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 # PROG          The name of the kernel module to build.
  29 #               If not supplied, ${KMOD}.o is used.
  30 #
  31 # SRCS          List of source files
  32 #
  33 # KMODDEPS      List of modules which this one is dependant on
  34 #
  35 # DESTKERNDIR   Change the tree where the kernel and the modules get
  36 #               installed. [/boot]  ${DESTDIR} changes the root of the tree
  37 #               pointed to by ${DESTKERNDIR}.
  38 #
  39 # MFILES        Optionally a list of interfaces used by the module.
  40 #               This file contains a default list of interfaces.
  41 #
  42 # +++ targets +++
  43 #
  44 #       install:
  45 #               install the kernel module and its manual pages; if the Makefile
  46 #               does not itself define the target install, the targets
  47 #               beforeinstall and afterinstall may also be used to cause
  48 #               actions immediately before and after the install target
  49 #               is executed.
  50 #
  51 #       load:
  52 #               Load KLD.
  53 #
  54 #       unload:
  55 #               Unload KLD.
  56 #
  57 # bsd.obj.mk: clean, cleandir and obj
  58 # bsd.dep.mk: cleandepend, depend and tags
  59 #
  60
  61 OBJCOPY?=       objcopy
  62 KMODLOAD?=      /sbin/kldload
  63 KMODUNLOAD?=    /sbin/kldunload
  64
  65 KMODDIR?=       ${DESTKERNDIR}/${DESTMODULESNAME}
  66 KMODOWN?=       ${BINOWN}
  67 KMODGRP?=       ${BINGRP}
  68 KMODMODE?=      ${BINMODE}
  69
  70 .include <bsd.init.mk>
  71
  72 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  73
  74 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  75 CFLAGS+=        -DKLD_MODULE
  76
  77 # Don't use any standard include directories.
  78 # Since -nostdinc will annull any previous -I paths, we repeat all
  79 # such paths after -nostdinc.  It doesn't seem to be possible to
  80 # add to the front of `make' variable.
  81 #
  82 # Don't use -I- anymore, source-relative includes are desireable.
  83 _ICFLAGS:=      ${CFLAGS:M-I*}
  84 CFLAGS+=        -nostdinc ${_ICFLAGS}
  85
  86 # Add -I paths for system headers.  Individual KLD makefiles don't
  87 # need any -I paths for this.  Similar defaults for .PATH can't be
  88 # set because there are no standard paths for non-headers.
  89 #
  90 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  91 # must run through the "machine_base" softlink using
  92 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  93 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  94 #
  95 CFLAGS+=        -I. -I@
  96
  97 # Add -I paths for headers in the kernel build directory
  98 #
  99 .if defined(BUILDING_WITH_KERNEL)
 100 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
 101 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
 102 .else
 103 .if defined(MAKEOBJDIRPREFIX)
 104 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 105 .else
 106 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 107 CLEANDIRS+=     ${_MACHINE_FWD}
 108 .endif
 109 .endif
 110 CFLAGS+=        -I${_MACHINE_FWD}/include
 111 .include "kern.fwd.mk"
 112
 113 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 114 # path to src/include if possible.  If the @ symlink hasn't been built
 115 # yet, then we can't tell if the relative path exists.  Add both the
 116 # potential relative path and an absolute path in that case.
 117 .if exists(@)
 118 .if exists(@/../include)
 119 CFLAGS+=        -I@/../include
 120 .else
 121 CFLAGS+=        -I${DESTDIR}/usr/include
 122 .endif
 123 .else # !@
 124 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 125 .endif # @
 126
 127 .if defined(BUILDING_WITH_KERNEL) && \
 128     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 129 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 130 .endif
 131
 132 CFLAGS+=        ${DEBUG_FLAGS}
 133 .if ${MACHINE_ARCH} == amd64
 134 CFLAGS+=        -fno-omit-frame-pointer
 135 .endif
 136
 137 .include <bsd.patch.mk>
 138
 139 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 140
 141 .if !defined(PROG)
 142 PROG=   ${KMOD}.ko
 143 .endif
 144
 145 .if ${MACHINE_ARCH} != amd64
 146 ${PROG}: ${KMOD}.kld ${KMODDEPS}
 147         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld ${KMODDEPS}
 148 .endif
 149
 150 .if defined(KMODDEPS)
 151 .for dep in ${KMODDEPS}
 152 CLEANFILES+=    ${dep} __${dep}_hack_dep.c
 153
 154 ${dep}:
 155         touch __${dep}_hack_dep.c
 156         ${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
 157 .endfor
 158 .endif
 159
 160 .if ${MACHINE_ARCH} != amd64
 161 ${KMOD}.kld: ${OBJS}
 162         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 163 .else
 164 ${PROG}: ${OBJS}
 165         ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 166 .endif
 167
 168 # links to platform and cpu architecture include files.  If we are
 169 # building with a kernel these already exist in the kernel build dir.
 170 # '@' is a link to the system source.
