1# $Id: gendirdeps.mk,v 1.26 2014/09/05 04:40:52 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# 28# This makefile [re]generates ${.MAKE.DEPENDFILE} 29# 30 31.include <install-new.mk> 32 33# Assumptions: 34# RELDIR is the relative path from ${SRCTOP} to ${_CURDIR} 35# (SRCTOP is ${SB}/src) 36# _CURDIR is the absolute version of ${.CURDIR} 37# _OBJDIR is the absolute version of ${.OBJDIR} 38# _objroot is realpath of ${_OBJTOP} without ${MACHINE} 39# this may be different from _OBJROOT if $SB/obj is a 40# symlink to another filesystem. 41# _objroot must be a prefix match for _objtop 42 43.MAIN: all 44 45# keep this simple 46.MAKE.MODE = compat 47 48all: 49 50_CURDIR ?= ${.CURDIR} 51_OBJDIR ?= ${.OBJDIR} 52_OBJTOP ?= ${OBJTOP} 53_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 54.if ${_OBJROOT:M*/} 55_slash=/ 56.else 57_slash= 58.endif 59_objroot ?= ${_OBJROOT:tA}${_slash} 60 61_this = ${.PARSEDIR}/${.PARSEFILE} 62 63# remember what to make 64_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 65 66# We do _not_ want to read our own output! 67.MAKE.DEPENDFILE = /dev/null 68 69# caller should have set this 70META_FILES ?= ${.MAKE.META.FILES} 71 72.if !empty(META_FILES) 73 74.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 75# so we can compare below 76.-include <${_DEPENDFILE}> 77# yes, I mean :U with no value 78_DIRDEPS := ${DIRDEPS:U:O:u} 79.endif 80 81META_FILES := ${META_FILES:T:O:u} 82.export META_FILES 83 84# pickup customizations 85.-include "local.gendirdeps.mk" 86 87# these are actually prefixes that we'll skip 88# they should all be absolute paths 89SKIP_GENDIRDEPS ?= 90.if !empty(SKIP_GENDIRDEPS) 91_skip_gendirdeps = egrep -v '^(${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@} 142 143 144M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot} 145.if defined(SB_OBJROOT) 146M2D_OBJROOTS += ${SB_OBJROOT} 147.endif 148.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" 149# meta2deps.py only groks objroot 150# so we need to give it what it expects 151# and tell it not to add machine qualifiers 152META2DEPS_ARGS += MACHINE=none 153.endif 154.if defined(SB_BACKING_SB) 155META2DEPS_CMD += -S ${SB_BACKING_SB}/src 156M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} 157.endif 158 159# we are only interested in the dirs 160# sepecifically those we read something from. 161# we canonicalize them to keep things simple 162# if we are using a split-fs sandbox, it gets a little messier. 163_objtop := ${_OBJTOP:tA} 164dir_list != cd ${_OBJDIR} && \ 165 ${META2DEPS_CMD} MACHINE=${MACHINE} \ 166 SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ 167 ${META2DEPS_ARGS} \ 168 ${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 169 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,' 170 171.if ${dir_list:M*ERROR\:*} != "" 172.warning ${dir_list:tW:C,.*(ERROR),\1,} 173.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} 174# we are not going to update anything 175.else 176dpadd_dir_list= 177.if !empty(DPADD) 178_nonlibs := ${DPADD:T:Nlib*:N*include} 179.if !empty(_nonlibs) 180ddep_list = 181.for f in ${_nonlibs:@x@${DPADD:M*/$x}@} 182.if exists($f.dirdep) 183ddep_list += $f.dirdep 184.elif exists(${f:H}.dirdep) 185ddep_list += ${f:H}.dirdep 186.else 187dir_list += ${f:H:tA} 188dpadd_dir_list += ${f:H:tA} 189.endif 190.endfor 191.if !empty(ddep_list) 192ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 193 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,' 194 195.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 196.info ${RELDIR}: raw_dir_list='${dir_list}' 197.info ${RELDIR}: ddeps='${ddeps}' 198.endif 199dir_list += ${ddeps} 200.endif 201.endif 202.endif 203 204# DIRDEPS represent things that had to have been built first 205# so they should all be undir OBJTOP. 206# Note that ${_OBJTOP}/bsd/include/machine will get reported 207# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we 208# will want to visit bsd/include 209# so we add 210# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} 211# to GENDIRDEPS_DIR_LIST_XTRAS 212_objtops = ${OBJTOP} ${_OBJTOP} ${_objtop} 213_objtops := ${_objtops:O:u} 214dirdep_list = \ 215 ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \ 216 ${GENDIRDEPS_DIR_LIST_XTRAS} 217 218# sort longest first 219M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} 220 221# anything we use from an object dir other than ours 222# needs to be qualified with its .<machine> suffix 223# (we used the pseudo machine "host" for the HOST_TARGET). 224skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@} 225.