kmod.mk revision 269539
1238438Sdteske# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91 2238438Sdteske# $FreeBSD: head/sys/conf/kmod.mk 269539 2014-08-04 22:34:56Z imp $ 3249746Sdteske# 4252980Sdteske# The include file <bsd.kmod.mk> handles building and installing loadable 5238438Sdteske# kernel modules. 6238438Sdteske# 7238438Sdteske# 8238438Sdteske# +++ variables +++ 9238438Sdteske# 10238438Sdteske# CLEANFILES Additional files to remove for the clean and cleandir targets. 11238438Sdteske# 12238438Sdteske# EXPORT_SYMS A list of symbols that should be exported from the module, 13238438Sdteske# or the name of a file containing a list of symbols, or YES 14238438Sdteske# to export all symbols. If not defined, no symbols are 15238438Sdteske# exported. 16252987Sdteske# 17238438Sdteske# KMOD The name of the kernel module to build. 18238438Sdteske# 19238438Sdteske# KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel] 20252987Sdteske# 21238438Sdteske# KMODOWN Module file owner. [${BINOWN}] 22238438Sdteske# 23238438Sdteske# KMODGRP Module file group. [${BINGRP}] 24238438Sdteske# 25238438Sdteske# KMODMODE Module file mode. [${BINMODE}] 26238438Sdteske# 27238438Sdteske# KMODLOAD Command to load a kernel module [/sbin/kldload] 28238438Sdteske# 29238438Sdteske# KMODUNLOAD Command to unload a kernel module [/sbin/kldunload] 30238438Sdteske# 31240684Sdteske# MFILES Optionally a list of interfaces used by the module. 32240684Sdteske# This file contains a default list of interfaces. 33244675Sdteske# 34240684Sdteske# PROG The name of the kernel module to build. 35240684Sdteske# If not supplied, ${KMOD}.ko is used. 36240684Sdteske# 37238438Sdteske# SRCS List of source files. 38240684Sdteske# 39238438Sdteske# FIRMWS List of firmware images in format filename:shortname:version 40238438Sdteske# 41260678Sdteske# FIRMWARE_LICENSE 42260678Sdteske# Set to the name of the license the user has to agree on in 43238438Sdteske# order to use this firmware. See /usr/share/doc/legal 44238438Sdteske# 45238438Sdteske# DESTDIR The tree where the module gets installed. [not set] 46238438Sdteske# 47238438Sdteske# +++ targets +++ 48238438Sdteske# 49238438Sdteske# install: 50238438Sdteske# install the kernel module; if the Makefile 51238438Sdteske# does not itself define the target install, the targets 52238438Sdteske# beforeinstall and afterinstall may also be used to cause 53238438Sdteske# actions immediately before and after the install target 54238438Sdteske# is executed. 55238438Sdteske# 56238438Sdteske# load: 57238438Sdteske# Load a module. 58238438Sdteske# 59250633Sdteske# unload: 60238438Sdteske# Unload a module. 61252178Sdteske# 62238438Sdteske 63238438SdteskeAWK?= awk 64238438SdteskeKMODLOAD?= /sbin/kldload 65238438SdteskeKMODUNLOAD?= /sbin/kldunload 66238438SdteskeOBJCOPY?= objcopy 67238438Sdteske 68238438Sdteske.include <bsd.init.mk> 69238438Sdteske# Grab all the options for a kernel build. For backwards compat, we need to 70238438Sdteske# do this after bsd.own.mk. 71238438Sdteske.include "kern.opts.mk" 72238438Sdteske.include <bsd.compiler.mk> 73238438Sdteske 74238438Sdteske.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 75238438Sdteske 76238438Sdteske# amd64 and mips use direct linking for kmod, all others use shared binaries 77238438Sdteske.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips 78238438Sdteske__KLD_SHARED=yes 79238438Sdteske.else 80238438Sdteske__KLD_SHARED=no 81238438Sdteske.endif 82238438Sdteske 83238438Sdteske.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 84238438SdteskeCFLAGS+= -fno-strict-aliasing 85238438Sdteske.endif 86238438SdteskeWERROR?= -Werror 87238438SdteskeCFLAGS+= ${WERROR} 88260678SdteskeCFLAGS+= -D_KERNEL 89260678SdteskeCFLAGS+= -DKLD_MODULE 90260678Sdteske 91260678Sdteske# Don't use any standard or source-relative include directories. 