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