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 # DESTKERNDIR   Change the tree where the kernel and the modules get
  34 #               installed. [/boot]  ${DESTDIR} changes the root of the tree
  35 #               pointed to by ${DESTKERNDIR}.
  36 #
  37 # MFILES        Optionally a list of interfaces used by the module.
  38 #               This file contains a default list of interfaces.
  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 KMODDIR?=       ${DESTKERNDIR}/${DESTMODULESNAME}
  64 KMODOWN?=       ${BINOWN}
  65 KMODGRP?=       ${BINGRP}
  66 KMODMODE?=      ${BINMODE}
  67
  68 .include <bsd.init.mk>
  69
  70 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
  71
  72 CFLAGS+=        ${COPTS} -D_KERNEL ${CWARNFLAGS}
  73 CFLAGS+=        -DKLD_MODULE
  74
  75 # Don't use any standard include directories.
  76 # Since -nostdinc will annull any previous -I paths, we repeat all
  77 # such paths after -nostdinc.  It doesn't seem to be possible to
  78 # add to the front of `make' variable.
  79 #
  80 # Don't use -I- anymore, source-relative includes are desireable.
  81 _ICFLAGS:=      ${CFLAGS:M-I*}
  82 CFLAGS+=        -nostdinc ${_ICFLAGS}
  83
  84 # Add -I paths for system headers.  Individual KLD makefiles don't
  85 # need any -I paths for this.  Similar defaults for .PATH can't be
  86 # set because there are no standard paths for non-headers.
  87 #
  88 # NOTE!  Traditional architecture paths such as <i386/i386/blah.h>
  89 # must run through the "machine_base" softlink using
  90 # <machine_base/i386/blah.h>.  An explicit cross-architecture path must
  91 # operate relative to /usr/src/sys using e.g. <arch/i386/i386/blah.h>
  92 #
  93 CFLAGS+=        -I. -I@
  94
  95 # Add -I paths for headers in the kernel build directory
  96 #
  97 .if defined(BUILDING_WITH_KERNEL)
  98 CFLAGS+=        -I${BUILDING_WITH_KERNEL}
  99 _MACHINE_FWD=   ${BUILDING_WITH_KERNEL}
 100 .else
 101 .if defined(MAKEOBJDIRPREFIX)
 102 _MACHINE_FWD=   ${MAKEOBJDIRPREFIX}/${SYSDIR}/forwarder_${MACHINE_ARCH}
 103 .else
 104 _MACHINE_FWD=   ${.OBJDIR}/forwarder_${MACHINE_ARCH}
 105 CLEANDIRS+=     ${_MACHINE_FWD}
 106 .endif
 107 .endif
 108 CFLAGS+=        -I${_MACHINE_FWD}/include
 109 .include "kern.fwd.mk"
 110
 111 # Add a -I path to standard headers like <stddef.h>.  Use a relative
 112 # path to src/include if possible.  If the @ symlink hasn't been built
 113 # yet, then we can't tell if the relative path exists.  Add both the
 114 # potential relative path and an absolute path in that case.
 115 .if exists(@)
 116 .if exists(@/../include)
 117 CFLAGS+=        -I@/../include
 118 .else
 119 CFLAGS+=        -I${DESTDIR}/usr/include
 120 .endif
 121 .else # !@
 122 CFLAGS+=        -I@/../include -I${DESTDIR}/usr/include
 123 .endif # @
 124
 125 .if defined(BUILDING_WITH_KERNEL) && \
 126     exists(${BUILDING_WITH_KERNEL}/opt_global.h)
 127 CFLAGS+=        -include ${BUILDING_WITH_KERNEL}/opt_global.h
 128 .endif
 129
 130 CFLAGS+=        ${DEBUG_FLAGS}
 131 .if ${MACHINE_ARCH} == x86_64
 132 CFLAGS+=        -fno-omit-frame-pointer
 133 .endif
 134
 135 .include <bsd.patch.mk>
 136
 137 OBJS+=  ${SRCS:N*.h:N*.patch:R:S/$/.o/g}
 138
 139 .if !defined(PROG)
 140 PROG=   ${KMOD}.ko
 141 .endif
 142
 143 .if ${MACHINE_ARCH} != x86_64
 144 ${PROG}: ${KMOD}.kld
 145         ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
 146 .endif
 147
 148 .if ${MACHINE_ARCH} != x86_64
 149 ${KMOD}.kld: ${OBJS}
 150         ${LD} ${LDFLAGS} -r -o ${.TARGET} ${OBJS}
 151 .else
 152 ${PROG}: ${OBJS}
 153         ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 154 .endif
 155
 156 # links to platform and cpu architecture include files.  If we are
 157 # building with a kernel these already exist in the kernel build dir.
