1# $FreeBSD$ 2# $Id: meta.autodep.mk,v 1.50 2018/06/08 01:25:31 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 24PICO?= .pico 25NOSSPPICO?= .nossppico 26 27.if defined(SRCS) 28# it would be nice to be able to query .SUFFIXES 29OBJ_EXTENSIONS+= .o .po .lo ${PICO} ${NOSSPPICO} 30 31# explicit dependencies help short-circuit .SUFFIX searches 32SRCS_DEP_FILTER+= N*.[hly] 33.for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}} 34.for e in ${OBJ_EXTENSIONS:O:u} 35.if !target(${s:T:R}$e) 36${s:T:R}$e: $s 37.endif 38.endfor 39.endfor 40.endif 41 42.if make(gendirdeps) 43# you are supposed to know what you are doing! 44UPDATE_DEPENDFILE = yes 45.elif !empty(.TARGETS) && !make(all) 46# do not update the *depend* files 47# unless we are building the entire directory or the default target. 48# NO means don't update .depend - or Makefile.depend* 49# no means update .depend but not Makefile.depend* 50UPDATE_DEPENDFILE = NO 51.elif ${.MAKEFLAGS:M-k} != "" 52# it is a bad idea to update anything 53UPDATE_DEPENDFILE = NO 54.endif 55 56_CURDIR ?= ${.CURDIR} 57_OBJDIR ?= ${.OBJDIR} 58_OBJTOP ?= ${OBJTOP} 59_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 60_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 61 62.if ${.MAKE.LEVEL} > 0 || ${BUILD_AT_LEVEL0:Uyes:tl} == "yes" 63# do not allow auto update if we ever built this dir without filemon 64NO_FILEMON_COOKIE = .nofilemon 65CLEANFILES += ${NO_FILEMON_COOKIE} 66.if ${.MAKE.MODE:Uno:Mnofilemon} != "" 67UPDATE_DEPENDFILE = NO 68all: ${NO_FILEMON_COOKIE} 69${NO_FILEMON_COOKIE}: .NOMETA 70 @echo UPDATE_DEPENDFILE=NO > ${.TARGET} 71.elif exists(${NO_FILEMON_COOKIE}) 72UPDATE_DEPENDFILE = NO 73.warning ${RELDIR} built with nofilemon; UPDATE_DEPENDFILE=NO 74.endif 75.endif 76 77.if ${.MAKE.LEVEL} == 0 78.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 79UPDATE_DEPENDFILE = NO 80.endif 81.endif 82.if !exists(${_DEPENDFILE}) 83_bootstrap_dirdeps = yes 84.endif 85_bootstrap_dirdeps ?= no 86UPDATE_DEPENDFILE ?= yes 87 88.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 89.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 90.endif 91 92.if !empty(XMAKE_META_FILE) 93.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 94# we cannot get accurate dependencies from an update build 95UPDATE_DEPENDFILE = NO 96.else 97META_XTRAS += ${XMAKE_META_FILE} 98.endif 99.endif 100 101.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 102# if it isn't supposed to be touched by us the Makefile should have 103# UPDATE_DEPENDFILE = no 104WANT_UPDATE_DEPENDFILE ?= yes 105.endif 106 107.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 108.if ${.MAKE.MODE:Uno:Mmeta*} == "" || ${.MAKE.MODE:Uno:M*read*} != "" 109UPDATE_DEPENDFILE = no 110.endif 111 112.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 113.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 114.endif 115 116.if ${UPDATE_DEPENDFILE:tl} == "yes" 117# sometimes we want .meta files generated to aid debugging/error detection 118# but do not want to consider them for dependencies 119# for example the result of running configure 120# just make sure this is not empty 121META_FILE_FILTER ?= N.meta 122# never consider these 123META_FILE_FILTER += Ndirdeps.cache* 124 125.if !empty(DPADD) 126# if we have any non-libs in DPADD, 127# they probably need to be paid attention to 128.if !empty(DPLIBS) 129FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 130.else 131_nonlibs := ${DPADD:T:Nlib*:N*include} 132.if !empty(_nonlibs) 133FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 134.endif 135.endif 136.endif 137 138.if !make(gendirdeps) 139.END: gendirdeps 140.endif 141 142# if we don't have OBJS, then .depend isn't useful 143.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 144# some makefiles and/or targets contain 145# circular dependencies if you dig too deep 146# (as meta mode is apt to do) 147# so we provide a means of suppressing them. 148# the input to the loop below is target: dependency 149# with just one dependency per line. 150# Also some targets are not really local, or use random names. 151# Use local.autodep.mk to provide local additions! 152SUPPRESS_DEPEND += \ 153 ${SB:S,/,_,g}* \ 154 *:y.tab.c \ 155 *.c:*.c \ 156 *.h:*.h 157 158.NOPATH: .depend 159# we use ${.MAKE.META.CREATED} to trigger an update but 160# we process using ${.MAKE.META.FILES} 161# the double $$ defers initial evaluation 162# if necessary, we fake .po dependencies, just so the result 163# in Makefile.depend* is stable 164# The current objdir may be referred to in various ways 165OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 166_depend = .depend 167# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 168# we actually only care about the .SUFFIXES of files that might be 169# generated by tools like yacc. 170DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 171.