1# $Id: meta.autodep.mk,v 1.37 2015/06/16 06:29:17 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# never consider these 101META_FILE_FILTER += Ndirdeps.cache* 102 103.if !empty(DPADD) 104# if we have any non-libs in DPADD, 105# they probably need to be paid attention to 106.if !empty(DPLIBS) 107FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 108.else 109_nonlibs := ${DPADD:T:Nlib*:N*include} 110.if !empty(_nonlibs) 111FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 112.endif 113.endif 114.endif 115 116.if !make(gendirdeps) 117.END: gendirdeps 118.endif 119 120# if we don't have OBJS, then .depend isn't useful 121.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 122# some makefiles and/or targets contain 123# circular dependencies if you dig too deep 124# (as meta mode is apt to do) 125# so we provide a means of suppressing them. 126# the input to the loop below is target: dependency 127# with just one dependency per line. 128# Also some targets are not really local, or use random names. 129# Use local.autodep.mk to provide local additions! 130SUPPRESS_DEPEND += \ 131 ${SB:S,/,_,g}* \ 132 *:y.tab.c \ 133 *.c:*.c \ 134 *.h:*.h 135 136.NOPATH: .depend 137# we use ${.MAKE.META.CREATED} to trigger an update but 138# we process using ${.MAKE.META.FILES} 139# the double $$ defers initial evaluation 140# if necessary, we fake .po dependencies, just so the result 141# in Makefile.depend* is stable 142# The current objdir may be referred to in various ways 143OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 144_depend = .depend 145# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 146# we actually only care about the .SUFFIXES of files that might be 147# generated by tools like yacc. 148DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 149.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 150 @echo "Updating $@: ${.OODATE:T:[1..8]}" 151 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 152 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 153 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 154 sort -u | \ 155 while read t d; do \ 156 case "$$d:" in $$t) continue;; esac; \ 157 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 158 echo $$t $$d; \ 159 done > $@.${.MAKE.PID} 160 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 161 *.po.*) mv $@.${.MAKE.PID} $@;; \ 162 *) { cat $@.${.MAKE.PID}; \ 163 sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 164 rm -f $@.${.MAKE.PID};; \ 165 esac 166.else 167# make sure this exists 168.depend: 169# do _not_ assume that .depend is in any fit state for us to use 170CAT_DEPEND = /dev/null 171.if ${.MAKE.LEVEL} > 0 172.export CAT_DEPEND 173.endif 174_depend = 175.endif 176 177.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 178.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 179.endif 180 181.if ${UPDATE_DEPENDFILE} == "yes" 182gendirdeps: ${_DEPENDFILE} 183.endif 184 185.if !target(${_DEPENDFILE}) 186.if ${_bootstrap_dirdeps} == "yes" 187# We are boot-strapping a new directory 188# Use DPADD to seed DIRDEPS 189.if !empty(DPADD) 190# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 191# needs to be qualified in DIRDEPS 192# The pseudo machine "host" is used for HOST_TARGET 193DIRDEPS = \ 194 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 195 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 196 197.endif 198.endif 199 200_gendirdeps_mutex = 201.if defined(NEED_GENDIRDEPS_MUTEX) 202# If a src dir gets built with multiple object dirs, 203# we need a mutex. Obviously, this is best avoided. 204# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 205# you either need to mutex, or ensure only one machine builds at a time! 206# lockf is an example of a suitable tool 207LOCKF ?= /usr/bin/lockf 208.if exists(${LOCKF}) 209GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 210.endif 211.if empty(GENDIRDEPS_MUTEXER) 212.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 213.else 214_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 215.endif 216.endif 217 218# If we have META_XTRAS we most likely did not create them 219# but we need to behave as if we did. 220# Avoid adding glob patterns to .MAKE.META.CREATED though. 221.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 222 223.if make(gendirdeps) 224META_FILES = *.meta 225.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 226META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 227.else 228# if we have 1000's of .o.meta, .So.meta etc we need only look at one set 229# it is left as an exercise for the reader to work out what this does 230META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 231 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 232.endif 233 234.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 235.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 236.endif 237 238.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 239.export GENDIRDEPS_FILTER 240.endif 241 242# we might have .../ in MAKESYSPATH 243_makesyspath:= ${_PARSEDIR} 244${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 245 @echo Checking $@: ${.OODATE:T:[1..8]} 246 @(cd . && \ 247 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 248 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 249 MAKESYSPATH=${_makesyspath} \ 250 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \ 251 META_FILES='${META_XTRAS:T:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}') 252 @test -s $@ && touch $@; : 253.endif 254 255.endif 256.endif 257 258.if ${_bootstrap_dirdeps} == "yes" 259.if ${BUILD_AT_LEVEL0:Uno} == "no" 260DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 261.endif 262# make sure this is included at least once 263.include <dirdeps.mk> 264.else 265${_DEPENDFILE}: .PRECIOUS 266.endif 267 268CLEANFILES += *.meta filemon.* *.db 269 270# these make it easy to gather some stats 271now_utc = ${%s:L:gmtime} 272start_utc := ${now_utc} 273 274meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 275 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 276 277#.END: _reldir_finish 278.if target(gendirdeps) 279_reldir_finish: gendirdeps 280.endif 281_reldir_finish: .NOMETA 282 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 283 284#.ERROR: _reldir_failed 285_reldir_failed: .NOMETA 286 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 287 288.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 289.END: _reldir_finish 290.ERROR: _reldir_failed 291.endif 292 293.endif 294