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 EFI \ 34 FORMAT_EXTENSIONS \ 35 INET \ 36 INET6 \ 37 IPFILTER \ 38 IPSEC_SUPPORT \ 39 ISCSI \ 40 KERNEL_SYMBOLS \ 41 NETGRAPH \ 42 PF \ 43 REPRODUCIBLE_BUILD \ 44 SOURCELESS_HOST \ 45 SOURCELESS_UCODE \ 46 TESTS \ 47 USB_GADGET_EXAMPLES \ 48 ZFS 49 50__DEFAULT_NO_OPTIONS = \ 51 EXTRA_TCP_STACKS \ 52 KERNEL_RETPOLINE \ 53 MODULE_DRM \ 54 MODULE_DRM2 \ 55 NAND \ 56 OFED \ 57 RATELIMIT 58 59# Some options are totally broken on some architectures. We disable 60# them. If you need to enable them on an experimental basis, you 61# must change this code. 62# Note: These only apply to the list of modules we build by default 63# and sometimes what is in the opt_*.h files by default. 64# Kernel config files are unaffected, though some targets can be 65# affected by KERNEL_SYMBOLS, FORMAT_EXTENSIONS, CTF and SSP. 66 67# Things that don't work based on the CPU 68.if ${MACHINE_CPUARCH} == "arm" 69. if ${MACHINE_ARCH:Marmv[67]*} == "" 70BROKEN_OPTIONS+= CDDL ZFS 71. endif 72.endif 73 74.if ${MACHINE_CPUARCH} == "mips" 75BROKEN_OPTIONS+= CDDL ZFS SSP 76.endif 77 78.if ${MACHINE_CPUARCH} == "powerpc" && ${MACHINE_ARCH} == "powerpc" 79BROKEN_OPTIONS+= ZFS 80.endif 81 82.if ${MACHINE_CPUARCH} == "riscv" 83BROKEN_OPTIONS+= FORMAT_EXTENSIONS 84.endif 85 86# Things that don't work because the kernel doesn't have the support 87# for them. 88.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 89BROKEN_OPTIONS+= OFED 90.endif 91 92# Things that don't work based on toolchain support. 93.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 94BROKEN_OPTIONS+= KERNEL_RETPOLINE 95.endif 96 97# EFI doesn't exist on mips, powerpc, sparc or riscv. 98.if ${MACHINE:Mmips} || ${MACHINE:Mpowerpc} || ${MACHINE:Msparc64} || ${MACHINE:Mriscv} 99BROKEN_OPTIONS+=EFI 100.endif 101 102# expanded inline from bsd.mkopt.mk to avoid share/mk dependency 103 104# Those that default to yes 105.for var in ${__DEFAULT_YES_OPTIONS} 106.if !defined(MK_${var}) 107.if defined(WITHOUT_${var}) # WITHOUT always wins 108MK_${var}:= no 109.else 110MK_${var}:= yes 111.endif 112.else 113.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 114.error "Illegal value for MK_${var}: ${MK_${var}}" 115.endif 116.endif # !defined(MK_${var}) 117.endfor 118.undef __DEFAULT_YES_OPTIONS 119 120# Those that default to no 121.for var in ${__DEFAULT_NO_OPTIONS} 122.if !defined(MK_${var}) 123.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins 124MK_${var}:= yes 125.else 126MK_${var}:= no 127.endif 128.else 129.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 130.error "Illegal value for MK_${var}: ${MK_${var}}" 131.endif 132.endif # !defined(MK_${var}) 133.endfor 134.undef __DEFAULT_NO_OPTIONS 135 136# 137# MK_* options which are always no, usually because they are 138# unsupported/badly broken on this architecture. 139# 140.for var in ${BROKEN_OPTIONS} 141MK_${var}:= no 142.endfor 143.undef BROKEN_OPTIONS 144#end of bsd.mkopt.mk expanded inline. 145 146# 147# MK_*_SUPPORT options which default to "yes" unless their corresponding 148# MK_* variable is set to "no". 149# 150.for var in \ 151 INET \ 152 INET6 153.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no" 154MK_${var}_SUPPORT:= no 155.else 156.if defined(KERNBUILDDIR) # See if there's an opt_foo.h 157.if !defined(OPT_${var}) 158OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo 159.export OPT_${var} 160.endif 161.if ${OPT_${var}} == "" # nothing -> no 162MK_${var}_SUPPORT:= no 163.else 164MK_${var}_SUPPORT:= yes 165.endif 166.else # otherwise, yes 167MK_${var}_SUPPORT:= yes 168.endif 169.endif 170.endfor 171 172# Some modules only compile successfully if option FDT is set, due to #ifdef FDT 173# wrapped around declarations. Module makefiles can optionally compile such 174# things using .if !empty(OPT_FDT) 175.if !defined(OPT_FDT) && defined(KERNBUILDDIR) 176OPT_FDT!= sed -n '/FDT/p' ${KERNBUILDDIR}/opt_platform.h 177.export OPT_FDT 178.endif 179