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 172 @echo "Updating $@: ${.OODATE:T:[1..8]}" 173 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 174 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 175 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 176 sort -u | \ 177 while read t d; do \ 178 case "$$d:" in $$t) continue;; esac; \ 179 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 180 echo $$t $$d; \ 181 done > $@.${.MAKE.PID} 182 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 183 *.po.*) mv $@.${.MAKE.PID} $@;; \ 184 *) { cat $@.${.MAKE.PID}; \ 185 sed 's,\${NOSSPPICO}:,.o:,;s,\${PICO}:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 186 rm -f $@.${.MAKE.PID};; \ 187 esac 188.else 189# make sure this exists 190.depend: 191# do _not_ assume that .depend is in any fit state for us to use 192CAT_DEPEND = /dev/null 193.if ${.MAKE.LEVEL} > 0 194.export CAT_DEPEND 195.endif 196_depend = 197.endif 198 199.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 200.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 201.endif 202 203.if ${UPDATE_DEPENDFILE} == "yes" 204gendirdeps: ${_DEPENDFILE} 205.endif 206 207.if !target(${_DEPENDFILE}) 208.if ${_bootstrap_dirdeps} == "yes" 209# We are boot-strapping a new directory 210# Use DPADD to seed DIRDEPS 211.if !empty(DPADD) 212# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 213# needs to be qualified in DIRDEPS 214# The pseudo machine "host" is used for HOST_TARGET 215DIRDEPS += \ 216 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 217 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:N${STAGE_ROOT:U${_OBJTOP}}/*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 218 219.endif 220.endif 221 222_gendirdeps_mutex = 223.if defined(NEED_GENDIRDEPS_MUTEX) 224# If a src dir gets built with multiple object dirs, 225# we need a mutex. Obviously, this is best avoided. 226# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 227# you either need to mutex, or ensure only one machine builds at a time! 228# lockf is an example of a suitable tool 229LOCKF ?= /usr/bin/lockf 230.if exists(${LOCKF}) 231GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 232.endif 233.if empty(GENDIRDEPS_MUTEXER) 234.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 235.else 236_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 237.endif 238.endif 239 240# If we have META_XTRAS we most likely did not create them 241# but we need to behave as if we did. 242# Avoid adding glob patterns to .MAKE.META.CREATED though. 243.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 244 245.if make(gendirdeps) 246META_FILES = *.meta 247.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 248META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 249.else 250# if we have 1000's of .o.meta, ${PICO}.meta etc we need only look at one set 251# it is left as an exercise for the reader to work out what this does 252META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 253 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 254.endif 255 256.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 257.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 258.endif 259 260.if ${.MAKE.LEVEL} > 0 261.if ${UPDATE_DEPENDFILE} == "yes" 262.-include <${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.options> 263.endif 264.if !empty(GENDIRDEPS_FILTER) 265.export GENDIRDEPS_FILTER 266.endif 267# export to avoid blowing command line limit 268META_FILES := ${META_XTRAS:U:O:u} ${META_FILES:U:T:O:u:${META_FILE_FILTER:ts:}} 269.export META_FILES 270.endif 271 272# we might have .../ in MAKESYSPATH 273_makesyspath:= ${_PARSEDIR} 274${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 275 @echo Checking $@: ${.OODATE:T:[1..8]} 276 @(cd . && ${GENDIRDEPS_ENV} \ 277 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 278 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 279 MAKESYSPATH=${_makesyspath} \ 280 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE}) 281 @test -s $@ && touch $@; : 282.endif 283 284.endif 285.endif 286 287.if ${_bootstrap_dirdeps} == "yes" 288.if ${BUILD_AT_LEVEL0:Uno} == "no" 289DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 290.endif 291# make sure this is included at least once 292.include <dirdeps.mk> 293.else 294${_DEPENDFILE}: .PRECIOUS 295.endif 296 297CLEANFILES += *.meta filemon.* *.db 298 299# these make it easy to gather some stats 300now_utc = ${%s:L:gmtime} 301start_utc := ${now_utc} 302 303meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 304 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 305 306#.END: _reldir_finish 307.if target(gendirdeps) 308_reldir_finish: gendirdeps 309.endif 310_reldir_finish: .NOMETA 311 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 312 313#.ERROR: _reldir_failed 314_reldir_failed: .NOMETA 315 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 316 317.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 318.END: _reldir_finish 319.ERROR: _reldir_failed 320.endif 321 322.endif 323