sys/conf/kmod.mk

   1 #       From: @(#)bsd.prog.mk   5.26 (Berkeley) 6/25/91
   2 # $FreeBSD: src/sys/conf/kmod.mk,v 1.82.2.15 2003/02/10 13:11:50 nyan Exp $
   3 #
   4 # The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
   5 # drivers (KLD's).
   6 #
   7 #
   8 # +++ variables +++
   9 # CLEANFILES    Additional files to remove for the clean and cleandir targets.
  10 #
  11 # KMOD          The name of the kernel module to build.
  12 #
  13 # KMODDIR       Base path for kernel modules (see kld(4)).
  14 #               [${DESTKERNDIR}/${DESTMODULESNAME}]
  15 #
  16 # KMODOWN       KLD owner. [${BINOWN}]
  17 #
  18 # KMODGRP       KLD group. [${BINGRP}]
  19 #
  20 # KMODMODE      KLD mode. [${BINMODE}]
  21 #
  22 # KMODLOAD      Command to load a kernel module [/sbin/kldload]
  23 #
  24 # KMODUNLOAD    Command to unload a kernel module [/sbin/kldunload]
  25 #
  26 # PROG          The name of the kernel module to build.
  27 #               If not supplied, ${KMOD}.o is used.
  28 #
  29 # SRCS          List of source files
  30 #
  31 # DESTKERNDIR   Change the tree where the kernel and the modules get
  32 #               installed. [/boot]  ${DESTDIR} changes the root of the tree
  33 #               pointed to by ${DESTKERNDIR}.
  34 #
  35 # MFILES        Optionally a list of interfaces used by the module.
  36 #               This file contains a default list of interfaces.
  37 #
  38 # FIRMWS        Firmware module in the form filename:shortname:version
  39 #
  40 # +++ targets +++
  41 #
  42 #       install:
  43 #               install the kernel module and its manual pages; if the Makefile
  44 #               does not itself define the target install, the targets
  45 #               beforeinstall and afterinstall may also be used to cause
  46 #               actions immediately before and after the install target
  47 #               is executed.
  48 #
  49 #       load:
  50 #               Load KLD.
  51 #
  52 #       unload:
  53 #               Unload KLD.
  54 #
  55 # bsd.obj.mk: clean, cleandir and obj
  56 # bsd.dep.mk: cleandepend, depend and tags
  57 #
  58
  59 OBJCOPY?=       objcopy
  60 KMODLOAD?=      /sbin/kldload
  61 KMODUNLOAD?=    /sbin/kldunload
  62
  63 KMODDIR?=       ${DESTKERNDIR}/${DESTMODULESNAME}
  64 KMODOWN?=       ${BINOWN}
  65 KMODGRP?=       ${BINGRP}
  66 KMODMODE?=      ${BINMODE}
  67
  68 .include <bsd.init.mk>
  69
  70 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  71
  72 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  73 CFLAGS+=        -DKLD_MODULE
  74
  75 # Don't use any standard include directories.
  76 # Since -nostdinc will annull any previous -I paths, we repeat all
  77 # such paths after -nostdinc.  It doesn't seem to be possible to
  78 # add to the front of `make' variable.
  79 #
  80 # Don't use -I- anymore, source-relative includes are desireable.
  81 _ICFLAGS:=      ${CFLAGS:M-I*}
  82 CFLAGS+=        -nostdinc ${_ICFLAGS}
  83
  84 # Add -I paths for system headers.  Individual KLD makefiles don't
  85 # need any -I paths for this.  Similar defaults for .PATH can't be
  86 # set because there are no standard paths for non-headers.
  87 #
  88 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  89 # must run through the "machine_base" softlink using
  90 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  91 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  92 #
  93 CFLAGS+=        -I. -I@
  94
  95 # Add -I paths for headers in the kernel build directory
  96 #
  97 .if defined(BUILDING_WITH_KERNEL)
  98 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
  99 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
 100 .else
 101 .if defined(MAKEOBJDIRPREFIX)
 102 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 103 .else
 104 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 105 CLEANDIRS+=     ${_MACHINE_FWD}
 106 .endif
 107 .endif
 108 CFLAGS+=        -I${_MACHINE_FWD}/include
 109 .include "kern.fwd.mk"
 110
 111 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 112 # path to src/include if possible.  If the @ symlink hasn't been built
 113 # yet, then we can't tell if the relative path exists.  Add both the
 114 # potential relative path and an absolute path in that case.
