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 #               [${DESTKERNDIR}]
  15 #
  16 # KMODOWN       KLD owner. [${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 # KERNEL is needed when running make install directly from
  64 # the obj directory.
  65 KERNEL?=        kernel
  66
  67 KMODDIR?=       ${DESTKERNDIR}
  68 KMODOWN?=       ${BINOWN}
  69 KMODGRP?=       ${BINGRP}
  70 KMODMODE?=      ${BINMODE}
  71
  72 .include <bsd.init.mk>
  73
  74 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  75
  76 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  77 CFLAGS+=        -DKLD_MODULE
  78
  79 # Don't use any standard include directories.
  80 # Since -nostdinc will annull any previous -I paths, we repeat all
  81 # such paths after -nostdinc.  It doesn't seem to be possible to
  82 # add to the front of `make' variable.
  83 #
  84 # Don't use -I- anymore, source-relative includes are desireable.
  85 _ICFLAGS:=      ${CFLAGS:M-I*}
  86 CFLAGS+=        -nostdinc ${_ICFLAGS}
  87
  88 # Add -I paths for system headers.  Individual KLD makefiles don't
  89 # need any -I paths for this.  Similar defaults for .PATH can't be
  90 # set because there are no standard paths for non-headers.
  91 #
  92 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  93 # must run through the "machine_base" softlink using
  94 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  95 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  96 #
  97 CFLAGS+=        -I. -I@
  98
  99 # Add -I paths for headers in the kernel build directory
 100 #
 101 .if defined(BUILDING_WITH_KERNEL)
 102 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
 103 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
 104 .else
 105 .if defined(MAKEOBJDIRPREFIX)
 106 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 107 .else
 108 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 109 CLEANDIRS+=     ${_MACHINE_FWD}
 110 .endif
 111 .endif
 112 CFLAGS+=        -I${_MACHINE_FWD}/include
 113 .include "kern.fwd.mk"
 114
 115 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 116 # path to src/include if possible.  If the @ symlink hasn't been built
 117 # yet, then we can't tell if the relative path exists.  Add both the
 118 # potential relative path and an absolute path in that case.
 119 .if exists(@)
 120 .if exists(@/../include)
 121 CFLAGS+=        -I@/../include
 122 .else
 123 CFLAGS+=        -I${DESTDIR}/usr/include
 124 .endif
 125 .else # !@
 126 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 127 .endif # @
 128
 129 .if defined(BUILDING_WITH_KERNEL) && \
 130     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 131 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 132 .endif
 133
 134 CFLAGS+=        ${DEBUG_FLAGS}
 135 .if ${MACHINE_ARCH} == x86_64
 136 CFLAGS+=        -fno-omit-frame-pointer
 137 .endif
 138
 139 .include <bsd.patch.mk>
 140
 141 .if defined(FIRMWS)
 142 AWK=/usr/bin/awk
 143 .if !exists(@)
 144 ${KMOD:S/$/.c/}: @
 145 .else
 146 ${KMOD:S/$/.c/}: @/tools/fw_stub.awk
 147 .endif
 148         ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 149             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 150
 151 SRCS+=  ${KMOD:S/$/.c/}
 152 CLEANFILES+=    ${KMOD:S/$/.c/}
 153
 154 .for _firmw in ${FIRMWS}
 155 ${_firmw:C/\:.*$/.fwo/}:        ${_firmw:C/\:.*$//}
 156         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 157         @if [ -e ${_firmw:C/\:.*$//} ]; then                    \
 158                 ${LD} -b binary --no-warn-mismatch ${LDFLAGS}   \
 159                     -r -d -o ${.TARGET} ${_firmw:C/\:.*$//};    \
 160         else                                                    \
 161                 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 162                 ${LD} -b binary --no-warn-mismatch ${LDFLAGS}   \
 163                     -r -d -o ${.TARGET} ${_firmw:C/\:.*$//};    \
 164                 rm ${_firmw:C/\:.*$//};                         \
 165         fi
 166
 167 OBJS+=  ${_firmw:C/\:.*$/.fwo/}
 168 .endfor
 169 .endif
 170
 171 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 172
 173 .if !defined(PROG)
 174 PROG=   ${KMOD}.ko
 175 .endif
 176
 177 .if ${MACHINE_ARCH} != x86_64
 178 ${PROG}: ${KMOD}.kld
 179         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
 180 .endif
 181
 182 .if ${MACHINE_ARCH} != x86_64
 183 ${KMOD}.kld: ${OBJS}
 184         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 185 .else
 186 ${PROG}: ${OBJS}
 187         ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 188 .endif
 189
 190 # links to platform and cpu architecture include files.  If we are
 191 # building with a kernel these already exist in the kernel build dir.
 192 # '@' is a link to the system source.
 193 .if defined(BUILDING_WITH_KERNEL)
 194 _ILINKS=@
 195 .else
 196 _ILINKS=@ machine_base machine cpu_base cpu
 197 .endif
 198
 199 .if defined(ARCH)
 200 _ILINKS+=${ARCH}
 201 .endif
 202
 203 all: objwarn fwheaders ${PROG}
 204
 205 beforedepend: fwheaders
 206 fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 207 # Ensure that the links exist without depending on it when it exists which
 208 # causes all the modules to be rebuilt when the directory pointed to changes.
 209 .for _link in ${_ILINKS}
 210 .if !exists(${.OBJDIR}/${_link})
 211 ${OBJS}: ${_link}
 212 .endif
 213 .endfor
 214
 215 # Search for kernel source tree in standard places.
