1# $FreeBSD$ 2# $Id: gendirdeps.mk,v 1.41 2019/11/21 23:50:40 sjg Exp $ 3 4# Copyright (c) 2010-2013, Juniper Networks, Inc. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28# 29# This makefile [re]generates ${.MAKE.DEPENDFILE} 30# 31 32.include <install-new.mk> 33 34# Assumptions: 35# RELDIR is the relative path from ${SRCTOP} to ${_CURDIR} 36# (SRCTOP is ${SB}/src) 37# _CURDIR is the absolute version of ${.CURDIR} 38# _OBJDIR is the absolute version of ${.OBJDIR} 39# _objroot is realpath of ${_OBJTOP} without ${MACHINE} 40# this may be different from _OBJROOT if $SB/obj is a 41# symlink to another filesystem. 42# _objroot must be a prefix match for _objtop 43 44.MAIN: all 45 46# keep this simple 47.MAKE.MODE = compat 48 49all: 50 51_CURDIR ?= ${.CURDIR} 52_OBJDIR ?= ${.OBJDIR} 53_OBJTOP ?= ${OBJTOP} 54_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 55.if ${_OBJROOT:M*/} 56_slash=/ 57.else 58_slash= 59.endif 60_objroot ?= ${_OBJROOT:tA}${_slash} 61 62_this = ${.PARSEDIR}/${.PARSEFILE} 63 64# remember what to make 65_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 66 67# We do _not_ want to read our own output! 68.MAKE.DEPENDFILE = /dev/null 69 70# caller should have set this 71META_FILES ?= ${.MAKE.META.FILES} 72 73.if !empty(META_FILES) 74 75.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 76# so we can compare below 77.-include <${_DEPENDFILE}> 78# yes, I mean :U with no value 79_DIRDEPS := ${DIRDEPS:U:O:u} 80.endif 81 82META_FILES := ${META_FILES:T:O:u} 83 84# pickup customizations 85.-include <local.gendirdeps.mk> 86 87# these are actually prefixes that we'll skip 88# they should all be absolute paths 89SKIP_GENDIRDEPS ?= 90.if !empty(SKIP_GENDIRDEPS) 91_skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' | 92.else 93_skip_gendirdeps = 94.endif 95 96# Below we will turn _{VAR} into ${VAR} which keeps this simple 97# GENDIRDEPS_FILTER_DIR_VARS is a list of dirs to be substiuted for. 98# GENDIRDEPS_FILTER_VARS is more general. 99# In each case order matters. 100.if !empty(GENDIRDEPS_FILTER_DIR_VARS) 101GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_DIR_VARS:@v@S,${$v},_{${v}},@} 102.endif 103.if !empty(GENDIRDEPS_FILTER_VARS) 104GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_VARS:@v@S,/${$v}/,/_{${v}}/,@:NS,//,*:u} 105.endif 106 107# this (*should* be set in meta.sys.mk) 108# is the script that extracts what we want. 109META2DEPS ?= ${.PARSEDIR}/meta2deps.sh 110META2DEPS := ${META2DEPS} 111 112.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != "" 113_time = time 114_sh_x = sh -x 115_py_d = -ddd 116.else 117_time = 118_sh_x = 119_py_d = 120.endif 121 122.if ${META2DEPS:E} == "py" 123# we can afford to do this all the time. 124DPDEPS ?= no 125META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} 126.if ${DPDEPS:tl} != "no" 127META2DEPS_CMD += -D ${DPDEPS} 128.endif 129META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' | 130.elif ${META2DEPS:E} == "sh" 131META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} OBJTOP=${_OBJTOP} 132.else 133META2DEPS_CMD ?= ${META2DEPS} 134.endif 135 136.if ${TARGET_OBJ_SPEC:U${MACHINE}} != ${MACHINE} 137META2DEPS_CMD += -T ${TARGET_OBJ_SPEC} 138.endif 139META2DEPS_CMD += \ 140 -R ${RELDIR} -H ${HOST_TARGET} \ 141 ${M2D_OBJROOTS:O:u:@o@-O $o@} \ 142 ${M2D_EXCLUDES:O:u:@o@-X $o@} \ 143 144 145M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot} 146.if defined(SB_OBJROOT) 147M2D_OBJROOTS += ${SB_OBJROOT} 148.endif 149.if defined(STAGE_ROOT) 150M2D_OBJROOTS += ${STAGE_ROOT} 151.endif 152.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" 153# meta2deps.py only groks objroot 154# so we need to give it what it expects 155# and tell it not to add machine qualifiers 156META2DEPS_ARGS += MACHINE=none 157.endif 158.if defined(SB_BACKING_SB) 159META2DEPS_CMD += -S ${SB_BACKING_SB}/src 160M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} 161.endif 162 163GENDIRDEPS_SEDCMDS += \ 164 -e 's,//*$$,,;s,\.