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'make load' if an object dir was, like it is used in /sys/modules. I.e. cd /sys/modules/umass make obj make make load works again without having to install the module. If no objdir was used the module in the current directory is used.
349 lines
8.6 KiB
Makefile
349 lines
8.6 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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# DISTRIBUTION Name of distribution. [bin]
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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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# LINKS The list of KLD links; should be full pathnames, the
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# linked-to file coming first, followed by the linked
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# file. The files are hard-linked. For example, to link
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# /modules/master and /modules/meister, use:
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#
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# LINKS= /modules/master /modules/meister
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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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# SUBDIR A list of subdirectories that should be built as well.
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# Each of the targets will execute the same target in the
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# subdirectories.
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#
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# SYMLINKS Same as LINKS, except it creates symlinks and the
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# linked-to pathname may be relative.
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#
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# DESTDIR, DISTDIR are set by other Makefiles (e.g. bsd.own.mk)
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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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# distribute:
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# This is a variant of install, which will
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# put the stuff into the right "distribution".
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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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.if !target(beforeinstall)
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beforeinstall:
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.endif
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.if !target(afterinstall)
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afterinstall:
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.endif
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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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realinstall:
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.if defined(DEBUG) && defined(INSTALL_DEBUG)
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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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${INSTALL} ${COPY} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
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${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
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.if defined(LINKS) && !empty(LINKS)
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@set ${LINKS}; \
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while test $$# -ge 2; do \
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l=${DESTDIR}$$1; \
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shift; \
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t=${DESTDIR}$$1; \
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shift; \
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${ECHO} $$t -\> $$l; \
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ln -f $$l $$t; \
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done; true
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.endif
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.if defined(SYMLINKS) && !empty(SYMLINKS)
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@set ${SYMLINKS}; \
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while test $$# -ge 2; do \
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l=$$1; \
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shift; \
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t=${DESTDIR}$$1; \
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shift; \
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${ECHO} $$t -\> $$l; \
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ln -fs $$l $$t; \
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done; true
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.endif
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.if !defined(NO_XREF)
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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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install: afterinstall
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afterinstall: realinstall
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realinstall: beforeinstall
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.endif
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DISTRIBUTION?= bin
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.if !target(distribute)
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distribute:
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.for dist in ${DISTRIBUTION}
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cd ${.CURDIR} ; $(MAKE) install DESTDIR=${DISTDIR}/${dist} SHARED=copies
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.endfor
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.endif
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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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