1# $Id: meta.sys.mk,v 1.22 2015/06/16 06:31:05 sjg Exp $ 2 3# 4# @(#) Copyright (c) 2010, Simon J. Gerraty 5# 6# This file is provided in the hope that it will 7# be of use. There is absolutely NO WARRANTY. 8# Permission to copy, redistribute or otherwise 9# use this file is hereby granted provided that 10# the above copyright notice and this notice are 11# left intact. 12# 13# Please send copies of changes and bug-fixes to: 14# sjg@crufty.net 15# 16 17# include this if you want to enable meta mode 18# for maximum benefit, requires filemon(4) driver. 19 20.if ${MAKE_VERSION:U0} > 20100901 21.if !target(.ERROR) 22 23.-include "local.meta.sys.mk" 24 25# absoulte path to what we are reading. 26_PARSEDIR = ${.PARSEDIR:tA} 27 28META_MODE += meta verbose 29.MAKE.MODE ?= ${META_MODE} 30 31.if ${.MAKE.LEVEL} == 0 32_make_mode := ${.MAKE.MODE} ${META_MODE} 33.if ${_make_mode:M*read*} != "" || ${_make_mode:M*nofilemon*} != "" 34# tell everyone we are not updating Makefile.depend* 35UPDATE_DEPENDFILE = NO 36.export UPDATE_DEPENDFILE 37.endif 38.if ${UPDATE_DEPENDFILE:Uyes:tl} == "no" && !exists(/dev/filemon) 39# we should not get upset 40META_MODE += nofilemon 41.export META_MODE 42.endif 43.endif 44 45.if !defined(NO_SILENT) 46.if ${MAKE_VERSION} > 20110818 47# only be silent when we have a .meta file 48META_MODE += silent=yes 49.else 50.SILENT: 51.endif 52.endif 53 54# make defaults .MAKE.DEPENDFILE to .depend 55# that won't work for us. 56.if ${.MAKE.DEPENDFILE} == ".depend" 57.undef .MAKE.DEPENDFILE 58.endif 59 60# if you don't cross build for multiple MACHINEs concurrently, then 61# .MAKE.DEPENDFILE = Makefile.depend 62# probably makes sense - you can set that in local.sys.mk 63.MAKE.DEPENDFILE ?= Makefile.depend.${MACHINE} 64 65# we use the pseudo machine "host" for the build host. 66# this should be taken care of before we get here 67.if ${OBJTOP:Ua} == ${HOST_OBJTOP:Ub} 68MACHINE = host 69.endif 70 71.if ${.MAKE.LEVEL} == 0 72# it can be handy to know which MACHINE kicked off the build 73# for example, if using Makefild.depend for multiple machines, 74# allowing only MACHINE0 to update can keep things simple. 75MACHINE0 := ${MACHINE} 76.export MACHINE0 77 78.if defined(PYTHON) && exists(${PYTHON}) 79# we prefer the python version of this - it is much faster 80META2DEPS ?= ${.PARSEDIR}/meta2deps.py 81.else 82META2DEPS ?= ${.PARSEDIR}/meta2deps.sh 83.endif 84META2DEPS := ${META2DEPS} 85.export META2DEPS 86.endif 87 88MAKE_PRINT_VAR_ON_ERROR += \ 89 .ERROR_TARGET \ 90 .ERROR_META_FILE \ 91 .MAKE.LEVEL \ 92 MAKEFILE \ 93 .MAKE.MODE 94 95.if !defined(SB) && defined(SRCTOP) 96SB = ${SRCTOP:H} 97.endif 98ERROR_LOGDIR ?= ${SB}/error 99meta_error_log = ${ERROR_LOGDIR}/meta-${.MAKE.PID}.log 100 101# we are not interested in make telling us a failure happened elsewhere 102.ERROR: _metaError 103_metaError: .NOMETA .NOTMAIN 104 -@[ "${.ERROR_META_FILE}" ] && { \ 105 grep -q 'failure has been detected in another branch' ${.ERROR_META_FILE} && exit 0; \ 106 mkdir -p ${meta_error_log:H}; \ 107 cp ${.ERROR_META_FILE} ${meta_error_log}; \ 108 echo "ERROR: log ${meta_error_log}" >&2; }; : 109 110.endif 111 112# Are we, after all, in meta mode? 113.if ${.MAKE.MODE:Mmeta*} != "" 114MKDEP_MK = meta.autodep.mk 115 116.if ${UPDATE_DEPENDFILE:Uyes:tl} != "no" 117.if ${.MAKEFLAGS:Uno:M-k} != "" 118# make this more obvious 119.warning Setting UPDATE_DEPENDFILE=NO due to -k 120UPDATE_DEPENDFILE= NO 121.export UPDATE_DEPENDFILE 122.elif !exists(/dev/filemon) 123.error ${.newline}ERROR: The filemon module (/dev/filemon) is not loaded. 124.endif 125.endif 126 127.if ${.MAKE.LEVEL} == 0 128# make sure dirdeps target exists and do it first 129all: dirdeps .WAIT 130dirdeps: 131.NOPATH: dirdeps 132 133.if defined(ALL_MACHINES) 134# the first .MAIN: is what counts 135# by default dirdeps is all we want at level0 136.MAIN: dirdeps 137# tell dirdeps.mk what we want 138BUILD_AT_LEVEL0 = no 139.endif 140.if ${.TARGETS:Nall} == "" 141# it works best if we do everything via sub-makes 142BUILD_AT_LEVEL0 ?= no 143.endif 144 145.endif 146.endif 147.endif 148