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302 lines
7.3 KiB
Makefile
302 lines
7.3 KiB
Makefile
# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
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# $FreeBSD$
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#
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# The include file <bsd.kmod.mk> handles installing Kernel Loadable Device
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# drivers (KLD's).
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#
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#
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# +++ variables +++
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#
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# CLEANFILES Additional files to remove for the clean and cleandir targets.
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#
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# KMOD The name of the kernel module to build.
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#
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# KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel]
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#
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# KMODOWN KLD owner. [${BINOWN}]
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#
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# KMODGRP KLD group. [${BINGRP}]
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#
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# KMODMODE KLD mode. [${BINMODE}]
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#
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# KMODLOAD Command to load a kernel module [/sbin/kldload]
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#
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# KMODUNLOAD Command to unload a kernel module [/sbin/kldunload]
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#
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# PROG The name of the kernel module to build.
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# If not supplied, ${KMOD}.o is used.
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#
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# SRCS List of source files
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#
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# DESTDIR Change the tree where the module gets installed. [not set]
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#
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# MFILES Optionally a list of interfaces used by the module.
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# This file contains a default list of interfaces.
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#
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# EXPORT_SYMS A list of symbols that should be exported from the module,
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# or the name of a file containing a list of symbols, or YES
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# to export all symbols. If not defined, no symbols are
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# exported.
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#
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# +++ targets +++
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#
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# install:
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# install the kernel module; if the Makefile
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# does not itself define the target install, the targets
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# beforeinstall and afterinstall may also be used to cause
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# actions immediately before and after the install target
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# is executed.
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#
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# load:
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# Load KLD.
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#
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# unload:
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# Unload KLD.
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#
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# bsd.obj.mk: clean, cleandir and obj
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# bsd.dep.mk: cleandepend, depend and tags
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#
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AWK?= awk
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KMODLOAD?= /sbin/kldload
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KMODUNLOAD?= /sbin/kldunload
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OBJCOPY?= objcopy
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.if defined(KMODDEPS)
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.error "Do not use KMODDEPS on 5.0+, use MODULE_VERSION/MODULE_DEPEND"
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.endif
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.include <bsd.init.mk>
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.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S
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CFLAGS+= ${COPTS} -D_KERNEL ${CWARNFLAGS}
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CFLAGS+= -DKLD_MODULE
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# Don't use any standard or source-relative include directories.
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# Since -nostdinc will annull any previous -I paths, we repeat all
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# such paths after -nostdinc. It doesn't seem to be possible to
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# add to the front of `make' variable.
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_ICFLAGS:= ${CFLAGS:M-I*}
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CFLAGS+= -nostdinc -I- ${INCLMAGIC} ${_ICFLAGS}
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# Add -I paths for system headers. Individual KLD makefiles don't
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# need any -I paths for this. Similar defaults for .PATH can't be
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# set because there are no standard paths for non-headers.
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CFLAGS+= -I. -I@ -I@/dev
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# Add a -I path to standard headers like <stddef.h>. Use a relative
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# path to src/include if possible. If the @ symlink hasn't been built
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# yet, then we can't tell if the relative path exists. Add both the
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# potential relative path and an absolute path in that case.
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.if exists(@)
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.if exists(@/../include)
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CFLAGS+= -I@/../include
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.else
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CFLAGS+= -I${DESTDIR}/usr/include
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.endif
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.else # !@
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CFLAGS+= -I@/../include -I${DESTDIR}/usr/include
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.endif # @
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# Disallow common variables, and if we end up with commons from
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# somewhere unexpected, allocate storage for them in the module itself.
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CFLAGS+= -fno-common
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LDFLAGS+= -d -warn-common
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CFLAGS+= ${DEBUG_FLAGS}
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.if ${OBJFORMAT} == elf
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CLEANFILES+= setdef0.c setdef1.c setdefs.h
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CLEANFILES+= setdef0.o setdef1.o
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.endif
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OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
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.if !defined(PROG)
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PROG= ${KMOD}.ko
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.endif
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.if !defined(DEBUG)
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FULLPROG= ${PROG}
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.else
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FULLPROG= ${PROG}.debug
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${PROG}: ${FULLPROG}
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${OBJCOPY} --strip-debug ${FULLPROG} ${PROG}
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.endif
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${FULLPROG}: ${KMOD}.kld
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${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld
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EXPORT_SYMS?= NO
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.if ${EXPORT_SYMS} != YES
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CLEANFILES+= ${.OBJDIR}/export_syms
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.endif
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${KMOD}.kld: ${OBJS}
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${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
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.if defined(EXPORT_SYMS)
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.if ${EXPORT_SYMS} != YES
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.if ${EXPORT_SYMS} == NO
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touch ${.OBJDIR}/export_syms
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.elif !exists(${.CURDIR}/${EXPORT_SYMS})
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echo ${EXPORT_SYMS} > ${.OBJDIR}/export_syms
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.else
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grep -v '^#' < ${EXPORT_SYMS} > ${.OBJDIR}/export_syms
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.endif
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awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
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${.OBJDIR}/export_syms | \
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xargs -J% ${OBJCOPY} % ${.TARGET}
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.endif
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.endif
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_ILINKS=@ machine
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all: objwarn ${PROG}
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beforedepend: ${_ILINKS}
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@rm -f .depend
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# Ensure that the links exist without depending on it when it exists which
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# causes all the modules to be rebuilt when the directory pointed to changes.
