NetBSD/share/mk/bsd.kmodule.mk
2011-09-11 18:38:02 +00:00

145 lines
3.8 KiB
Makefile

# $NetBSD: bsd.kmodule.mk,v 1.33 2011/09/11 18:38:03 mbalmer Exp $
# We are not building this with PIE
MKPIE=no
.include <bsd.init.mk>
.include <bsd.klinks.mk>
.include <bsd.sys.mk>
##### Basic targets
realinstall: kmodinstall
KERN= $S/kern
CFLAGS+= -ffreestanding ${COPTS}
CPPFLAGS+= -nostdinc -I. -I${.CURDIR} -isystem $S -isystem $S/arch
CPPFLAGS+= -isystem ${S}/../common/include
CPPFLAGS+= -D_KERNEL -D_LKM -D_MODULE -DSYSCTL_INCLUDE_DESCR
# XXX until the kernel is fixed again...
.if defined(HAVE_GCC) || defined(HAVE_PCC)
CFLAGS+= -fno-strict-aliasing -Wno-pointer-sign
.endif
# XXX This is a workaround for platforms that have relative relocations
# that, when relocated by the module loader, result in addresses that
# overflow the size of the relocation (e.g. R_PPC_REL24 in powerpc).
# The real solution to this involves generating trampolines for those
# relocations inside the loader and removing this workaround, as the
# resulting code would be much faster.
.if ${MACHINE_CPU} == "arm"
CFLAGS+= -mlong-calls
.elif ${MACHINE_CPU} == "powerpc"
CFLAGS+= -mlongcall
.elif ${MACHINE_CPU} == "vax"
CFLAGS+= -fno-pic
.endif
# evbppc needs some special help
.if ${MACHINE} == "evbppc"
. ifndef PPC_INTR_IMPL
PPC_INTR_IMPL=\"powerpc/intr.h\"
. endif
. ifndef PPC_PCI_MACHDEP_IMPL
PPC_PCI_MACHDEP_IMPL=\"powerpc/pci_machdep.h\"
. endif
CPPFLAGS+= -DPPC_INTR_IMPL=${PPC_INTR_IMPL}
CPPFLAGS+= -DPPC_PCI_MACHDEP_IMPL=${DPPC_PCI_MACHDEP_IMPL}
. ifdef PPC_IBM4XX
CPPFLAGS+= -DPPC_IBM4XX
. elifdef PPC_BOOKE
CPPFLAGS+= -DPPC_BOOKE
. else
CPPFLAGS+= -DPPC_OEA
. endif
.endif
_YKMSRCS= ${SRCS:M*.[ly]:C/\..$/.c/} ${YHEADER:D${SRCS:M*.y:.y=.h}}
DPSRCS+= ${_YKMSRCS}
CLEANFILES+= ${_YKMSRCS}
.if exists($S/../sys/modules/xldscripts/kmodule)
KMODSCRIPT= $S/../sys/modules/xldscripts/kmodule
.else
KMODSCRIPT= ${DESTDIR}/usr/libdata/ldscripts/kmodule
.endif
OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g}
PROG?= ${KMOD}.kmod
##### Build rules
realall: ${PROG}
${OBJS} ${LOBJS}: ${DPSRCS}
${PROG}: ${OBJS} ${DPADD}
${_MKTARGET_LINK}
${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \
-o ${.TARGET} ${OBJS}
##### Install rules
.if !target(kmodinstall)
.if !defined(KMODULEDIR)
_OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh
# Ensure these are recorded properly in METALOG on unprived installes:
KMODULEARCHDIR?= ${MACHINE}
_INST_DIRS= ${DESTDIR}/stand/${KMODULEARCHDIR}
_INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}
_INST_DIRS+= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules
KMODULEDIR= ${DESTDIR}/stand/${KMODULEARCHDIR}/${_OSRELEASE}/modules/${KMOD}
.endif
_PROG:= ${KMODULEDIR}/${PROG} # installed path
.if ${MKUPDATE} == "no"
${_PROG}! ${PROG} # install rule
.if !defined(BUILD) && !make(all) && !make(${PROG})
${_PROG}! .MADE # no build at install
.endif
.else
${_PROG}: ${PROG} # install rule
.if !defined(BUILD) && !make(all) && !make(${PROG})
${_PROG}: .MADE # no build at install
.endif
.endif
${_MKTARGET_INSTALL}
dirs=${_INST_DIRS:Q}; \
for d in $$dirs; do \
${INSTALL_DIR} $$d; \
done
${INSTALL_DIR} ${KMODULEDIR}
${INSTALL_FILE} -o ${KMODULEOWN} -g ${KMODULEGRP} -m ${KMODULEMODE} \
${.ALLSRC} ${.TARGET}
kmodinstall:: ${_PROG}
.PHONY: kmodinstall
.PRECIOUS: ${_PROG} # keep if install fails
.undef _PROG
.endif # !target(kmodinstall)
##### Clean rules
CLEANFILES+= a.out [Ee]rrs mklog core *.core ${PROG} ${OBJS} ${LOBJS}
##### Custom rules
lint: ${LOBJS}
.if defined(LOBJS) && !empty(LOBJS)
${LINT} ${LINTFLAGS} ${LDFLAGS:C/-L[ ]*/-L/Wg:M-L*} ${LOBJS} ${LDADD}
.endif
##### Pull in related .mk logic
LINKSOWN?= ${KMODULEOWN}
LINKSGRP?= ${KMODULEGRP}
LINKSMODE?= ${KMODULEMODE}
.include <bsd.man.mk>
.include <bsd.links.mk>
.include <bsd.dep.mk>
.include <bsd.clean.mk>
.-include "$S/arch/${MACHINE_CPU}/include/Makefile.inc"
.-include "$S/arch/${MACHINE}/include/Makefile.inc"