 158 # '@' is a link to the system source.
 159 .if defined(BUILDING_WITH_KERNEL)
 160 _ILINKS=@
 161 .else
 162 _ILINKS=@ machine_base machine cpu_base cpu
 163 .endif
 164
 165 .if defined(ARCH)
 166 _ILINKS+=${ARCH}
 167 .endif
 168
 169 all: objwarn fwheaders ${PROG}
 170
 171 beforedepend: fwheaders
 172 fwheaders: ${_ILINKS} ${FORWARD_HEADERS_COOKIE}
 173 # Ensure that the links exist without depending on it when it exists which
 174 # causes all the modules to be rebuilt when the directory pointed to changes.
 175 .for _link in ${_ILINKS}
 176 .if !exists(${.OBJDIR}/${_link})
 177 ${OBJS}: ${_link}
 178 .endif
 179 .endfor
 180
 181 # Search for kernel source tree in standard places.
 182 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
 183 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 184 SYSDIR= ${_dir}
 185 .endif
 186 .endfor
 187 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
 188 .error "can't find kernel source tree"
 189 .endif
 190 S=      ${SYSDIR}
 191
 192 #       path=`(cd $$path && /bin/pwd)` ;
 193
 194 ${_ILINKS}:
 195         @case ${.TARGET} in \
 196         machine) \
 197                 path=${SYSDIR}/platform/${MACHINE_PLATFORM}/include ;; \
 198         machine_base) \
 199                 path=${SYSDIR}/platform/${MACHINE_PLATFORM} ;; \
 200         cpu) \
 201                 path=${SYSDIR}/cpu/${MACHINE_ARCH}/include ;; \
 202         cpu_base) \
 203                 path=${SYSDIR}/cpu/${MACHINE_ARCH} ;; \
 204         @) \
 205                 path=${SYSDIR} ;; \
 206         arch_*) \
 207                 path=${.CURDIR}/${MACHINE_ARCH} ;; \
 208         esac ; \
 209         ${ECHO} ${.TARGET} "->" $$path ; \
 210         ${LN} -s $$path ${.TARGET}
 211
 212 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
 213
 214 .if !target(install)
 215
 216 _INSTALLFLAGS:= ${INSTALLFLAGS}
 217 .for ie in ${INSTALLFLAGS_EDIT}
 218 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
 219 .endfor
 220
 221 .if !target(realinstall)
 222 realinstall: _kmodinstall
 223 .ORDER: beforeinstall _kmodinstall
 224 _kmodinstall:
 225 .if defined(INSTALLSTRIPPEDMODULES)
 226         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 227             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 228         ${OBJCOPY} --strip-debug ${DESTDIR}${KMODDIR}/${PROG}
 229 .else
 230         ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 231             ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
 232 .endif
 233 .endif # !target(realinstall)
 234
 235 .include <bsd.links.mk>
 236
 237 .endif # !target(install)
 238
 239 .if !target(load)
 240 load:   ${PROG}
 241         ${KMODLOAD} -v ./${KMOD}.ko
 242 .endif
 243
 244 .if !target(unload)
 245 unload:
 246         ${KMODUNLOAD} -v ${KMOD}
 247 .endif
 248
 249 .for _src in ${SRCS:Mopt_*.h} ${SRCS:Muse_*.h}
 250 CLEANFILES+=    ${_src}
 251 .if !target(${_src})
 252 .if defined(BUILDING_WITH_KERNEL) && exists(${BUILDING_WITH_KERNEL}/${_src})
 253 ${_src}: ${BUILDING_WITH_KERNEL}/${_src}
 254 # we do not have to copy these files any more, the kernel build
 255 # directory is included in the path now.
