1 # From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
4 # The include file <bsd.kmod.mk> handles building and installing loadable
10 # CLEANFILES Additional files to remove for the clean and cleandir targets.
12 # EXPORT_SYMS A list of symbols that should be exported from the module,
13 # or the name of a file containing a list of symbols, or YES
14 # to export all symbols. If not defined, no symbols are
17 # KMOD The name of the kernel module to build.
19 # KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel]
21 # KMODOWN Module file owner. [${BINOWN}]
23 # KMODGRP Module file group. [${BINGRP}]
25 # KMODMODE Module file mode. [${BINMODE}]
27 # KMODLOAD Command to load a kernel module [/sbin/kldload]
29 # KMODUNLOAD Command to unload a kernel module [/sbin/kldunload]
31 # PROG The name of the kernel module to build.
32 # If not supplied, ${KMOD}.ko is used.
34 # SRCS List of source files.
36 # FIRMWS List of firmware images in format filename:shortname:version
39 # Set to the name of the license the user has to agree on in
40 # order to use this firmware. See /usr/share/doc/legal
42 # DESTDIR The tree where the module gets installed. [not set]
47 # install the kernel module; 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
61 KMODLOAD?= /sbin/kldload
62 KMODUNLOAD?= /sbin/kldunload
65 .include <bsd.init.mk>
66 # Grab all the options for a kernel build. For backwards compat, we need to
67 # do this after bsd.own.mk.
68 .include "kern.opts.mk"
69 .include <bsd.compiler.mk>
72 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
74 # amd64 and mips use direct linking for kmod, all others use shared binaries
75 .if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
81 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
82 CFLAGS+= -fno-strict-aliasing
89 # Don't use any standard or source-relative include directories.
91 CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
92 .if defined(KERNBUILDDIR)
93 CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
96 # Add -I paths for system headers. Individual module makefiles don't
97 # need any -I paths for this. Similar defaults for .PATH can't be
98 # set because there are no standard paths for non-headers.
99 CFLAGS+= -I. -I${SYSDIR}
101 CFLAGS.gcc+= -finline-limit=${INLINE_LIMIT}
102 CFLAGS.gcc+= -fms-extensions
103 CFLAGS.gcc+= --param inline-unit-growth=100
104 CFLAGS.gcc+= --param large-function-growth=1000
106 # Disallow common variables, and if we end up with commons from
107 # somewhere unexpected, allocate storage for them in the module itself.
109 LDFLAGS+= -d -warn-common
111 CFLAGS+= ${DEBUG_FLAGS}
112 .if ${MACHINE_CPUARCH} == amd64
113 CFLAGS+= -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
116 # Temporary workaround for PR 196407, which contains the fascinating details.
117 # Don't allow clang to use fpu instructions or registers in kernel modules.
118 .if ${MACHINE_CPUARCH} == arm
119 CFLAGS.clang+= -mllvm -arm-use-movt=0
120 CFLAGS.clang+= -mfpu=none
121 CFLAGS+= -funwind-tables
124 .if ${MACHINE_CPUARCH} == powerpc
125 CFLAGS+= -mlongcall -fno-omit-frame-pointer
128 .if ${MACHINE_CPUARCH} == mips
129 CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls
132 .if defined(DEBUG) || defined(DEBUG_FLAGS)
137 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
138 ${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
139 ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
141 SRCS+= ${KMOD:S/$/.c/}
142 CLEANFILES+= ${KMOD:S/$/.c/}
144 .for _firmw in ${FIRMWS}
145 ${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//}
146 @${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
147 @if [ -e ${_firmw:C/\:.*$//} ]; then \
148 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \
149 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \
151 ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
152 ${LD} -b binary --no-warn-mismatch ${_LDFLAGS} \
153 -r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \
154 rm ${_firmw:C/\:.*$//}; \
157 OBJS+= ${_firmw:C/\:.*$/.fwo/}
161 # Conditionally include SRCS based on kernel config options.
162 .for _o in ${KERN_OPTS}
166 OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
172 .if !defined(DEBUG_FLAGS)
175 FULLPROG= ${PROG}.full
176 ${PROG}: ${FULLPROG} ${PROG}.debug
177 ${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
178 ${FULLPROG} ${.TARGET}
179 ${PROG}.debug: ${FULLPROG}
180 ${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
183 .if ${__KLD_SHARED} == yes
184 ${FULLPROG}: ${KMOD}.kld
185 ${LD} -Bshareable ${_LDFLAGS} -o ${.TARGET} ${KMOD}.kld
186 .if !defined(DEBUG_FLAGS)
187 ${OBJCOPY} --strip-debug ${.TARGET}
192 .if ${EXPORT_SYMS} != YES
193 CLEANFILES+= export_syms
196 .if ${__KLD_SHARED} == yes
201 ${LD} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
202 .if ${MK_CTF} != "no"
203 ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
205 .if defined(EXPORT_SYMS)
206 .if ${EXPORT_SYMS} != YES
207 .if ${EXPORT_SYMS} == NO
209 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
210 echo ${EXPORT_SYMS} > export_syms
212 grep -v '^#' < ${EXPORT_SYMS} > export_syms
214 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
215 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
218 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
219 ${OBJCOPY} --strip-debug ${.TARGET}
223 .if ${MACHINE} != ${MACHINE_CPUARCH}
224 _ILINKS+=${MACHINE_CPUARCH}
226 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
229 CLEANFILES+=${_ILINKS}
233 beforedepend: ${_ILINKS}
235 # Ensure that the links exist without depending on it when it exists which
236 # causes all the modules to be rebuilt when the directory pointed to changes.
