# $Id: gendirdeps.mk,v 1.46 2020/08/19 17:51:53 sjg Exp $ # Copyright (c) 2011-2020, Simon J. Gerraty # Copyright (c) 2010-2018, Juniper Networks, Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # This makefile [re]generates ${.MAKE.DEPENDFILE} # .include # Assumptions: # RELDIR is the relative path from ${SRCTOP} to ${_CURDIR} # (SRCTOP is ${SB}/src) # _CURDIR is the absolute version of ${.CURDIR} # _OBJDIR is the absolute version of ${.OBJDIR} # _objroot is realpath of ${_OBJTOP} without ${MACHINE} # this may be different from _OBJROOT if $SB/obj is a # symlink to another filesystem. # _objroot must be a prefix match for _objtop .MAIN: all # keep this simple .MAKE.MODE = compat all: _CURDIR ?= ${.CURDIR} _OBJDIR ?= ${.OBJDIR} _OBJTOP ?= ${OBJTOP} _OBJROOT ?= ${OBJROOT:U${_OBJTOP:H}} .if ${_OBJROOT:M*/} _slash=/ .else _slash= .endif _objroot ?= ${_OBJROOT:tA}${_slash} _this = ${.PARSEDIR}/${.PARSEFILE} # remember what to make _DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} # We do _not_ want to read our own output! .MAKE.DEPENDFILE = /dev/null # caller should have set this META_FILES ?= ${.MAKE.META.FILES} .if !empty(META_FILES) .if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) # so we can compare below .-include <${_DEPENDFILE}> # yes, I mean :U with no value _DIRDEPS := ${DIRDEPS:U:O:u} .endif META_FILES := ${META_FILES:T:O:u} # pickup customizations .-include # these are actually prefixes that we'll skip # they should all be absolute paths SKIP_GENDIRDEPS ?= .if !empty(SKIP_GENDIRDEPS) _skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' | .else _skip_gendirdeps = .endif # Below we will turn _{VAR} into ${VAR} which keeps this simple # GENDIRDEPS_FILTER_DIR_VARS is a list of dirs to be substiuted for. # GENDIRDEPS_FILTER_VARS is more general. # In each case order matters. .if !empty(GENDIRDEPS_FILTER_DIR_VARS) GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_DIR_VARS:@v@S,${$v},_{${v}},@} .endif .if !empty(GENDIRDEPS_FILTER_VARS) GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_VARS:@v@S,/${$v}/,/_{${v}}/,@:NS,//,*:u} .endif # this (*should* be set in meta.sys.mk) # is the script that extracts what we want. META2DEPS ?= ${.PARSEDIR}/meta2deps.sh META2DEPS := ${META2DEPS} .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != "" _time = time _sh_x = sh -x _py_d = -ddd .else _time = _sh_x = _py_d = .endif .if ${META2DEPS:E} == "py" # we can afford to do this all the time. DPDEPS ?= no META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} .if ${DPDEPS:tl} != "no" META2DEPS_CMD += -D ${DPDEPS} .endif META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' | .elif ${META2DEPS:E} == "sh" META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} OBJTOP=${_OBJTOP} .else META2DEPS_CMD ?= ${META2DEPS} .endif .if ${TARGET_OBJ_SPEC:U${MACHINE}} != ${MACHINE} META2DEPS_CMD += -T ${TARGET_OBJ_SPEC} .endif META2DEPS_CMD += \ -R ${RELDIR} -H ${HOST_TARGET} \ ${M2D_OBJROOTS:O:u:@o@-O $o@} \ ${M2D_EXCLUDES:O:u:@o@-X $o@} \ M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot} .if defined(SB_OBJROOT) M2D_OBJROOTS += ${SB_OBJROOT} .endif .if defined(STAGE_ROOT) M2D_OBJROOTS += ${STAGE_ROOT} .endif .if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" # meta2deps.py only groks objroot # so we need to give it what it expects # and tell it not to add machine qualifiers META2DEPS_ARGS += MACHINE=none .endif .if defined(SB_BACKING_SB) META2DEPS_CMD += -S ${SB_BACKING_SB}/src M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} .endif GENDIRDEPS_SEDCMDS += \ -e 's,//*$$,,;s,\.${HOST_TARGET:Uhost}$$,.host,' \ -e 's,\.${HOST_TARGET32:Uhost32}$$,.host32,' \ -e 's,\.${MACHINE}$$,,' \ -e 's:\.${TARGET_SPEC:U${MACHINE}}$$::' # we are only interested in the dirs # specifically those we read something from. # we canonicalize them to keep things simple # if we are using a split-fs sandbox, it gets a little messier. _objtop := ${_OBJTOP:tA} # some people put *.meta in META_XTRAS to make sure we get here _meta_files := ${META_FILES:N\*.meta:O:u} # assume a big list _meta_files_arg= @meta.list .if empty(_meta_files) && ${META_FILES:M\*.meta} != "" # XXX this should be considered a bad idea, # since we cannot ignore stale .meta x != cd ${_OBJDIR} && find . -name '*.meta' -print -o \( -type d ! -name . -prune \) | sed 's,^./,,' > meta.list; echo .elif ${_meta_files:[#]} > 500 .export _meta_files x != echo; for m in $$_meta_files; do echo $$m; done > meta.list # _meta_files is consuming a lot of env space # that can impact command line length, # and we do not need it any more .undef _meta_files .unexport _meta_files .else _meta_files_arg:= ${_meta_files} .endif dir_list != cd ${_OBJDIR} && \ ${META2DEPS_CMD} MACHINE=${MACHINE} \ SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ ${META2DEPS_ARGS} \ ${_meta_files_arg} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ sed ${GENDIRDEPS_SEDCMDS} .if ${dir_list:M*ERROR\:*} != "" .warning ${dir_list:tW:C,.