freebsd-dev/sys/conf/kmod.mk

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# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
1999-08-28 00:22:10 +00:00
# $FreeBSD$
#
# 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
#
# 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.
#
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
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.include <bsd.init.mk>
.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
.if ${CC} == "icc"
CFLAGS:= ${CFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
.else
. if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
CFLAGS+= -fno-strict-aliasing
. endif
WERROR?= -Werror
.endif
CFLAGS+= ${WERROR}
CFLAGS+= -D_KERNEL
CFLAGS+= -DKLD_MODULE
# Don't use any standard or source-relative include directories.
.if ${CC} == "icc"
NOSTDINC= -X
.else
NOSTDINC= -nostdinc
.endif
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CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} -I- ${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 ${CC} != "icc"
CFLAGS+= -finline-limit=${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.
.if ${CC} != "icc"
CFLAGS+= -fno-common
.endif
LDFLAGS+= -d -warn-common
CFLAGS+= ${DEBUG_FLAGS}
.if ${MACHINE_ARCH} == amd64
CFLAGS+= -fno-omit-frame-pointer
.endif
.if ${MACHINE_ARCH} == "powerpc"
CFLAGS+= -mlongcall -fno-omit-frame-pointer
.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}
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 ${LDFLAGS} -r -d -o ${.TARGET} \
${_firmw:C/\:.*$//}; \
else \
ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
${LD} -b binary ${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 ${MACHINE_ARCH} != amd64
${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 ${MACHINE_ARCH} != amd64
${KMOD}.kld: ${OBJS}
.else
${FULLPROG}: ${OBJS}
.endif
${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
.if defined(EXPORT_SYMS)
.if ${EXPORT_SYMS} != YES
.if ${EXPORT_SYMS} == NO
touch export_syms
.elif !exists(${.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) && ${MACHINE_ARCH} == amd64
${OBJCOPY} --strip-debug ${.TARGET}
.endif
_ILINKS=@ machine
.if ${MACHINE} != ${MACHINE_ARCH}
_ILINKS+=${MACHINE_ARCH}
.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 \
${MACHINE_ARCH}) \
path=${SYSDIR}/${MACHINE_ARCH}/include ;; \
machine) \
path=${SYSDIR}/${MACHINE}/include ;; \
@) \
path=${SYSDIR} ;; \
esac ; \
path=`(cd $$path && /bin/pwd)` ; \
${ECHO} ${.TARGET} "->" $$path ; \
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ln -sf $$path ${.TARGET}
CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS}
.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)
${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
${_INSTALLFLAGS} ${PROG}.symbols ${DESTDIR}${KMODDIR}
.endif
.include <bsd.links.mk>
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.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}:
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ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
.endif
.endfor
.else
.for _src in ${SRCS:Mopt_*.h}
CLEANFILES+= ${_src}
.if !target(${_src})
${_src}:
touch ${.TARGET}
.endif
.endfor
.endif
This is the much rumoured ATA mkIII update that I've been working on. o ATA is now fully newbus'd and split into modules. This means that on a modern system you just load "atapci and ata" to get the base support, and then one or more of the device subdrivers "atadisk atapicd atapifd atapist ataraid". All can be loaded/unloaded anytime, but for obvious reasons you dont want to unload atadisk when you have mounted filesystems. o The device identify part of the probe has been rewritten to fix the problems with odd devices the old had, and to try to remove so of the long delays some HW could provoke. Also probing is done without the need for interrupts, making earlier probing possible. o SATA devices can be hot inserted/removed and devices will be created/ removed in /dev accordingly. NOTE: only supported on controllers that has this feature: Promise and Silicon Image for now. On other controllers the usual atacontrol detach/attach dance is still needed. o Support for "atomic" composite ATA requests used for RAID. o ATA RAID support has been rewritten and and now supports these metadata formats: "Adaptec HostRAID" "Highpoint V2 RocketRAID" "Highpoint V3 RocketRAID" "Intel MatrixRAID" "Integrated Technology Express" "LSILogic V2 MegaRAID" "LSILogic V3 MegaRAID" "Promise FastTrak" "Silicon Image Medley" "FreeBSD PseudoRAID" o Update the ioctl API to match new RAID levels etc. o Update atacontrol to know about the new RAID levels etc NOTE: you need to recompile atacontrol with the new sys/ata.h, make world will take care of that. NOTE2: that rebuild is done differently from the old system as the rebuild is now done piggybacked on read requests to the array, so atacontrol simply starts a background "dd" to rebuild the array. o The reinit code has been worked over to be much more robust. o The timeout code has been overhauled for races. o Support of new chipsets. o Lots of fixes for bugs found while doing the modulerization and reviewing the old code. Missing or changed features from current ATA: o atapi-cd no longer has support for ATAPI changers. Todays its much cheaper and alot faster to copy those CD images to disk and serve them from there. Besides they dont seem to be made anymore, maybe for that exact reason. o ATA RAID can only read metadata from all the above metadata formats, not write all of them (Promise and Highpoint V2 so far). This means that arrays can be picked up from the BIOS, but they cannot be created from FreeBSD. There is more to it than just the missing write metadata support, those formats are not unique to a given controller like Promise and Highpoint formats, instead they exist for several types, and even worse, some controllers can have different formats and its impossible to tell which one. The outcome is that we cannot reliably create the metadata of those formats and be sure the controller BIOS will understand it. However write support is needed to update/fail/rebuild the arrays properly so it sits fairly high on the TODO list. o So far atapicam is not supported with these changes. When/if this will change is up to the maintainer of atapi-cam so go there for questions. HW donated by: Webveveriet AS HW donated by: Frode Nordahl HW donated by: Yahoo! HW donated by: Sentex Patience by: Vife and my boys (and even the cats)
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MFILES?= dev/acpica/acpi_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \
dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \
dev/mii/miibus_if.m dev/ofw/ofw_bus_if.m \
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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/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/cpufreq_if.m kern/device_if.m kern/serdev_if.m \
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libkern/iconv_converter_if.m opencrypto/crypto_if.m \
pc98/pc98/canbus_if.m pci/agp_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
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.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
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.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:
${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q
.endif
.for _i in mii pccard
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.if !empty(SRCS:M${_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
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.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
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.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
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.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
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.if !empty(SRCS:Massym.s)
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CLEANFILES+= assym.s genassym.o
assym.s: genassym.o
.if !exists(@)
assym.s: @
.else
assym.s: @/kern/genassym.sh
.endif
sh @/kern/genassym.sh genassym.o > ${.TARGET}
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.if exists(@)
genassym.o: @/${MACHINE_ARCH}/${MACHINE_ARCH}/genassym.c
.endif
genassym.o: @ machine ${SRCS:Mopt_*.h}
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${CC} -c ${CFLAGS:N-fno-common} \
@/${MACHINE_ARCH}/${MACHINE_ARCH}/genassym.c
.endif
lint: ${SRCS}
${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c}
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.include <bsd.dep.mk>
.if !exists(${.OBJDIR}/${DEPENDFILE})
${OBJS}: ${SRCS:M*.h}
.endif
.include <bsd.obj.mk>
.include "kern.mk"