 256 #       cp ${BUILDING_WITH_KERNEL}/${_src} ${.TARGET}
 257 .else
 258 ${_src}:
 259         touch ${.TARGET}
 260 .endif  # BUILDING_WITH_KERNEL
 261 .endif
 262 .endfor
 263
 264 MFILES?= kern/bus_if.m kern/device_if.m bus/iicbus/iicbb_if.m \
 265     bus/iicbus/iicbus_if.m bus/isa/isa_if.m dev/netif/mii_layer/miibus_if.m \
 266     bus/pccard/card_if.m bus/pccard/power_if.m bus/pci/pci_if.m \
 267     bus/pci/pcib_if.m \
 268     bus/ppbus/ppbus_if.m bus/smbus/smbus_if.m bus/usb/usb_if.m \
 269     dev/acpica5/acpi_if.m dev/disk/nata/ata_if.m \
 270     dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
 271     dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
 272     libiconv/iconv_converter_if.m dev/agp/agp_if.m opencrypto/cryptodev_if.m
 273
 274 .for _srcsrc in ${MFILES}
 275 .for _ext in c h
 276 .for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
 277 CLEANFILES+=    ${_src}
 278 .if !target(${_src})
 279 ${_src}: @
 280 .if exists(@)
 281 ${_src}: @/tools/makeobjops.awk @/${_srcsrc}
 282 .endif
 283
 284 .if defined(BUILDING_WITH_KERNEL) && \
 285     exists(${BUILDING_WITH_KERNEL}/${_src})
 286 .else
 287         awk -f @/tools/makeobjops.awk -- -${_ext} @/${_srcsrc}
 288 .endif
 289 .endif
 290 .endfor # _src
 291 .endfor # _ext
 292 .endfor # _srcsrc
 293
 294 #.for _ext in c h
 295 #.if ${SRCS:Mvnode_if.${_ext}} != ""
 296 #CLEANFILES+=   vnode_if.${_ext}
 297 #vnode_if.${_ext}: @
 298 #.if exists(@)
 299 #vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
 300 #.endif
 301 #       awk -f @/tools/vnode_if.awk -- -${_ext} @/kern/vnode_if.src
 302 #.endif
 303 #.endfor
 304
 305 regress:
 306
 307 .include <bsd.dep.mk>
 308
 309 .if !exists(${DEPENDFILE})
 310 ${OBJS}: ${SRCS:M*.h}
 311 .endif
 312
 313 .include <bsd.obj.mk>
 314 .include "bsd.kern.mk"
 315
 316 # Behaves like MODULE_OVERRIDE
 317 .if defined(KLD_DEPS)
 318 all: _kdeps_all
 319 _kdeps_all: @
 320 .for _mdep in ${KLD_DEPS}
 321         cd ${SYSDIR}/${_mdep} && make all
 322 .endfor
 323 depend: _kdeps_depend
 324 _kdeps_depend: @
 325 .for _mdep in ${KLD_DEPS}
 326         cd ${SYSDIR}/${_mdep} && make depend
 327 .endfor
 328 install: _kdeps_install
 329 _kdeps_install: @
 330 .for _mdep in ${KLD_DEPS}
 331         cd ${SYSDIR}/${_mdep} && make install
 332 .endfor
 333 clean: _kdeps_clean
 334 _kdeps_clean: @
 335 .for _mdep in ${KLD_DEPS}
 336         cd ${SYSDIR}/${_mdep} && make clean
 337 .endfor
 338 .endif