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