freebsd-nq/sys/conf/kmod.mk
1999-08-28 00:22:10 +00:00

278 lines
6.7 KiB
Makefile

# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
# $FreeBSD$
#
# The include file <bsd.kmod.mk> handles installing Loadable Kernel Modules.
#
#
# +++ variables +++
#
# CLEANFILES Additional files to remove for the clean and cleandir targets.
#
# DISTRIBUTION Name of distribution. [bin]
#
# KERN Main Kernel source directory. [${.CURDIR}/../../sys/kern]
#
# KMOD The name of the loadable kernel module to build.
#
# KMODDIR Base path for loadable kernel modules
# (see kld(4)). [/modules]
#
# KMODOWN LKM owner. [${BINOWN}]
#
# KMODGRP LKM group. [${BINGRP}]
#
# KMODMODE LKM mode. [${BINMODE}]
#
# LINKS The list of LKM links; should be full pathnames, the
# linked-to file coming first, followed by the linked
# file. The files are hard-linked. For example, to link
# /modules/master and /modules/meister, use:
#
# LINKS= /modules/master /modules/meister
#
# MODLOAD Command to load a kernel module [/sbin/modload]
#
# MODUNLOAD Command to unload a kernel module [/sbin/modunload]
#
# NOMAN LKM does not have a manual page if set.
#
# PROG The name of the loadable kernel module to build.
# If not supplied, ${KMOD}.o is used.
#
# SRCS List of source files
#
# KMODDEPS List of modules which this one is dependant on
#
# SUBDIR A list of subdirectories that should be built as well.
# Each of the targets will execute the same target in the
# subdirectories.
#
# SYMLINKS Same as LINKS, except it creates symlinks and the
# linked-to pathname may be relative.
#
# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
#
#
# +++ targets +++
#
# distribute:
# This is a variant of install, which will
# put the stuff into the right "distribution".
#
# install:
# install the program and its manual pages; if the Makefile
# does not itself define the target install, the targets
# beforeinstall and afterinstall may also be used to cause
# actions immediately before and after the install target
# is executed.
#
# load:
# Load LKM.
#
# unload:
# Unload LKM.
#
# bsd.obj.mk: clean, cleandir and obj
# bsd.dep.mk: cleandepend, depend and tags
# bsd.man.mk: maninstall
#
MODLOAD?= /sbin/modload
MODUNLOAD?= /sbin/modunload
.if !target(__initialized__)
__initialized__:
.if exists(${.CURDIR}/../Makefile.inc)
.include "${.CURDIR}/../Makefile.inc"
.endif
.endif
.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
CFLAGS+= ${COPTS} -DKERNEL ${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- ${_ICFLAGS}
