dirdeps.mk revision 292068
1# $Id: dirdeps.mk,v 1.55 2015/10/20 22:04:53 sjg Exp $ 2 3# Copyright (c) 2010-2013, Juniper Networks, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27# Much of the complexity here is for supporting cross-building. 28# If a tree does not support that, simply using plain Makefile.depend 29# should provide sufficient clue. 30# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 31# as expected below. 32 33# Note: this file gets multiply included. 34# This is what we do with DIRDEPS 35 36# DIRDEPS: 37# This is a list of directories - relative to SRCTOP, it is 38# normally only of interest to .MAKE.LEVEL 0. 39# In some cases the entry may be qualified with a .<machine> 40# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 41# for example to force building something for the pseudo 42# machines "host" or "common" regardless of current ${MACHINE}. 43# 44# All unqualified entries end up being qualified with .${TARGET_SPEC} 45# and partially qualified (if TARGET_SPEC_VARS has multiple 46# entries) are also expanded to a full .<target_spec>. 47# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 48# correctly when visiting each entry. 49# 50# The fully qualified directory entries are used to construct a 51# dependency graph that will drive the build later. 52# 53# Also, for each fully qualified directory target, we will search 54# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 55# dependencies. We use Makefile.depend (default value for 56# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 57# distinguish them from others. 58# 59# Each Makefile.depend file sets DEP_RELDIR to be the 60# the RELDIR (path relative to SRCTOP) for its directory, and 61# since each Makefile.depend file includes dirdeps.mk, this 62# processing is recursive and results in .MAKE.LEVEL 0 learning the 63# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 64# 65# BUILD_AT_LEVEL0 66# Indicates whether .MAKE.LEVEL 0 builds anything: 67# if "no" sub-makes are used to build everything, 68# if "yes" sub-makes are only used to build for other machines. 69# It is best to use "no", but this can require fixing some 70# makefiles to not do anything at .MAKE.LEVEL 0. 71# 72# TARGET_SPEC_VARS 73# The default value is just MACHINE, and for most environments 74# this is sufficient. The _DIRDEP_USE target actually sets 75# both MACHINE and TARGET_SPEC to the suffix of the current 76# target so that in the general case TARGET_SPEC can be ignored. 77# 78# If more than MACHINE is needed then sys.mk needs to decompose 79# TARGET_SPEC and set the relevant variables accordingly. 80# It is important that MACHINE be included in and actually be 81# the first member of TARGET_SPEC_VARS. This allows other 82# variables to be considered optional, and some of the treatment 83# below relies on MACHINE being the first entry. 84# Note: TARGET_SPEC cannot contain any '.'s so the target 85# triple used by compiler folk won't work (directly anyway). 86# 87# For example: 88# 89# # Always list MACHINE first, 90# # other variables might be optional. 91# TARGET_SPEC_VARS = MACHINE TARGET_OS 92# .if ${TARGET_SPEC:Uno:M*,*} != "" 93# _tspec := ${TARGET_SPEC:S/,/ /g} 94# MACHINE := ${_tspec:[1]} 95# TARGET_OS := ${_tspec:[2]} 96# # etc. 97# # We need to stop that TARGET_SPEC affecting any submakes 98# # and deal with MACHINE=${TARGET_SPEC} in the environment. 99# TARGET_SPEC = 100# # export but do not track 101# .export-env TARGET_SPEC 102# .export ${TARGET_SPEC_VARS} 103# .for v in ${TARGET_SPEC_VARS:O:u} 104# .if empty($v) 105# .undef $v 106# .endif 107# .endfor 108# .endif 109# # make sure we know what TARGET_SPEC is 110# # as we may need it to find Makefile.depend* 111# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 112# 113 114# touch this at your peril 115_DIRDEP_USE_LEVEL?= 0 116.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 117# only the first instance is interested in all this 118 119# First off, we want to know what ${MACHINE} to build for. 120# This can be complicated if we are using a mixture of ${MACHINE} specific 121# and non-specific Makefile.depend* 122 123.if !target(_DIRDEP_USE) 124# do some setup we only need once 125_CURDIR ?= ${.CURDIR} 126_OBJDIR ?= ${.OBJDIR} 127 128now_utc = ${%s:L:gmtime} 129.if !defined(start_utc) 130start_utc := ${now_utc} 131.endif 132 133# make sure these are empty to start with 134_DEP_TARGET_SPEC = 135_DIRDEP_CHECKED = 136 137# If TARGET_SPEC_VARS is other than just MACHINE 138# it should be set by sys.mk or similar by now. 139# TARGET_SPEC must not contain any '.'s. 140TARGET_SPEC_VARS ?= MACHINE 141# this is what we started with 142TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 143# this is what we mostly use below 144DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 145# make sure we have defaults 146.for v in ${TARGET_SPEC_VARS} 147DEP_$v ?= ${$v} 148.endfor 149 150.if ${TARGET_SPEC_VARS:[#]} > 1 151# Ok, this gets more complex (putting it mildly). 152# In order to stay sane, we need to ensure that all the build_dirs 153# we compute below are fully qualified wrt DEP_TARGET_SPEC. 154# The makefiles may only partially specify (eg. MACHINE only), 155# so we need to construct a set of modifiers to fill in the gaps. 156# jot 10 should output 1 2 3 .. 10 157JOT ?