cc41fd23ea
r338642 toggled the REPRODUCIBLE_BUILD knob but missed the corresponding kern.opts.mk change. We want to build the 12.0 release artifacts with reproducible builds mode enabled. Switch it on in HEAD now to enable testing with upcoming ALPHA builds. We can revisit the default setting for HEAD after the branch is created. This change eliminates the build metadata (user, hostname, timestamp, etc.) from the kernel and loader. If the src tree is a git, svn or p4 checkout with changes then the metadata is retained. The WITHOUT_REPRODUCIBLE_BUILD src.conf(5) knob can be used to revert to the previous behaviour. Approved by: re (gjb) Sponsored by: The FreeBSD Foundation
179 lines
4.5 KiB
Makefile
179 lines
4.5 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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EFI \
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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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MODULE_DRM \
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MODULE_DRM2 \
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NETGRAPH \
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PF \
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REPRODUCIBLE_BUILD \
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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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KERNEL_RETPOLINE \
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NAND \
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OFED \
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RATELIMIT
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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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# Things that don't work based on toolchain support.
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.if ${MACHINE} != "i386" && ${MACHINE} != "amd64"
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BROKEN_OPTIONS+= KERNEL_RETPOLINE
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.endif
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# EFI doesn't exist on mips, powerpc, sparc or riscv.
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.if ${MACHINE:Mmips} || ${MACHINE:Mpowerpc} || ${MACHINE:Msparc64} || ${MACHINE:Mriscv}
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BROKEN_OPTIONS+=EFI
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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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