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 #
  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)).
  16 #               [${DESTKERNDIR}/${DESTMODULESNAME}]
  17 #
  18 # KMODOWN       KLD owner. [${BINOWN}]
  19 #
  20 # KMODGRP       KLD group. [${BINGRP}]
  21 #
  22 # KMODMODE      KLD mode. [${BINMODE}]
  23 #
  24 # KMODLOAD      Command to load a kernel module [/sbin/kldload]
  25 #
  26 # KMODUNLOAD    Command to unload a kernel module [/sbin/kldunload]
  27 #
  28 # NOMAN         KLD does not have a manual page if set.
  29 #
  30 # PROG          The name of the kernel module to build.
  31 #               If not supplied, ${KMOD}.o is used.
  32 #
  33 # SRCS          List of source files
  34 #
  35 # KMODDEPS      List of modules which this one is dependant on
  36 #
  37 # DESTKERNDIR   Change the tree where the kernel and the modules get
  38 #               installed. [/boot]  ${DESTDIR} changes the root of the tree
  39 #               pointed to by ${DESTKERNDIR}.
  40 #
  41 # MFILES        Optionally a list of interfaces used by the module.
  42 #               This file contains a default list of interfaces.
  43 #
  44 # +++ targets +++
  45 #
  46 #       install:
  47 #               install the kernel module and its manual pages; if the Makefile
  48 #               does not itself define the target install, the targets
  49 #               beforeinstall and afterinstall may also be used to cause
  50 #               actions immediately before and after the install target
  51 #               is executed.
  52 #
  53 #       load:
  54 #               Load KLD.
  55 #
  56 #       unload:
  57 #               Unload KLD.
  58 #
  59 # bsd.obj.mk: clean, cleandir and obj
  60 # bsd.dep.mk: cleandepend, depend and tags
  61 # bsd.man.mk: maninstall
  62 #
  63
  64 OBJCOPY?=       objcopy
  65 KMODLOAD?=      /sbin/kldload
  66 KMODUNLOAD?=    /sbin/kldunload
  67
  68 KMODDIR?=       ${DESTKERNDIR}/${DESTMODULESNAME}
  69 KMODOWN?=       ${BINOWN}
  70 KMODGRP?=       ${BINGRP}
  71 KMODMODE?=      ${BINMODE}
  72
  73 .include <bsd.init.mk>
  74
  75 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  76
  77 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  78 CFLAGS+=        -DKLD_MODULE
  79
  80 # Don't use any standard 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 #
  85 # Don't use -I- anymore, source-relative includes are desireable.
  86 _ICFLAGS:=      ${CFLAGS:M-I*}
  87 CFLAGS+=        -nostdinc ${_ICFLAGS}
  88
  89 # Add -I paths for system headers.  Individual KLD makefiles don't
  90 # need any -I paths for this.  Similar defaults for .PATH can't be
  91 # set because there are no standard paths for non-headers.
  92 #
  93 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  94 # must run through the "machine_base" softlink using
  95 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  96 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  97 #
  98 CFLAGS+=        -I. -I@
  99
 100 # Add -I paths for headers in the kernel build directory
 101 #
 102 .if defined(BUILDING_WITH_KERNEL)
 103 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
 104 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
 105 .else
 106 .if defined(MAKEOBJDIRPREFIX)
 107 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 108 .else
 109 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 110 CLEANDIRS+=     ${_MACHINE_FWD}
 111 .endif
 112 .endif
 113 CFLAGS+=        -I${_MACHINE_FWD}/include
 114 .include "kern.fwd.mk"
 115
 116 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 117 # path to src/include if possible.  If the @ symlink hasn't been built
 118 # yet, then we can't tell if the relative path exists.  Add both the
 119 # potential relative path and an absolute path in that case.
 120 .if exists(@)
 121 .if exists(@/../include)
 122 CFLAGS+=        -I@/../include
 123 .else
 124 CFLAGS+=        -I${DESTDIR}/usr/include
 125 .endif
 126 .else # !@
 127 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 128 .endif # @
 129
 130 .if defined(BUILDING_WITH_KERNEL) && \
 131     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 132 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 133 .endif
 134
 135 CFLAGS+=        ${DEBUG_FLAGS}
 136 .if ${MACHINE_ARCH} == amd64
 137 CFLAGS+=        -fno-omit-frame-pointer
 138 .endif
 139
 140 .include <bsd.patch.mk>
 141
 142 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 143
 144 .if !defined(PROG)
 145 PROG=   ${KMOD}.ko
 146 .endif
 147
 148 .if ${MACHINE_ARCH} != amd64
 149 ${PROG}: ${KMOD}.kld ${KMODDEPS}
 150         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld ${KMODDEPS}
 151 .endif
 152
 153 .if defined(KMODDEPS)
 154 .for dep in ${KMODDEPS}
 155 CLEANFILES+=    ${dep} __${dep}_hack_dep.c
 156
 157 ${dep}:
 158         touch __${dep}_hack_dep.c
 159         ${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
 160 .endfor
 161 .endif
 162
 163 .if ${MACHINE_ARCH} != amd64
 164 ${KMOD}.kld: ${OBJS}
 165         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 166 .else
 167 ${PROG}: ${OBJS}
 168 .endif
 169
 170 .if !defined(NOMAN)
 171 .include <bsd.man.mk>
 172 .endif
 173
 174 # links to platform and cpu architecture include files.  If we are
 175 # building with a kernel these already exist in the kernel build dir.
