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 25__DEFAULT_YES_OPTIONS = \ 26 AUTOFS \ 27 BHYVE \ 28 BLUETOOTH \ 29 CCD \ 30 CDDL \ 31 CRYPT \ 32 CUSE \ 33 FORMAT_EXTENSIONS \ 34 INET \ 35 INET6 \ 36 IPFILTER \ 37 IPSEC_SUPPORT \ 38 ISCSI \ 39 KERNEL_SYMBOLS \ 40 NETGRAPH \ 41 PF \ 42 SOURCELESS_HOST \ 43 SOURCELESS_UCODE \ 44 TESTS \ 45 USB_GADGET_EXAMPLES \ 46 ZFS 47 48__DEFAULT_NO_OPTIONS = \ 49 EXTRA_TCP_STACKS \ 50 NAND \ 51 OFED \ 52 RATELIMIT \ 53 REPRODUCIBLE_BUILD 54 55# Some options are totally broken on some architectures. We disable 56# them. If you need to enable them on an experimental basis, you 57# must change this code. 58# Note: These only apply to the list of modules we build by default 59# and sometimes what is in the opt_*.h files by default. 60# Kernel config files are unaffected, though some targets can be 61# affected by KERNEL_SYMBOLS, FORMAT_EXTENSIONS, CTF and SSP. 62 63# Things that don't work based on the CPU 64.if ${MACHINE_CPUARCH} == "arm" 65. if ${MACHINE_ARCH:Marmv6*} == "" 66BROKEN_OPTIONS+= CDDL ZFS 67. endif 68.endif 69 70.if ${MACHINE_CPUARCH} == "mips" 71BROKEN_OPTIONS+= CDDL ZFS SSP 72.endif 73 74.if ${MACHINE_CPUARCH} == "powerpc" && ${MACHINE_ARCH} == "powerpc" 75BROKEN_OPTIONS+= ZFS 76.endif 77 78.if ${MACHINE_CPUARCH} == "riscv" 79BROKEN_OPTIONS+= FORMAT_EXTENSIONS 80.endif 81 82# Things that don't work because the kernel doesn't have the support 83# for them. 84.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 85BROKEN_OPTIONS+= OFED 86.endif 87 88# expanded inline from bsd.mkopt.mk to avoid share/mk dependency 89 90# Those that default to yes 91.for var in ${__DEFAULT_YES_OPTIONS} 92.if !defined(MK_${var}) 93.if defined(WITHOUT_${var}) # WITHOUT always wins 94MK_${var}:= no 95.else 96MK_${var}:= yes 97.endif 98.else 99.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 100.error "Illegal value for MK_${var}: ${MK_${var}}" 101.endif 102.endif # !defined(MK_${var}) 103.endfor 104.undef __DEFAULT_YES_OPTIONS 105 106# Those that default to no 107.for var in ${__DEFAULT_NO_OPTIONS} 108.if !defined(MK_${var}) 109.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins 110MK_${var}:= yes 111.else 112MK_${var}:= no 113.endif 114.else 115.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 116.error "Illegal value for MK_${var}: ${MK_${var}}" 117.endif 118.endif # !defined(MK_${var}) 119.endfor 120.undef __DEFAULT_NO_OPTIONS 121 122# 123# MK_* options which are always no, usually because they are 124# unsupported/badly broken on this architecture. 125# 126.for var in ${BROKEN_OPTIONS} 127MK_${var}:= no 128.endfor 129.undef BROKEN_OPTIONS 130#end of bsd.mkopt.mk expanded inline. 131 132# 133# MK_*_SUPPORT options which default to "yes" unless their corresponding 134# MK_* variable is set to "no". 135# 136.for var in \ 137 INET \ 138 INET6 139.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no" 140MK_${var}_SUPPORT:= no 141.else 142.if defined(KERNBUILDDIR) # See if there's an opt_foo.h 143.if !defined(OPT_${var}) 144OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo 145.export OPT_${var} 146.endif 147.if ${OPT_${var}} == "" # nothing -> no 148MK_${var}_SUPPORT:= no 149.else 150MK_${var}_SUPPORT:= yes 151.endif 152.else # otherwise, yes 153MK_${var}_SUPPORT:= yes 154.endif 155.endif 156.endfor 157 158# Some modules only compile successfully if option FDT is set, due to #ifdef FDT 159# wrapped around declarations. Module makefiles can optionally compile such 160# things using .if !empty(OPT_FDT) 161.if !defined(OPT_FDT) && defined(KERNBUILDDIR) 162OPT_FDT!= sed -n '/FDT/p' ${KERNBUILDDIR}/opt_platform.h 163.export OPT_FDT 164.endif 165