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 # $DragonFly: src/sys/conf/kmod.mk,v 1.35 2008/08/27 16:35:19 hasso Exp $
   4 #
   5 # The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
   6 # drivers (KLD's).
   7 #
   8 #
   9 # +++ variables +++
  10 # CLEANFILES    Additional files to remove for the clean and cleandir targets.
  11 #
  12 # KMOD          The name of the kernel module to build.
  13 #
  14 # KMODDIR       Base path for kernel modules (see kld(4)).
  15 #               [${DESTKERNDIR}/${DESTMODULESNAME}]
  16 #
  17 # KMODOWN       KLD owner. [${BINOWN}]
  18 #
  19 # KMODGRP       KLD group. [${BINGRP}]
  20 #
  21 # KMODMODE      KLD mode. [${BINMODE}]
  22 #
  23 # KMODLOAD      Command to load a kernel module [/sbin/kldload]
  24 #
  25 # KMODUNLOAD    Command to unload a kernel module [/sbin/kldunload]
  26 #
  27 # PROG          The name of the kernel module to build.
  28 #               If not supplied, ${KMOD}.o is used.
  29 #
  30 # SRCS          List of source files
  31 #
  32 # DESTKERNDIR   Change the tree where the kernel and the modules get
  33 #               installed. [/boot]  ${DESTDIR} changes the root of the tree
  34 #               pointed to by ${DESTKERNDIR}.
  35 #
  36 # MFILES        Optionally a list of interfaces used by the module.
  37 #               This file contains a default list of interfaces.
  38 #
  39 # FIRMWS        Firmware module in the form filename:shortname:version
  40 #
  41 # +++ targets +++
  42 #
  43 #       install:
  44 #               install the kernel module and its manual pages; 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 KLD.
  52 #
  53 #       unload:
  54 #               Unload KLD.
  55 #
  56 # bsd.obj.mk: clean, cleandir and obj
  57 # bsd.dep.mk: cleandepend, depend and tags
  58 #
  59
  60 OBJCOPY?=       objcopy
  61 KMODLOAD?=      /sbin/kldload
  62 KMODUNLOAD?=    /sbin/kldunload
  63
  64 KMODDIR?=       ${DESTKERNDIR}/${DESTMODULESNAME}
  65 KMODOWN?=       ${BINOWN}
  66 KMODGRP?=       ${BINGRP}
  67 KMODMODE?=      ${BINMODE}
  68
  69 .include <bsd.init.mk>
  70
  71 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  72
  73 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  74 CFLAGS+=        -DKLD_MODULE
  75
  76 # Don't use any standard include directories.
  77 # Since -nostdinc will annull any previous -I paths, we repeat all
  78 # such paths after -nostdinc.  It doesn't seem to be possible to
  79 # add to the front of `make' variable.
  80 #
  81 # Don't use -I- anymore, source-relative includes are desireable.
  82 _ICFLAGS:=      ${CFLAGS:M-I*}
  83 CFLAGS+=        -nostdinc ${_ICFLAGS}
  84
  85 # Add -I paths for system headers.  Individual KLD makefiles don't
  86 # need any -I paths for this.  Similar defaults for .PATH can't be
  87 # set because there are no standard paths for non-headers.
  88 #
  89 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  90 # must run through the "machine_base" softlink using
  91 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  92 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  93 #
  94 CFLAGS+=        -I. -I@
  95
  96 # Add -I paths for headers in the kernel build directory
  97 #
  98 .if defined(BUILDING_WITH_KERNEL)
  99 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
 100 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
 101 .else
 102 .if defined(MAKEOBJDIRPREFIX)
 103 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 104 .else
 105 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 106 CLEANDIRS+=     ${_MACHINE_FWD}
 107 .endif
 108 .endif
 109 CFLAGS+=        -I${_MACHINE_FWD}/include
 110 .include "kern.fwd.mk"
 111
 112 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 113 # path to src/include if possible.  If the @ symlink hasn't been built
 114 # yet, then we can't tell if the relative path exists.  Add both the
 115 # potential relative path and an absolute path in that case.
 116 .if exists(@)
 117 .if exists(@/../include)
 118 CFLAGS+=        -I@/../include
 119 .else
 120 CFLAGS+=        -I${DESTDIR}/usr/include
 121 .endif
 122 .else # !@
 123 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 124 .endif # @
 125
 126 .if defined(BUILDING_WITH_KERNEL) && \
 127     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 128 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 129 .endif
 130
 131 CFLAGS+=        ${DEBUG_FLAGS}
 132 .if ${MACHINE_ARCH} == x86_64
 133 CFLAGS+=        -fno-omit-frame-pointer
 134 .endif
 135
 136 .include <bsd.patch.mk>
 137
 138 .if defined(FIRMWS)
 139 AWK=/usr/bin/awk
 140 .if !exists(@)
 141 ${KMOD:S/$/.c/}: @
 142 .else
 143 ${KMOD:S/$/.c/}: @/tools/fw_stub.awk
 144 .endif
 145         ${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 146             ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 147
 148 SRCS+=  ${KMOD:S/$/.c/}
 149 CLEANFILES+=    ${KMOD:S/$/.c/}
 150
 151 .for _firmw in ${FIRMWS}
 152 ${_firmw:C/\:.*$/.fwo/}:        ${_firmw:C/\:.*$//}
 153         @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 154         @if [ -e ${_firmw:C/\:.*$//} ]; then                    \
 155                 ${LD} -b binary --no-warn-mismatch ${LDFLAGS}   \
 156                     -r -d -o ${.TARGET} ${_firmw:C/\:.*$//};    \
 157         else                                                    \
 158                 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 159                 ${LD} -b binary --no-warn-mismatch ${LDFLAGS}   \
 160                     -r -d -o ${.TARGET} ${_firmw:C/\:.*$//};    \
 161                 rm ${_firmw:C/\:.*$//};                         \
 162         fi
 163
 164 OBJS+=  ${_firmw:C/\:.*$/.fwo/}
 165 .endfor
 166 .endif
 167
 168 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 169
 170 .if !defined(PROG)
 171 PROG=   ${KMOD}.ko
 172 .endif
 173
 174 .if ${MACHINE_ARCH} != x86_64
 175 ${PROG}: ${KMOD}.kld
 176         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
 177 .endif
 178
 179 .if ${MACHINE_ARCH} != x86_64
 180 ${KMOD}.kld: ${OBJS}
 181         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 182 .else
 183 ${PROG}: ${OBJS}
 184         ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 185 .endif
 186
 187 # links to platform and cpu architecture include files.  If we are
 188 # building with a kernel these already exist in the kernel build dir.
