freebsd-nq/sys/conf/kmod.mk
Peter Wemm e0301e5d4b Make ../Makefile.inc handling more consistant to prevent multiple includes
when certain .mk files include other .mk files.  This will remove the
need for multiple include protection in some other makefiles around the
tree (and helps some elf conditionals).
1998-08-08 07:02:08 +00:00

257 lines
6.2 KiB
Makefile

# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
# $Id: bsd.kmod.mk,v 1.50 1998/07/29 14:19:48 bde Exp $
#
# 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]
#
# EXPORT_SYMS ???
#
# KERN Main Kernel source directory. [${.CURDIR}/../../sys/kern]
#
# KMOD The name of the loadable kernel module to build.
#
# KMODDIR Base path for loadable kernel modules
# (see lkm(4)). [/lkm]
#
# KMODOWN LKM owner. [${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
# /lkm/master and /lkm/meister, use:
#
# LINKS= /lkm/master /lkm/meister
#
# LN_FLAGS Flags for ln(1) (see variable LINKS)
#
# 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, ${KMOD}.o is used.
#
# PSEUDO_LKM ???
#
# SRCS List of source files
#
# SUBDIR A list of subdirectories that should be built as well.
# Each of the targets will execute the same target in the
# subdirectories.
#
# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
#
#
# +++ targets +++
#
# distribute:
# This is a variant of install, which will
# put the stuff into the right "distribution".
#
# install:
# install the program and its manual pages; if the Makefile
# does not itself define the target install, the targets
# beforeinstall and afterinstall may also be used to cause
# actions immediately before and after the install target
# is executed.
#
# load:
# Load LKM.
#
# unload:
# Unload LKM.
#
# bsd.obj.mk: clean, cleandir and obj
# bsd.dep.mk: cleandepend, depend and tags
# bsd.man.mk: maninstall
#
MODLOAD?= /sbin/modload
MODUNLOAD?= /sbin/modunload
.if !target(__initialized__)
__initialized__:
.if exists(${.CURDIR}/../Makefile.inc)
.include "${.CURDIR}/../Makefile.inc"
.endif
.endif
.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
CFLAGS+= ${COPTS} -DKERNEL -DACTUALLY_LKM_NOT_KERNEL ${CWARNFLAGS}
# 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(NOSHARED) && ( ${NOSHARED} != "no" && ${NOSHARED} != "NO" )
LDFLAGS+= -static
.endif
EXPORT_SYMS?= _${KMOD}
.if defined(VFS_LKM)
CFLAGS+= -DVFS_LKM -DMODVNOPS=${KMOD}vnops
SRCS+= vnode_if.h
CLEANFILES+= vnode_if.h vnode_if.c
.endif
.if defined(PSEUDO_LKM)
CFLAGS+= -DPSEUDO_LKM
.endif
OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
.if !defined(PROG)
PROG= ${KMOD}.o
.endif
${PROG}: ${OBJS} ${DPADD}
${LD} -r ${LDFLAGS:N-static} -o tmp.o ${OBJS}
.if defined(EXPORT_SYMS)
rm -f symb.tmp
for i in ${EXPORT_SYMS} ; do echo $$i >> symb.tmp ; done
symorder -c symb.tmp tmp.o
rm -f symb.tmp
.endif
mv tmp.o ${.TARGET}
.if !defined(NOMAN)
.include <bsd.man.mk>
.if !defined(_MANPAGES) || empty(_MANPAGES)
MAN1= ${KMOD}.4
.endif
.elif !target(maninstall)
maninstall: _SUBDIR
all-man:
.endif
_ILINKS=@ machine
.MAIN: all
all: objwarn ${PROG} all-man _SUBDIR
beforedepend ${OBJS}: ${_ILINKS}
# The search for the link targets works best if we are in a normal src
# tree, and not too deeply below src/lkm. If we are near "/", then
# we may find /sys - this is harmless. Other abnormal "sys" directories
# found in the search are likely to cause problems. If nothing is found,
# then the links default to /usr/include and /usr/include/machine.
${_ILINKS}:
@for up in ../.. ../../.. ; do \
case ${.TARGET} in \
machine) \
path=${.CURDIR}/$$up/sys/${MACHINE_ARCH}/include ; \
defaultpath=/usr/include/machine ;; \
@) \
path=${.CURDIR}/$$up/sys ; \
defaultpath=/usr/include ;; \
esac ; \
if [ -d $$path ] ; then break ; fi ; \
path=$$defaultpath ; \
done ; \
path=`(cd $$path && /bin/pwd)` ; \
${ECHO} ${.TARGET} "->" $$path ; \
ln -s $$path ${.TARGET}
CLEANFILES+= ${KMOD} ${PROG} ${OBJS} ${_ILINKS} lkm_verify_tmp symb.tmp tmp.o
.if !target(install)
.if !target(beforeinstall)
beforeinstall:
.endif
.if !target(afterinstall)
afterinstall:
.endif
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 -\> $$l; \
rm -f $$t; \
ln ${LN_FLAGS} $$l $$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
KERN= ${.CURDIR}/../../sys/kern
vnode_if.h: ${KERN}/vnode_if.sh ${KERN}/vnode_if.src
sh ${KERN}/vnode_if.sh ${KERN}/vnode_if.src
_sysregress: ${_INLINKS} ${PROG}
ld -A /sys/compile/LKM/kernel ${PROG} ${DEPLKMS} -o lkm_verify_tmp
rm lkm_verify_tmp
regress: _sysregress
.include <bsd.dep.mk>
.if !exists(${DEPENDFILE})
${OBJS}: ${SRCS:M*.h}
.endif
.include <bsd.obj.mk>
.include <bsd.kern.mk>