92260678SdteskeCSTD= c99 93260678SdteskeNOSTDINC= -nostdinc 94260678SdteskeCFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*} 95260678Sdteske.if defined(KERNBUILDDIR) 96260678SdteskeCFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 97238438Sdteske.endif 98238438Sdteske 99238438Sdteske# Add -I paths for system headers. Individual module makefiles don't 100238438Sdteske# need any -I paths for this. Similar defaults for .PATH can't be 101238438Sdteske# set because there are no standard paths for non-headers. 102238438SdteskeCFLAGS+= -I. -I@ 103238438Sdteske 104238438Sdteske# Add -I path for altq headers as they are included via net/if_var.h 105238438Sdteske# for example. 106238438SdteskeCFLAGS+= -I@/contrib/altq 107238438Sdteske 108238438SdteskeCFLAGS.gcc+= -finline-limit=${INLINE_LIMIT} 109260678SdteskeCFLAGS.gcc+= --param inline-unit-growth=100 110256181SdteskeCFLAGS.gcc+= --param large-function-growth=1000 111260678Sdteske 112260678Sdteske# Disallow common variables, and if we end up with commons from 113260678Sdteske# somewhere unexpected, allocate storage for them in the module itself. 114238438SdteskeCFLAGS+= -fno-common 115260678SdteskeLDFLAGS+= -d -warn-common 116260678Sdteske 117260678SdteskeCFLAGS+= ${DEBUG_FLAGS} 118260678Sdteske.if ${MACHINE_CPUARCH} == amd64 119260678SdteskeCFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 120260678Sdteske.endif 121260678Sdteske 122238438Sdteske.if ${MACHINE_CPUARCH} == powerpc 123238438SdteskeCFLAGS+= -mlongcall -fno-omit-frame-pointer 124238438Sdteske.endif 125238438Sdteske 126238438Sdteske.if ${MACHINE_CPUARCH} == mips 127238438SdteskeCFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls 128238438Sdteske.endif 129 130.if defined(DEBUG) || defined(DEBUG_FLAGS) 131CTFFLAGS+= -g 132.endif 133 134.if defined(FIRMWS) 135.if !exists(@) 136${KMOD:S/$/.c/}: @ 137.else 138${KMOD:S/$/.c/}: @/tools/fw_stub.awk 139.endif 140 ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \ 141 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE} 142 143SRCS+= ${KMOD:S/$/.c/} 144CLEANFILES+= ${KMOD:S/$/.c/} 145 146.for _firmw in ${FIRMWS} 147${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//} 148 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}} 149 @if [ -e ${_firmw:C/\:.*$//} ]; then \ 150 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 151 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 152 else \ 153 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \ 154 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \ 155 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \ 156 rm ${_firmw:C/\:.*$//}; \ 157 fi 158 159OBJS+= ${_firmw:C/\:.*$/.fwo/} 160.endfor 161.endif 162 163OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 164 165.if !defined(PROG) 166PROG= ${KMOD}.ko 167.endif 168 169.if !defined(DEBUG_FLAGS) 170FULLPROG= ${PROG} 171.else 172FULLPROG= ${PROG}.debug 173${PROG}: ${FULLPROG} ${PROG}.symbols 174 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\ 175 ${FULLPROG} ${.TARGET} 176${PROG}.symbols: ${FULLPROG} 177 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET} 178.endif 179 180.if ${__KLD_SHARED} == yes 181${FULLPROG}: ${KMOD}.kld 182 ${LD} -Bshareable ${_LDFLAGS} -o ${.TARGET} ${KMOD}.kld 183.if !defined(DEBUG_FLAGS) 184 ${OBJCOPY} --strip-debug ${.TARGET} 185.endif 186.endif 187 188EXPORT_SYMS?= NO 189.if ${EXPORT_SYMS} != YES 190CLEANFILES+= export_syms 191.endif 192 193.if ${__KLD_SHARED} == yes 194${KMOD}.kld: ${OBJS} 195.else 196${FULLPROG}: ${OBJS} 197.endif 198 ${LD} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 199.if ${MK_CTF} != "no" 200 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS} 201.endif 202.if defined(EXPORT_SYMS) 203.if ${EXPORT_SYMS} != YES 204.if ${EXPORT_SYMS} == NO 205 :> export_syms 206.