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