1# $FreeBSD$ 2 3# Options set in the build system that affect the kernel somehow. 4 5# 6# Define MK_* variables (which are either "yes" or "no") for users 7# to set via WITH_*/WITHOUT_* in /etc/src.conf and override in the 8# make(1) environment. 9# These should be tested with `== "no"' or `!= "no"' in makefiles. 10# The NO_* variables should only be set by makefiles for variables 11# that haven't been converted over. 12# 13 14# Note: bsd.own.mk must be included before the rest of kern.opts.mk to make 15# building on 10.x and earlier work. This should be removed when that's no 16# longer supported since it confounds the defaults (since it uses the host's 17# notion of defaults rather than what's default in current when building 18# within sys/modules). 19.include <bsd.own.mk> 20 21# These options are used by the kernel build process (kern.mk and kmod.mk) 22# They have to be listed here so we can build modules outside of the 23# src tree. 24 25KLDXREF_CMD?= kldxref 26 27__DEFAULT_YES_OPTIONS = \ 28 AUTOFS \ 29 BHYVE \ 30 BLUETOOTH \ 31 CCD \ 32 CDDL \ 33 CRYPT \ 34 CUSE \ 35 EFI \ 36 FORMAT_EXTENSIONS \ 37 INET \ 38 INET6 \ 39 IPFILTER \ 40 IPSEC_SUPPORT \ 41 ISCSI \ 42 KERNEL_SYMBOLS \ 43 NETGRAPH \ 44 PF \ 45 REPRODUCIBLE_BUILD \ 46 SOURCELESS_HOST \ 47 SOURCELESS_UCODE \ 48 TESTS \ 49 USB_GADGET_EXAMPLES \ 50 ZFS 51 52__DEFAULT_NO_OPTIONS = \ 53 EXTRA_TCP_STACKS \ 54 KERNEL_RETPOLINE \ 55 OFED \ 56 RATELIMIT 57 58# Some options are totally broken on some architectures. We disable 59# them. If you need to enable them on an experimental basis, you 60# must change this code. 61# Note: These only apply to the list of modules we build by default 62# and sometimes what is in the opt_*.h files by default. 63# Kernel config files are unaffected, though some targets can be 64# affected by KERNEL_SYMBOLS, FORMAT_EXTENSIONS, CTF and SSP. 65 66# Things that don't work based on the CPU 67.if ${MACHINE_CPUARCH} == "arm" 68. if ${MACHINE_ARCH:Marmv[67]*} == "" 69BROKEN_OPTIONS+= CDDL ZFS 70. endif 71.endif 72 73.if ${MACHINE_CPUARCH} == "mips" 74BROKEN_OPTIONS+= CDDL ZFS SSP 75.endif 76 77.if ${MACHINE_CPUARCH} == "powerpc" && ${MACHINE_ARCH} == "powerpc" 78BROKEN_OPTIONS+= ZFS 79.endif 80 81.if ${MACHINE_CPUARCH} == "riscv" 82BROKEN_OPTIONS+= FORMAT_EXTENSIONS 83.endif 84 85# Things that don't work because the kernel doesn't have the support 86# for them. 87.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 88BROKEN_OPTIONS+= OFED 89.endif 90 91# Things that don't work based on toolchain support. 92.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 93BROKEN_OPTIONS+= KERNEL_RETPOLINE 94.endif 95 96# EFI doesn't exist on mips, powerpc, sparc or riscv. 97.if ${MACHINE:Mmips} || ${MACHINE:Mpowerpc} || ${MACHINE:Msparc64} || ${MACHINE:Mriscv} 98BROKEN_OPTIONS+=EFI 99.endif 100 101# expanded inline from bsd.mkopt.mk to avoid share/mk dependency 102 103# Those that default to yes 104.for var in ${__DEFAULT_YES_OPTIONS} 105.if !defined(MK_${var}) 106.if defined(WITHOUT_${var}) # WITHOUT always wins 107MK_${var}:= no 108.else 109MK_${var}:= yes 110.endif 111.else 112.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 113.error "Illegal value for MK_${var}: ${MK_${var}}" 114.endif 115.endif # !defined(MK_${var}) 116.endfor 117.undef __DEFAULT_YES_OPTIONS 118 119# Those that default to no 120.for var in ${__DEFAULT_NO_OPTIONS} 121.if !defined(MK_${var}) 122.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins 123MK_${var}:= yes 124.else 125MK_${var}:= no 126.endif 127.else 128.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 129.error "Illegal value for MK_${var}: ${MK_${var}}" 130.endif 131.endif # !defined(MK_${var}) 132.endfor 133.undef __DEFAULT_NO_OPTIONS 134 135# 136# MK_* options which are always no, usually because they are 137# unsupported/badly broken on this architecture. 138# 139.for var in ${BROKEN_OPTIONS} 140MK_${var}:= no 141.endfor 142.undef BROKEN_OPTIONS 143#end of bsd.mkopt.mk expanded inline. 144 145# 146# MK_*_SUPPORT options which default to "yes" unless their corresponding 147# MK_* variable is set to "no". 148# 149.for var in \ 150 INET \ 151 INET6 152.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no" 153MK_${var}_SUPPORT:= no 154.else 155.if defined(KERNBUILDDIR) # See if there's an opt_foo.h 156.if !defined(OPT_${var}) 157OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo 158.export OPT_${var} 159.endif 160.if ${OPT_${var}} == "" # nothing -> no 161MK_${var}_SUPPORT:= no 162.else 163MK_${var}_SUPPORT:= yes 164.endif 165.else # otherwise, yes 166MK_${var}_SUPPORT:= yes 167.endif 168.endif 169.endfor 170 171# Some modules only compile successfully if option FDT is set, due to #ifdef FDT 172# wrapped around declarations. Module makefiles can optionally compile such 173# things using .if !empty(OPT_FDT) 174.if !defined(OPT_FDT) && defined(KERNBUILDDIR) 175OPT_FDT!= sed -n '/FDT/p' ${KERNBUILDDIR}/opt_platform.h 176.export OPT_FDT 177.endif 178