1# $Id: meta.autodep.mk,v 1.36 2014/08/02 23:10:29 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_this ?= ${.PARSEFILE} 18.if !target(__${_this}__) 19__${_this}__: .NOTMAIN 20 21.-include "local.autodep.mk" 22 23.if defined(SRCS) 24# it would be nice to be able to query .SUFFIXES 25OBJ_EXTENSIONS+= .o .po .lo .So 26 27# explicit dependencies help short-circuit .SUFFIX searches 28SRCS_DEP_FILTER+= N*.[hly] 29.for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}} 30.for e in ${OBJ_EXTENSIONS:O:u} 31.if !target(${s:T:R}$e) 32${s:T:R}$e: $s 33.endif 34.endfor 35.endfor 36.endif 37 38.if make(gendirdeps) 39# you are supposed to know what you are doing! 40UPDATE_DEPENDFILE = yes 41.elif !empty(.TARGETS) && !make(all) 42# do not update the *depend* files 43# unless we are building the entire directory or the default target. 44# NO means don't update .depend - or Makefile.depend* 45# no means update .depend but not Makefile.depend* 46UPDATE_DEPENDFILE = NO 47.elif ${.MAKEFLAGS:M-k} != "" 48# it is a bad idea to update anything 49UPDATE_DEPENDFILE = NO 50.endif 51 52_CURDIR ?= ${.CURDIR} 53_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 54 55.if ${.MAKE.LEVEL} == 0 56.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 57UPDATE_DEPENDFILE = NO 58.endif 59.endif 60.if !exists(${_DEPENDFILE}) 61_bootstrap_dirdeps = yes 62.endif 63_bootstrap_dirdeps ?= no 64UPDATE_DEPENDFILE ?= yes 65 66.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 67.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 68.endif 69 70.if !empty(XMAKE_META_FILE) 71.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 72# we cannot get accurate dependencies from an update build 73UPDATE_DEPENDFILE = NO 74.else 75META_XTRAS += ${XMAKE_META_FILE} 76.endif 77.endif 78 79.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 80# if it isn't supposed to be touched by us the Makefile should have 81# UPDATE_DEPENDFILE = no 82WANT_UPDATE_DEPENDFILE ?= yes 83.endif 84 85.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 86.if ${.MAKE.MODE:Mmeta*} == "" || ${.MAKE.MODE:M*read*} != "" 87UPDATE_DEPENDFILE = no 88.endif 89 90.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 91.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 92.endif 93 94.if ${UPDATE_DEPENDFILE:tl} == "yes" 95# sometimes we want .meta files generated to aid debugging/error detection 96# but do not want to consider them for dependencies 97# for example the result of running configure 98# just make sure this is not empty 99META_FILE_FILTER ?= N.meta 100 101.if !empty(DPADD) 102# if we have any non-libs in DPADD, 103# they probably need to be paid attention to 104.if !empty(DPLIBS) 105FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 106.else 107_nonlibs := ${DPADD:T:Nlib*:N*include} 108.if !empty(_nonlibs) 109FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 110.endif 111.endif 112.endif 113 114.if !make(gendirdeps) 115.END: gendirdeps 116.endif 117 118# if we don't have OBJS, then .depend isn't useful 119.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 120# some makefiles and/or targets contain 121# circular dependencies if you dig too deep 122# (as meta mode is apt to do) 123# so we provide a means of suppressing them. 124# the input to the loop below is target: dependency 125# with just one dependency per line. 126# Also some targets are not really local, or use random names. 127# Use local.autodep.mk to provide local additions! 128SUPPRESS_DEPEND += \ 129 ${SB:S,/,_,g}* \ 130 *:y.tab.c \ 131 *.c:*.c \ 132 *.h:*.h 133 134.NOPATH: .depend 135# we use ${.MAKE.META.CREATED} to trigger an update but 136# we process using ${.MAKE.META.FILES} 137# the double $$ defers initial evaluation 138# if necessary, we fake .po dependencies, just so the result 139# in Makefile.depend* is stable 140# The current objdir may be referred to in various ways 141OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 142_depend = .depend 143# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 144# we actually only care about the .SUFFIXES of files that might be 145# generated by tools like yacc. 146DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 147.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 148 @echo "Updating $@: ${.OODATE:T:[1..8]}" 149 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 150 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 151 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 152 sort -u | \ 153 while read t d; do \ 154 case "$$d:" in $$t) continue;; esac; \ 155 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 156 echo $$t $$d; \ 157 done > $@.