 189 # '@' is a link to the system source.
 190 .if defined(BUILDING_WITH_KERNEL)
 191 _ILINKS=@
 192 .else
 193 _ILINKS=@ machine_base machine cpu_base cpu
 194 .endif
 195
 196 .if defined(ARCH)
 197 _ILINKS+=${ARCH}
 198 .endif
 199
 200 all: objwarn fwheaders ${PROG}
 201
 202 beforedepend: fwheaders
 203 fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 204 # Ensure that the links exist without depending on it when it exists which
 205 # causes all the modules to be rebuilt when the directory pointed to changes.
 206 .for _link in ${_ILINKS}
 207 .if !exists(${.OBJDIR}/${_link})
 208 ${OBJS}: ${_link}
 209 .endif
 210 .endfor
 211
 212 # Search for kernel source tree in standard places.
 213 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 214 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 215 SYSDIR= ${_dir}
 216 .endif
 217 .endfor
 218 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 219 .error "can't find kernel source tree"
 220 .endif
 221 S=      ${SYSDIR}
 222
 223 #       path=`(cd $$path && /bin/pwd)` ;
 224
 225 ${_ILINKS}:
 226         @case ${.TARGET} in \
 227         machine) \
 228                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 229         machine_base) \
 230                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 231         cpu) \
 232                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 233         cpu_base) \
 234                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 235         @) \
 236                 path=${SYSDIR} ;; \
 237         arch_*) \
 238                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 239         esac ; \
 240         ${ECHO} ${.TARGET} "->" $$path ; \
 241         ${LN} -s $$path ${.TARGET}
 242
 243 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 244
 245 .if !target(install)
 246
 247 _INSTALLFLAGS:= ${INSTALLFLAGS}
 248 .for ie in ${INSTALLFLAGS_EDIT}
 249 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 250 .endfor
 251
 252 .if !target(realinstall)
 253 realinstall: _kmodinstall
 254 .ORDER: beforeinstall _kmodinstall
 255 _kmodinstall:
 256 .if defined(INSTALLSTRIPPEDMODULES)
 257         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 258             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 259         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 260 .else
 261         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 262             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 263 .endif
 264 .endif # !target(realinstall)
 265
 266 .include <bsd.links.mk>
 267
 268 .endif # !target(install)
 269
 270 .if !target(load)
 271 load:   ${PROG}
 272         ${KMODLOAD} -v ./${KMOD}.ko
 273 .endif
 274
 275 .if !target(unload)
 276 unload:
 277         ${KMODUNLOAD} -v ${KMOD}
 278 .endif
 279
 280 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 281 CLEANFILES+=    ${_src}
 282 .if !target(${_src})
 283 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 284 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 285 # we do not have to copy these files any more, the kernel build
 286 # directory is included in the path now.
 287 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 288 .else
 289 ${_src}:
 290         touch ${.TARGET}
 291 .endif  # BUILDING_WITH_KERNEL
 292 .endif
 293 .endfor
 294
 295 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 296     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 297     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 298     bus/pci/pcib_if.m \
 299     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 300     dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
 301     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 302     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 303     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/cryptodev_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 regress:
 337
 338 .include <bsd.dep.mk>
 339
 340 .if !exists(${DEPENDFILE})
 341 ${OBJS}: ${SRCS:M*.h}
 342 .endif
 343
 344 .include <bsd.obj.mk>
 345 .include "bsd.kern.mk"
 346
 347 # Behaves like MODULE_OVERRIDE
 348 .if defined(KLD_DEPS)
 349 all: _kdeps_all
 350 _kdeps_all: @
 351 .for _mdep in ${KLD_DEPS}
 352         cd ${SYSDIR}/${_mdep} && make all
 353 .endfor
 354 depend: _kdeps_depend
 355 _kdeps_depend: @
 356 .for _mdep in ${KLD_DEPS}
 357         cd ${SYSDIR}/${_mdep} && make depend
 358 .endfor
 359 install: _kdeps_install
 360 _kdeps_install: @
 361 .for _mdep in ${KLD_DEPS}
 362         cd ${SYSDIR}/${_mdep} && make install
 363 .endfor
 364 clean: _kdeps_clean
 365 _kdeps_clean: @
 366 .for _mdep in ${KLD_DEPS}
 367         cd ${SYSDIR}/${_mdep} && make clean
 368 .endfor
 369 .endif