 115 .if exists(@)
 116 .if exists(@/../include)
 117 CFLAGS+=        -I@/../include
 118 .else
 119 CFLAGS+=        -I${DESTDIR}/usr/include
 120 .endif
 121 .else # !@
 122 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 123 .endif # @
 124
 125 .if defined(BUILDING_WITH_KERNEL) && \
 126     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 127 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 128 .endif
 129
 130 CFLAGS+=        ${DEBUG_FLAGS}
 131 .if ${MACHINE_ARCH} == x86_64
 132 CFLAGS+=        -fno-omit-frame-pointer
 133 .endif
 134
 135 .include <bsd.patch.mk>
 136
 137 .if defined(FIRMWS)
 138 AWK=/usr/bin/awk
 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
 147 SRCS+=  ${KMOD:S/$/.c/}
 148 CLEANFILES+=    ${KMOD:S/$/.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
 163 OBJS+=  ${_firmw:C/\:.*$/.fwo/}
 164 .endfor
 165 .endif
 166
 167 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 168
 169 .if !defined(PROG)
 170 PROG=   ${KMOD}.ko
 171 .endif
 172
 173 .if ${MACHINE_ARCH} != x86_64
 174 ${PROG}: ${KMOD}.kld
 175         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
 176 .endif
 177
 178 .if ${MACHINE_ARCH} != x86_64
 179 ${KMOD}.kld: ${OBJS}
 180         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 181 .else
 182 ${PROG}: ${OBJS}
 183         ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 184 .endif
 185
 186 # links to platform and cpu architecture include files.  If we are
 187 # building with a kernel these already exist in the kernel build dir.
 188 # '@' is a link to the system source.
 189 .if defined(BUILDING_WITH_KERNEL)
 190 _ILINKS=@
 191 .else
 192 _ILINKS=@ machine_base machine cpu_base cpu
 193 .endif
 194
 195 .if defined(ARCH)
 196 _ILINKS+=${ARCH}
 197 .endif
 198
 199 all: objwarn fwheaders ${PROG}
 200
 201 beforedepend: fwheaders
 202 fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 203 # Ensure that the links exist without depending on it when it exists which
 204 # causes all the modules to be rebuilt when the directory pointed to changes.
 205 .for _link in ${_ILINKS}
 206 .if !exists(${.OBJDIR}/${_link})
 207 ${OBJS}: ${_link}
 208 .endif
 209 .endfor
 210
 211 # Search for kernel source tree in standard places.
 212 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 213 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 214 SYSDIR= ${_dir}
 215 .endif
 216 .endfor
 217 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 218 .error "can't find kernel source tree"
 219 .endif
 220 S=      ${SYSDIR}
 221
 222 #       path=`(cd $$path && /bin/pwd)` ;
 223
 224 ${_ILINKS}:
 225         @case ${.TARGET} in \
 226         machine) \
 227                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 228         machine_base) \
 229                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 230         cpu) \
 231                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 232         cpu_base) \
 233                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 234         @) \
 235                 path=${SYSDIR} ;; \
 236         arch_*) \
 237                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 238         esac ; \
 239         ${ECHO} ${.TARGET} "->" $$path ; \
 240         ${LN} -s $$path ${.TARGET}
 241
 242 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 243
 244 .if !target(install)
 245
 246 _INSTALLFLAGS:= ${INSTALLFLAGS}
 247 .for ie in ${INSTALLFLAGS_EDIT}
 248 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 249 .endfor
 250
 251 .if !target(realinstall)
 252 realinstall: _kmodinstall
 253 .ORDER: beforeinstall _kmodinstall
 254 _kmodinstall:
 255 .if defined(INSTALLSTRIPPEDMODULES)
 256         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 257             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 258         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 259 .else
 260         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 261             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 262 .endif
 263 .endif # !target(realinstall)
 264
 265 .include <bsd.links.mk>
 266
 267 .endif # !target(install)
 268
 269 .if !target(load)
 270 load:   ${PROG}
 271         ${KMODLOAD} -v ./${KMOD}.ko
 272 .endif
 273
 274 .if !target(unload)
 275 unload:
 276         ${KMODUNLOAD} -v ${KMOD}
 277 .endif
 278
 279 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 280 CLEANFILES+=    ${_src}
 281 .if !target(${_src})
 282 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 283 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 284 # we do not have to copy these files any more, the kernel build
 285 # directory is included in the path now.
