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 KERNEL_RETPOLINE \ 51 NAND \ 52 OFED \ 53 RATELIMIT \ 54 REPRODUCIBLE_BUILD 55 56# Some options are totally broken on some architectures. We disable 57# them. If you need to enable them on an experimental basis, you 58# must change this code. 59# Note: These only apply to the list of modules we build by default 60# and sometimes what is in the opt_*.h files by default. 61# Kernel config files are unaffected, though some targets can be 62# affected by KERNEL_SYMBOLS, FORMAT_EXTENSIONS, CTF and SSP. 63 64# Things that don't work based on the CPU 65.if ${MACHINE_CPUARCH} == "arm" 66. if ${MACHINE_ARCH:Marmv[67]*} == "" 67BROKEN_OPTIONS+= CDDL ZFS 68. endif 69.endif 70 71.if ${MACHINE_CPUARCH} == "mips" 72BROKEN_OPTIONS+= CDDL ZFS SSP 73.endif 74 75.if ${MACHINE_CPUARCH} == "powerpc" && ${MACHINE_ARCH} == "powerpc" 76BROKEN_OPTIONS+= ZFS 77.endif 78 79.if ${MACHINE_CPUARCH} == "riscv" 80BROKEN_OPTIONS+= FORMAT_EXTENSIONS 81.endif 82 83# Things that don't work because the kernel doesn't have the support 84# for them. 85.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 86BROKEN_OPTIONS+= OFED 87.endif 88 89# Things that don't work based on toolchain support. 90.if ${MACHINE} != "amd64" 91BROKEN_OPTIONS+= KERNEL_RETPOLINE 92.endif 93 94# expanded inline from bsd.mkopt.mk to avoid share/mk dependency 95 96# Those that default to yes 97.for var in ${__DEFAULT_YES_OPTIONS} 98.if !defined(MK_${var}) 99.if defined(WITHOUT_${var}) # WITHOUT always wins 100MK_${var}:= no 101.else 102MK_${var}:= yes 103.endif 104.else 105.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 106.error "Illegal value for MK_${var}: ${MK_${var}}" 107.endif 108.endif # !defined(MK_${var}) 109.endfor 110.undef __DEFAULT_YES_OPTIONS 111 112# Those that default to no 113.for var in ${__DEFAULT_NO_OPTIONS} 114.if !defined(MK_${var}) 115.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins 116MK_${var}:= yes 117.else 118MK_${var}:= no 119.endif 120.else 121.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 122.error "Illegal value for MK_${var}: ${MK_${var}}" 123.endif 124.endif # !defined(MK_${var}) 125.endfor 126.undef __DEFAULT_NO_OPTIONS 127 128# 129# MK_* options which are always no, usually because they are 130# unsupported/badly broken on this architecture. 131# 132.for var in ${BROKEN_OPTIONS} 133MK_${var}:= no 134.endfor 135.undef BROKEN_OPTIONS 136#end of bsd.mkopt.mk expanded inline. 137 138# 139# MK_*_SUPPORT options which default to "yes" unless their corresponding 140# MK_* variable is set to "no". 141# 142.for var in \ 143 INET \ 144 INET6 145.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no" 146MK_${var}_SUPPORT:= no 147.else 148.if defined(KERNBUILDDIR) # See if there's an opt_foo.h 149.if !defined(OPT_${var}) 150OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo 151.export OPT_${var} 152.endif 153.if ${OPT_${var}} == "" # nothing -> no 154MK_${var}_SUPPORT:= no 155.else 156MK_${var}_SUPPORT:= yes 157.endif 158.else # otherwise, yes 159MK_${var}_SUPPORT:= yes 160.endif 161.endif 162.endfor 163 164# Some modules only compile successfully if option FDT is set, due to #ifdef FDT 165# wrapped around declarations. Module makefiles can optionally compile such 166# things using .if !empty(OPT_FDT) 167.if !defined(OPT_FDT) && defined(KERNBUILDDIR) 168OPT_FDT!= sed -n '/FDT/p' ${KERNBUILDDIR}/opt_platform.h 169.export OPT_FDT 170.endif 171