${HOST_TARGET:Uhost}$$,.host,' \ 165 -e 's,\.${HOST_TARGET32:Uhost32}$$,.host32,' \ 166 -e 's,\.${MACHINE}$$,,' \ 167 -e 's:\.${TARGET_SPEC:U${MACHINE}}$$::' 168 169# we are only interested in the dirs 170# specifically those we read something from. 171# we canonicalize them to keep things simple 172# if we are using a split-fs sandbox, it gets a little messier. 173_objtop := ${_OBJTOP:tA} 174 175# some people put *.meta in META_XTRAS to make sure we get here 176_meta_files := ${META_FILES:N\*.meta:O:u} 177# assume a big list 178_meta_files_arg= @meta.list 179.if empty(_meta_files) && ${META_FILES:M\*.meta} != "" 180# XXX this should be considered a bad idea, 181# since we cannot ignore stale .meta 182x != cd ${_OBJDIR} && find . -name '*.meta' -print -o \( -type d ! -name . -prune \) | sed 's,^./,,' > meta.list; echo 183.elif ${_meta_files:[#]} > 500 184.export _meta_files 185x != echo; for m in $$_meta_files; do echo $$m; done > meta.list 186# _meta_files is consuming a lot of env space 187# that can impact command line length, 188# and we do not need it any more 189.undef _meta_files 190.unexport _meta_files 191.else 192_meta_files_arg:= ${_meta_files} 193.endif 194 195dir_list != cd ${_OBJDIR} && \ 196 ${META2DEPS_CMD} MACHINE=${MACHINE} \ 197 SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ 198 ${META2DEPS_ARGS} \ 199 ${_meta_files_arg} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 200 sed ${GENDIRDEPS_SEDCMDS} 201 202.if ${dir_list:M*ERROR\:*} != "" 203.warning ${dir_list:tW:C,.*(ERROR),\1,} 204.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} 205# we are not going to update anything 206.else 207dpadd_dir_list= 208.if !empty(DPADD) 209_nonlibs := ${DPADD:T:Nlib*:N*include} 210.if !empty(_nonlibs) 211ddep_list = 212.for f in ${_nonlibs:@x@${DPADD:M*/$x}@} 213.if exists($f.dirdep) 214ddep_list += $f.dirdep 215.elif exists(${f:H}.dirdep) 216ddep_list += ${f:H}.dirdep 217.else 218dir_list += ${f:H:tA} 219dpadd_dir_list += ${f:H:tA} 220.endif 221.endfor 222.if !empty(ddep_list) 223ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 224 sed ${GENDIRDEPS_SEDCMDS} 225 226.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 227.info ${RELDIR}: raw_dir_list='${dir_list}' 228.info ${RELDIR}: ddeps='${ddeps}' 229.endif 230dir_list += ${ddeps} 231.endif 232.endif 233.endif 234 235# DIRDEPS represent things that had to have been built first 236# so they should all be undir OBJTOP. 237# Note that ${_OBJTOP}/bsd/include/machine will get reported 238# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we 239# will want to visit bsd/include 240# so we add 241# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} 242# to GENDIRDEPS_DIR_LIST_XTRAS 243_objtops = ${OBJTOP} ${_OBJTOP} ${_objtop} 244_objtops := ${_objtops:O:u} 245dirdep_list = \ 246 ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \ 247 ${GENDIRDEPS_DIR_LIST_XTRAS} 248 249# sort longest first 250M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} 251 252# anything we use from an object dir other than ours 253# needs to be qualified with its .<machine> suffix 254# (we used the pseudo machine "host" for the HOST_TARGET). 255skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@} 256.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} 257# we need := so only skip_ql to this point applies 258ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} 259qualdir_list += ${ql.$o} 260.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 261.info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@} 262.endif 263skip_ql+= $o* 264.endfor 265 266dirdep_list := ${dirdep_list:O:u} 267qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} 268 269DIRDEPS = \ 270 ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ 271 ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} 272 273# We only consider things below $RELDIR/ if they have a makefile. 274# This is the same test that _DIRDEP_USE applies. 