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# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
# $FreeBSD: release/9.1.0/sys/conf/kmod.mk 233099 2012-03-17 22:29:05Z dim $
#
# The include file <bsd.kmod.mk> handles building and installing loadable
# kernel modules.
#
#
# +++ variables +++
#
# CLEANFILES Additional files to remove for the clean and cleandir targets.
#
# EXPORT_SYMS A list of symbols that should be exported from the module,
# or the name of a file containing a list of symbols, or YES
# to export all symbols. If not defined, no symbols are
# exported.
#
# KMOD The name of the kernel module to build.
#
# KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel]
#
# KMODOWN Module file owner. [${BINOWN}]
#
# KMODGRP Module file group. [${BINGRP}]
#
# KMODMODE Module file mode. [${BINMODE}]
#
# KMODLOAD Command to load a kernel module [/sbin/kldload]
#
# KMODUNLOAD Command to unload a kernel module [/sbin/kldunload]
#
# MFILES Optionally a list of interfaces used by the module.
# This file contains a default list of interfaces.
#
# PROG The name of the kernel module to build.
# If not supplied, ${KMOD}.ko is used.
#
# SRCS List of source files.
#
# FIRMWS List of firmware images in format filename:shortname:version
#
# FIRMWARE_LICENSE
# Set to the name of the license the user has to agree on in
# order to use this firmware. See /usr/share/doc/legal
#
# DESTDIR The tree where the module gets installed. [not set]
#
# +++ targets +++
#
# install:
# install the kernel module; if the Makefile
# does not itself define the target install, the targets
# beforeinstall and afterinstall may also be used to cause
# actions immediately before and after the install target
# is executed.
#
# load:
# Load a module.
#
# unload:
# Unload a module.
#
# backwards compat option for older systems.
MACHINE_CPUARCH?=${MACHINE_ARCH:C/mipse[lb]/mips/:C/armeb/arm/:C/powerpc64/powerpc/}
AWK?= awk
KMODLOAD?= /sbin/kldload
KMODUNLOAD?= /sbin/kldunload
OBJCOPY?= objcopy
.if defined(KMODDEPS)
.error "Do not use KMODDEPS on 5.0+; use MODULE_VERSION/MODULE_DEPEND"
.endif
# Enable CTF conversion on request.
.if defined(WITH_CTF)
.undef NO_CTF
.endif
.include <bsd.init.mk>
.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
# amd64 and mips use direct linking for kmod, all others use shared binaries
.if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
__KLD_SHARED=yes
.else
__KLD_SHARED=no
.endif
.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
CFLAGS+= -fno-strict-aliasing
.endif
WERROR?= -Werror
CFLAGS+= ${WERROR}
CFLAGS+= -D_KERNEL
CFLAGS+= -DKLD_MODULE
# Don't use any standard or source-relative include directories.
CSTD= c99
NOSTDINC= -nostdinc
CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
.if defined(KERNBUILDDIR)
CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
.endif
# Add -I paths for system headers. Individual module makefiles don't
# need any -I paths for this. Similar defaults for .PATH can't be
# set because there are no standard paths for non-headers.
CFLAGS+= -I. -I@
# Add -I path for altq headers as they are included via net/if_var.h
# for example.
CFLAGS+= -I@/contrib/altq
.if ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang"