 286 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 287 .else
 288 ${_src}:
 289         touch ${.TARGET}
 290 .endif  # BUILDING_WITH_KERNEL
 291 .endif
 292 .endfor
 293
 294 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 295     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 296     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 297     bus/pci/pcib_if.m \
 298     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 299     dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
 300     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 301     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 302     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/cryptodev_if.m \
 303     bus/mmc/mmcbus_if.m bus/mmc/mmcbr_if.m
 304
 305 .for _srcsrc in ${MFILES}
 306 .for _ext in c h
 307 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
 308 CLEANFILES+=    ${_src}
 309 .if !target(${_src})
 310 ${_src}: @
 311 .if exists(@)
 312 ${_src}: @/tools/makeobjops.awk @/${_srcsrc}
 313 .endif
 314
 315 .if defined(BUILDING_WITH_KERNEL) && \
 316     exists(${BUILDING_WITH_KERNEL}/${_src})
 317 .else
 318         awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
 319 .endif
 320 .endif
 321 .endfor # _src
 322 .endfor # _ext
 323 .endfor # _srcsrc
 324
 325 #.for _ext in c h
 326 #.if ${SRCS:Mvnode_if.${_ext}} != ""
 327 #CLEANFILES+=   vnode_if.${_ext}
 328 #vnode_if.${_ext}: @
 329 #.if exists(@)
 330 #vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
 331 #.endif
 332 #       awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
 333 #.endif
 334 #.endfor
 335
 336 .if !empty(SRCS:Massym.s)
 337 CLEANFILES+=    assym.s genassym.o
 338 assym.s: genassym.o
 339 .if defined(BUILDING_WITH_KERNEL)
 340 genassym.o: opt_global.h
 341 .endif
 342 .if !exists(@)
 343 assym.s: @
 344 .else
 345 assym.s: @/kern/genassym.sh
 346 .endif
 347         sh @/kern/genassym.sh genassym.o > ${.TARGET}
 348 .if exists(@)
 349 genassym.o: @/platform/${MACHINE_PLATFORM}/${MACHINE_ARCH}/genassym.c
 350 .endif
 351 genassym.o: @ ${SRCS:Mopt_*.h}
 352         ${CC} -c ${CFLAGS:N-fno-common:N-mcmodel=small} ${WERROR} \
 353         @/platform/${MACHINE_PLATFORM}/${MACHINE_ARCH}/genassym.c
 354 .endif
 355
 356 regress:
 357
 358 .include <bsd.dep.mk>
 359
 360 .if !exists(${DEPENDFILE})
 361 ${OBJS}: ${SRCS:M*.h}
 362 .endif
 363
 364 .include <bsd.obj.mk>
 365 .include "bsd.kern.mk"
 366
 367 # Behaves like MODULE_OVERRIDE
 368 .if defined(KLD_DEPS)
 369 all: _kdeps_all
 370 _kdeps_all: @
 371 .for _mdep in ${KLD_DEPS}
 372         cd ${SYSDIR}/${_mdep} && make all
 373 .endfor
 374 depend: _kdeps_depend
 375 _kdeps_depend: @
 376 .for _mdep in ${KLD_DEPS}
 377         cd ${SYSDIR}/${_mdep} && make depend
 378 .endfor
 379 install: _kdeps_install
 380 _kdeps_install: @
 381 .for _mdep in ${KLD_DEPS}
 382         cd ${SYSDIR}/${_mdep} && make install
 383 .endfor
 384 clean: _kdeps_clean
 385 _kdeps_clean: @
 386 .for _mdep in ${KLD_DEPS}
 387         cd ${SYSDIR}/${_mdep} && make clean
 388 .endfor
 389 .endif