*(ERROR),\1,} .warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} # we are not going to update anything .else dpadd_dir_list= .if !empty(DPADD) _nonlibs := ${DPADD:T:Nlib*:N*include} .if !empty(_nonlibs) ddep_list = .for f in ${_nonlibs:@x@${DPADD:M*/$x}@} .if exists($f.dirdep) ddep_list += $f.dirdep .elif exists(${f:H}.dirdep) ddep_list += ${f:H}.dirdep .else dir_list += ${f:H:tA} dpadd_dir_list += ${f:H:tA} .endif .endfor .if !empty(ddep_list) ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ sed ${GENDIRDEPS_SEDCMDS} .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" .info ${RELDIR}: raw_dir_list='${dir_list}' .info ${RELDIR}: ddeps='${ddeps}' .endif dir_list += ${ddeps} .endif .endif .endif # DIRDEPS represent things that had to have been built first # so they should all be undir OBJTOP. # Note that ${_OBJTOP}/bsd/include/machine will get reported # to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we # will want to visit bsd/include # so we add # ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} # to GENDIRDEPS_DIR_LIST_XTRAS _objtops = ${OBJTOP} ${_OBJTOP} ${_objtop} _objtops := ${_objtops:O:u} dirdep_list = \ ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \ ${GENDIRDEPS_DIR_LIST_XTRAS} # sort longest first M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} # anything we use from an object dir other than ours # needs to be qualified with its . suffix # (we used the pseudo machine "host" for the HOST_TARGET). skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@} .for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} # we need := so only skip_ql to this point applies ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} qualdir_list += ${ql.$o} .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" .info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@} .endif skip_ql+= $o* .endfor dirdep_list := ${dirdep_list:O:u} qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} DIRDEPS = \ ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} # We only consider things below $RELDIR/ if they have a makefile. # This is the same test that _DIRDEP_USE applies. # We have do a double test with dirdep_list as it _may_ contain # qualified dirs - if we got anything from a stage dir. # qualdir_list we know are all qualified. # It would be nice do peform this check for all of DIRDEPS, # but we cannot assume that all of the tree is present, # in fact we can only assume that RELDIR is. DIRDEPS += \ ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} # what modifiers do we allow in GENDIRDEPS_FILTER GENDIRDEPS_FILTER_MASK += @CMNS DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:M[${GENDIRDEPS_FILTER_MASK:O:u:ts}]*:ts:}:C,//+,/,g:O:u} .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" .info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} .info ${RELDIR}: M2D_EXCLUDES=${M2D_EXCLUDES} .info ${RELDIR}: dir_list='${dir_list}' .info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}' .info ${RELDIR}: dirdep_list='${dirdep_list}' .info ${RELDIR}: qualdir_list='${qualdir_list}' .info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' .info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' .info ${RELDIR}: FORCE_DPADD='${DPADD}' .info ${RELDIR}: DIRDEPS='${DIRDEPS}' .endif # SRC_DIRDEPS is for checkout logic src_dirdep_list = \ ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} SRC_DIRDEPS = \ ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:C,//+,/,g:O:u} # if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put # SRC_DIRDEPS_FILE = ${_DEPENDFILE} # in local.gendirdeps.mk .if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; .if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} _include_src_dirdeps = ${ECHO_SRC_DIRDEPS} .else all: ${SRC_DIRDEPS_FILE} .if !target(${SRC_DIRDEPS_FILE}) ${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} @(${ECHO_SRC_DIRDEPS}) > $@ .endif .endif .endif _include_src_dirdeps ?= all: ${_DEPENDFILE} # if this is going to exist it would be there by now .if !exists(.depend) CAT_DEPEND = /dev/null .endif CAT_DEPEND ?= .depend .if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} # we may have changed a filter .PHONY: ${_DEPENDFILE} .endif LOCAL_DEPENDS_GUARD ?= _{.MAKE.LEVEL} > 0 # 'cat .depend' should suffice, but if we are mixing build modes # .depend may contain things we don't want. # The sed command at the end of the stream, allows for the filters # to output _{VAR} tokens which we will turn into proper ${VAR} references. ${_DEPENDFILE}: .NOMETA ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ echo 'DIRDEPS = \'; \ echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ ${_include_src_dirdeps} \ echo '.include '; \ echo; \ echo '.if ${LOCAL_DEPENDS_GUARD}'; \ echo '# local dependencies - needed for -jN in clean tree'; \ [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} .endif # meta2deps failed .elif !empty(SUBDIR) DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} all: ${_DEPENDFILE} ${_DEPENDFILE}: .NOMETA ${MAKEFILE} ${_this} @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ echo 'DIRDEPS = \'; \ echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ echo '.include '; \ echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new @${InstallNew}; InstallNew $@.new .else # nothing to do all ${_DEPENDFILE}: .endif ${_DEPENDFILE}: .PRECIOUS # don't waste time looking for ways to make .meta files .SUFFIXES: