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 REPRODUCIBLE_BUILD 52 53# Some options are totally broken on some architectures. We disable 54# them. If you need to enable them on an experimental basis, you 55# must change this code. 56# Note: These only apply to the list of modules we build by default 57# and sometimes what is in the opt_*.h files by default. 58# Kernel config files are unaffected, though some targets can be 59# affected by KERNEL_SYMBOLS, FORMAT_EXTENSIONS, CTF and SSP. 60 61# Things that don't work based on the CPU 62.if ${MACHINE_CPUARCH} == "arm" 63. if ${MACHINE_ARCH:Marmv6*} == "" 64BROKEN_OPTIONS+= CDDL ZFS 65. endif 66.endif 67 68.if ${MACHINE_CPUARCH} == "mips" 69BROKEN_OPTIONS+= CDDL ZFS SSP 70.endif 71 72.if ${MACHINE_CPUARCH} == "powerpc" && ${MACHINE_ARCH} == "powerpc" 73BROKEN_OPTIONS+= ZFS 74.endif 75 76# Things that don't work because the kernel doesn't have the support 77# for them. 78.if ${MACHINE} != "i386" 79BROKEN_OPTIONS+= EISA 80.endif 81 82.if ${MACHINE} != "i386" && ${MACHINE} != "amd64" 83BROKEN_OPTIONS+= OFED 84.endif 85 86# expanded inline from bsd.mkopt.mk to avoid share/mk dependency 87 88# Those that default to yes 89.for var in ${__DEFAULT_YES_OPTIONS} 90.if !defined(MK_${var}) 91.if defined(WITHOUT_${var}) # WITHOUT always wins 92MK_${var}:= no 93.else 94MK_${var}:= yes 95.endif 96.else 97.if ${MK_${var}} != "yes" && ${MK_${var}} != "no" 98.error "Illegal value for MK_${var}: ${MK_${var}}" 99.endif 100.endif # !defined(MK_${var}) 101.endfor 102.undef __DEFAULT_YES_OPTIONS 103 104# Those that default to no 105.for var in ${__DEFAULT_NO_OPTIONS} 106.if !defined(MK_${var}) 107.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins 108MK_${var}:= yes 109.else 110MK_${var}:= no 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_NO_OPTIONS 119 120# 121# MK_* options which are always no, usually because they are 122# unsupported/badly broken on this architecture. 123# 124.for var in ${BROKEN_OPTIONS} 125MK_${var}:= no 126.endfor 127.undef BROKEN_OPTIONS 128#end of bsd.mkopt.mk expanded inline. 129 130# 131# MK_*_SUPPORT options which default to "yes" unless their corresponding 132# MK_* variable is set to "no". 133# 134.for var in \ 135 INET \ 136 INET6 137.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no" 138MK_${var}_SUPPORT:= no 139.else 140.if defined(KERNBUILDDIR) # See if there's an opt_foo.h 141.if !defined(OPT_${var}) 142OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo 143.export OPT_${var} 144.endif 145.if ${OPT_${var}} == "" # nothing -> no 146MK_${var}_SUPPORT:= no 147.else 148MK_${var}_SUPPORT:= yes 149.endif 150.else # otherwise, yes 151MK_${var}_SUPPORT:= yes 152.endif 153.endif 154.endfor 155 156# Some modules only compile successfully if option FDT is set, due to #ifdef FDT 157# wrapped around declarations. Module makefiles can optionally compile such 158# things using .if !empty(OPT_FDT) 159.if !defined(OPT_FDT) && defined(KERNBUILDDIR) 160OPT_FDT!= sed -n '/FDT/p' ${KERNBUILDDIR}/opt_platform.h 161.export OPT_FDT 162.endif 163