CFLAGS+= -finline-limit=${INLINE_LIMIT}
CFLAGS+= --param inline-unit-growth=100
CFLAGS+= --param large-function-growth=1000
.endif
# Disallow common variables, and if we end up with commons from
# somewhere unexpected, allocate storage for them in the module itself.
CFLAGS+= -fno-common
LDFLAGS+= -d -warn-common
CFLAGS+= ${DEBUG_FLAGS}
.if ${MACHINE_CPUARCH} == amd64
CFLAGS+= -fno-omit-frame-pointer
.endif
.if ${MACHINE_CPUARCH} == powerpc
CFLAGS+= -mlongcall -fno-omit-frame-pointer
.endif
.if ${MACHINE_CPUARCH} == mips
CFLAGS+= -G0 -fno-pic -mno-abicalls -mlong-calls
.endif
.if defined(DEBUG) || defined(DEBUG_FLAGS)
CTFFLAGS+= -g
.endif
.if defined(FIRMWS)
.if !exists(@)
${KMOD:S/$/.c/}: @
.else
${KMOD:S/$/.c/}: @/tools/fw_stub.awk
.endif
${AWK} -f @/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
SRCS+= ${KMOD:S/$/.c/}
CLEANFILES+= ${KMOD:S/$/.c/}
.for _firmw in ${FIRMWS}
${_firmw:C/\:.*$/.fwo/}: ${_firmw:C/\:.*$//}
@${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
@if [ -e ${_firmw:C/\:.*$//} ]; then \
${LD} -b binary --no-warn-mismatch ${LDFLAGS} \
-r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \
else \
ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
${LD} -b binary --no-warn-mismatch ${LDFLAGS} \
-r -d -o ${.TARGET} ${_firmw:C/\:.*$//}; \
rm ${_firmw:C/\:.*$//}; \
fi
OBJS+= ${_firmw:C/\:.*$/.fwo/}
.endfor
.endif
OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
.if !defined(PROG)
PROG= ${KMOD}.ko
.endif
.if !defined(DEBUG_FLAGS)
FULLPROG= ${PROG}
.else
FULLPROG= ${PROG}.debug
${PROG}: ${FULLPROG} ${PROG}.symbols
${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.symbols\
${FULLPROG} ${.TARGET}
${PROG}.symbols: ${FULLPROG}
${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
.endif
.if ${__KLD_SHARED} == yes
${FULLPROG}: ${KMOD}.kld
${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
.if !defined(DEBUG_FLAGS)
${OBJCOPY} --strip-debug ${.TARGET}
.endif
.endif
EXPORT_SYMS?= NO
.if ${EXPORT_SYMS} != YES
CLEANFILES+= export_syms
.endif
.if ${__KLD_SHARED} == yes
${KMOD}.kld: ${OBJS}
.else
${FULLPROG}: ${OBJS}
.endif
${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
@[ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
.if defined(EXPORT_SYMS)
.if ${EXPORT_SYMS} != YES
.if ${EXPORT_SYMS} == NO
:> export_syms
.elif !exists(${.CURDIR}/${EXPORT_SYMS})
echo ${EXPORT_SYMS} > export_syms
.else
grep -v '^#' < ${EXPORT_SYMS} > export_syms
.endif
awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
.endif
.endif
.if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
${OBJCOPY} --strip-debug ${.TARGET}
.endif
_ILINKS=@ machine
.if ${MACHINE} != ${MACHINE_CPUARCH}
_ILINKS+=${MACHINE_CPUARCH}
.endif
.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
_ILINKS+=x86
.endif
all: objwarn ${PROG}
beforedepend: ${_ILINKS}
# Ensure that the links exist without depending on it when it exists which
# causes all the modules to be rebuilt when the directory pointed to changes.
.for _link in ${_ILINKS}
.if !exists(${.OBJDIR}/${_link})
${OBJS}: ${_link}
.endif
.endfor
# Search for kernel source tree in standard places.
.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
.if !defined(SYSDIR) && exists(${_dir}/kern/)
SYSDIR= ${_dir}
.endif
.endfor
.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
.error "can't find kernel source tree"
.endif
${_ILINKS}:
@case ${.TARGET} in \
machine) \
path=${SYSDIR}/${MACHINE}/include ;; \
@) \
path=${SYSDIR} ;; \
*) \
path=${SYSDIR}/${.TARGET}/include ;; \
esac ; \
path=`(cd $$path && /bin/pwd)` ; \
${ECHO} ${.TARGET} "->" $$path ; \
ln -sf $$path ${.TARGET}
CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
.if defined(DEBUG_FLAGS)
CLEANFILES+= ${FULLPROG} ${PROG}.symbols
.endif
.if !target(install)
_INSTALLFLAGS:= ${INSTALLFLAGS}
.for ie in ${INSTALLFLAGS_EDIT}
_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
.endfor
.if !target(realinstall)
realinstall: _kmodinstall
.ORDER: beforeinstall _kmodinstall
_kmodinstall:
${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && \
(defined(MK_KERNEL_SYMBOLS) && ${MK_KERNEL_SYMBOLS} != "no")
${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR}
.endif
.include <bsd.links.mk>
.if !defined(NO_XREF)
afterinstall: _kldxref
.ORDER: realinstall _kldxref
.ORDER: _installlinks _kldxref
_kldxref:
@if type kldxref >/dev/null 2>&1; then \
${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
kldxref ${DESTDIR}${KMODDIR}; \
fi
.endif
.endif # !target(realinstall)
.endif # !target(install)
.if !target(load)
load: ${PROG}
${KMODLOAD} -v ${.OBJDIR}/${PROG}
.endif
.if !target(unload)
unload:
${KMODUNLOAD} -v ${PROG}
.endif
.if defined(KERNBUILDDIR)
.PATH: ${KERNBUILDDIR}
CFLAGS+= -I${KERNBUILDDIR}
.for _src in ${SRCS:Mopt_*.h}
CLEANFILES+= ${_src}
.if !target(${_src})
${_src}:
ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
.endif
.endfor
.else
.for _src in ${SRCS:Mopt_*.h}
CLEANFILES+= ${_src}
.if !target(${_src})
${_src}:
:> ${.TARGET}
.endif
.endfor
.endif
# Respect configuration-specific C flags.
CFLAGS+= ${CONF_CFLAGS}
MFILES?= dev/acpica/acpi_if.m dev/acpi_support/acpi_wmi_if.m \
dev/agp/agp_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \
dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \
dev/mmc/mmcbr_if.m dev/mmc/mmcbus_if.m \
dev/mii/miibus_if.m dev/mvs/mvs_if.m dev/ofw/ofw_bus_if.m \
dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \
dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \
dev/sound/pci/hda/hdac_if.m \
dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m \
dev/sound/midi/mpu_if.m dev/sound/midi/mpufoi_if.m \
dev/sound/midi/synth_if.m dev/usb/usb_if.m isa/isa_if.m \
kern/bus_if.m kern/clock_if.m \
kern/cpufreq_if.m kern/device_if.m kern/serdev_if.m \
libkern/iconv_converter_if.m opencrypto/cryptodev_if.m \
pc98/pc98/canbus_if.m
.for _srcsrc in ${MFILES}
.for _ext in c h
.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
CLEANFILES+= ${_src}
.if !target(${_src})
.if !exists(@)
${_src}: @
.else
${_src}: @/tools/makeobjops.awk @/${_srcsrc}
.endif
${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext}
.endif
.endfor # _src
.endfor # _ext
.endfor # _srcsrc
.if !empty(SRCS:Mvnode_if.c)
CLEANFILES+= vnode_if.c
.if !exists(@)
vnode_if.c: @
.else
vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src
.endif
${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c
.endif
.if !empty(SRCS:Mvnode_if.h)
CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
.if !exists(@)
vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @
.else
vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \
@/kern/vnode_if.src
.endif
vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h
vnode_if_newproto.h:
${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p
vnode_if_typedef.h:
${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q
.endif
.for _i in mii pccard
.if !empty(SRCS:M${_i}devs.h)
CLEANFILES+= ${_i}devs.h
.if !exists(@)
${_i}devs.h: @
.else
${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs
.endif
${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs
.endif
.endfor # _i
.if !empty(SRCS:Musbdevs.h)
CLEANFILES+= usbdevs.h
.if !exists(@)
usbdevs.h: @
.else
usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs
.endif
${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h
.endif
.if !empty(SRCS:Musbdevs_data.h)
CLEANFILES+= usbdevs_data.h
.if !exists(@)
usbdevs_data.h: @
.else
usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs
.endif
${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d
.endif
.if !empty(SRCS:Macpi_quirks.h)
CLEANFILES+= acpi_quirks.h
.if !exists(@)
acpi_quirks.h: @
.else
acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks
.endif
${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks
.endif
.if !empty(SRCS:Massym.s)
CLEANFILES+= assym.s genassym.o
assym.s: genassym.o
.if defined(KERNBUILDDIR)
genassym.o: opt_global.h
.endif
.if !exists(@)
assym.s: @
.else
assym.s: @/kern/genassym.sh
.endif
sh @/kern/genassym.sh genassym.o > ${.TARGET}
.if exists(@)
genassym.o: @/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c
.endif
genassym.o: @ machine ${SRCS:Mopt_*.h}
${CC} -c ${CFLAGS:N-fno-common} \
@/${MACHINE_CPUARCH}/${MACHINE_CPUARCH}/genassym.c
.endif
lint: ${SRCS}
${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c}
.if defined(KERNBUILDDIR)
${OBJS}: opt_global.h
.endif
.include <bsd.dep.mk>
cleandepend: cleanilinks
# .depend needs include links so we remove them only together.
cleanilinks:
rm -f ${_ILINKS}
.if !exists(${.OBJDIR}/${DEPENDFILE})
${OBJS}: ${SRCS:M*.h}
.endif
.include <bsd.obj.mk>
.include "kern.mk"