1# $FreeBSD$ 2# $Id: meta.autodep.mk,v 1.40 2016/02/22 22:44:58 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 || ${BUILD_AT_LEVEL0:Uyes:tl} == "yes" 60# do not allow auto update if we ever built this dir without filemon 61NO_FILEMON_COOKIE = .nofilemon 62CLEANFILES += ${NO_FILEMON_COOKIE} 63.if ${.MAKE.MODE:Uno:Mnofilemon} != "" 64UPDATE_DEPENDFILE = NO 65all: ${NO_FILEMON_COOKIE} 66${NO_FILEMON_COOKIE}: .NOMETA 67 @echo UPDATE_DEPENDFILE=NO > ${.TARGET} 68.elif exists(${NO_FILEMON_COOKIE}) 69UPDATE_DEPENDFILE = NO 70.warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO 71.endif 72.endif 73 74.if ${.MAKE.LEVEL} == 0 75.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 76UPDATE_DEPENDFILE = NO 77.endif 78.endif 79.if !exists(${_DEPENDFILE}) 80_bootstrap_dirdeps = yes 81.endif 82_bootstrap_dirdeps ?= no 83UPDATE_DEPENDFILE ?= yes 84 85.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 86.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 87.endif 88 89.if !empty(XMAKE_META_FILE) 90.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 91# we cannot get accurate dependencies from an update build 92UPDATE_DEPENDFILE = NO 93.else 94META_XTRAS += ${XMAKE_META_FILE} 95.endif 96.endif 97 98.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 99# if it isn't supposed to be touched by us the Makefile should have 100# UPDATE_DEPENDFILE = no 101WANT_UPDATE_DEPENDFILE ?= yes 102.endif 103 104.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 105.if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != "" 106UPDATE_DEPENDFILE = no 107.endif 108 109.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 110.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 111.endif 112 113.if ${UPDATE_DEPENDFILE:tl} == "yes" 114# sometimes we want .meta files generated to aid debugging/error detection 115# but do not want to consider them for dependencies 116# for example the result of running configure 117# just make sure this is not empty 118META_FILE_FILTER ?= N.meta 119# never consider these 120META_FILE_FILTER += Ndirdeps.cache* 121 122.if !empty(DPADD) 123# if we have any non-libs in DPADD, 124# they probably need to be paid attention to 125.if !empty(DPLIBS) 126FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 127.else 128_nonlibs := ${DPADD:T:Nlib*:N*include} 129.if !empty(_nonlibs) 130FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 131.endif 132.endif 133.endif 134 135.if !make(gendirdeps) 136.END: gendirdeps 137.endif 138 139# if we don't have OBJS, then .depend isn't useful 140.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 141# some makefiles and/or targets contain 142# circular dependencies if you dig too deep 143# (as meta mode is apt to do) 144# so we provide a means of suppressing them. 145# the input to the loop below is target: dependency 146# with just one dependency per line. 147# Also some targets are not really local, or use random names. 148# Use local.autodep.mk to provide local additions! 149SUPPRESS_DEPEND += \ 150 ${SB:S,/,_,g}* \ 151 *:y.tab.c \ 152 *.c:*.c \ 153 *.h:*.h 154 155.NOPATH: .depend 156# we use ${.MAKE.META.CREATED} to trigger an update but 157# we process using ${.MAKE.META.FILES} 158# the double $$ defers initial evaluation 159# if necessary, we fake .po dependencies, just so the result 160# in Makefile.depend* is stable 161# The current objdir may be referred to in various ways 162OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 163_depend = .depend 164# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 165# we actually only care about the .SUFFIXES of files that might be 166# generated by tools like yacc. 167DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 168.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 169 @echo "Updating $@: ${.OODATE:T:[1..8]}" 170 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 171 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 172 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 173 sort -u | \ 174 while read t d; do \ 175 case "$$d:" in $$t) continue;; esac; \ 176 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 177 echo $$t $$d; \ 178 done > $@.${.MAKE.PID} 179 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 180 *.po.*) mv $@.${.MAKE.PID} $@;; \ 181 *) { cat $@.${.MAKE.PID}; \ 182 sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 183 rm -f $@.${.MAKE.PID};; \ 184 esac 185.else 186# make sure this exists 187.depend: 188# do _not_ assume that .depend is in any fit state for us to use 189CAT_DEPEND = /dev/null 190.if ${.MAKE.LEVEL} > 0 191.export CAT_DEPEND 192.endif 193_depend = 194.endif 195 196.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 197.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 198.endif 199 200.if ${UPDATE_DEPENDFILE} == "yes" 201gendirdeps: ${_DEPENDFILE} 202.endif 203 204.if !target(${_DEPENDFILE}) 205.if ${_bootstrap_dirdeps} == "yes" 206# We are boot-strapping a new directory 207# Use DPADD to seed DIRDEPS 208.if !empty(DPADD) 209# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 210# needs to be qualified in DIRDEPS 211# The pseudo machine "host" is used for HOST_TARGET 212DIRDEPS += \ 213 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 214 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 215 216.endif 217.endif 218 219_gendirdeps_mutex = 220.if defined(NEED_GENDIRDEPS_MUTEX) 221# If a src dir gets built with multiple object dirs, 222# we need a mutex. Obviously, this is best avoided. 223# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 224# you either need to mutex, or ensure only one machine builds at a time! 225# lockf is an example of a suitable tool 226LOCKF ?= /usr/bin/lockf 227.if exists(${LOCKF}) 228GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 229.endif 230.if empty(GENDIRDEPS_MUTEXER) 231.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 232.else 233_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 234.endif 235.endif 236 237# If we have META_XTRAS we most likely did not create them 238# but we need to behave as if we did. 239# Avoid adding glob patterns to .MAKE.META.CREATED though. 240.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 241 242.if make(gendirdeps) 243META_FILES = *.meta 244.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 245META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 246.else 247# if we have 1000's of .o.meta, .So.meta etc we need only look at one set 248# it is left as an exercise for the reader to work out what this does 249META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 250 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 251.endif 252 253.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 254.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 255.endif 256 257.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 258.export GENDIRDEPS_FILTER 259.endif 260 261# we might have .../ in MAKESYSPATH 262_makesyspath:= ${_PARSEDIR} 263${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 264 @echo Checking $@: ${.OODATE:T:[1..8]} 265 @(cd . && \ 266 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 267 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 268 MAKESYSPATH=${_makesyspath} \ 269 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \ 270 META_FILES='${META_XTRAS:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}') 271 @test -s $@ && touch $@; : 272.endif 273 274.endif 275.endif 276 277.if ${_bootstrap_dirdeps} == "yes" 278.if ${BUILD_AT_LEVEL0:Uno} == "no" 279DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 280.endif 281# make sure this is included at least once 282.include <dirdeps.mk> 283.else 284${_DEPENDFILE}: .PRECIOUS 285.endif 286 287CLEANFILES += *.meta filemon.* *.db 288 289# these make it easy to gather some stats 290now_utc = ${%s:L:gmtime} 291start_utc := ${now_utc} 292 293meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 294 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 295 296#.END: _reldir_finish 297.if target(gendirdeps) 298_reldir_finish: gendirdeps 299.endif 300_reldir_finish: .NOMETA 301 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 302 303#.ERROR: _reldir_failed 304_reldir_failed: .NOMETA 305 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 306 307.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 308.END: _reldir_finish 309.ERROR: _reldir_failed 310.endif 311 312.endif 313