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