kmod.mk revision 140876
1# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91 2# $FreeBSD: head/sys/conf/kmod.mk 140876 2005-01-26 21:35:55Z imp $ 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# DESTDIR The tree where the module gets installed. [not set] 40# 41# +++ targets +++ 42# 43# install: 44# install the kernel module; if the Makefile 45# does not itself define the target install, the targets 46# beforeinstall and afterinstall may also be used to cause 47# actions immediately before and after the install target 48# is executed. 49# 50# load: 51# Load a module. 52# 53# unload: 54# Unload a module. 55# 56 57AWK?= awk 58KMODLOAD?= /sbin/kldload 59KMODUNLOAD?= /sbin/kldunload 60OBJCOPY?= objcopy 61 62.if defined(KMODDEPS) 63.error "Do not use KMODDEPS on 5.0+; use MODULE_VERSION/MODULE_DEPEND" 64.endif 65 66.include <bsd.init.mk> 67 68.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 69 70.if ${CC} == "icc" 71CFLAGS:= ${CFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/} 72.else 73WERROR?= -Werror 74CFLAGS:= ${CFLAGS:C/-O2/-O2 -fno-strict-alias/} 75.endif 76CFLAGS+= ${WERROR} 77CFLAGS+= -D_KERNEL 78CFLAGS+= -DKLD_MODULE 79 80# Don't use any standard or source-relative include directories. 81# Since -nostdinc will annull any previous -I paths, we repeat all 82# such paths after -nostdinc. It doesn't seem to be possible to 83# add to the front of `make' variable. 84_ICFLAGS:= ${CFLAGS:M-I*} 85.if ${CC} == "icc" 86NOSTDINC= -X 87.else 88NOSTDINC= -nostdinc 89.endif 90CFLAGS+= ${NOSTDINC} -I- ${INCLMAGIC} ${_ICFLAGS} 91.if defined(KERNBUILDDIR) 92CFLAGS+= -include ${KERNBUILDDIR}/opt_global.h 93.endif 94 95# Add -I paths for system headers. Individual module makefiles don't 96# need any -I paths for this. Similar defaults for .PATH can't be 97# set because there are no standard paths for non-headers. 98CFLAGS+= -I. -I@ 99 100# Add -I path for altq headers as they are included via net/if_var.h 101# for example. 102CFLAGS+= -I@/contrib/altq 103 104# Add a -I path to standard headers like <stddef.h>. Use a relative 105# path to src/include if possible. If the @ symlink hasn't been built 106# yet, then we can't tell if the relative path exists. Add both the 107# potential relative path and an absolute path in that case. 108.if exists(@) 109.if exists(@/../include) 110CFLAGS+= -I@/../include 111.else 112CFLAGS+= -I${DESTDIR}/usr/include 113.endif 114.else # !@ 115CFLAGS+= -I@/../include -I${DESTDIR}/usr/include 116.endif # @ 117 118.if ${CC} != "icc" 119CFLAGS+= -finline-limit=${INLINE_LIMIT} 120.endif 121 122# Disallow common variables, and if we end up with commons from 123# somewhere unexpected, allocate storage for them in the module itself. 124.if ${CC} != "icc" 125CFLAGS+= -fno-common 126.endif 127LDFLAGS+= -d -warn-common 128 129CFLAGS+= ${DEBUG_FLAGS} 130.if ${MACHINE_ARCH} == amd64 131CFLAGS+= -fno-omit-frame-pointer 132.endif 133 134.if ${MACHINE_ARCH} == "powerpc" 135CFLAGS+= -mlongcall 136.endif 137 138OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 139 140.if !defined(PROG) 141PROG= ${KMOD}.ko 142.endif 143 144.if !defined(DEBUG_FLAGS) 145FULLPROG= ${PROG} 146.else 147FULLPROG= ${PROG}.debug 148${PROG}: ${FULLPROG} 149 ${OBJCOPY} --strip-debug ${FULLPROG} ${PROG} 150.endif 151 152.if ${MACHINE_ARCH} != amd64 153${FULLPROG}: ${KMOD}.kld 154 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 155.if !defined(DEBUG_FLAGS) 156 ${OBJCOPY} --strip-debug ${.TARGET} 157.endif 158.endif 159 160EXPORT_SYMS?= NO 161.if ${EXPORT_SYMS} != YES 162CLEANFILES+= export_syms 163.endif 164 165.if ${MACHINE_ARCH} != amd64 166${KMOD}.kld: ${OBJS} 167.else 168${FULLPROG}: ${OBJS} 169.endif 170 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 171.if defined(EXPORT_SYMS) 172.if ${EXPORT_SYMS} != YES 173.if ${EXPORT_SYMS} == NO 174 touch export_syms 175.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 176 echo ${EXPORT_SYMS} > export_syms 177.else 178 grep -v '^#' < ${EXPORT_SYMS} > export_syms 179.endif 180 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 181 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 182.endif 183.endif 184.if !defined(DEBUG_FLAGS) && ${MACHINE_ARCH} == amd64 185 ${OBJCOPY} --strip-debug ${.TARGET} 186.endif 187 188_ILINKS=@ machine 189 190all: objwarn ${PROG} 191 192beforedepend: ${_ILINKS} 193 194# Ensure that the links exist without depending on it when it exists which 195# causes all the modules to be rebuilt when the directory pointed to changes. 196.for _link in ${_ILINKS} 197.if !exists(${.OBJDIR}/${_link}) 198${OBJS}: ${_link} 199.endif 200.endfor 201 202# Search for kernel source tree in standard places. 203.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 204.if !defined(SYSDIR) && exists(${_dir}/kern/) 205SYSDIR= ${_dir} 206.endif 207.endfor 208.