1# $FreeBSD$ 2# $Id: meta.autodep.mk,v 1.36 2014/08/02 23:10:29 sjg Exp $ 3 4# 5# @(#) Copyright (c) 2010, Simon J. Gerraty 6# 7# This file is provided in the hope that it will 8# be of use. There is absolutely NO WARRANTY. 9# Permission to copy, redistribute or otherwise 10# use this file is hereby granted provided that 11# the above copyright notice and this notice are 12# left intact. 13# 14# Please send copies of changes and bug-fixes to: 15# sjg@crufty.net 16# 17 18_this ?= ${.PARSEFILE} 19.if !target(__${_this}__) 20__${_this}__: .NOTMAIN 21 22.-include "local.autodep.mk" 23 24.if defined(SRCS) 25# it would be nice to be able to query .SUFFIXES 26OBJ_EXTENSIONS+= .o .po .lo .So 27 28# explicit dependencies help short-circuit .SUFFIX searches 29SRCS_DEP_FILTER+= N*.[hly] 30.for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}} 31.for e in ${OBJ_EXTENSIONS:O:u} 32.if !target(${s:T:R}$e) 33${s:T:R}$e: $s 34.endif 35.endfor 36.endfor 37.endif 38 39.if make(gendirdeps) 40# you are supposed to know what you are doing! 41UPDATE_DEPENDFILE = yes 42.elif !empty(.TARGETS) && !make(all) 43# do not update the *depend* files 44# unless we are building the entire directory or the default target. 45# NO means don't update .depend - or Makefile.depend* 46# no means update .depend but not Makefile.depend* 47UPDATE_DEPENDFILE = NO 48.elif ${.MAKEFLAGS:M-k} != "" 49# it is a bad idea to update anything 50UPDATE_DEPENDFILE = NO 51.endif 52 53_CURDIR ?= ${.CURDIR} 54_OBJDIR ?= ${.OBJDIR} 55_OBJTOP ?= ${OBJTOP} 56_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 57_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 58 59.if ${.MAKE.LEVEL} == 0 60.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 61UPDATE_DEPENDFILE = NO 62.endif 63.endif 64.if !exists(${_DEPENDFILE}) 65_bootstrap_dirdeps = yes 66.endif 67_bootstrap_dirdeps ?= no 68UPDATE_DEPENDFILE ?= yes 69 70.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 71.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 72.endif 73 74.if !empty(XMAKE_META_FILE) 75.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 76# we cannot get accurate dependencies from an update build 77UPDATE_DEPENDFILE = NO 78.else 79META_XTRAS += ${XMAKE_META_FILE} 80.endif 81.endif 82 83.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 84# if it isn't supposed to be touched by us the Makefile should have 85# UPDATE_DEPENDFILE = no 86WANT_UPDATE_DEPENDFILE ?= yes 87.endif 88 89.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 90.if ${.MAKE.MODE:Mmeta*} == "" || ${.MAKE.MODE:M*read*} != "" 91UPDATE_DEPENDFILE = no 92.endif 93 94.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 95.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 96.endif 97 98.if ${UPDATE_DEPENDFILE:tl} == "yes" 99# sometimes we want .meta files generated to aid debugging/error detection 100# but do not want to consider them for dependencies 101# for example the result of running configure 102# just make sure this is not empty 103META_FILE_FILTER ?= N.meta 104# never consider these 105META_FILE_FILTER += Ndirdeps.cache* 106 107.if !empty(DPADD) 108# if we have any non-libs in DPADD, 109# they probably need to be paid attention to 110.if !empty(DPLIBS) 111FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 112.else 113_nonlibs := ${DPADD:T:Nlib*:N*include} 114.if !empty(_nonlibs) 115FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 116.endif 117.endif 118.endif 119 120.if !make(gendirdeps) 121.END: gendirdeps 122.endif 123 124# if we don't have OBJS, then .depend isn't useful 125.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 126# some makefiles and/or targets contain 127# circular dependencies if you dig too deep 128# (as meta mode is apt to do) 129# so we provide a means of suppressing them. 130# the input to the loop below is target: dependency 131# with just one dependency per line. 132# Also some targets are not really local, or use random names. 133# Use local.autodep.mk to provide local additions! 134SUPPRESS_DEPEND += \ 135 ${SB:S,/,_,g}* \ 136 *:y.tab.c \ 137 *.c:*.c \ 138 *.h:*.h 139 140.NOPATH: .depend 141# we use ${.MAKE.META.CREATED} to trigger an update but 142# we process using ${.MAKE.META.FILES} 143# the double $$ defers initial evaluation 144# if necessary, we fake .po dependencies, just so the result 145# in Makefile.depend* is stable 146# The current objdir may be referred to in various ways 147OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 148_depend = .depend 149# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 150# we actually only care about the .SUFFIXES of files that might be 151# generated by tools like yacc. 152DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 153.