= jot 158_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 159# this handles unqualified entries 160M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 161# there needs to be at least one item missing for these to make sense 162.for i in ${_tspec_x:[2..-1]} 163_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 164_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 165M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 166.endfor 167.else 168# A harmless? default. 169M_dep_qual_fixes = U 170.endif 171 172.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 173# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 174# you really want this set by sys.mk or similar 175.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 176.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 177.if ${TARGET_SPEC} != ${MACHINE} 178.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 179.endif 180.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 181.endif 182.endif 183 184_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 185_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 186 187# for machine specific dependfiles we require ${MACHINE} to be at the end 188# also for the sake of sanity we require a common prefix 189.if !defined(.MAKE.DEPENDFILE_PREFIX) 190# knowing .MAKE.DEPENDFILE_PREFIX helps 191.if !empty(_machine_dependfiles) 192.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 193.else 194.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 195.endif 196.endif 197 198 199# this is how we identify non-machine specific dependfiles 200N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 201 202.endif # !target(_DIRDEP_USE) 203 204# if we were included recursively _DEP_TARGET_SPEC should be valid. 205.if empty(_DEP_TARGET_SPEC) 206# we may or may not have included a dependfile yet 207.if defined(.INCLUDEDFROMFILE) 208_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 209.else 210_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 211.endif 212.if ${_debug_reldir:U0} 213.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 214.endif 215 216.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 217# this is all we have to work with 218DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 219_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 220.else 221_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 222.endif 223.if !empty(_last_dependfile) 224# record that we've read dependfile for this 225_DIRDEP_CHECKED += ${_CURDIR}.${TARGET_SPEC} 226.endif 227.endif 228 229# by now _DEP_TARGET_SPEC should be set, parse it. 230.if ${TARGET_SPEC_VARS:[#]} > 1 231# we need to parse DEP_MACHINE may or may not contain more info 232_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 233.for i in ${_tspec_x} 234DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 235.endfor 236.for v in ${TARGET_SPEC_VARS:O:u} 237.if empty(DEP_$v) 238.undef DEP_$v 239.endif 240.endfor 241.else 242DEP_MACHINE := ${_DEP_TARGET_SPEC} 243.endif 244 245.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 246# This little trick let's us do 247# 248# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 249# 250all: 251${.TARGETS:Nall}: all 252DIRDEPS := ${.TARGETS:M*/*} 253# so that -DNO_DIRDEPS works 254DEP_RELDIR := ${DIRDEPS:R:[1]} 255# disable DIRDEPS_CACHE as it does not like this trick 256MK_DIRDEPS_CACHE = no 257.endif 258 259 260# pickup customizations 261# as below you can use !target(_DIRDEP_USE) to protect things 262# which should only be done once. 263.-include "local.dirdeps.mk" 264 265# the first time we are included the _DIRDEP_USE target will not be defined 266# we can use this as a clue to do initialization and other one time things. 267.if !target(_DIRDEP_USE) 268# make sure this target exists 269dirdeps: beforedirdeps .WAIT 270beforedirdeps: 271 272# We normally expect to be included by Makefile.depend.* 273# which sets the DEP_* macros below. 274DEP_RELDIR ?= ${RELDIR} 275 276# this can cause lots of output! 277# set to a set of glob expressions that might match RELDIR 278DEBUG_DIRDEPS ?= no 279 280# remember the initial value of DEP_RELDIR - we test for it below. 281_DEP_RELDIR := ${DEP_RELDIR} 282 283# things we skip for host tools 284SKIP_HOSTDIR ?= 285 286NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 287 288# things we always skip 289# SKIP_DIRDEPS allows for adding entries on command line. 290SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 291SKIP_DIR.host += ${SKIP_HOSTDIR} 292 293DEP_SKIP_DIR = ${SKIP_DIR} \ 294 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 295 ${SKIP_DIR.${DEP_MACHINE}:U} \ 296 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 297 298NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 299 300.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 301# confine ourselves to the original dir 302DIRDEPS_FILTER += M${_DEP_RELDIR}* 303.endif 304 305# this is what we run below 306DIRDEP_MAKE?= ${.MAKE} 307 308# we suppress SUBDIR when visiting the leaves 309# we assume sys.mk will set MACHINE_ARCH 310# you can add extras to DIRDEP_USE_ENV 311# if there is no makefile in the target directory, we skip it. 312_DIRDEP_USE: .USE .MAKE 313 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 314 test -s ${.TARGET:R}/$$m || continue; \ 315 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 316 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 317 TARGET_SPEC=${.TARGET:E} \ 318 MACHINE=${.TARGET:E} \ 319 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 320 break; \ 321 done 322 323.ifdef ALL_MACHINES 324# this is how you limit it to only the machines we have been built for 325# previously. 