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