 176 # '@' is a link to the system source.
 177 .if defined(BUILDING_WITH_KERNEL)
 178 _ILINKS=@
 179 .else
 180 _ILINKS=@ machine_base machine cpu_base cpu
 181 .endif
 182
 183 .if defined(ARCH)
 184 _ILINKS+=${ARCH}
 185 .endif
 186
 187 all: objwarn fwheaders ${PROG}
 188 .if !defined(NOMAN)
 189 all: _manpages
 190 .endif
 191
 192 beforedepend: fwheaders
 193 fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 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}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 204 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 205 SYSDIR= ${_dir}
 206 .endif
 207 .endfor
 208 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 209 .error "can't find kernel source tree"
 210 .endif
 211 S=      ${SYSDIR}
 212
 213 #       path=`(cd $$path && /bin/pwd)` ;
 214
 215 ${_ILINKS}:
 216         @case ${.TARGET} in \
 217         machine) \
 218                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 219         machine_base) \
 220                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 221         cpu) \
 222                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 223         cpu_base) \
 224                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 225         @) \
 226                 path=${SYSDIR} ;; \
 227         arch_*) \
 228                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 229         esac ; \
 230         ${ECHO} ${.TARGET} "->" $$path ; \
 231         ${LN} -s $$path ${.TARGET}
 232
 233 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 234
 235 .if !target(install)
 236
 237 _INSTALLFLAGS:= ${INSTALLFLAGS}
 238 .for ie in ${INSTALLFLAGS_EDIT}
 239 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 240 .endfor
 241
 242 .if !target(realinstall)
 243 realinstall: _kmodinstall
 244 .ORDER: beforeinstall _kmodinstall
 245 _kmodinstall:
 246 .if defined(INSTALLSTRIPPEDMODULES)
 247         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 248             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 249         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 250 .else
 251         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 252             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 253 .endif
 254 .endif # !target(realinstall)
 255
 256 .include <bsd.links.mk>
 257
 258 .if !defined(NOMAN)
 259 realinstall: _maninstall
 260 .ORDER: beforeinstall _maninstall
 261 .endif
 262
 263 .endif # !target(install)
 264
 265 .if !target(load)
 266 load:   ${PROG}
 267         ${KMODLOAD} -v ./${KMOD}.ko
 268 .endif
 269
 270 .if !target(unload)
 271 unload:
 272         ${KMODUNLOAD} -v ${KMOD}
 273 .endif
 274
 275 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 276 CLEANFILES+=    ${_src}
 277 .if !target(${_src})
 278 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 279 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 280 # we do not have to copy these files any more, the kernel build
 281 # directory is included in the path now.
 282 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 283 .else
 284 ${_src}:
 285         touch ${.TARGET}
 286 .endif  # BUILDING_WITH_KERNEL
 287 .endif
 288 .endfor
 289
 290 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 291     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 292     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 293     bus/pci/pcib_if.m \
 294     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 295     dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
 296     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 297     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 298     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/crypto_if.m
 299
 300 .for _srcsrc in ${MFILES}
 301 .for _ext in c h
 302 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
 303 CLEANFILES+=    ${_src}
 304 .if !target(${_src})
 305 ${_src}: @
 306 .if exists(@)
 307 ${_src}: @/tools/makeobjops.awk @/${_srcsrc}
 308 .endif
 309
 310 .if defined(BUILDING_WITH_KERNEL) && \
 311     exists(${BUILDING_WITH_KERNEL}/${_src})
 312 .else
 313         awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
 314 .endif
 315 .endif
 316 .endfor # _src
 317 .endfor # _ext
 318 .endfor # _srcsrc
 319
 320 #.for _ext in c h
 321 #.if ${SRCS:Mvnode_if.${_ext}} != ""
 322 #CLEANFILES+=   vnode_if.${_ext}
 323 #vnode_if.${_ext}: @
 324 #.if exists(@)
 325 #vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
 326 #.endif
 327 #       awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
 328 #.endif
 329 #.endfor
 330
 331 regress:
 332
 333 .include <bsd.dep.mk>
 334
 335 .if !exists(${DEPENDFILE})
 336 ${OBJS}: ${SRCS:M*.h}
 337 .endif
 338
 339 .include <bsd.obj.mk>
 340 .include "bsd.kern.mk"
 341
 342 # Behaves like MODULE_OVERRIDE
 343 .if defined(KLD_DEPS)
 344 all: _kdeps_all
 345 _kdeps_all: @
 346 .for _mdep in ${KLD_DEPS}
 347         cd ${SYSDIR}/${_mdep} && make all
 348 .endfor
 349 depend: _kdeps_depend
 350 _kdeps_depend: @
 351 .for _mdep in ${KLD_DEPS}
 352         cd ${SYSDIR}/${_mdep} && make depend
 353 .endfor
 354 install: _kdeps_install
 355 _kdeps_install: @
 356 .for _mdep in ${KLD_DEPS}
 357         cd ${SYSDIR}/${_mdep} && make install
 358 .endfor
 359 clean: _kdeps_clean
 360 _kdeps_clean: @
 361 .for _mdep in ${KLD_DEPS}
 362         cd ${SYSDIR}/${_mdep} && make clean
 363 .endfor
 364 .endif