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 207 echo ${EXPORT_SYMS} > export_syms 208.else 209 grep -v '^#' < ${EXPORT_SYMS} > export_syms 210.endif 211 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 212 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 213.endif 214.endif 215.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no 216 ${OBJCOPY} --strip-debug ${.TARGET} 217.endif 218 219_ILINKS=@ machine 220.if ${MACHINE} != ${MACHINE_CPUARCH} 221_ILINKS+=${MACHINE_CPUARCH} 222.endif 223.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 224_ILINKS+=x86 225.endif 226CLEANFILES+=${_ILINKS} 227 228all: objwarn ${PROG} 229 230beforedepend: ${_ILINKS} 231 232# Ensure that the links exist without depending on it when it exists which 233# causes all the modules to be rebuilt when the directory pointed to changes. 234.for _link in ${_ILINKS} 235.if !exists(${.OBJDIR}/${_link}) 236${OBJS}: ${.OBJDIR}/${_link} 237.endif 238.endfor 239 240# Search for kernel source tree in standard places. 241.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 242.if !defined(SYSDIR) && exists(${_dir}/kern/) 243SYSDIR= ${_dir} 244.endif 245.endfor 246.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 247.error "can't find kernel source tree" 248.endif 249 250.for _link in ${_ILINKS} 251.PHONY: ${_link} 252${_link}: ${.OBJDIR}/${_link} 253 254${.OBJDIR}/${_link}: 255 @case ${.TARGET:T} in \ 256 machine) \ 257 path=${SYSDIR}/${MACHINE}/include ;; \ 258 @) \ 259 path=${SYSDIR} ;; \ 260 *) \ 261 path=${SYSDIR}/${.TARGET:T}/include ;; \ 262 esac ; \ 263 path=`(cd $$path && /bin/pwd)` ; \ 264 ${ECHO} ${.TARGET:T} "->" $$path ; \ 265 ln -sf $$path ${.TARGET:T} 266.endfor 267 268CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} 269 270.if defined(DEBUG_FLAGS) 271CLEANFILES+= ${FULLPROG} ${PROG}.symbols 272.endif 273 274.if !target(install) 275 276_INSTALLFLAGS:= ${INSTALLFLAGS} 277.for ie in ${INSTALLFLAGS_EDIT} 278_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 279.endfor 280 281.if !target(realinstall) 282realinstall: _kmodinstall 283.ORDER: beforeinstall _kmodinstall 284_kmodinstall: 285 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 286 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 287.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no" 288 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 289 ${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR} 290.endif 291 292.include <bsd.links.mk> 293 294.if !defined(NO_XREF) 295afterinstall: _kldxref 296.ORDER: realinstall _kldxref 297.ORDER: _installlinks _kldxref 298_kldxref: 299 @if type kldxref >/dev/null 2>&1; then \ 300 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 301 kldxref ${DESTDIR}${KMODDIR}; \ 302 fi 303.endif 304.endif # !target(realinstall) 305 306.endif # !target(install) 307 308.if !target(load) 309load: ${PROG} 310 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 311.endif 312 313.if !target(unload) 314unload: 315 ${KMODUNLOAD} -v ${PROG} 316.endif 317 318.if defined(KERNBUILDDIR) 319.PATH: ${KERNBUILDDIR} 320CFLAGS+= -I${KERNBUILDDIR} 321.for _src in ${SRCS:Mopt_*.h} 322CLEANFILES+= ${_src} 323.if !target(${_src}) 324${_src}: 325 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET} 326.endif 327.endfor 328.else 329.for _src in ${SRCS:Mopt_*.h} 330CLEANFILES+= ${_src} 331.if !target(${_src}) 332${_src}: 333 :> ${.TARGET} 334.endif 335.endfor 336.endif 337 338# Respect configuration-specific C flags. 