1# $Id: meta.autodep.mk,v 1.39 2015/12/07 04:35:32 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_OBJDIR ?= ${.OBJDIR} 54_OBJTOP ?= ${OBJTOP} 55_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 56_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 57 58.if ${.MAKE.LEVEL} == 0 59.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no" 60UPDATE_DEPENDFILE = NO 61.endif 62.endif 63.if !exists(${_DEPENDFILE}) 64_bootstrap_dirdeps = yes 65.endif 66_bootstrap_dirdeps ?= no 67UPDATE_DEPENDFILE ?= yes 68 69.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 70.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 71.endif 72 73.if !empty(XMAKE_META_FILE) 74.if exists(${.OBJDIR}/${XMAKE_META_FILE}) 75# we cannot get accurate dependencies from an update build 76UPDATE_DEPENDFILE = NO 77.else 78META_XTRAS += ${XMAKE_META_FILE} 79.endif 80.endif 81 82.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE}) 83# if it isn't supposed to be touched by us the Makefile should have 84# UPDATE_DEPENDFILE = no 85WANT_UPDATE_DEPENDFILE ?= yes 86.endif 87 88.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no" 89.if ${.MAKE.MODE:Mmeta*} == "" || ${.MAKE.MODE:M*read*} != "" 90UPDATE_DEPENDFILE = no 91.endif 92 93.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 94.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE} 95.endif 96 97.if ${UPDATE_DEPENDFILE:tl} == "yes" 98# sometimes we want .meta files generated to aid debugging/error detection 99# but do not want to consider them for dependencies 100# for example the result of running configure 101# just make sure this is not empty 102META_FILE_FILTER ?= N.meta 103# never consider these 104META_FILE_FILTER += Ndirdeps.cache* 105 106.if !empty(DPADD) 107# if we have any non-libs in DPADD, 108# they probably need to be paid attention to 109.if !empty(DPLIBS) 110FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}} 111.else 112_nonlibs := ${DPADD:T:Nlib*:N*include} 113.if !empty(_nonlibs) 114FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@} 115.endif 116.endif 117.endif 118 119.if !make(gendirdeps) 120.END: gendirdeps 121.endif 122 123# if we don't have OBJS, then .depend isn't useful 124.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "") 125# some makefiles and/or targets contain 126# circular dependencies if you dig too deep 127# (as meta mode is apt to do) 128# so we provide a means of suppressing them. 129# the input to the loop below is target: dependency 130# with just one dependency per line. 131# Also some targets are not really local, or use random names. 132# Use local.autodep.mk to provide local additions! 133SUPPRESS_DEPEND += \ 134 ${SB:S,/,_,g}* \ 135 *:y.tab.c \ 136 *.c:*.c \ 137 *.h:*.h 138 139.NOPATH: .depend 140# we use ${.MAKE.META.CREATED} to trigger an update but 141# we process using ${.MAKE.META.FILES} 142# the double $$ defers initial evaluation 143# if necessary, we fake .po dependencies, just so the result 144# in Makefile.depend* is stable 145# The current objdir may be referred to in various ways 146OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR} 147_depend = .depend 148# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES} 149# we actually only care about the .SUFFIXES of files that might be 150# generated by tools like yacc. 151DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh 152.depend: .NOMETA $${.MAKE.META.CREATED} ${_this} 153 @echo "Updating $@: ${.OODATE:T:[1..8]}" 154 @egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \ 155 sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \ 156 -e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \ 157 sort -u | \ 158 while read t d; do \ 159 case "$$d:" in $$t) continue;; esac; \ 160 case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \ 161 echo $$t $$d; \ 162 done > $@.${.MAKE.PID} 163 @case "${.MAKE.META.FILES:T:M*.po.*}" in \ 164 *.po.*) mv $@.${.MAKE.PID} $@;; \ 165 *) { cat $@.${.MAKE.PID}; \ 166 sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \ 167 rm -f $@.