164 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 165 ${LD} -b binary --no-warn-mismatch ${LDFLAGS} \ 166 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 167 rm ${_firmw:C/\:.*$//}; \ 168 fi 169 170OBJS+= ${_firmw:C/\:.*$/.fwo/} 171.endfor 172.endif 173 174OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 175 176.if !defined(PROG) 177PROG= ${KMOD}.ko 178.endif 179 180.if !defined(DEBUG_FLAGS) 181FULLPROG= ${PROG} 182.else 183FULLPROG= ${PROG}.debug 184${PROG}: ${FULLPROG} ${PROG}.symbols 185 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 186 ${FULLPROG} ${.TARGET} 187${PROG}.symbols: ${FULLPROG} 188 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 189.endif 190 191.if ${__KLD_SHARED} == yes 192${FULLPROG}: ${KMOD}.kld 193 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 194.if !defined(DEBUG_FLAGS) 195 ${OBJCOPY} --strip-debug ${.TARGET} 196.endif 197.endif 198 199EXPORT_SYMS?= NO 200.if ${EXPORT_SYMS} != YES 201CLEANFILES+= export_syms 202.endif 203 204.if ${__KLD_SHARED} == yes 205${KMOD}.kld: ${OBJS} 206.else 207${FULLPROG}: ${OBJS} 208.endif 209 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 210.if defined(MK_CTF) && ${MK_CTF} != "no" 211 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 212.endif 213.if defined(EXPORT_SYMS) 214.if ${EXPORT_SYMS} != YES 215.if ${EXPORT_SYMS} == NO 216 :> export_syms 217.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 218 echo ${EXPORT_SYMS} > export_syms 219.else 220 grep -v '^#' < ${EXPORT_SYMS} > export_syms 221.endif 222 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 223 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 224.endif 225.endif 226.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 227 ${OBJCOPY} --strip-debug ${.TARGET} 228.endif 229 230_ILINKS=@ machine 231.if ${MACHINE} != ${MACHINE_CPUARCH} 232_ILINKS+=${MACHINE_CPUARCH} 233.endif 234.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 235_ILINKS+=x86 236.endif 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} ;; \ 270 *) \ 271 path=${SYSDIR}/${.TARGET:T}/include ;; \ 272 esac ; \ 273 path=`(cd $$path && /bin/pwd)` ; \ 274 ${ECHO} ${.TARGET:T} "->" $$path ; \ 275 ln -sf $$path ${.TARGET:T} 276.endfor 277 278CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 279 280.if defined(DEBUG_FLAGS) 281CLEANFILES+= ${FULLPROG} ${PROG}.symbols 282.endif 283 284.if !target(install) 285 286_INSTALLFLAGS:= ${INSTALLFLAGS} 287.for ie in ${INSTALLFLAGS_EDIT} 288_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 289.endfor 290 291.if !target(realinstall) 292realinstall: _kmodinstall 293.ORDER: beforeinstall _kmodinstall 294_kmodinstall: 295 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 296 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 297.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && \ 298 (defined(MK_KERNEL_SYMBOLS) && ${MK_KERNEL_SYMBOLS} != "no") 299 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 300 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 301.endif 302 303.include <bsd.links.mk> 304 305.if !defined(NO_XREF) 306afterinstall: _kldxref 307.ORDER: realinstall _kldxref 308.ORDER: _installlinks _kldxref 309_kldxref: 310 @if type kldxref >/dev/null 2>&1; then \ 311 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 312 kldxref ${DESTDIR}${KMODDIR}; \ 313 fi 314.endif 315.endif # !target(realinstall) 316 317.endif # !target(install) 318 319.if !target(load) 320load: ${PROG} 321 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 322.endif 323 324.if !target(unload) 325unload: 326 ${KMODUNLOAD} -v ${PROG} 327.endif 328 329.if defined(KERNBUILDDIR) 330.PATH: ${KERNBUILDDIR} 331CFLAGS+= -I${KERNBUILDDIR} 332.for _src in ${SRCS:Mopt_*.h} 333CLEANFILES+= ${_src} 334.if !target(${_src}) 335${_src}: 336 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 337.endif 338.endfor 339.else 340.for _src in ${SRCS:Mopt_*.h} 341CLEANFILES+= ${_src} 342.if !target(${_src}) 343${_src}: 344 :> ${.TARGET} 345.endif 346.endfor 347.endif 348 349# Respect configuration-specific C flags. 