freebsd-dev/sys/conf/kmod.mk
Jake Burkholder f2de139378 Don't run kldxref when installing modules on sparc64. kldxref and the whole
module dependency system rely on linker behaviour that is machine dependent
and not part of the elf spec, and only work by accident on other platforms.

Approved by:	re
2002-12-13 00:32:29 +00:00

302 lines
7.3 KiB
Makefile

# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
# $FreeBSD$
#
# The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
# drivers (KLD's).
#
#
# +++ variables +++
#
# CLEANFILES Additional files to remove for the clean and cleandir targets.
#
# KMOD The name of the kernel module to build.
#
# KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel]
#
# KMODOWN KLD owner. [${BINOWN}]
#
# KMODGRP KLD group. [${BINGRP}]
#
# KMODMODE KLD mode. [${BINMODE}]
#
# KMODLOAD Command to load a kernel module [/sbin/kldload]
#
# KMODUNLOAD Command to unload a kernel module [/sbin/kldunload]
#
# PROG The name of the kernel module to build.
# If not supplied, ${KMOD}.o is used.
#
# SRCS List of source files
#
# DESTDIR Change the tree where the module gets installed. [not set]
#
# MFILES Optionally a list of interfaces used by the module.
# This file contains a default list of interfaces.
#
# 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.
#
# +++ 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 KLD.
#
# unload:
# Unload KLD.
#
# bsd.obj.mk: clean, cleandir and obj
# bsd.dep.mk: cleandepend, depend and tags
#
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
.include <bsd.init.mk>
.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
CFLAGS+= ${COPTS} -D_KERNEL ${CWARNFLAGS}
CFLAGS+= -DKLD_MODULE
# Don't use any standard or source-relative include directories.
# Since -nostdinc will annull any previous -I paths, we repeat all
# such paths after -nostdinc. It doesn't seem to be possible to
# add to the front of `make' variable.
_ICFLAGS:= ${CFLAGS:M-I*}
CFLAGS+= -nostdinc -I- ${INCLMAGIC} ${_ICFLAGS}
# Add -I paths for system headers. Individual KLD makefiles don't
# need any -I paths for this. Similar defaults for .PATH can't be
# set because there are no standard paths for non-headers.
CFLAGS+= -I. -I@ -I@/dev
# Add a -I path to standard headers like <stddef.h>. Use a relative
# path to src/include if possible. If the @ symlink hasn't been built
# yet, then we can't tell if the relative path exists. Add both the
# potential relative path and an absolute path in that case.
.if exists(@)
.if exists(@/../include)
CFLAGS+= -I@/../include
.else
CFLAGS+= -I${DESTDIR}/usr/include
.endif
.else # !@
CFLAGS+= -I@/../include -I${DESTDIR}/usr/include
.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}
OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
.if !defined(PROG)
PROG= ${KMOD}.ko
.endif
.if !defined(DEBUG)
FULLPROG= ${PROG}
.else
FULLPROG= ${PROG}.debug
${PROG}: ${FULLPROG}
${OBJCOPY} --strip-debug ${FULLPROG} ${PROG}
.endif
${FULLPROG}: ${KMOD}.kld
${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
EXPORT_SYMS?= NO
.if ${EXPORT_SYMS} != YES
CLEANFILES+= ${.OBJDIR}/export_syms
.endif
${KMOD}.kld: ${OBJS}
${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
.if defined(EXPORT_SYMS)
.if ${EXPORT_SYMS} != YES
.if ${EXPORT_SYMS} == NO
touch ${.OBJDIR}/export_syms
.elif !exists(${.CURDIR}/${EXPORT_SYMS})
echo ${EXPORT_SYMS} > ${.OBJDIR}/export_syms
.else
grep -v '^#' < ${EXPORT_SYMS} > ${.OBJDIR}/export_syms
.endif
awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
${.OBJDIR}/export_syms | \
xargs -J% ${OBJCOPY} % ${.TARGET}
.endif
.endif
_ILINKS=@ machine
all: objwarn ${PROG}
beforedepend: ${_ILINKS}
@rm -f .depend
# 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}/${MACHINE_ARCH}/include ;; \
@) \
path=${SYSDIR} ;; \
esac ; \
path=`(cd $$path && /bin/pwd)` ; \
${ECHO} ${.TARGET} "->" $$path ; \
ln -s $$path ${.TARGET}
CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
.if defined(DEBUG)
CLEANFILES+= ${FULLPROG}
.endif
.if !target(install)
_INSTALLFLAGS:= ${INSTALLFLAGS}
.for ie in ${INSTALLFLAGS_EDIT}
_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
.endfor
.if defined(DEBUG)
install.debug:
cd ${.CURDIR}; ${MAKE} -DINSTALL_DEBUG install
.endif
.if !target(realinstall)
realinstall: _kmodinstall
.ORDER: beforeinstall _kmodinstall
.if defined(DEBUG) && defined(INSTALL_DEBUG)
_kmodinstall:
${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
${_INSTALLFLAGS} ${FULLPROG} ${DESTDIR}${KMODDIR}
.else
_kmodinstall:
${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
.include <bsd.links.mk>
.if !defined(NO_XREF) && ${MACHINE_ARCH} != "sparc64"
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
.endif !target(realinstall)
.endif !target(install)
.if !target(load)
load: ${PROG}
${KMODLOAD} -v ${.OBJDIR}/${KMOD}.ko
.endif
.if !target(unload)
unload:
${KMODUNLOAD} -v ${KMOD}
.endif
.for _src in ${SRCS:Mopt_*.h}
CLEANFILES+= ${_src}
.if !target(${_src})
${_src}:
touch ${.TARGET}
.endif
.endfor
MFILES?= kern/bus_if.m kern/device_if.m dev/iicbus/iicbb_if.m \
dev/iicbus/iicbus_if.m isa/isa_if.m \
libkern/iconv_converter_if.m \
dev/mii/miibus_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/usb/usb_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 pci/agp_if.m \
opencrypto/crypto_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}: @
.endif
.if exists(@)
${_src}: @/tools/makeobjops.awk @/${_srcsrc}
.endif
${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext}
.endif
.endfor # _src
.endfor # _ext
.endfor # _srcsrc
.for _ext in c h
.if ${SRCS:Mvnode_if.${_ext}} != ""
CLEANFILES+= vnode_if.${_ext}
.if !exists(@)
vnode_if.${_ext}: @
.endif
.if exists(@)
vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
.endif
${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -${_ext}
.endif
.endfor
regress:
lint: ${SRCS}
${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c}
.include <bsd.dep.mk>
.if !exists(${DEPENDFILE})
${OBJS}: ${SRCS:M*.h}
.endif
.include <bsd.obj.mk>
.include <bsd.kern.mk>