${.MAKE.PID};; \ 168 esac 169.else 170# make sure this exists 171.depend: 172# do _not_ assume that .depend is in any fit state for us to use 173CAT_DEPEND = /dev/null 174.if ${.MAKE.LEVEL} > 0 175.export CAT_DEPEND 176.endif 177_depend = 178.endif 179 180.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 181.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend} 182.endif 183 184.if ${UPDATE_DEPENDFILE} == "yes" 185gendirdeps: ${_DEPENDFILE} 186.endif 187 188.if !target(${_DEPENDFILE}) 189.if ${_bootstrap_dirdeps} == "yes" 190# We are boot-strapping a new directory 191# Use DPADD to seed DIRDEPS 192.if !empty(DPADD) 193# anything which matches ${_OBJROOT}* but not ${_OBJTOP}* 194# needs to be qualified in DIRDEPS 195# The pseudo machine "host" is used for HOST_TARGET 196DIRDEPS += \ 197 ${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \ 198 ${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u} 199 200.endif 201.endif 202 203_gendirdeps_mutex = 204.if defined(NEED_GENDIRDEPS_MUTEX) 205# If a src dir gets built with multiple object dirs, 206# we need a mutex. Obviously, this is best avoided. 207# Note if .MAKE.DEPENDFILE is common for all ${MACHINE} 208# you either need to mutex, or ensure only one machine builds at a time! 209# lockf is an example of a suitable tool 210LOCKF ?= /usr/bin/lockf 211.if exists(${LOCKF}) 212GENDIRDEPS_MUTEXER ?= ${LOCKF} -k 213.endif 214.if empty(GENDIRDEPS_MUTEXER) 215.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set 216.else 217_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile} 218.endif 219.endif 220 221# If we have META_XTRAS we most likely did not create them 222# but we need to behave as if we did. 223# Avoid adding glob patterns to .MAKE.META.CREATED though. 224.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u} 225 226.if make(gendirdeps) 227META_FILES = *.meta 228.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no" 229META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u} 230.else 231# if we have 1000's of .o.meta, .So.meta etc we need only look at one set 232# it is left as an exercise for the reader to work out what this does 233META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \ 234 ${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u} 235.endif 236 237.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != "" 238.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS} 239.endif 240 241.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 242.export GENDIRDEPS_FILTER 243.endif 244 245# we might have .../ in MAKESYSPATH 246_makesyspath:= ${_PARSEDIR} 247${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED} 248 @echo Checking $@: ${.OODATE:T:[1..8]} 249 @(cd . && \ 250 SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \ 251 DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \ 252 MAKESYSPATH=${_makesyspath} \ 253 ${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \ 254 META_FILES='${META_XTRAS:T:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}') 255 @test -s $@ && touch $@; : 256.endif 257 258.endif 259.endif 260 261.if ${_bootstrap_dirdeps} == "yes" 262.if ${BUILD_AT_LEVEL0:Uno} == "no" 263DIRDEPS+= ${RELDIR}.${TARGET_SPEC:U${MACHINE}} 264.endif 265# make sure this is included at least once 266.include <dirdeps.mk> 267.else 268${_DEPENDFILE}: .PRECIOUS 269.endif 270 271CLEANFILES += *.meta filemon.* *.db 272 273# these make it easy to gather some stats 274now_utc = ${%s:L:gmtime} 275start_utc := ${now_utc} 276 277meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 278 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 279 280#.END: _reldir_finish 281.if target(gendirdeps) 282_reldir_finish: gendirdeps 283.endif 284_reldir_finish: .NOMETA 285 @echo "${TIME_STAMP} Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 286 287#.ERROR: _reldir_failed 288_reldir_failed: .NOMETA 289 @echo "${TIME_STAMP} Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 290 291.if defined(WITH_META_STATS) && ${.MAKE.LEVEL} > 0 292.END: _reldir_finish 293.ERROR: _reldir_failed 294.endif 295 296.endif 297