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|
# $NetBSD: bsd.kmodule.mk,v 1.55 2015/07/09 14:50:08 matt 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
MKLDSCRIPT?= no
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...
CFLAGS+= -fno-strict-aliasing -Wno-pointer-sign
# 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+= -fno-common -fno-unwind-tables
.elif ${MACHINE_CPU} == "hppa"
CFLAGS+= -mlong-calls
.elif ${MACHINE_CPU} == "powerpc"
CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mlongcall :}
.elif ${MACHINE_CPU} == "vax"
CFLAGS+= -fno-pic
.elif ${MACHINE_CPU} == "riscv"
CFLAGS+= -fPIC -Wa,-fno-pic
.elif ${MACHINE_ARCH} == "mips64eb" && !defined(BSD_MK_COMPAT_FILE)
CFLAGS+= -mabi=64
LDFLAGS+= -Wl,-m,elf64btsmip
.elif ${MACHINE_ARCH} == "mips64el" && !defined(BSD_MK_COMPAT_FILE)
CFLAGS+= -mabi=64
LDFLAGS+= -Wl,-m,elf64ltsmip
.endif
.if ${MACHINE_CPU} == "sparc64"
# force same memory model as rest of the kernel
CFLAGS+= ${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :}
CFLAGS+= ${${ACTIVE_CC} == "clang":? -mcmodel=small :}
.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)
KMODSCRIPTSRC= $S/../sys/modules/xldscripts/kmodule
.else
KMODSCRIPTSRC= ${DESTDIR}/usr/libdata/ldscripts/kmodule
.endif
.if ${MKLDSCRIPT} == "yes"
KMODSCRIPT= kldscript
MKLDSCRIPTSH=
.else
KMODSCRIPT= ${KMODSCRIPTSRC}
.endif
PROG?= ${KMOD}.kmod
##### Build rules
realall: ${PROG}
.if (defined(USE_COMBINE) && ${USE_COMBINE} != "no" && !commands(${_P}) \
&& !defined(NOCOMBINE.${_P}) && !defined(NOCOMBINE))
.for f in ${SRCS:N*.h:N*.sh:N*.fth:C/\.[yl]$/.c/g}
.if (${CPPFLAGS.$f:D1} == "1" || ${CPUFLAGS.$f:D2} == "2" \
|| ${COPTS.$f:D3} == "3" || ${OBJCOPTS.$f:D4} == "4" \
|| ${CXXFLAGS.$f:D5} == "5") \
|| ("${f:M*.[cyl]}" == "" || commands(${f:R:S/$/.o/}))
XOBJS+= ${f:R:S/$/.o/}
.else
XSRCS+= ${f}
NODPSRCS+= ${f}
.endif
.endfor
.if !empty(XOBJS)
${XOBJS}: ${DPSRCS}
.endif
.if ${MKLDSCRIPT} == "yes"
${KMODSCRIPT}: ${KMODSCRIPTSRC} ${XOBJS} $S/conf/mkldscript.sh
@rm -f ${.TARGET}
@OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \
-t ${KMODSCRIPTSRC} ${XOBJS} > ${.TARGET}
.endif
${PROG}: ${XOBJS} ${XSRCS} ${DPSRCS} ${DPADD} ${KMODSCRIPT}
${CC} ${LDFLAGS} -nostdlib -MD -combine -r -Wl,-T,${KMODSCRIPT},-d \
-Wl,-Map=${.TARGET}.map \
-o ${.TARGET} ${CFLAGS} ${CPPFLAGS} ${XOBJS} \
${XSRCS:@.SRC.@${.ALLSRC:M*.c:M*${.SRC.}}@:O:u} && \
echo '.-include "${KMOD}.d"' > .depend
.else
OBJS+= ${SRCS:N*.h:N*.sh:R:S/$/.o/g}
${OBJS} ${LOBJS}: ${DPSRCS}
.if ${MKLDSCRIPT} == "yes"
${KMODSCRIPT}: ${KMODSCRIPTSRC} ${OBJS} $S/conf/mkldscript.sh
@rm -f ${.TARGET}
@OBJDUMP=${OBJDUMP} ${HOST_SH} $S/conf/mkldscript.sh \
-t ${KMODSCRIPTSRC} ${OBJS} > ${.TARGET}
.endif
.if ${MACHINE_CPU} == "arm"
# The solution to limited branch space involves generating trampolines for
# those relocations while creating the module, as the resulting code will
# be much faster and simplifies the loader.
ARCHDIR= $S/modules/arch/${MACHINE_CPU}
ASM_H= $S/arch/${MACHINE_CPU}/include/asm.h
CLEANFILES+= tmp.o tmp.S ${KMOD}_tmp.o ${KMOD}_tramp.o ${KMOD}_tramp.S
${KMOD}_tmp.o: ${OBJS} ${DPADD}
${_MKTARGET_LINK}
${LD} -r -o tmp.o ${OBJS}
${LD} -r \
`${OBJDUMP} --syms --reloc tmp.o | \
${TOOL_AWK} -f ${ARCHDIR}/kmodwrap.awk` \
-o ${.TARGET} tmp.o
${KMOD}_tramp.S: ${KMOD}_tmp.o ${ARCHDIR}/kmodtramp.awk ${ASM_H}
${_MKTARGET_CREATE}
${OBJDUMP} --syms --reloc ${KMOD}_tmp.o | \
${TOOL_AWK} -f ${ARCHDIR}/kmodtramp.awk \
> tmp.S && \
mv tmp.S ${.TARGET}
${PROG}: ${KMOD}_tmp.o ${KMOD}_tramp.o
${_MKTARGET_LINK}
.if exists(${ARCHDIR}/kmodhide.awk)
${LD} -r -Map=${.TARGET}.map \
-o tmp.o ${KMOD}_tmp.o ${KMOD}_tramp.o
${OBJCOPY} \
`${NM} tmp.o | ${TOOL_AWK} -f ${ARCHDIR}/kmodhide.awk` \
tmp.o ${.TARGET} && \
rm tmp.o
.else
${LD} -r -Map=${.TARGET}.map \
-o ${.TARGET} ${KMOD}_tmp.o ${KMOD}_tramp.o
.endif
.else
${PROG}: ${OBJS} ${DPADD} ${KMODSCRIPT}
${_MKTARGET_LINK}
${CC} ${LDFLAGS} -nostdlib -r -Wl,-T,${KMODSCRIPT},-d \
-Wl,-Map=${.TARGET}.map \
-o ${.TARGET} ${OBJS}
.endif
.endif
##### Install rules
.if !target(kmodinstall)
.if !defined(KMODULEDIR)
_OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh -k
# 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}
CLEANFILES+= ${PROG}.map
.if ${MKLDSCRIPT} == "yes"
CLEANFILES+= kldscript
.endif
##### 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"
|