 171 .if defined(BUILDING_WITH_KERNEL)
 172 _ILINKS=@
 173 .else
 174 _ILINKS=@ machine_base machine cpu_base cpu
 175 .endif
 176
 177 .if defined(ARCH)
 178 _ILINKS+=${ARCH}
 179 .endif
 180
 181 all: objwarn fwheaders ${PROG}
 182
 183 beforedepend: fwheaders
 184 fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 185 # Ensure that the links exist without depending on it when it exists which
 186 # causes all the modules to be rebuilt when the directory pointed to changes.
 187 .for _link in ${_ILINKS}
 188 .if !exists(${.OBJDIR}/${_link})
 189 ${OBJS}: ${_link}
 190 .endif
 191 .endfor
 192
 193 # Search for kernel source tree in standard places.
 194 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 195 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 196 SYSDIR= ${_dir}
 197 .endif
 198 .endfor
 199 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 200 .error "can't find kernel source tree"
 201 .endif
 202 S=      ${SYSDIR}
 203
 204 #       path=`(cd $$path && /bin/pwd)` ;
 205
 206 ${_ILINKS}:
 207         @case ${.TARGET} in \
 208         machine) \
 209                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 210         machine_base) \
 211                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 212         cpu) \
 213                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 214         cpu_base) \
 215                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 216         @) \
 217                 path=${SYSDIR} ;; \
 218         arch_*) \
 219                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 220         esac ; \
 221         ${ECHO} ${.TARGET} "->" $$path ; \
 222         ${LN} -s $$path ${.TARGET}
 223
 224 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 225
 226 .if !target(install)
 227
 228 _INSTALLFLAGS:= ${INSTALLFLAGS}
 229 .for ie in ${INSTALLFLAGS_EDIT}
 230 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 231 .endfor
 232
 233 .if !target(realinstall)
 234 realinstall: _kmodinstall
 235 .ORDER: beforeinstall _kmodinstall
 236 _kmodinstall:
 237 .if defined(INSTALLSTRIPPEDMODULES)
 238         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 239             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 240         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 241 .else
 242         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 243             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 244 .endif
 245 .endif # !target(realinstall)
 246
 247 .include <bsd.links.mk>
 248
 249 .endif # !target(install)
 250
 251 .if !target(load)
 252 load:   ${PROG}
 253         ${KMODLOAD} -v ./${KMOD}.ko
 254 .endif
 255
 256 .if !target(unload)
 257 unload:
 258         ${KMODUNLOAD} -v ${KMOD}
 259 .endif
 260
 261 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 262 CLEANFILES+=    ${_src}
 263 .if !target(${_src})
 264 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 265 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 266 # we do not have to copy these files any more, the kernel build
 267 # directory is included in the path now.
 268 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 269 .else
 270 ${_src}:
 271         touch ${.TARGET}
 272 .endif  # BUILDING_WITH_KERNEL
 273 .endif
 274 .endfor
 275
 276 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 277     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 278     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 279     bus/pci/pcib_if.m \
 280     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 281     dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
 282     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 283     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 284     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/crypto_if.m
 285
 286 .for _srcsrc in ${MFILES}
 287 .for _ext in c h
 288 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
 289 CLEANFILES+=    ${_src}
 290 .if !target(${_src})
 291 ${_src}: @
 292 .if exists(@)
 293 ${_src}: @/tools/makeobjops.awk @/${_srcsrc}
 294 .endif
 295
 296 .if defined(BUILDING_WITH_KERNEL) && \
 297     exists(${BUILDING_WITH_KERNEL}/${_src})
 298 .else
 299         awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
 300 .endif
 301 .endif
 302 .endfor # _src
 303 .endfor # _ext
 304 .endfor # _srcsrc
 305
 306 #.for _ext in c h
 307 #.if ${SRCS:Mvnode_if.${_ext}} != ""
 308 #CLEANFILES+=   vnode_if.${_ext}
 309 #vnode_if.${_ext}: @
 310 #.if exists(@)
 311 #vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
 312 #.endif
 313 #       awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
 314 #.endif
 315 #.endfor
 316
 317 regress:
 318
 319 .include <bsd.dep.mk>
 320
 321 .if !exists(${DEPENDFILE})
 322 ${OBJS}: ${SRCS:M*.h}
 323 .endif
 324
 325 .include <bsd.obj.mk>
 326 .include "bsd.kern.mk"
 327
 328 # Behaves like MODULE_OVERRIDE
 329 .if defined(KLD_DEPS)
 330 all: _kdeps_all
 331 _kdeps_all: @
 332 .for _mdep in ${KLD_DEPS}
 333         cd ${SYSDIR}/${_mdep} && make all
 334 .endfor
 335 depend: _kdeps_depend
 336 _kdeps_depend: @
 337 .for _mdep in ${KLD_DEPS}
 338         cd ${SYSDIR}/${_mdep} && make depend
 339 .endfor
 340 install: _kdeps_install
 341 _kdeps_install: @
 342 .for _mdep in ${KLD_DEPS}
 343         cd ${SYSDIR}/${_mdep} && make install
 344 .endfor
 345 clean: _kdeps_clean
 346 _kdeps_clean: @
 347 .for _mdep in ${KLD_DEPS}
 348         cd ${SYSDIR}/${_mdep} && make clean
 349 .endfor
 350 .endif