326.if empty(ONLY_MACHINE_LIST) 327.if !empty(ALL_MACHINE_LIST) 328# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 329_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 330.else 331_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 332.endif 333_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 334.else 335_only_machines := ${ONLY_MACHINE_LIST} 336.endif 337 338.if empty(_only_machines) 339# we must be boot-strapping 340_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 341.endif 342 343.else # ! ALL_MACHINES 344# if ONLY_MACHINE_LIST is set, we are limited to that 345# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 346# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 347_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 348.endif 349 350.if !empty(NOT_MACHINE_LIST) 351_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 352.endif 353 354# make sure we have a starting place? 355DIRDEPS ?= ${RELDIR} 356.endif # target 357 358# if repeatedly building the same target, 359# we can avoid the overhead of re-computing the tree dependencies. 360MK_DIRDEPS_CACHE ?= no 361BUILD_DIRDEPS_CACHE ?= no 362BUILD_DIRDEPS ?= yes 363 364.if !defined(NO_DIRDEPS) 365.if ${MK_DIRDEPS_CACHE} == "yes" 366# this is where we will cache all our work 367DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 368 369# just ensure this exists 370build-dirdeps: 371 372M_oneperline = @x@\\${.newline} $$x@ 373 374.if ${BUILD_DIRDEPS_CACHE} == "no" 375.if !target(dirdeps-cached) 376# we do this via sub-make 377BUILD_DIRDEPS = no 378 379dirdeps: dirdeps-cached 380dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 381 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 382 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 383 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 384 385# these should generally do 386BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 387BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 388 389# we need the .meta file to ensure we update if 390# any of the Makefile.depend* changed. 391# We do not want to compare the command line though. 392${DIRDEPS_CACHE}: .META .NOMETA_CMP 393 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 394 echo 'BUILD_DIRDEPS=no'; echo; \ 395 echo '.include <dirdeps.mk>'; \ 396 } > ${.TARGET}.new 397 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 398 DIRDEPS="${DIRDEPS}" \ 399 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 400 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 401 .MAKE.DEPENDFILE=.none \ 402 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 403 mv ${.TARGET}.new ${.TARGET} 404 405.endif 406.elif !target(_count_dirdeps) 407# we want to capture the dirdeps count in the cache 408.END: _count_dirdeps 409_count_dirdeps: .NOMETA 410 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 411 412.endif 413.elif !make(dirdeps) && !target(_count_dirdeps) 414beforedirdeps: _count_dirdeps 415_count_dirdeps: .NOMETA 416 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 417 418.endif 419.endif 420 421.if ${BUILD_DIRDEPS} == "yes" 422.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 423_debug_reldir = 1 424.else 425_debug_reldir = 0 426.endif 427.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 428_debug_search = 1 429.else 430_debug_search = 0 431.endif 432 433# the rest is done repeatedly for every Makefile.depend we read. 434# if we are anything but the original dir we care only about the 435# machine type we were included for.. 436 437.if ${DEP_RELDIR} == "." 438_this_dir := ${SRCTOP} 439.else 440_this_dir := ${SRCTOP}/${DEP_RELDIR} 441.endif 442 443# on rare occasions, there can be a need for extra help 444_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 445.-include "${_dep_hack}" 446 447.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 448# this should be all 449_machines := ${DEP_MACHINE} 450.else 451# this is the machine list we actually use below 452_machines := ${_only_machines} 453 454.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 455# we need to build this guy's dependencies for host as well. 456_machines += host 457.endif 458 459_machines := ${_machines:O:u} 460.endif 461 462.if ${TARGET_SPEC_VARS:[#]} > 1 463# we need to tweak _machines 464_dm := ${DEP_MACHINE} 465# apply the same filtering that we do when qualifying DIRDEPS. 466# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 467_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 468DEP_MACHINE := ${_dm} 469.endif 470 471# reset each time through 472_build_dirs = 473 474.if ${DEP_RELDIR} == ${_DEP_RELDIR} 475# pickup other machines for this dir if necessary 476.if ${BUILD_AT_LEVEL0:Uyes} == "no" 477_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 478.else 479_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 480.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 481# pickup local dependencies now 482.-include <.depend> 483.endif 484.endif 485.endif 486 487.if ${_debug_reldir} 488.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 489.