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 1.32 2007/01/19 08:23:42 dillon Exp $
   4 #
   5 # The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
   6 # drivers (KLD's).
   7 #
   8 #
   9 # +++ variables +++
  10 #
  11 # CLEANFILES    Additional files to remove for the clean and cleandir targets.
  12 #
  13 # KMOD          The name of the kernel module to build.
  14 #
  15 # KMODDIR       Base path for kernel modules (see kld(4)). [/modules]
  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 # NOMAN         KLD does not have a manual page if set.
  28 #
  29 # PROG          The name of the kernel module to build.
  30 #               If not supplied, ${KMOD}.o is used.
  31 #
  32 # SRCS          List of source files
  33 #
  34 # KMODDEPS      List of modules which this one is dependant on
  35 #
  36 # DESTDIR       Change the tree where the module gets installed. [not set]
  37 #
  38 # MFILES        Optionally a list of interfaces used by the module.
  39 #               This file contains a default list of interfaces.
  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 # bsd.man.mk: maninstall
  59 #
  60
  61 OBJCOPY?=       objcopy
  62 KMODLOAD?=      /sbin/kldload
  63 KMODUNLOAD?=    /sbin/kldunload
  64
  65 .include <bsd.init.mk>
  66
  67 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  68
  69 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  70 CFLAGS+=        -DKLD_MODULE
  71
  72 # Don't use any standard include directories.
  73 # Since -nostdinc will annull any previous -I paths, we repeat all
  74 # such paths after -nostdinc.  It doesn't seem to be possible to
  75 # add to the front of `make' variable.
  76 #
  77 # Don't use -I- anymore, source-relative includes are desireable.
  78 _ICFLAGS:=      ${CFLAGS:M-I*}
  79 CFLAGS+=        -nostdinc ${_ICFLAGS}
  80
  81 # Add -I paths for system headers.  Individual KLD makefiles don't
  82 # need any -I paths for this.  Similar defaults for .PATH can't be
  83 # set because there are no standard paths for non-headers.
  84 #
  85 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  86 # must run through the "machine_base" softlink using
  87 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  88 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  89 #
  90 CFLAGS+=        -I. -I@
  91
  92 # Add -I paths for headers in the kernel build directory
  93 #
  94 .if defined(BUILDING_WITH_KERNEL)
  95 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
  96 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
  97 .else
  98 .if defined(MAKEOBJDIRPREFIX)
  99 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 100 .else
 101 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 102 CLEANDIRS+=     ${_MACHINE_FWD}
 103 .endif
 104 .endif
 105 CFLAGS+=        -I${_MACHINE_FWD}/include
 106 .include "kern.fwd.mk"
 107
 108 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 109 # path to src/include if possible.  If the @ symlink hasn't been built
 110 # yet, then we can't tell if the relative path exists.  Add both the
 111 # potential relative path and an absolute path in that case.
 112 .if exists(@)
 113 .if exists(@/../include)
 114 CFLAGS+=        -I@/../include
 115 .else
 116 CFLAGS+=        -I${DESTDIR}/usr/include
 117 .endif
 118 .else # !@
 119 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 120 .endif # @
 121
 122 .if defined(BUILDING_WITH_KERNEL) && \
 123     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 124 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 125 .endif
 126
 127 CFLAGS+=        ${DEBUG_FLAGS}
 128
 129 .include <bsd.patch.mk>
 130
 131 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 132
 133 .if !defined(PROG)
 134 PROG=   ${KMOD}.ko
 135 .endif
 136
 137 ${PROG}: ${KMOD}.kld ${KMODDEPS}
 138         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld ${KMODDEPS}
 139
 140 .if defined(KMODDEPS)
 141 .for dep in ${KMODDEPS}
 142 CLEANFILES+=    ${dep} __${dep}_hack_dep.c
 143
 144 ${dep}:
 145         touch __${dep}_hack_dep.c
 146         ${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
 147 .endfor
 148 .endif
 149
 150 ${KMOD}.kld: ${OBJS}
 151         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 152
 153 .if !defined(NOMAN)
 154 .include <bsd.man.mk>
 155 .endif
 156
 157 # links to platform and cpu architecture include files.  If we are
 158 # building with a kernel these already exist in the kernel build dir.
 159 # '@' is a link to the system source.
 160 .if defined(BUILDING_WITH_KERNEL)
 161 _ILINKS=@
 162 .else
 163 _ILINKS=@ machine_base machine cpu_base cpu
 164 .endif
 165
 166 .if defined(ARCH)
 167 _ILINKS+=${ARCH}
 168 .endif
 169
 170 all: objwarn ${PROG}
 171 .if !defined(NOMAN)
 172 all: _manpages
 173 .endif
 174
 175 beforedepend: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 176 # Ensure that the links exist without depending on it when it exists which
 177 # causes all the modules to be rebuilt when the directory pointed to changes.