275# We have do a double test with dirdep_list as it _may_ contain 276# qualified dirs - if we got anything from a stage dir. 277# qualdir_list we know are all qualified. 278# It would be nice do peform this check for all of DIRDEPS, 279# but we cannot assume that all of the tree is present, 280# in fact we can only assume that RELDIR is. 281DIRDEPS += \ 282 ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ 283 ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} 284 285# what modifiers do we allow in GENDIRDEPS_FILTER 286GENDIRDEPS_FILTER_MASK += @CMNS 287DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:M[${GENDIRDEPS_FILTER_MASK:O:u:ts}]*:ts:}:C,//+,/,g:O:u} 288 289.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 290.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} 291.info ${RELDIR}: M2D_EXCLUDES=${M2D_EXCLUDES} 292.info ${RELDIR}: dir_list='${dir_list}' 293.info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}' 294.info ${RELDIR}: dirdep_list='${dirdep_list}' 295.info ${RELDIR}: qualdir_list='${qualdir_list}' 296.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' 297.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' 298.info ${RELDIR}: FORCE_DPADD='${DPADD}' 299.info ${RELDIR}: DIRDEPS='${DIRDEPS}' 300.endif 301 302# SRC_DIRDEPS is for checkout logic 303src_dirdep_list = \ 304 ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} 305 306SRC_DIRDEPS = \ 307 ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} 308 309SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:C,//+,/,g:O:u} 310 311# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put 312# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 313# in local.gendirdeps.mk 314.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" 315ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; 316 317.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} 318_include_src_dirdeps = ${ECHO_SRC_DIRDEPS} 319.else 320all: ${SRC_DIRDEPS_FILE} 321.if !target(${SRC_DIRDEPS_FILE}) 322${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} 323 @(${ECHO_SRC_DIRDEPS}) > $@ 324.endif 325.endif 326.endif 327_include_src_dirdeps ?= 328 329all: ${_DEPENDFILE} 330 331# if this is going to exist it would be there by now 332.if !exists(.depend) 333CAT_DEPEND = /dev/null 334.endif 335CAT_DEPEND ?= .depend 336 337.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} 338# we may have changed a filter 339.PHONY: ${_DEPENDFILE} 340.endif 341 342# 'cat .depend' should suffice, but if we are mixing build modes 343# .depend may contain things we don't want. 344# The sed command at the end of the stream, allows for the filters 345# to output _{VAR} tokens which we will turn into proper ${VAR} references. 346${_DEPENDFILE}: .NOMETA ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} 347 @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ 348 echo 'DIRDEPS = \'; \ 349 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 350 ${_include_src_dirdeps} \ 351 echo '.include <dirdeps.mk>'; \ 352 echo; \ 353 echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \ 354 echo '# local dependencies - needed for -jN in clean tree'; \ 355 [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ 356 echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} 357 @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} 358 359.endif # meta2deps failed 360.elif !empty(SUBDIR) 361 362DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} 363 364all: ${_DEPENDFILE} 365 366${_DEPENDFILE}: .NOMETA ${MAKEFILE} ${_this} 367 @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ 368 echo 'DIRDEPS = \'; \ 369 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 370 echo '.include <dirdeps.mk>'; \ 371 echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new 372 @${InstallNew}; InstallNew $@.new 373 374.else 375 376# nothing to do 377all ${_DEPENDFILE}: 378 379.endif 380${_DEPENDFILE}: .PRECIOUS 381 382# don't waste time looking for ways to make .meta files 383.SUFFIXES: 384