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 490.endif 491 492.if !empty(DIRDEPS) 493# these we reset each time through as they can depend on DEP_MACHINE 494DEP_DIRDEPS_FILTER = \ 495 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 496 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 497 ${DIRDEPS_FILTER:U} 498.if empty(DEP_DIRDEPS_FILTER) 499# something harmless 500DEP_DIRDEPS_FILTER = U 501.endif 502 503# this is what we start with 504__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 505 506# some entries may be qualified with .<machine> 507# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 508# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 509__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 510__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 511 512.if ${DEP_RELDIR} == ${_DEP_RELDIR} 513# if it was called out - we likely need it. 514__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 515__qual_depdirs += ${__hostdpadd} 516.endif 517 518.if ${_debug_reldir} 519.info depdirs=${__depdirs} 520.info qualified=${__qual_depdirs} 521.info unqualified=${__unqual_depdirs} 522.endif 523 524# _build_dirs is what we will feed to _DIRDEP_USE 525_build_dirs += \ 526 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 527 ${__qual_depdirs:N*.host} \ 528 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 529 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 530 531# qualify everything now 532_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 533 534.endif # empty DIRDEPS 535 536# Normally if doing make -V something, 537# we do not want to waste time chasing DIRDEPS 538# but if we want to count the number of Makefile.depend* read, we do. 539.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 540.if !empty(_build_dirs) 541.if ${BUILD_DIRDEPS_CACHE} == "yes" 542x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 543 echo 'dirdeps: ${_build_dirs:${M_oneperline}}'; echo; } >&3; echo 544x!= { ${_build_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 545.else 546# this makes it all happen 547dirdeps: ${_build_dirs} 548.endif 549${_build_dirs}: _DIRDEP_USE 550 551.if ${_debug_reldir} 552.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 553.endif 554 555# this builds the dependency graph 556.for m in ${_machines} 557# it would be nice to do :N${.TARGET} 558.if !empty(__qual_depdirs) 559.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 560.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 561.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 562.endif 563.if ${BUILD_DIRDEPS_CACHE} == "yes" 564x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 565.else 566${_this_dir}.$m: ${_build_dirs:M*.$q} 567.endif 568.endfor 569.endif 570.if ${_debug_reldir} 571.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 572.endif 573.if ${BUILD_DIRDEPS_CACHE} == "yes" 574x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 575.else 576${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 577.endif 578.endfor 579 580.endif 581 582# Now find more dependencies - and recurse. 583.for d in ${_build_dirs} 584.if ${_DIRDEP_CHECKED:M$d} == "" 585# once only 586_DIRDEP_CHECKED += $d 587.if ${_debug_search} 588.info checking $d 589.endif 590# Note: _build_dirs is fully qualifed so d:R is always the directory 591.if exists(${d:R}) 592# Warning: there is an assumption here that MACHINE is always 593# the first entry in TARGET_SPEC_VARS. 594# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 595_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 596.if !empty(_m) 597# M_dep_qual_fixes isn't geared to Makefile.depend 598_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 599.if ${_debug_search} 600.info Looking for ${_qm} 601.endif 602# we pass _DEP_TARGET_SPEC to tell the next step what we want 603_DEP_TARGET_SPEC := ${d:E} 604# some makefiles may still look at this 605_DEP_MACHINE := ${d:E:C/,.*//} 606# set this "just in case" 607# we can skip :tA since we computed the path above 608DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 609# and reset this 610DIRDEPS = 611.if ${_debug_reldir} && ${_qm} != ${_m} 612.info loading ${_m} for ${d:E} 613.endif 614.include <${_m}> 615.endif 616.endif 617.endif 618.endfor 619 620.endif # -V 621.endif # BUILD_DIRDEPS 622 623.elif ${.MAKE.LEVEL} > 42 624.error You should have stopped recursing by now. 625.else 626# we are building something 627DEP_RELDIR := ${RELDIR} 628_DEP_RELDIR := ${RELDIR} 629# pickup local dependencies 630.-include <.depend> 631.endif 632 633# bootstrapping new dependencies made easy? 634.if (make(bootstrap) || make(bootstrap-recurse)) && !target(bootstrap) 635 636.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 637# stop here 638${.TARGETS:Mboot*}: 639.else 640# find a Makefile.depend to use as _src 641_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 642.if empty(_src) 643.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T} 644.endif 645 646_src?= ${.MAKE.DEPENDFILE:T} 647 648bootstrap-this: .NOTMAIN 649 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 650 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 651 652bootstrap: bootstrap-recurse 653bootstrap-recurse: bootstrap-this 654 655_mf := ${.PARSEFILE} 656bootstrap-recurse: .NOTMAIN .MAKE 657 @cd ${SRCTOP} && \ 658 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 659 test -d $$d || d=$${d%.*}; \ 660 test -d $$d || continue; \ 661 echo "Checking $$d for bootstrap ..."; \ 662 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 663 done 664 665.endif 666.endif 667