 178 .for _link in ${_ILINKS}
 179 .if !exists(${.OBJDIR}/${_link})
 180 ${OBJS}: ${_link}
 181 .endif
 182 .endfor
 183
 184 # Search for kernel source tree in standard places.
 185 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 186 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 187 SYSDIR= ${_dir}
 188 .endif
 189 .endfor
 190 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 191 .error "can't find kernel source tree"
 192 .endif
 193 S=      ${SYSDIR}
 194
 195 #       path=`(cd $$path && /bin/pwd)` ;
 196
 197 ${_ILINKS}:
 198         @case ${.TARGET} in \
 199         machine) \
 200                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 201         machine_base) \
 202                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 203         cpu) \
 204                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 205         cpu_base) \
 206                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 207         @) \
 208                 path=${SYSDIR} ;; \
 209         arch_*) \
 210                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 211         esac ; \
 212         ${ECHO} ${.TARGET} "->" $$path ; \
 213         ${LN} -s $$path ${.TARGET}
 214
 215 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 216
 217 .if !target(install)
 218
 219 _INSTALLFLAGS:= ${INSTALLFLAGS}
 220 .for ie in ${INSTALLFLAGS_EDIT}
 221 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 222 .endfor
 223
 224 .if !target(realinstall)
 225 realinstall: _kmodinstall
 226 .ORDER: beforeinstall _kmodinstall
 227 _kmodinstall:
 228 .if defined(INSTALLSTRIPPEDMODULES)
 229         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 230             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 231         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 232 .else
 233         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 234             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 235 .endif
 236 .endif # !target(realinstall)
 237
 238 .include <bsd.links.mk>
 239
 240 .if !defined(NOMAN)
 241 realinstall: _maninstall
 242 .ORDER: beforeinstall _maninstall
 243 .endif
 244
 245 .endif # !target(install)
 246
 247 .if !target(load)
 248 load:   ${PROG}
 249         ${KMODLOAD} -v ./${KMOD}.ko
 250 .endif
 251
 252 .if !target(unload)
 253 unload:
 254         ${KMODUNLOAD} -v ${KMOD}
 255 .endif
 256
 257 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 258 CLEANFILES+=    ${_src}
 259 .if !target(${_src})
 260 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 261 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 262 # we do not have to copy these files any more, the kernel build
 263 # directory is included in the path now.
 264 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 265 .else
 266 ${_src}:
 267         touch ${.TARGET}
 268 .endif  # BUILDING_WITH_KERNEL
 269 .endif
 270 .endfor
 271
 272 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 273     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 274     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 275     bus/pci/pcib_if.m \
 276     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 277     dev/disk/nata/ata_if.m \
 278     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 279     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 280     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/crypto_if.m
 281
 282 .for _srcsrc in ${MFILES}
 283 .for _ext in c h
 284 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
 285 CLEANFILES+=    ${_src}
 286 .if !target(${_src})
 287 ${_src}: @
 288 .if exists(@)
 289 ${_src}: @/tools/makeobjops.awk @/${_srcsrc}
 290 .endif
 291
 292 .if defined(BUILDING_WITH_KERNEL) && \
 293     exists(${BUILDING_WITH_KERNEL}/${_src})
 294 .else
 295         awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
 296 .endif
 297 .endif
 298 .endfor # _src
 299 .endfor # _ext
 300 .endfor # _srcsrc
 301
 302 #.for _ext in c h
 303 #.if ${SRCS:Mvnode_if.${_ext}} != ""
 304 #CLEANFILES+=   vnode_if.${_ext}
 305 #vnode_if.${_ext}: @
 306 #.if exists(@)
 307 #vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
 308 #.endif
 309 #       awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
 310 #.endif
 311 #.endfor
 312
 313 regress:
 314
 315 .include <bsd.dep.mk>
 316
 317 .if !exists(${DEPENDFILE})
 318 ${OBJS}: ${SRCS:M*.h}
 319 .endif
 320
 321 .include <bsd.obj.mk>
 322 .include "bsd.kern.mk"
 323
 324 # Behaves like MODULE_OVERRIDE
 325 .if defined(KLD_DEPS)
 326 all: _kdeps_all
 327 _kdeps_all: @
 328 .for _mdep in ${KLD_DEPS}
 329         cd ${SYSDIR}/${_mdep} && make all
 330 .endfor
 331 depend: _kdeps_depend
 332 _kdeps_depend: @
 333 .for _mdep in ${KLD_DEPS}
 334         cd ${SYSDIR}/${_mdep} && make depend
 335 .endfor
 336 install: _kdeps_install
 337 _kdeps_install: @
 338 .for _mdep in ${KLD_DEPS}
 339         cd ${SYSDIR}/${_mdep} && make install
 340 .endfor
 341 clean: _kdeps_clean
 342 _kdeps_clean: @
 343 .for _mdep in ${KLD_DEPS}
 344         cd ${SYSDIR}/${_mdep} && make clean
 345 .endfor
 346 .endif