0b972ac92e
Make armv7 as a new MACHINE_ARCH. Copy all the places we do armv6 and add armv7 as basically an alias. clang appears to generate code for armv7 by default. armv7 hard float isn't supported by the the in-tree gcc, so it hasn't been updated to have a new default. Support armv7 as a new valid MACHINE_ARCH (and by extension TARGET_ARCH). Add armv7 to the universe build. Differential Revision: https://reviews.freebsd.org/D12010
165 lines
4.2 KiB
Makefile
165 lines
4.2 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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IPSEC_SUPPORT \
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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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TESTS \
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USB_GADGET_EXAMPLES \
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ZFS
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__DEFAULT_NO_OPTIONS = \
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EXTRA_TCP_STACKS \
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NAND \
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OFED \
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RATELIMIT \
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REPRODUCIBLE_BUILD
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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:Marmv[67]*} == ""
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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 SSP
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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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.if ${MACHINE_CPUARCH} == "riscv"
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BROKEN_OPTIONS+= FORMAT_EXTENSIONS
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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" && ${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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# Some modules only compile successfully if option FDT is set, due to #ifdef FDT
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# wrapped around declarations. Module makefiles can optionally compile such
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# things using .if !empty(OPT_FDT)
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.if !defined(OPT_FDT) && defined(KERNBUILDDIR)
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OPT_FDT!= sed -n '/FDT/p' ${KERNBUILDDIR}/opt_platform.h
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.export OPT_FDT
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.endif
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