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 209.error "can't find kernel source tree" 210.endif 211 212${_ILINKS}: 213 @case ${.TARGET} in \ 214 machine) \ 215 path=${SYSDIR}/${MACHINE_ARCH}/include ;; \ 216 @) \ 217 path=${SYSDIR} ;; \ 218 esac ; \ 219 path=`(cd $$path && /bin/pwd)` ; \ 220 ${ECHO} ${.TARGET} "->" $$path ; \ 221 ln -s $$path ${.TARGET} 222 223CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} 224 225.if defined(DEBUG_FLAGS) 226CLEANFILES+= ${FULLPROG} 227.endif 228 229.if !target(install) 230 231_INSTALLFLAGS:= ${INSTALLFLAGS} 232.for ie in ${INSTALLFLAGS_EDIT} 233_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 234.endfor 235 236.if !target(install.debug) && defined(DEBUG_FLAGS) 237install.debug: 238 cd ${.CURDIR}; ${MAKE} -DINSTALL_DEBUG install 239.endif 240 241.if !target(realinstall) 242realinstall: _kmodinstall 243.ORDER: beforeinstall _kmodinstall 244_kmodinstall: 245.if defined(DEBUG_FLAGS) && defined(INSTALL_DEBUG) 246 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 247 ${_INSTALLFLAGS} ${FULLPROG} ${DESTDIR}${KMODDIR} 248.else 249 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 250 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 251 252.include <bsd.links.mk> 253 254.if !defined(NO_XREF) 255afterinstall: _kldxref 256.ORDER: realinstall _kldxref 257.ORDER: _installlinks _kldxref 258_kldxref: 259 @if type kldxref >/dev/null 2>&1; then \ 260 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 261 kldxref ${DESTDIR}${KMODDIR}; \ 262 fi 263.endif 264.endif 265.endif !target(realinstall) 266 267.endif !target(install) 268 269.if !target(load) 270load: ${PROG} 271 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 272.endif 273 274.if !target(unload) 275unload: 276 ${KMODUNLOAD} -v ${PROG} 277.endif 278 279.if defined(KERNBUILDDIR) 280.PATH: ${KERNBUILDDIR} 281CFLAGS+= -I${KERNBUILDDIR} 282.for _src in ${SRCS:Mopt_*.h} 283CLEANFILES+= ${_src} 284.if !target(${_src}) 285${_src}: 286 ln -s ${KERNBUILDDIR}/${_src} ${.TARGET} 287.endif 288.endfor 289.else 290.for _src in ${SRCS:Mopt_*.h} 291CLEANFILES+= ${_src} 292.if !target(${_src}) 293${_src}: 294 touch ${.TARGET} 295.endif 296.endfor 297.endif 298 299MFILES?= dev/acpica/acpi_if.m dev/eisa/eisa_if.m dev/iicbus/iicbb_if.m \ 300 dev/iicbus/iicbus_if.m dev/mii/miibus_if.m dev/ofw/ofw_bus_if.m \ 301 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 302 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \ 303 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 304 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m dev/uart/uart_if.m \ 305 dev/usb/usb_if.m isa/isa_if.m kern/bus_if.m kern/device_if.m \ 306 libkern/iconv_converter_if.m opencrypto/crypto_if.m \ 307 pc98/pc98/canbus_if.m pci/agp_if.m 308 309.for _srcsrc in ${MFILES} 310.for _ext in c h 311.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 312CLEANFILES+= ${_src} 313.if !target(${_src}) 314.if !exists(@) 315${_src}: @ 316.else 317${_src}: @/tools/makeobjops.awk @/${_srcsrc} 318.endif 319 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 320.endif 321.endfor # _src 322.endfor # _ext 323.endfor # _srcsrc 324 325.if ${SRCS:Mvnode_if.c} != "" 326CLEANFILES+= vnode_if.c 327.if !exists(@) 328vnode_if.c: @ 329.else 330vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 331.endif 332 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 333.endif 334 335.if ${SRCS:Mvnode_if.h} != "" 336CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 337.if !exists(@) 338vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 339.else 340vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 341 @/kern/vnode_if.src 342.endif 343vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 344 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 345vnode_if_newproto.h: 346 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 347vnode_if_typedef.h: 348 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 349.endif 350 351.for _i in mii pccard 352.if ${SRCS:M${_i}devs.h} != "" 353CLEANFILES+= ${_i}devs.h 354.if !exists(@) 355${_i}devs.h: @ 356.else 357${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 358.endif 359 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 360.endif 361.endfor # _i 362 363.if ${SRCS:Musbdevs.h} != "" 364CLEANFILES+= usbdevs.h 365.if !exists(@) 366usbdevs.h: @ 367.else 368usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 369.endif 370 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 371.endif 372 373.if ${SRCS:Musbdevs_data.h} != "" 374CLEANFILES+= usbdevs_data.h 375.if !exists(@) 376usbdevs_data.h: @ 377.else 378usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 379.endif 380 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 381.endif 382 383.if ${SRCS:Macpi_quirks.h} != "" 384CLEANFILES+= acpi_quirks.h 385.if !exists(@) 386acpi_quirks.h: @ 387.else 388acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 389.endif 390 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 391.endif 392 393lint: ${SRCS} 394 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 395 396.include <bsd.dep.mk> 397 398.if !exists(${.OBJDIR}/${DEPENDFILE}) 399${OBJS}: ${SRCS:M*.h} 400.endif 401 402.include <bsd.obj.mk> 403.include "kern.mk" 404