${.MAKE.PID} 158 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 159 *.po.*) mv $@.${.MAKE.PID} $@;; \ 160 *) { cat $@.${.MAKE.PID}; \ 161 sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 162 rm -f $@.${.MAKE.PID};; \ 163 esac 164.else 165# make sure this exists 166.depend: 167# do _not_ assume that .depend is in any fit state for us to use 168CAT_DEPEND = /dev/null 169.if ${.MAKE.LEVEL} > 0 170.export CAT_DEPEND 171.endif 172_depend = 173.endif 174 175.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 176.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 177.endif 178 179.if ${UPDATE_DEPENDFILE} == "yes" 180gendirdeps: ${_DEPENDFILE} 181.endif 182 183.if !target(${_DEPENDFILE}) 184.if ${_bootstrap_dirdeps} == "yes" 185# We are boot-strapping a new directory 186# Use DPADD to seed DIRDEPS 187.if !empty(DPADD) 188# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 189# needs to be qualified in DIRDEPS 190# The pseudo machine "host" is used for HOST_TARGET 191DIRDEPS = \ 192 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 193 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 194 195.endif 196.endif 197 198_gendirdeps_mutex = 199.if defined(NEED_GENDIRDEPS_MUTEX) 200# If a src dir gets built with multiple object dirs, 201# we need a mutex. Obviously, this is best avoided. 202# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 203# you either need to mutex, or ensure only one machine builds at a time! 204# lockf is an example of a suitable tool 205LOCKF ?= /usr/bin/lockf 206.if exists(${LOCKF}) 207GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 208.endif 209.if empty(GENDIRDEPS_MUTEXER) 210.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 211.else 212_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 213.endif 214.endif 215 216# If we have META_XTRAS we most likely did not create them 217# but we need to behave as if we did. 218# Avoid adding glob patterns to .MAKE.META.CREATED though. 219.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 220 221.if make(gendirdeps) 222META_FILES = *.meta 223.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 224META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 225.else 226# if we have 1000's of .o.meta, .So.meta etc we need only look at one set 227# it is left as an exercise for the reader to work out what this does 228META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 229 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 230.endif 231 232.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 233.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 234.endif 235 236.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 237.export GENDIRDEPS_FILTER 238.endif 239 240# we might have .../ in MAKESYSPATH 241_makesyspath:= ${_PARSEDIR} 242${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 243 @echo Checking $@: ${.OODATE:T:[1..8]} 244 @(cd . && \ 245 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 246 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 247 MAKESYSPATH=${_makesyspath} \ 248 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \ 249 META_FILES='${META_XTRAS:T:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}') 250 @test -s $@ && touch $@; : 251.endif 252 253.endif 254.endif 255 256.if ${_bootstrap_dirdeps} == "yes" 257.if ${BUILD_AT_LEVEL0:Uno} == "no" 258DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 259.endif 260# make sure this is included at least once 261.include <dirdeps.mk> 262.else 263${_DEPENDFILE}: .PRECIOUS 264.endif 265 266CLEANFILES += *.meta filemon.* *.db 267 268# these make it easy to gather some stats 269now_utc = ${%s:L:gmtime} 270start_utc := ${now_utc} 271 272meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 273 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 274 275#.END: _reldir_finish 276.if target(gendirdeps) 277_reldir_finish: gendirdeps 278.endif 279_reldir_finish: .NOMETA 280 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 281 282#.ERROR: _reldir_failed 283_reldir_failed: .NOMETA 284 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 285 286.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 287.END: _reldir_finish 288.ERROR: _reldir_failed 289.endif 290 291.endif 292