1246149Ssjg# $Id: meta.sys.mk,v 1.16 2012/07/03 05:26:00 sjg Exp $ 2246149Ssjg 3246149Ssjg# 4246149Ssjg# @(#) Copyright (c) 2010, Simon J. Gerraty 5246149Ssjg# 6246149Ssjg# This file is provided in the hope that it will 7246149Ssjg# be of use. There is absolutely NO WARRANTY. 8246149Ssjg# Permission to copy, redistribute or otherwise 9246149Ssjg# use this file is hereby granted provided that 10246149Ssjg# the above copyright notice and this notice are 11246149Ssjg# left intact. 12246149Ssjg# 13246149Ssjg# Please send copies of changes and bug-fixes to: 14246149Ssjg# sjg@crufty.net 15246149Ssjg# 16246149Ssjg 17246149Ssjg# include this if you want to enable meta mode 18246149Ssjg# for maximum benefit, requires filemon(4) driver. 19246149Ssjg 20246149Ssjg.if ${MAKE_VERSION:U0} > 20100901 21246149Ssjg.if !target(.ERROR) 22246149Ssjg 23246149Ssjg 24246149SsjgMETA_MODE += meta verbose 25246149Ssjg.MAKE.MODE ?= ${META_MODE} 26246149Ssjg 27246149Ssjg.if ${.MAKE.LEVEL} == 0 28246149Ssjg_make_mode := ${.MAKE.MODE} ${META_MODE} 29246149Ssjg.if ${_make_mode:M*read*} != "" || ${_make_mode:M*nofilemon*} != "" 30246149Ssjg# tell everyone we are not updating Makefile.depend* 31246149SsjgUPDATE_DEPENDFILE = NO 32246149Ssjg.export UPDATE_DEPENDFILE 33246149Ssjg.endif 34246149Ssjg.if ${UPDATE_DEPENDFILE:Uyes:tl} == "no" && !exists(/dev/filemon) 35246149Ssjg# we should not get upset 36246149SsjgMETA_MODE += nofilemon 37246149Ssjg.export META_MODE 38246149Ssjg.endif 39246149Ssjg.endif 40246149Ssjg 41246149Ssjg.if !defined(NO_SILENT) 42246149Ssjg.if ${MAKE_VERSION} > 20110818 43246149Ssjg# only be silent when we have a .meta file 44246149SsjgMETA_MODE += silent=yes 45246149Ssjg.else 46246149Ssjg.SILENT: 47246149Ssjg.endif 48246149Ssjg.endif 49246149Ssjg 50246149Ssjg# make defaults .MAKE.DEPENDFILE to .depend 51246149Ssjg# that won't work for us. 52246149Ssjg.if ${.MAKE.DEPENDFILE} == ".depend" 53246149Ssjg.undef .MAKE.DEPENDFILE 54246149Ssjg.endif 55246149Ssjg 56246149Ssjg# if you don't cross build for multiple MACHINEs concurrently, then 57246149Ssjg# .MAKE.DEPENDFILE = Makefile.depend 58246149Ssjg# probably makes sense - you can set that in local.sys.mk 59246149Ssjg.MAKE.DEPENDFILE ?= Makefile.depend.${MACHINE} 60246149Ssjg 61246149Ssjg# we use the pseudo machine "host" for the build host. 62246149Ssjg# this should be taken care of before we get here 63246149Ssjg.if ${OBJTOP:Ua} == ${HOST_OBJTOP:Ub} 64246149SsjgMACHINE = host 65246149Ssjg.endif 66246149Ssjg 67246149Ssjg.if ${.MAKE.LEVEL} == 0 68246149Ssjg# it can be handy to know which MACHINE kicked off the build 69246149Ssjg# for example, if using Makefild.depend for multiple machines, 70246149Ssjg# allowing only MACHINE0 to update can keep things simple. 71246149SsjgMACHINE0 := ${MACHINE} 72246149Ssjg 73246149Ssjg.if defined(PYTHON) && exists(${PYTHON}) 74246149Ssjg# we prefer the python version of this - it is much faster 75246149SsjgMETA2DEPS ?= ${.PARSEDIR}/meta2deps.py 76246149Ssjg.else 77246149SsjgMETA2DEPS ?= ${.PARSEDIR}/meta2deps.sh 78246149Ssjg.endif 79246149SsjgMETA2DEPS := ${META2DEPS} 80246149Ssjg.export META2DEPS 81246149Ssjg.endif 82246149Ssjg 83246149SsjgMAKE_PRINT_VAR_ON_ERROR += \ 84246149Ssjg .ERROR_TARGET \ 85246149Ssjg .ERROR_META_FILE \ 86246149Ssjg .MAKE.LEVEL \ 87246149Ssjg MAKEFILE \ 88246149Ssjg .MAKE.MODE 89246149Ssjg 90246149Ssjg.if !defined(SB) && defined(SRCTOP) 91246149SsjgSB = ${SRCTOP:H} 92246149Ssjg.endif 93246149SsjgERROR_LOGDIR ?= ${SB}/error 94246149Ssjgmeta_error_log = ${ERROR_LOGDIR}/meta-${.MAKE.PID}.log 95246149Ssjg 96246149Ssjg# we are not interested in make telling us a failure happened elsewhere 97246149Ssjg.ERROR: _metaError 98246149Ssjg_metaError: .NOMETA .NOTMAIN 99246149Ssjg -@[ "${.ERROR_META_FILE}" ] && { \ 100246149Ssjg grep -q 'failure has been detected in another branch' ${.ERROR_META_FILE} && exit 0; \ 101246149Ssjg mkdir -p ${meta_error_log:H}; \ 102246149Ssjg cp ${.ERROR_META_FILE} ${meta_error_log}; \ 103246149Ssjg echo "ERROR: log ${meta_error_log}" >&2; }; : 104246149Ssjg 105246149Ssjg.endif 106246149Ssjg 107246149Ssjg# Are we, after all, in meta mode? 108246149Ssjg.if ${.MAKE.MODE:Mmeta*} != "" 109246149SsjgMKDEP = meta.autodep 110246149Ssjg 111246149Ssjg.if ${.MAKE.LEVEL} == 0 112246149Ssjg# make sure dirdeps target exists and do it first 113246149Ssjgall: dirdeps .WAIT 114246149Ssjgdirdeps: 115246149Ssjg.NOPATH: dirdeps 116246149Ssjg 117246149Ssjg.if defined(ALL_MACHINES) 118246149Ssjg# the first .MAIN: is what counts 119246149Ssjg# by default dirdeps is all we want at level0 120246149Ssjg.MAIN: dirdeps 121246149Ssjg# tell dirdeps.mk what we want 122246149SsjgBUILD_AT_LEVEL0 = no 123246149Ssjg.endif 124246149Ssjg 125246149Ssjg.if ${.MAKE.DEPENDFILE:E} == ${MACHINE} 126246149Ssjg# it works best if we do everything via sub-makes 127246149SsjgBUILD_AT_LEVEL0 ?= no 128246149Ssjg.endif 129246149SsjgBUILD_AT_LEVEL0 ?= yes 130246149Ssjg.endif 131246149Ssjg 132246149Ssjg# if we think we are updating dependencies, 133246149Ssjg# then filemon had better be present 134246149Ssjg.if ${UPDATE_DEPENDFILE:Uyes:tl} != "no" && !exists(/dev/filemon) 135246149Ssjg.error ${.newline}ERROR: The filemon module (/dev/filemon) is not loaded. 136246149Ssjg.endif 137246149Ssjg 138246149Ssjg.endif 139246149Ssjg.endif 140