1# $Id: meta.autodep.mk,v 1.45 2016/06/03 17:22:32 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_OBJDIR ?= ${.OBJDIR} 54_OBJTOP ?= ${OBJTOP} 55_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 56_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 57 58.if ${.MAKE.LEVEL} > 0 || ${BUILD_AT_LEVEL0:Uyes:tl} == "yes" 59# do not allow auto update if we ever built this dir without filemon 60NO_FILEMON_COOKIE = .nofilemon 61CLEANFILES += ${NO_FILEMON_COOKIE} 62.if ${.MAKE.MODE:Uno:Mnofilemon} != "" 63UPDATE_DEPENDFILE = NO 64all: ${NO_FILEMON_COOKIE} 65${NO_FILEMON_COOKIE}: .NOMETA 66 @echo UPDATE_DEPENDFILE=NO > ${.TARGET} 67.elif exists(${NO_FILEMON_COOKIE}) 68UPDATE_DEPENDFILE = NO 69.warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO 70.endif 71.endif 72 73.if ${.MAKE.LEVEL} == 0 74.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 75UPDATE_DEPENDFILE = NO 76.endif 77.endif 78.if !exists(${_DEPENDFILE}) 79_bootstrap_dirdeps = yes 80.endif 81_bootstrap_dirdeps ?= no 82UPDATE_DEPENDFILE ?= yes 83 84.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 85.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 86.endif 87 88.if !empty(XMAKE_META_FILE) 89.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 90# we cannot get accurate dependencies from an update build 91UPDATE_DEPENDFILE = NO 92.else 93META_XTRAS += ${XMAKE_META_FILE} 94.endif 95.endif 96 97.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 98# if it isn't supposed to be touched by us the Makefile should have 99# UPDATE_DEPENDFILE = no 100WANT_UPDATE_DEPENDFILE ?= yes 101.endif 102 103.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 104.if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != "" 105UPDATE_DEPENDFILE = no 106.endif 107 108.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 109.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 110.endif 111 112.if ${UPDATE_DEPENDFILE:tl} == "yes" 113# sometimes we want .meta files generated to aid debugging/error detection 114# but do not want to consider them for dependencies 115# for example the result of running configure 116# just make sure this is not empty 117META_FILE_FILTER ?= N.meta 118# never consider these 119META_FILE_FILTER += Ndirdeps.cache* 120 121.if !empty(DPADD) 122# if we have any non-libs in DPADD, 123# they probably need to be paid attention to 124.if !empty(DPLIBS) 125FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 126.else 127_nonlibs := ${DPADD:T:Nlib*:N*include} 128.if !empty(_nonlibs) 129FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 130.endif 131.endif 132.endif 133 134.if !make(gendirdeps) 135.END: gendirdeps 136.endif 137 138# if we don't have OBJS, then .depend isn't useful 139.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 140# some makefiles and/or targets contain 141# circular dependencies if you dig too deep 142# (as meta mode is apt to do) 143# so we provide a means of suppressing them. 144# the input to the loop below is target: dependency 145# with just one dependency per line. 146# Also some targets are not really local, or use random names. 147# Use local.autodep.mk to provide local additions! 148SUPPRESS_DEPEND += \ 149 ${SB:S,/,_,g}* \ 150 *:y.tab.c \ 151 *.c:*.c \ 152 *.h:*.h 153 154.NOPATH: .depend 155# we use ${.MAKE.META.CREATED} to trigger an update but 156# we process using ${.MAKE.META.FILES} 157# the double $$ defers initial evaluation 158# if necessary, we fake .po dependencies, just so the result 159# in Makefile.depend* is stable 160# The current objdir may be referred to in various ways 161OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 162_depend = .depend 163# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 164# we actually only care about the .SUFFIXES of files that might be 165# generated by tools like yacc. 166DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 167.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 168 @echo "Updating $@: ${.OODATE:T:[1..8]}" 169 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 170 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 171 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 172 sort -u | \ 173 while read t d; do \ 174 case "$$d:" in $$t) continue;; esac; \ 175 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 176 echo $$t $$d; \ 177 done > $@.${.MAKE.PID} 178 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 179 *.po.*) mv $@.${.MAKE.PID} $@;; \ 180 *) { cat $@.${.MAKE.PID}; \ 181 sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 182 rm -f $@.${.MAKE.PID};; \ 183 esac 184.else 185# make sure this exists 186.depend: 187# do _not_ assume that .depend is in any fit state for us to use 188CAT_DEPEND = /dev/null 189.if ${.MAKE.LEVEL} > 0 190.export CAT_DEPEND 191.endif 192_depend = 193.endif 194 195.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 196.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 197.endif 198 199.if ${UPDATE_DEPENDFILE} == "yes" 200gendirdeps: ${_DEPENDFILE} 201.endif 202 203.if !target(${_DEPENDFILE}) 204.if ${_bootstrap_dirdeps} == "yes" 205# We are boot-strapping a new directory 206# Use DPADD to seed DIRDEPS 207.if !empty(DPADD) 208# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 209# needs to be qualified in DIRDEPS 210# The pseudo machine "host" is used for HOST_TARGET 211DIRDEPS += \ 212 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 213 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 214 215.endif 216.endif 217 218_gendirdeps_mutex = 219.if defined(NEED_GENDIRDEPS_MUTEX) 220# If a src dir gets built with multiple object dirs, 221# we need a mutex. Obviously, this is best avoided. 222# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 223# you either need to mutex, or ensure only one machine builds at a time! 224# lockf is an example of a suitable tool 225LOCKF ?= /usr/bin/lockf 226.if exists(${LOCKF}) 227GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 228.endif 229.if empty(GENDIRDEPS_MUTEXER) 230.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 231.else 232_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 233.endif 234.endif 235 236# If we have META_XTRAS we most likely did not create them 237# but we need to behave as if we did. 238# Avoid adding glob patterns to .MAKE.META.CREATED though. 239.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 240 241.if make(gendirdeps) 242META_FILES = *.meta 243.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 244META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 245.else 246# if we have 1000's of .o.meta, .So.meta etc we need only look at one set 247# it is left as an exercise for the reader to work out what this does 248META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 249 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 250.endif 251 252.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 253.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 254.endif 255 256.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 257.export GENDIRDEPS_FILTER 258.endif 259 260# we might have .../ in MAKESYSPATH 261_makesyspath:= ${_PARSEDIR} 262${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 263 @echo Checking $@: ${.OODATE:T:[1..8]} 264 @(cd . && \ 265 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 266 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 267 MAKESYSPATH=${_makesyspath} \ 268 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \ 269 META_FILES='${META_XTRAS:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}') 270 @test -s $@ && touch $@; : 271.endif 272 273.endif 274.endif 275 276.if ${_bootstrap_dirdeps} == "yes" 277.if ${BUILD_AT_LEVEL0:Uno} == "no" 278DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 279.endif 280# make sure this is included at least once 281.include <dirdeps.mk> 282.else 283${_DEPENDFILE}: .PRECIOUS 284.endif 285 286CLEANFILES += *.meta filemon.* *.db 287 288# these make it easy to gather some stats 289now_utc = ${%s:L:gmtime} 290start_utc := ${now_utc} 291 292meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 293 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 294 295#.END: _reldir_finish 296.if target(gendirdeps) 297_reldir_finish: gendirdeps 298.endif 299_reldir_finish: .NOMETA 300 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 301 302#.ERROR: _reldir_failed 303_reldir_failed: .NOMETA 304 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 305 306.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 307.END: _reldir_finish 308.ERROR: _reldir_failed 309.endif 310 311.endif 312