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.for _link in ${_ILINKS}
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.if !exists(${.OBJDIR}/${_link})
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${OBJS}: ${_link}
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.endif
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.endfor
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# Search for kernel source tree in standard places.
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.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
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.if !defined(SYSDIR) && exists(${_dir}/kern/)
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SYSDIR= ${_dir}
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.endif
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.endfor
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.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
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.error "can't find kernel source tree"
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.endif
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${_ILINKS}:
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@case ${.TARGET} in \
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machine) \
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path=${SYSDIR}/${MACHINE_ARCH}/include ;; \
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@) \
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path=${SYSDIR} ;; \
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esac ; \
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path=`(cd $$path && /bin/pwd)` ; \
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${ECHO} ${.TARGET} "->" $$path ; \
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ln -s $$path ${.TARGET}
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CLEANFILES+= ${PROG} ${FULLPROG} ${KMOD}.kld ${OBJS} ${_ILINKS} symb.tmp tmp.o
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.if !target(install)
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_INSTALLFLAGS:= ${INSTALLFLAGS}
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.for ie in ${INSTALLFLAGS_EDIT}
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_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
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.endfor
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.if defined(DEBUG)
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install.debug:
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cd ${.CURDIR}; ${MAKE} -DINSTALL_DEBUG install
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.endif
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.if !target(realinstall)
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realinstall: _kmodinstall
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.ORDER: beforeinstall _kmodinstall
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.if defined(DEBUG) && defined(INSTALL_DEBUG)
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_kmodinstall:
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${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
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${_INSTALLFLAGS} ${FULLPROG} ${DESTDIR}${KMODDIR}
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.else
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_kmodinstall:
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${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
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${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}
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.include <bsd.links.mk>
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.if !defined(NO_XREF)
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afterinstall: _kldxref
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.ORDER: realinstall _kldxref
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.ORDER: _installlinks _kldxref
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_kldxref:
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@if type kldxref >/dev/null 2>&1; then \
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${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
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kldxref ${DESTDIR}${KMODDIR}; \
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fi
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.endif
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.endif
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.endif !target(realinstall)
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.endif !target(install)
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.if !target(load)
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load: ${PROG}
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${KMODLOAD} -v ${.OBJDIR}/${KMOD}.ko
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.endif
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.if !target(unload)
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unload:
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${KMODUNLOAD} -v ${KMOD}
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.endif
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.for _src in ${SRCS:Mopt_*.h}
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CLEANFILES+= ${_src}
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.if !target(${_src})
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${_src}:
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touch ${.TARGET}
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.endif
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.endfor
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MFILES?= kern/bus_if.m kern/device_if.m dev/iicbus/iicbb_if.m \
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dev/iicbus/iicbus_if.m isa/isa_if.m \
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libkern/iconv_converter_if.m \
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dev/mii/miibus_if.m \
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dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \
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dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \
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dev/usb/usb_if.m dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \
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dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m pci/agp_if.m
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.for _srcsrc in ${MFILES}
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.for _ext in c h
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.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}}
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CLEANFILES+= ${_src}
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.if !target(${_src})
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.if !exists(@)
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${_src}: @
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.endif
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.if exists(@)
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${_src}: @/tools/makeobjops.awk @/${_srcsrc}
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.endif
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${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext}
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.endif
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.endfor # _src
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.endfor # _ext
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.endfor # _srcsrc
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.for _ext in c h
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.if ${SRCS:Mvnode_if.${_ext}} != ""
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CLEANFILES+= vnode_if.${_ext}
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.if !exists(@)
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vnode_if.${_ext}: @
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.endif
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.if exists(@)
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vnode_if.${_ext}: @/tools/vnode_if.awk @/kern/vnode_if.src
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.endif
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${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -${_ext}
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.endif
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.endfor
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regress:
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lint: ${SRCS}
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${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c}
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.include <bsd.dep.mk>
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.if !exists(${DEPENDFILE})
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${OBJS}: ${SRCS:M*.h}
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.endif
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.include <bsd.obj.mk>
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.include <bsd.kern.mk>
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