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497e80911e
Reviewed by: emaste, hselasky (partial), brooks (brief) Discussed on: arch@ Sponsored by: EMC / Isilon Storage Division Differential Revision: https://reviews.freebsd.org/D5742
153 lines
3.7 KiB
Makefile
153 lines
3.7 KiB
Makefile
# $FreeBSD$
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# Options set in the build system that affect the kernel somehow.
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#
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# Define MK_* variables (which are either "yes" or "no") for users
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# to set via WITH_*/WITHOUT_* in /etc/src.conf and override in the
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# make(1) environment.
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# These should be tested with `== "no"' or `!= "no"' in makefiles.
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# The NO_* variables should only be set by makefiles for variables
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# that haven't been converted over.
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#
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# Note: bsd.own.mk must be included before the rest of kern.opts.mk to make
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# building on 10.x and earlier work. This should be removed when that's no
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# longer supported since it confounds the defaults (since it uses the host's
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# notion of defaults rather than what's default in current when building
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# within sys/modules).
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.include <bsd.own.mk>
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# These options are used by the kernel build process (kern.mk and kmod.mk)
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# They have to be listed here so we can build modules outside of the
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# src tree.
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__DEFAULT_YES_OPTIONS = \
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AUTOFS \
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BHYVE \
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BLUETOOTH \
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CCD \
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CDDL \
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CRYPT \
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CUSE \
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FORMAT_EXTENSIONS \
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INET \
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INET6 \
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IPFILTER \
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ISCSI \
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KERNEL_SYMBOLS \
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NETGRAPH \
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PF \
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SOURCELESS_HOST \
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SOURCELESS_UCODE \
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USB_GADGET_EXAMPLES \
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ZFS
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__DEFAULT_NO_OPTIONS = \
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EISA \
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NAND \
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OFED
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# Some options are totally broken on some architectures. We disable
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# them. If you need to enable them on an experimental basis, you
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# must change this code.
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# Note: These only apply to the list of modules we build by default
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# and sometimes what is in the opt_*.h files by default.
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# Kernel config files are unaffected, though some targets can be
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# affected by KERNEL_SYMBOLS, FORMAT_EXTENSIONS, CTF and SSP.
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# Things that don't work based on the CPU
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.if ${MACHINE_CPUARCH} == "arm"
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. if ${MACHINE_ARCH:Marmv6*} == ""
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BROKEN_OPTIONS+= CDDL ZFS
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. endif
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.endif
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.if ${MACHINE_CPUARCH} == "mips"
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BROKEN_OPTIONS+= CDDL ZFS
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.endif
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.if ${MACHINE_CPUARCH} == "powerpc" && ${MACHINE_ARCH} == "powerpc"
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BROKEN_OPTIONS+= ZFS
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.endif
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# Things that don't work because the kernel doesn't have the support
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# for them.
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.if ${MACHINE} != "i386"
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BROKEN_OPTIONS+= EISA
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.endif
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.if ${MACHINE} != "i386" && ${MACHINE} != "amd64"
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BROKEN_OPTIONS+= OFED
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.endif
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# expanded inline from bsd.mkopt.mk to avoid share/mk dependency
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# Those that default to yes
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.for var in ${__DEFAULT_YES_OPTIONS}
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.if !defined(MK_${var})
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.if defined(WITHOUT_${var}) # WITHOUT always wins
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MK_${var}:= no
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.else
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MK_${var}:= yes
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.endif
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.else
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.if ${MK_${var}} != "yes" && ${MK_${var}} != "no"
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.error "Illegal value for MK_${var}: ${MK_${var}}"
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.endif
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.endif # !defined(MK_${var})
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.endfor
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.undef __DEFAULT_YES_OPTIONS
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# Those that default to no
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.for var in ${__DEFAULT_NO_OPTIONS}
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.if !defined(MK_${var})
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.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins
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MK_${var}:= yes
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.else
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MK_${var}:= no
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.endif
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.else
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.if ${MK_${var}} != "yes" && ${MK_${var}} != "no"
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.error "Illegal value for MK_${var}: ${MK_${var}}"
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.endif
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.endif # !defined(MK_${var})
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.endfor
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.undef __DEFAULT_NO_OPTIONS
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#
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# MK_* options which are always no, usually because they are
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# unsupported/badly broken on this architecture.
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#
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.for var in ${BROKEN_OPTIONS}
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MK_${var}:= no
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.endfor
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.undef BROKEN_OPTIONS
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#end of bsd.mkopt.mk expanded inline.
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#
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# MK_*_SUPPORT options which default to "yes" unless their corresponding
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# MK_* variable is set to "no".
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#
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.for var in \
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INET \
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INET6
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.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no"
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MK_${var}_SUPPORT:= no
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.else
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.if defined(KERNBUILDDIR) # See if there's an opt_foo.h
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.if !defined(OPT_${var})
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OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo
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.export OPT_${var}
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.endif
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.if ${OPT_${var}} == "" # nothing -> no
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MK_${var}_SUPPORT:= no
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.else
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MK_${var}_SUPPORT:= yes
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.endif
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.else # otherwise, yes
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MK_${var}_SUPPORT:= yes
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.endif
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.endif
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.endfor
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