237 .for _link in ${_ILINKS}
238 .if !exists(${.OBJDIR}/${_link})
243 # Search for kernel source tree in standard places.
244 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
245 .if !defined(SYSDIR) && exists(${_dir}/kern/)
249 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
250 .error "can't find kernel source tree"
256 @case ${.TARGET} in \
258 path=${SYSDIR}/${MACHINE}/include ;; \
260 path=${SYSDIR}/${.TARGET:T}/include ;; \
262 path=`(cd $$path && /bin/pwd)` ; \
263 ${ECHO} ${.TARGET:T} "->" $$path ; \
264 ln -sf $$path ${.TARGET:T}
266 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
268 .if defined(DEBUG_FLAGS)
269 CLEANFILES+= ${FULLPROG} ${PROG}.debug
274 _INSTALLFLAGS:= ${INSTALLFLAGS}
275 .for ie in ${INSTALLFLAGS_EDIT}
276 _INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
279 .if !target(realinstall)
280 KERN_DEBUGDIR?= ${DEBUGDIR}
281 realinstall: _kmodinstall
282 .ORDER: beforeinstall _kmodinstall
284 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
285 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
286 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
287 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
288 ${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}
291 .include <bsd.links.mk>
293 .if !defined(NO_XREF)
294 afterinstall: _kldxref
295 .ORDER: realinstall _kldxref
296 .ORDER: _installlinks _kldxref
298 @if type kldxref >/dev/null 2>&1; then \
299 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
300 kldxref ${DESTDIR}${KMODDIR}; \
303 .endif # !target(realinstall)
305 .endif # !target(install)
309 ${KMODLOAD} -v ${.OBJDIR}/${PROG}
314 ${KMODUNLOAD} -v ${PROG}
317 .if defined(KERNBUILDDIR)
318 .PATH: ${KERNBUILDDIR}
319 CFLAGS+= -I${KERNBUILDDIR}
320 .for _src in ${SRCS:Mopt_*.h}
324 ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
328 .for _src in ${SRCS:Mopt_*.h}
337 # Respect configuration-specific C flags.
338 CFLAGS+= ${CONF_CFLAGS}
340 .if !empty(SRCS:Mvnode_if.c)
341 CLEANFILES+= vnode_if.c
342 vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
343 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
346 .if !empty(SRCS:Mvnode_if.h)
347 CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
348 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
349 ${SYSDIR}/kern/vnode_if.src
350 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
351 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
353 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
355 ${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
358 # Build _if.[ch] from _if.m, and clean them when we're done.
360 __MPATH!=find ${SYSDIR:tA}/ -name \*_if.m
361 _MPATH=${__MPATH:H:O:u}
364 .for _i in ${SRCS:M*_if.[ch]}
365 #removes too much, comment out until it's more constrained.
368 .m.c: ${SYSDIR}/tools/makeobjops.awk
369 ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
371 .m.h: ${SYSDIR}/tools/makeobjops.awk
372 ${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
374 .for _i in mii pccard
375 .if !empty(SRCS:M${_i}devs.h)
376 CLEANFILES+= ${_i}devs.h
377 ${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
378 ${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
382 .if !empty(SRCS:Musbdevs.h)
383 CLEANFILES+= usbdevs.h
384 usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
385 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
388 .if !empty(SRCS:Musbdevs_data.h)
389 CLEANFILES+= usbdevs_data.h
390 usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
391 ${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
394 .if !empty(SRCS:Macpi_quirks.h)
395 CLEANFILES+= acpi_quirks.h
396 acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
397 ${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
400 .if !empty(SRCS:Massym.s)
401 CLEANFILES+= assym.s genassym.o
403 .if defined(KERNBUILDDIR)
404 genassym.o: opt_global.h
406 assym.s: ${SYSDIR}/kern/genassym.sh
407 sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
408 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
409 genassym.o: ${SRCS:Mopt_*.h}
410 ${CC} -c ${CFLAGS:N-fno-common} \
411 ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
415 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c}
417 .if defined(KERNBUILDDIR)
418 ${OBJS}: opt_global.h
421 .include <bsd.dep.mk>
423 cleandepend: cleanilinks
424 # .depend needs include links so we remove them only together.
428 .if !exists(${.OBJDIR}/${DEPENDFILE})
429 ${OBJS}: ${SRCS:M*.h}
432 .include <bsd.obj.mk>