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} 226# we need := so only skip_ql to this point applies 227ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} 228qualdir_list += ${ql.$o} 229.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 230.info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@} 231.endif 232skip_ql+= $o* 233.endfor 234 235dirdep_list := ${dirdep_list:O:u} 236qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} 237 238DIRDEPS = \ 239 ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ 240 ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} 241 242# We only consider things below $RELDIR/ if they have a makefile. 243# This is the same test that _DIRDEP_USE applies. 244# We have do a double test with dirdep_list as it _may_ contain 245# qualified dirs - if we got anything from a stage dir. 246# qualdir_list we know are all qualified. 247# It would be nice do peform this check for all of DIRDEPS, 248# but we cannot assume that all of the tree is present, 249# in fact we can only assume that RELDIR is. 250DIRDEPS += \ 251 ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ 252 ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} 253 254DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:C,//+,/,g:O:u} 255 256.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 257.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} 258.info ${RELDIR}: dir_list='${dir_list}' 259.info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}' 260.info ${RELDIR}: dirdep_list='${dirdep_list}' 261.info ${RELDIR}: qualdir_list='${qualdir_list}' 262.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' 263.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' 264.info ${RELDIR}: FORCE_DPADD='${DPADD}' 265.info ${RELDIR}: DIRDEPS='${DIRDEPS}' 266.endif 267 268# SRC_DIRDEPS is for checkout logic 269src_dirdep_list = \ 270 ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} 271 272SRC_DIRDEPS = \ 273 ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} 274 275SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:C,//+,/,g:O:u} 276 277# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put 278# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 279# in local.gendirdeps.mk 280.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" 281ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; 282 283.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} 284_include_src_dirdeps = ${ECHO_SRC_DIRDEPS} 285.else 286all: ${SRC_DIRDEPS_FILE} 287.if !target(${SRC_DIRDEPS_FILE}) 288${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} 289 @(${ECHO_SRC_DIRDEPS}) > $@ 290.endif 291.endif 292.endif 293_include_src_dirdeps ?= 294 295all: ${_DEPENDFILE} 296 297# if this is going to exist it would be there by now 298.if !exists(.depend) 299CAT_DEPEND = /dev/null 300.endif 301CAT_DEPEND ?= .depend 302 303.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} 304# we may have changed a filter 305.PHONY: ${_DEPENDFILE} 306.endif 307 308# 'cat .depend' should suffice, but if we are mixing build modes 309# .depend may contain things we don't want. 310# The sed command at the end of the stream, allows for the filters 311# to output _{VAR} tokens which we will turn into proper ${VAR} references. 312${_DEPENDFILE}: ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} 313 @(echo '# Autogenerated - do NOT edit!'; echo; \ 314 echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \ 315 echo 'DIRDEPS = \'; \ 316 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 317 ${_include_src_dirdeps} \ 318 echo '.include <dirdeps.mk>'; \ 319 echo; \ 320 echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \ 321 echo '# local dependencies - needed for -jN in clean tree'; \ 322 [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ 323 echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} 324 @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} 325 326.endif # meta2deps failed 327.elif !empty(SUBDIR) 328 329DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} 330 331all: ${_DEPENDFILE} 332 333${_DEPENDFILE}: ${MAKEFILE} ${_this} 334 @(echo '# Autogenerated - do NOT edit!'; echo; \ 335 echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \ 336 echo 'DIRDEPS = \'; \ 337 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 338 echo '.include <dirdeps.mk>'; \ 339 echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new 340 @${InstallNew}; InstallNew $@.new 341 342.else 343 344# nothing to do 345all ${_DEPENDFILE}: 346 347.endif 348${_DEPENDFILE}: .PRECIOUS 349