 216 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 217 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 218 SYSDIR= ${_dir}
 219 .endif
 220 .endfor
 221 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 222 .error "can't find kernel source tree"
 223 .endif
 224 S=      ${SYSDIR}
 225
 226 #       path=`(cd $$path && /bin/pwd)` ;
 227
 228 ${_ILINKS}:
 229         @case ${.TARGET} in \
 230         machine) \
 231                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 232         machine_base) \
 233                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 234         cpu) \
 235                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 236         cpu_base) \
 237                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 238         @) \
 239                 path=${SYSDIR} ;; \
 240         arch_*) \
 241                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 242         esac ; \
 243         ${ECHO} ${.TARGET} "->" $$path ; \
 244         ${LN} -s $$path ${.TARGET}
 245
 246 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 247
 248 .if !target(install)
 249
 250 _INSTALLFLAGS:= ${INSTALLFLAGS}
 251 .for ie in ${INSTALLFLAGS_EDIT}
 252 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 253 .endfor
 254
 255 .if !target(realinstall)
 256 realinstall: _kmodinstall
 257 .ORDER: beforeinstall _kmodinstall
 258 _kmodinstall:
 259 .if defined(INSTALLSTRIPPEDMODULES)
 260         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 261             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 262         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 263 .else
 264         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 265             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 266 .endif
 267 .endif # !target(realinstall)
 268
 269 .include <bsd.links.mk>
 270
 271 .endif # !target(install)
 272
 273 .if !target(load)
 274 load:   ${PROG}
 275         ${KMODLOAD} -v ./${KMOD}.ko
 276 .endif
 277
 278 .if !target(unload)
 279 unload:
 280         ${KMODUNLOAD} -v ${KMOD}
 281 .endif
 282
 283 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 284 CLEANFILES+=    ${_src}
 285 .if !target(${_src})
 286 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 287 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 288 # we do not have to copy these files any more, the kernel build
 289 # directory is included in the path now.
 290 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 291 .else
 292 ${_src}:
 293         touch ${.TARGET}
 294 .endif  # BUILDING_WITH_KERNEL
 295 .endif
 296 .endfor
 297
 298 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 299     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 300     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 301     bus/pci/pcib_if.m \
 302     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 303     dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
 304     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 305     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 306     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/cryptodev_if.m \
 307     bus/mmc/mmcbus_if.m bus/mmc/mmcbr_if.m
 308
 309 .for _srcsrc in ${MFILES}
 310 .for _ext in c h
 311 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
 312 CLEANFILES+=    ${_src}
 313 .if !target(${_src})
 314 ${_src}: @
 315 .if exists(@)
 316 ${_src}: @/tools/makeobjops.awk @/${_srcsrc}
 317 .endif
 318
 319 .if defined(BUILDING_WITH_KERNEL) && \
 320     exists(${BUILDING_WITH_KERNEL}/${_src})
 321 .else
 322         awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
 323 .endif
 324 .endif
 325 .endfor # _src
 326 .endfor # _ext
 327 .endfor # _srcsrc
 328
 329 #.for _ext in c h
 330 #.if ${SRCS:Mvnode_if.${_ext}} != ""
 331 #CLEANFILES+=   vnode_if.${_ext}
 332 #vnode_if.${_ext}: @
 333 #.if exists(@)
 334 #vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
 335 #.endif
 336 #       awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
 337 #.endif
 338 #.endfor
 339
 340 .if !empty(SRCS:Massym.s)
 341 CLEANFILES+=    assym.s genassym.o
 342 assym.s: genassym.o
 343 .if defined(BUILDING_WITH_KERNEL)
 344 genassym.o: opt_global.h
 345 .endif
 346 .if !exists(@)
 347 assym.s: @
 348 .else
 349 assym.s: @/kern/genassym.sh
 350 .endif
 351         sh @/kern/genassym.sh genassym.o > ${.TARGET}
 352 .if exists(@)
 353 genassym.o: @/platform/${MACHINE_PLATFORM}/${MACHINE_ARCH}/genassym.c
 354 .endif
 355 genassym.o: @ ${SRCS:Mopt_*.h}
 356         ${CC} -c ${CFLAGS:N-fno-common:N-mcmodel=small} ${WERROR} \
 357         @/platform/${MACHINE_PLATFORM}/${MACHINE_ARCH}/genassym.c
 358 .endif
 359
 360 regress:
 361
 362 .include <bsd.dep.mk>
 363
 364 .if !exists(${DEPENDFILE})
 365 ${OBJS}: ${SRCS:M*.h}
 366 .endif
 367
 368 .include <bsd.obj.mk>
 369 .include "bsd.kern.mk"
 370
 371 # Behaves like MODULE_OVERRIDE
 372 .if defined(KLD_DEPS)
 373 all: _kdeps_all
 374 _kdeps_all: @
 375 .for _mdep in ${KLD_DEPS}
 376         cd ${SYSDIR}/${_mdep} && make all
 377 .endfor
 378 depend: _kdeps_depend
 379 _kdeps_depend: @
 380 .for _mdep in ${KLD_DEPS}
 381         cd ${SYSDIR}/${_mdep} && make depend
 382 .endfor
 383 install: _kdeps_install
 384 _kdeps_install: @
 385 .for _mdep in ${KLD_DEPS}
 386         cd ${SYSDIR}/${_mdep} && make install
 387 .endfor
 388 clean: _kdeps_clean
 389 _kdeps_clean: @
 390 .for _mdep in ${KLD_DEPS}
 391         cd ${SYSDIR}/${_mdep} && make clean
 392 .endfor
 393 .endif