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 154 @echo "Updating $@: ${.OODATE:T:[1..8]}" 155 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 156 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 157 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 158 sort -u | \ 159 while read t d; do \ 160 case "$$d:" in $$t) continue;; esac; \ 161 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 162 echo $$t $$d; \ 163 done > $@.${.MAKE.PID} 164 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 165 *.po.*) mv $@.${.MAKE.PID} $@;; \ 166 *) { cat $@.${.MAKE.PID}; \ 167 sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 168 rm -f $@.${.MAKE.PID};; \ 169 esac 170.else 171# make sure this exists 172.depend: 173# do _not_ assume that .depend is in any fit state for us to use 174CAT_DEPEND = /dev/null 175.if ${.MAKE.LEVEL} > 0 176.export CAT_DEPEND 177.endif 178_depend = 179.endif 180 181.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 182.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 183.endif 184 185.if ${UPDATE_DEPENDFILE} == "yes" 186gendirdeps: ${_DEPENDFILE} 187.endif 188 189.if !target(${_DEPENDFILE}) 190.if ${_bootstrap_dirdeps} == "yes" 191# We are boot-strapping a new directory 192# Use DPADD to seed DIRDEPS 193.if !empty(DPADD) 194# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 195# needs to be qualified in DIRDEPS 196# The pseudo machine "host" is used for HOST_TARGET 197DIRDEPS += \ 198 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 199 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 200 201.endif 202.endif 203 204_gendirdeps_mutex = 205.if defined(NEED_GENDIRDEPS_MUTEX) 206# If a src dir gets built with multiple object dirs, 207# we need a mutex. Obviously, this is best avoided. 208# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 209# you either need to mutex, or ensure only one machine builds at a time! 210# lockf is an example of a suitable tool 211LOCKF ?= /usr/bin/lockf 212.if exists(${LOCKF}) 213GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 214.endif 215.if empty(GENDIRDEPS_MUTEXER) 216.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 217.else 218_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 219.endif 220.endif 221 222# If we have META_XTRAS we most likely did not create them 223# but we need to behave as if we did. 224# Avoid adding glob patterns to .MAKE.META.CREATED though. 225.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 226 227.if make(gendirdeps) 228META_FILES = *.meta 229.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 230META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 231.else 232# if we have 1000's of .o.meta, .So.meta etc we need only look at one set 233# it is left as an exercise for the reader to work out what this does 234META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 235 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 236.endif 237 238.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 239.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 240.endif 241 242.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 243.export GENDIRDEPS_FILTER 244.endif 245 246# we might have .../ in MAKESYSPATH 247_makesyspath:= ${_PARSEDIR} 248${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 249 @echo Checking $@: ${.OODATE:T:[1..8]} 250 @(cd . && \ 251 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 252 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 253 MAKESYSPATH=${_makesyspath} \ 254 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \ 255 META_FILES='${META_XTRAS:T:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}') 256 @test -s $@ && touch $@; : 257.endif 258 259.endif 260.endif 261 262.if ${_bootstrap_dirdeps} == "yes" 263.if ${BUILD_AT_LEVEL0:Uno} == "no" 264DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 265.endif 266# make sure this is included at least once 267.include <dirdeps.mk> 268.else 269${_DEPENDFILE}: .PRECIOUS 270.endif 271 272CLEANFILES += *.meta filemon.* *.db 273 274# these make it easy to gather some stats 275now_utc = ${%s:L:gmtime} 276start_utc := ${now_utc} 277 278meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 279 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 280 281#.END: _reldir_finish 282.if target(gendirdeps) 283_reldir_finish: gendirdeps 284.endif 285_reldir_finish: .NOMETA 286 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 287 288#.ERROR: _reldir_failed 289_reldir_failed: .NOMETA 290 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 291 292.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 293.END: _reldir_finish 294.ERROR: _reldir_failed 295.endif 296 297.endif 298