339CFLAGS+= ${CONF_CFLAGS} 340 341MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \ 342 dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 343 dev/fb/fb_if.m dev/gpio/gpio_if.m dev/gpio/gpiobus_if.m \ 344 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 345 dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \ 346 dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \ 347 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 348 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m \ 349 dev/sdhci/sdhci_if.m dev/smbus/smbus_if.m dev/spibus/spibus_if.m \ 350 dev/sound/pci/hda/hdac_if.m \ 351 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 352 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \ 353 dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \ 354 dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \ 355 kern/bus_if.m kern/clock_if.m \ 356 kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \ 357 libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \ 358 pc98/pc98/canbus_if.m dev/etherswitch/mdio_if.m 359 360.for _srcsrc in ${MFILES} 361.for _ext in c h 362.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 363CLEANFILES+= ${_src} 364.if !target(${_src}) 365.if !exists(@) 366${_src}: @ 367.else 368${_src}: @/tools/makeobjops.awk @/${_srcsrc} 369.endif 370 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 371.endif 372.endfor # _src 373.endfor # _ext 374.endfor # _srcsrc 375 376.if !empty(SRCS:Mvnode_if.c) 377CLEANFILES+= vnode_if.c 378.if !exists(@) 379vnode_if.c: @ 380.else 381vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 382.endif 383 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 384.endif 385 386.if !empty(SRCS:Mvnode_if.h) 387CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 388.if !exists(@) 389vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 390.else 391vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 392 @/kern/vnode_if.src 393.endif 394vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 395 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 396vnode_if_newproto.h: 397 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 398vnode_if_typedef.h: 399 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 400.endif 401 402.for _i in mii pccard 403.if !empty(SRCS:M${_i}devs.h) 404CLEANFILES+= ${_i}devs.h 405.if !exists(@) 406${_i}devs.h: @ 407.else 408${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 409.endif 410 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 411.endif 412.endfor # _i 413 414.if !empty(SRCS:Musbdevs.h) 415CLEANFILES+= usbdevs.h 416.if !exists(@) 417usbdevs.h: @ 418.else 419usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 420.endif 421 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 422.endif 423 424.if !empty(SRCS:Musbdevs_data.h) 425CLEANFILES+= usbdevs_data.h 426.if !exists(@) 427usbdevs_data.h: @ 428.else 429usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 430.endif 431 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 432.endif 433 434.if !empty(SRCS:Macpi_quirks.h) 435CLEANFILES+= acpi_quirks.h 436.if !exists(@) 437acpi_quirks.h: @ 438.else 439acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 440.endif 441 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 442.endif 443 444.if !empty(SRCS:Massym.s) 445CLEANFILES+= assym.s genassym.o 446assym.s: genassym.o 447.if defined(KERNBUILDDIR) 448genassym.o: opt_global.h 449.endif 450.if !exists(@) 451assym.s: @ 452.else 453assym.s: @/kern/genassym.sh 454.endif 455 sh @/kern/genassym.sh genassym.o > ${.TARGET} 456.if exists(@) 457genassym.o: @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 458.endif 459genassym.o: @ machine ${SRCS:Mopt_*.h} 460 ${CC} -c ${CFLAGS:N-fno-common} \ 461 @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c 462.endif 463 464lint: ${SRCS} 465 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 466 467.if defined(KERNBUILDDIR) 468${OBJS}: opt_global.h 469.endif 470 471.include <bsd.dep.mk> 472 473cleandepend: cleanilinks 474# .depend needs include links so we remove them only together. 475cleanilinks: 476 rm -f ${_ILINKS} 477 478.if !exists(${.OBJDIR}/${DEPENDFILE}) 479${OBJS}: ${SRCS:M*.h} 480.endif 481 482.include <bsd.obj.mk> 483.include "kern.mk" 484