350CFLAGS+= ${CONF_CFLAGS} 351 352MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 353 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 354 dev/fb/fb_if.m \ 355 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 356 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 357 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 358 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 359 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \ 360 dev/sound/pci/hda/hdac_if.m \ 361 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 362 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 363 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 364 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 365 kern/bus_if.m kern/clock_if.m \ 366 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 367 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 368 pc98/pc98/canbus_if.m 369 370.for _srcsrc in ${MFILES} 371.for _ext in c h 372.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 373CLEANFILES+= ${_src} 374.if !target(${_src}) 375.if !exists(@) 376${_src}: @ 377.else 378${_src}: @/tools/makeobjops.awk @/${_srcsrc} 379.endif 380 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 381.endif 382.endfor # _src 383.endfor # _ext 384.endfor # _srcsrc 385 386.if !empty(SRCS:Mvnode_if.c) 387CLEANFILES+= vnode_if.c 388.if !exists(@) 389vnode_if.c: @ 390.else 391vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 392.endif 393 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 394.endif 395 396.if !empty(SRCS:Mvnode_if.h) 397CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 398.if !exists(@) 399vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 400.else 401vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 402 @/kern/vnode_if.src 403.endif 404vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 405 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 406vnode_if_newproto.h: 407 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 408vnode_if_typedef.h: 409 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 410.endif 411 412.for _i in mii pccard 413.if !empty(SRCS:M${_i}devs.h) 414CLEANFILES+= ${_i}devs.h 415.if !exists(@) 416${_i}devs.h: @ 417.else 418${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 419.endif 420 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 421.endif 422.endfor # _i 423 424.if !empty(SRCS:Musbdevs.h) 425CLEANFILES+= usbdevs.h 426.if !exists(@) 427usbdevs.h: @ 428.else 429usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 430.endif 431 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 432.endif 433 434.if !empty(SRCS:Musbdevs_data.h) 435CLEANFILES+= usbdevs_data.h 436.if !exists(@) 437usbdevs_data.h: @ 438.else 439usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 440.endif 441 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 442.endif 443 444.if !empty(SRCS:Macpi_quirks.h) 445CLEANFILES+= acpi_quirks.h 446.if !exists(@) 447acpi_quirks.h: @ 448.else 449acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 450.endif 451 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 452.endif 453 454.if !empty(SRCS:Massym.s) 455CLEANFILES+= assym.s genassym.o 456assym.s: genassym.o 457.if defined(KERNBUILDDIR) 458genassym.o: opt_global.h 459.endif 460.if !exists(@) 461assym.s: @ 462.else 463assym.s: @/kern/genassym.sh 464.endif 465 sh @/kern/genassym.sh genassym.o > ${.TARGET} 466.if exists(@) 467genassym.o: @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 468.endif 469genassym.o: @ machine ${SRCS:Mopt_*.h} 470 ${CC} -c ${CFLAGS:N-fno-common} \ 471 @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 472.endif 473 474lint: ${SRCS} 475 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 476 477.if defined(KERNBUILDDIR) 478${OBJS}: opt_global.h 479.endif 480 481.include <bsd.dep.mk> 482 483cleandepend: cleanilinks 484# .depend needs include links so we remove them only together. 485cleanilinks: 486 rm -f ${_ILINKS} 487 488.if !exists(${.OBJDIR}/${DEPENDFILE}) 489${OBJS}: ${SRCS:M*.h} 490.endif 491 492.include <bsd.obj.mk> 493.include "kern.mk" 494