# Add -I paths for system headers. Individual LKM makefiles don't
# need any -I paths for this. Similar defaults for .PATH can't be
# set because there are no standard paths for non-headers.
CFLAGS+= -I${.OBJDIR} -I${.OBJDIR}/@
# XXX this is now dubious.
.if defined(DESTDIR)
CFLAGS+= -I${DESTDIR}/usr/include
.endif
.if defined(VFS_KLD)
SRCS+= vnode_if.h
CLEANFILES+= vnode_if.h vnode_if.c
.endif
.if ${OBJFORMAT} == elf
CLEANFILES+= setdef0.c setdef1.c setdefs.h
CLEANFILES+= setdef0.o setdef1.o
.endif
OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
.if !defined(PROG)
PROG= ${KMOD}.ko
.endif
${PROG}: ${OBJS} ${DPADD} ${KMODDEPS}
.if ${OBJFORMAT} == elf
gensetdefs ${OBJS}
${CC} ${CFLAGS} -c setdef0.c
${CC} ${CFLAGS} -c setdef1.c
${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} setdef0.o ${OBJS} setdef1.o ${KMODDEPS}
.else
${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${OBJS} ${KMODDEPS}
.endif
.if defined(KMODDEPS)
.for dep in ${KMODDEPS}
CLEANFILES+= ${dep} __${dep}_hack_dep.c
${dep}:
touch __${dep}_hack_dep.c
${CC} -shared ${CFLAGS} -o ${dep} __${dep}_hack_dep.c
.endfor
.endif
.if !defined(NOMAN)
.include <bsd.man.mk>
.if !defined(_MANPAGES) || empty(_MANPAGES)
MAN1= ${KMOD}.4
.endif
.elif !target(maninstall)
maninstall: _SUBDIR
all-man:
.endif
_ILINKS=@ machine
.MAIN: all
all: objwarn ${PROG} all-man _SUBDIR
beforedepend ${OBJS}: ${_ILINKS}
# The search for the link targets works best if we are in a normal src
# tree, and not too deeply below src/sys/modules. If we are near "/", then
# we may find /sys - this is harmless. Other abnormal "sys" directories
# found in the search are likely to cause problems. If nothing is found,
# then the links default to /usr/include and /usr/include/machine.
${_ILINKS}:
@set +x; for up in ../.. ../../.. ; do \
case ${.TARGET} in \
machine) \
testpath=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
path=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
defaultpath=/usr/include/machine ;; \
@) \
testpath=${.CURDIR}/$$up/sys ; \
path=${.CURDIR}/$$up ; \
defaultpath=/usr/include ;; \
esac ; \
if [ -d $$testpath ] ; then break ; fi ; \
path=$$defaultpath ; \
done ; \
path=`(cd $$path && /bin/pwd)` ; \
${ECHO} ${.TARGET} "->" $$path ; \
ln -s $$path ${.TARGET}
CLEANFILES+= ${PROG} ${OBJS} ${_ILINKS} symb.tmp tmp.o
.if !target(install)
.if !target(beforeinstall)
beforeinstall:
.endif
.if !target(afterinstall)
afterinstall:
.endif
_INSTALLFLAGS:= ${INSTALLFLAGS}
.for ie in ${INSTALLFLAGS_EDIT}
_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
.endfor
realinstall: _SUBDIR
${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
.if defined(LINKS) && !empty(LINKS)
@set ${LINKS}; \
while test $$# -ge 2; do \
l=${DESTDIR}$$1; \
shift; \
t=${DESTDIR}$$1; \
shift; \
${ECHO} $$t -\> $$l; \
ln -f $$l $$t; \
done; true
.endif
.if defined(SYMLINKS) && !empty(SYMLINKS)
@set ${SYMLINKS}; \
while test $$# -ge 2; do \
l=$$1; \
shift; \
t=${DESTDIR}$$1; \
shift; \
${ECHO} $$t -\> $$l; \
ln -fs $$l $$t; \
done; true
.endif
install: afterinstall _SUBDIR
.if !defined(NOMAN)
afterinstall: realinstall maninstall
.else
afterinstall: realinstall
.endif
realinstall: beforeinstall
.endif
DISTRIBUTION?= bin
.if !target(distribute)
distribute: _SUBDIR
.for dist in ${DISTRIBUTION}
cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
.endfor
.endif
.if !target(load)
load: ${PROG}
${MODLOAD} -o ${KMOD} -e${KMOD} ${PROG}
.endif
.if !target(unload)
unload: ${PROG}
${MODUNLOAD} -n ${KMOD}
.endif
.if exists(${.CURDIR}/../../kern)
KERN= ${.CURDIR}/../../kern
.else
KERN= ${.CURDIR}/../../sys/kern
.endif
vnode_if.h: ${KERN}/vnode_if.sh ${KERN}/vnode_if.src
sh ${KERN}/vnode_if.sh ${KERN}/vnode_if.src
regress:
.include <bsd.dep.mk>
.if !exists(${DEPENDFILE})
${OBJS}: ${SRCS:M*.h}
.endif
.include <bsd.obj.mk>
.include <bsd.kern.mk>