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Add support for compiling kernel modules outside of the tree. If you
do not have the kernel you wish to compile against in either /usr/src/sys or /sys, then you will need to set SYSDIR to point to the sys directory of the source tree that contians the source. Also, minor tweaks to the load/unload targets from Bruce. I've had this through several make worlds, as well as using it on a daily basis for the past couple of weeks to build modules needed for testing at Timing Solutions. Reviewed and revised by: bde Work sponsored by: Timing Solutions
This commit is contained in:
Warner Losh
parent
49ce7a6052
commit
9a8631b340
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=59097
@ -11,8 +11,6 @@
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#
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# DISTRIBUTION Name of distribution. [bin]
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#
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# KERN Main Kernel source directory. [${.CURDIR}/../../sys/kern]
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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)). [/modules]
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@ -174,26 +172,23 @@ all: objwarn ${PROG} all-man _SUBDIR
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beforedepend ${OBJS}: ${_ILINKS}
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# The search for the link targets works best if we are in a normal src
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# tree, and not too deeply below src/sys/modules. If we are near "/", then
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# we may find /sys - this is harmless. Other abnormal "sys" directories
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# found in the search are likely to cause problems. If nothing is found,
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# then the links default to /usr/include and /usr/include/machine.
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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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@set +x; for up in ../.. ../../.. ; do \
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case ${.TARGET} in \
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machine) \
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testpath=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
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path=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
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defaultpath=/usr/include/machine ;; \
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@) \
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testpath=${.CURDIR}/$$up/sys ; \
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path=${.CURDIR}/$$up ; \
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defaultpath=/usr/include ;; \
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esac ; \
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if [ -d $$testpath ] ; then break ; fi ; \
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path=$$defaultpath ; \
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done ; \
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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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@ -257,19 +252,13 @@ distribute: _SUBDIR
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.endif
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.if !target(load)
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load: ${PROG} install
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${KMODLOAD} ${KMOD}
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load: ${PROG}
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${KMODLOAD} -v ./${KMOD}
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.endif
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.if !target(unload)
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unload:
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${KMODUNLOAD} ${KMOD}
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.endif
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.if exists(${.CURDIR}/../../kern)
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KERN= ${.CURDIR}/../../kern
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.else
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KERN= ${.CURDIR}/../../sys/kern
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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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@ -11,8 +11,6 @@
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#
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# DISTRIBUTION Name of distribution. [bin]
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#
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# KERN Main Kernel source directory. [${.CURDIR}/../../sys/kern]
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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)). [/modules]
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@ -174,26 +172,23 @@ all: objwarn ${PROG} all-man _SUBDIR
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beforedepend ${OBJS}: ${_ILINKS}
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# The search for the link targets works best if we are in a normal src
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# tree, and not too deeply below src/sys/modules. If we are near "/", then
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# we may find /sys - this is harmless. Other abnormal "sys" directories
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# found in the search are likely to cause problems. If nothing is found,
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# then the links default to /usr/include and /usr/include/machine.
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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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@set +x; for up in ../.. ../../.. ; do \
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case ${.TARGET} in \
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machine) \
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testpath=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
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path=${.CURDIR}/$$up/${MACHINE_ARCH}/include ; \
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defaultpath=/usr/include/machine ;; \
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@) \
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testpath=${.CURDIR}/$$up/sys ; \
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path=${.CURDIR}/$$up ; \
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defaultpath=/usr/include ;; \
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esac ; \
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if [ -d $$testpath ] ; then break ; fi ; \
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path=$$defaultpath ; \
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done ; \
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@case ${.TARGET} in \
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machine) \
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path=${SYSDIR}/${MACHINE_ARCH}/include ;; \
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@) \
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path=${SYSDIR} ;; \
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esac ; \
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path=`(cd $$path && /bin/pwd)` ; \
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${ECHO} ${.TARGET} "->" $$path ; \
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ln -s $$path ${.TARGET}
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@ -257,19 +252,13 @@ distribute: _SUBDIR
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.endif
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.if !target(load)
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load: ${PROG} install
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${KMODLOAD} ${KMOD}
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load: ${PROG}
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${KMODLOAD} -v ./${KMOD}
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.endif
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.if !target(unload)
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unload:
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${KMODUNLOAD} ${KMOD}
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.endif
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.if exists(${.CURDIR}/../../kern)
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KERN= ${.CURDIR}/../../kern
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.else
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KERN= ${.CURDIR}/../../sys/kern
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${KMODUNLOAD} -v ${KMOD}
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.endif
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.for _src in ${SRCS:Mopt_*.h}
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